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Author : Franziska Muckel
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (14 download)
Download or read book Transition Metal Doped Colloidal Semiconductor Nanocrystals written by Franziska Muckel and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tejinder Singh
Publisher :
ISBN 13 :
Total Pages : 225 pages
Book Rating : 4.:/5 (748 download)
Download or read book Atomic-scale Modeling of Transition-metal Doping of Semiconductor Nanocrystals written by Tejinder Singh and published by . This book was released on 2011 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doping in bulk semiconductors (e.g., n- or p- type doping in silicon) allows for precise control of their properties and forms the basis for the development of electronic and photovoltaic devices. Recently, there have been reports on the successful synthesis of doped semiconductor nanocrystals (or quantum dots) for potential applications in solar cells and spintronics. For example, nanocrystals of ZnSe (with zinc-blende lattice structure) and CdSe and ZnO (with wurtzite lattice structure) have been doped successfully with transition-metal (TM) elements (Mn, Co, or Ni). Despite the recent progress, however, the underlying mechanisms of doping in colloidal nanocrystals are not well understood. This thesis reports a comprehensive theoretical analysis toward a fundamental kinetic and thermodynamic understanding of doping in ZnO, CdSe, and ZnSe quantum dots based on first-principles density-functional theory (DFT) calculations. The theoretical predictions of this thesis are consistent with experimental measurements and provide fundamental interpretations for the experimental observations. The mechanisms of doping of colloidal ZnO nanocrystals with the TM elements Mn, Co, and Ni is investigated. The dopant atoms are found to have high binding energies for adsorption onto the Zn-vacancy site of the (0001) basal surface and the O-vacancy site of the (0001) basal surface of ZnO nanocrystals; therefore, these surface vacancies provide viable sites for substitutional doping, which is consistent with experimental measurements. However, the doping efficiencies are affected by the strong tendencies of the TM dopants to segregate at the nanocrystal surface facets, as indicated by the corresponding computed dopant surface segregation energy profiles. Furthermore, using the Mn doping of CdSe as a case study, the effect of nanocrystal size on doping efficiency is explored. It is shown that Mn adsorption onto small clusters of CdSe is characterized by high binding energies, which, in conjunction with the Mn surface segregation characteristics on CdSe nanocrystals, explains experimental reports of high doping efficiency for small-size CdSe clusters. In addition, this thesis presents a systematic analysis of TM doping in ZnSe nanocrystals. The analysis focuses on the adsorption and surface segregation of Mn dopants on ZnSe nanocrystal surface facets, as well as dopant-induced nanocrystal morphological transitions, and leads to a fundamental understanding of the underlying mechanisms of dopant incorporation into growing nanocrystals. Both surface kinetics (dopant adsorption onto the nanocrystal surface facets) and thermodynamics (dopant surface segregation) are found to have a significant effect on the doping efficiencies in ZnSe nanocrystals. The analysis also elucidates the important role in determining the doping efficiency of ZnSe nanocrystals played by the chemical potentials of the growth precursor species, which determine the surface structure and morphology of the nanocrystals.
Author : Michael Robert Rutherford
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (71 download)
Download or read book Determination of Dopant Ion Mobility in Transition Metal Doped Semiconductor Nanocrystals written by Michael Robert Rutherford and published by . This book was released on 2010 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vladimir Lesnyak
Publisher : Frontiers Media SA
ISBN 13 : 2889632695
Total Pages : 110 pages
Book Rating : 4.8/5 (896 download)
Download or read book Colloidal Semiconductor Nanocrystals: Synthesis, Properties, and Applications written by Vladimir Lesnyak and published by Frontiers Media SA. This book was released on 2020-01-06 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth D. Karlin
Publisher : John Wiley & Sons
ISBN 13 : 0471725552
Total Pages : 544 pages
Book Rating : 4.4/5 (717 download)
Download or read book Progress in Inorganic Chemistry written by Kenneth D. Karlin and published by John Wiley & Sons. This book was released on 2005-06-14 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cutting edge of scientific reporting . . . PROGRESS in Inorganic Chemistry Nowhere is creative scientific talent busier than in the world ofinorganic chemistry experimentation. Progress in InorganicChemistry continues in its tradition of being the most respectedavenue for exchanging innovative research. This series providesinorganic chemists and materials scientists with a forum forcritical, authoritative evaluations of advances in every area ofthe discipline. With contributions from internationally renownedchemists, this latest volume offers an in-depth, far-rangingexamination of the changing face of the field, providing atantalizing glimpse of the emerging state of the science. "This series is distinguished not only by its scope and breadth,but also by the depth and quality of the reviews." -Journal of the American Chemical Society "[This series] has won a deservedly honored place on the bookshelfof the chemist attempting to keep afloat in the torrent of originalpapers on inorganic chemistry." -Chemistry in Britain CONTENTS OF VOLUME 54 * Atomlike Building Units of Adjustable Character: Solid-State andSolution Routes to Manipulating Hexanuclear Transition MetalChalcohalide Clusters (Eric J. Welch and Jeffrey R. Long) * Doped Semiconductor Nanocrystals: Synthesis, Characterization,Physical Properties, and Applications (J. Daniel Bryan and DanielR. Gamelin) * Stereochemical Aspects of Metal Xanthane Complexes: MolecularStructures and Supramolecular Self-Assembly (Edward R. T. Tiekinkand Ionel Haiduc) * Trivalent Uranium: A Versatile Species for Molecular Activation(Ilia Korobkov and Sandro Gambarotta) * Comparison of the Chemical Biology of NO and HNO: An InorganicPerspective (Katrina M. Miranda and David A. Wink) * Alterations of Nucleobase pKa Values upon Metal Coordination:Origins and Consequences (Bernhard Lippert) * Functionalization of Myoglobin (Yoshihito Watanabe and TakashiHayashi)
Author : William Harrigan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)
Download or read book Modulating Dopant-defect Interactions in Transition Metal Doped Colloidal Strontium Titanate Nanocrystals written by William Harrigan and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskites such as strontium titanate, a wide band gap semiconductor have been widely studied due to the multitude of potential applications in photocatalysis, multiferroics, sensing, and microelectronics. Various novel optical, electrical and magnetic properties can be imparted through the introduction of different transition metal dopant ions. The introduction of these impurities has been shown to impart functionality for various applications. The use of Cr3+ has been shown to introduce defect levels into the band structure of SrTiO3 and increase visible light utilization for photocatalysis. Transition metal doped highly crystalline colloidal SrTiO3 nanocrystals (NC) were synthesized using two modified hydrothermal (HT) synthesis methods and subsequently characterized. Structural characterization techniques such as powder X-ray diffraction (XRD), tunneling electron microscopy (TEM) and high-resolution tunneling electron microscopy (HR-TEM) proved vital in confirming the successful synthesis of highly crystalline sub-10 nm nanocubes. The use of transition metal doped colloidal nanocrystals will look to better understand dopant incorporation and subsequent defect formation and their interactions on the nm scale. The use of dopant specific spectroscopies such as electron paramagnetic resonance (EPR) spectroscopy was crucial in determining both the transition metal dopant oxidation state and dopant position in the colloidal NCs. Through the use of EPR spectroscopy the dopants and defects were unambiguously identified and characterized. Various surface related oxygen defects were identified and correlated to emerge under specific synthetic conditions. Site-selective internal doping of Cr or Mn was achieved through either modified HT methods. The extent of the dopant-defect interactions was studied using a photodoping technique. Under anaerobic conditions and in the presence of a hole quencher, the interactions of the photoinduced electron with SrTiO3 were monitored. The photoinduced changes were tracked using electronic absorption spectroscopy and EPR spectroscopy. An in-depth EPR analysis showed the photoinduced electron localizes on titanium atoms and undergoes cross relaxation with neighboring Cr ions.
Author : Victor I. Klimov
Publisher : CRC Press
ISBN 13 : 1351834525
Total Pages : 584 pages
Book Rating : 4.3/5 (518 download)
Download or read book Nanocrystal Quantum Dots written by Victor I. Klimov and published by CRC Press. This book was released on 2017-12-19 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of recent advancements in colloidal nanocrystals and quantum-confined nanostructures, Nanocrystal Quantum Dots is the second edition of Semiconductor and Metal Nanocrystals: Synthesis and Electronic and Optical Properties, originally published in 2003. This new title reflects the book’s altered focus on semiconductor nanocrystals. Gathering contributions from leading researchers, this book contains new chapters on carrier multiplication (generation of multiexcitons by single photons), doping of semiconductor nanocrystals, and applications of nanocrystals in biology. Other updates include: New insights regarding the underlying mechanisms supporting colloidal nanocrystal growth A revised general overview of multiexciton phenomena, including spectral and dynamical signatures of multiexcitons in transient absorption and photoluminescence Analysis of nanocrystal-specific features of multiexciton recombination A review of the status of new field of carrier multiplication Expanded coverage of theory, covering the regime of high-charge densities New results on quantum dots of lead chalcogenides, with a focus studies of carrier multiplication and the latest results regarding Schottky junction solar cells Presents useful examples to illustrate applications of nanocrystals in biological labeling, imaging, and diagnostics The book also includes a review of recent progress made in biological applications of colloidal nanocrystals, as well as a comparative analysis of the advantages and limitations of techniques for preparing biocompatible quantum dots. The authors summarize the latest developments in the synthesis and understanding of magnetically doped semiconductor nanocrystals, and they present a detailed discussion of issues related to the synthesis, magneto-optics, and photoluminescence of doped colloidal nanocrystals as well. A valuable addition to the pantheon of literature in the field of nanoscience, this book presents pioneering research from experts whose work has led to the numerous advances of the past several years.
Download or read book Doping And Photophysical Properties Of II-VI Semiconductor Nanocrystals written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor nanocrystals with sizes comparable to the corresponding bulk excitonic diameter exhibit unique size-dependent electronic and optical properties resulting from quantum confinement effect. Such nanocrystals not only allow the study of evolution of bulk properties from the molecular limit providing important fundamental understandings, but also have great technological implications, leading to intense research over the past several years. Besides tuning the crystal size in the nm regime to obtain novel properties, an additional route to derive new functionalities has been to dope transition metal ions into a semiconductor host. Thus, transition metal doped nanocrystals are of great interest since it allows two independent ways to functionalize semiconductor materials, one via the tunability of properties by size variation and other due to properties of such dopants. Chapter 1 of the thesis provide a general introduction to the subject matters dealt in with this thesis, while the necessary methodologies have been discussed in chapter 2. Chapters 3 and 4 of this thesis deal with nanocrystal doping. Following suggestions in previous literatures that the doping of nanocrystal depends strongly upon the crystal structure of the synthesized host nanocrystal, we have studied the phase-transformation between the somewhat zinc-blende and the usual wurtzite structures for CdS and CdSe nanocrystals in chapter 5. In chapter 6 we have pointed out that a gradient structure is essential to achieve nearly ideal photoluminescence efficiency using heterostructured nanocrystals and also achieved strong two-photon absorptions, adding optical bifunctionality to these nanocrystals. Finally, in chapter 7, we establish different approaches to generate white-light using nanocrystals and their unique advantages, as a first step to realizing white light emitting devices. Chapter 1 provides a brief introduction to various interesting properties and concepts relevant for the studies c.
Author :
Publisher : Elsevier
ISBN 13 : 0128133589
Total Pages : 608 pages
Book Rating : 4.1/5 (281 download)
Download or read book Colloidal Metal Oxide Nanoparticles written by and published by Elsevier. This book was released on 2019-10-16 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Colloidal Metal Oxide Nanoparticles: Synthesis, Characterization and Applications is a one-stop reference for anyone with an interest in the fundamentals, synthesis and applications of this interesting materials system. The book presents a simple, effective and detailed discussion on colloidal metal oxide nanoparticles. It begins with a general introduction of colloidal metal oxide nanoparticles, then delves into the most relevant synthesis pathways, stabilization procedures, and synthesis and characterization techniques. Final sections discuss promising applications, including bioimaging, biosensing, diagnostic, and energy applications—i.e., solar cells, supercapacitors and environment applications—i.e., the treatment of contaminated soil, water purification and waste remediation. Provides the most comprehensive resource on the topic, from fundamentals, to synthesis and characterization techniques Presents key applications, including biomedical, energy, electronic and environmental Discusses the most relevant techniques for synthesis, patterning and characterization
Author : Lisa Nicole Hutfluss
Publisher :
ISBN 13 :
Total Pages : 81 pages
Book Rating : 4.:/5 (96 download)
Download or read book Studies in Pure and Transition Metal Doped Indium Oxide Nanocrystals written by Lisa Nicole Hutfluss and published by . This book was released on 2015 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling the crystal structure of transparent metal oxides is essential for tailoring the properties of these polymorphic materials to specific applications. Structural control is usually achieved via solid state phase transformation at high temperature or pressure. The first half of this work is a kinetic study of in situ phase transformation of In2O3 nanocrystals from metastable rhombohedral phase to stable cubic phase during their colloidal synthesis. By examining the phase content as a function of time using the model fitting approach, two distinct coexisting mechanisms are identified - surface and interface nucleation. It is shown that the mechanism of phase transformation can be controlled systematically through modulation of temperature and precursor to solvent ratio. The increase in both of these parameters leads to gradual change from surface to interface nucleation, which is associated with the increased probability of nanocrystal contact formation in the solution phase. The activation energy for surface nucleation is found to be 144±30 kJ/mol, very similar to that for interface nucleation. In spite of the comparable activation energy, interface nucleation dominates at higher temperatures due to increased nanocrystal interactions. The results of this work demonstrate enhanced control over polymorphic nanocrystal systems, and contribute to further understanding of the kinetic processes at the nanoscale, including nucleation, crystallization, and biomineralization. The ability to further modify the properties of transparent metal oxides through doping of transition metal ions into the host lattice offers a world of possibilities in terms of viable systems and applications. In particular, the use of transition metal dopants to induce room temperature ferromagnetic behaviour in non-magnetic transparent metal oxides is highly desirable for applications such as spintronics. Thus, the second half of this study is concerned with the doping of Fe into nanocrystalline In2O3 via colloidal synthesis and the fundamental characterization of the nanocrystals in anticipation of further development of these materials for potential spintronics applications. Focus is placed on the relationship between the doping concentration, observed phase of the host lattice, and nanocrystal growth and properties. Structural characterizations determine that Fe as a dopant behaves quite unlike previously studied dopants, Cr and Mn, establishing a positive correlation between increasing nanocrystal size and increasing doping concentration; the opposite was observed in the aforementioned previous systems. Through analysis of X-ray absorption near edge structure spectra and the pre-edge feature, it is found that ca. 10% of the assimilated Fe is reduced to Fe2+ during synthesis. Magnetization measurements reveal that these nanocrystals are weakly ferromagnetic at room temperature, suggesting the possibility of an interfacial defect mediated mechanism of magnetic interactions. With increasing doping concentration, the decrease in saturation magnetization suggests a change in the magnetic exchange interaction and a consequential switch from ferromagnetic to antiferromagnetic behaviour. It is clear from this work that colloidal Fe-doped In2O3 nanocrystals are a promising species, prompting further investigation using additional spectroscopic and magneto-optical techniques to increase understanding of the origin of the observed properties. A thorough understanding of this system in conjunction with other transition metal doped transparent conducting oxides will enable enhanced control in the materials design process and effectively allow tailoring of these materials for specific applications, such as spintronics.
Author : Yi Tan
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (19 download)
Download or read book Study of Plasmonic and Magneto-optical Properties of Transition Metal Doped Indium Oxide Nanocrystals written by Yi Tan and published by . This book was released on 2019 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonic nanostructure materials have been widely investigated recently because of their considerable potential for applications in biological and chemical sensors, nano-optical devices and photothermal therapy. Compared to metal nanocrystals (NCs), doped semiconductor NCs with tunable localized surface plasmon resonance (LSPR) from near-infrared (NIR) mid-infrared (MIR) region bring more opportunities to the applications of plasmonics. Magnetoplasmonic nanostructures which could be utilized in multifunctional devices also have attracted attention due to the combination of plasmonic and magnetic properties and the manipulation of light with external magnetic fields. In this research, indium oxide (In2O3) as a typical n-type semiconductor with high mobility and carrier concentration is selected as the host lattice for doping, and molybdenum (Mo) and tungsten (W) which are transition metal elements from the same group as dopants. Colloidal molybdenum-doped indium oxide (IMO) NCs and tungsten-doped indium oxide (IWO) NCs with varying doping concentrations have been successfully synthesized, and their plasmonic and magneto-optical properties have been explored. Similarities and differences between IMO NCs and IWO NCs were discussed. Both IMO and IWO NCs have shown good tunability of plasmon resonance in the MIR range approximately from 0.22 eV to 0.34 eV. 9.2 % IMO NCs show the strongest LSPR at 0.34 eV and the maximum free electron concentration of 1.1x1020 cm-3, and 1.5 % IWO NCs exhibit the strongest LSPR at 0.33 eV with the free electron concentration of 0.94x1020 cm-3. The magneto-optical properties were studied by magnetic circular dichroism (MCD) spectroscopy. The variable-temperature-variable-field MCD spectra that coincide with the band gap absorption, indicate the excitonic splitting in the NCs. A robust MCD intensity at room temperature suggests intrinsic plasmon-exciton coupling and carrier polarization induced by plasmon, which might be phonon-mediated. A decrease in MCD signal with temperature and the saturation-like field dependence of MCD intensity for IMO and IWO NCs may related to the different oxidation states of the dopant ions since the reduced 5+ oxidation states can exhibit the Curie-type paramagnetism. IMO and IWO NCs show the coupling between exciton and plasmon in a single-phase which opens a possibility for their application in electronics and photonics. Moreover, magnetoplasmonic modes provide a new degree of freedom for controlling carrier polarization at room temperature in practical photonic, optoelectronic and quantum-information processing devices.
Author : Victor I. Klimov
Publisher : CRC Press
ISBN 13 : 0203913264
Total Pages : 505 pages
Book Rating : 4.2/5 (39 download)
Download or read book Semiconductor and Metal Nanocrystals written by Victor I. Klimov and published by CRC Press. This book was released on 2003-11-07 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vast technological potential of nanocrystalline materials, as well as current intense interest in the physics and chemistry of nanoscale phenomena, has led to explosive growth in research on semiconductor nanocrystals, also known as nanocrystal quantum dots, and metal nanoparticles. Semiconductor and Metal Nanocrystals addresses current topics impacting the field including synthesis and assembly of nanocrystals, theory and spectroscopy of interband and intraband optical transitions, single-nanocrystal optical and tunneling spectroscopies, electrical transport in nanocrystal assemblies, and physical and engineering aspects of nanocrystal-based devices. Written by experts who have contributed pioneering research, this reference comprises key advances in the field of semiconductor nanocrystal quantum dots and metal nanoparticles over the past several years. Focusing specifically on nanocrystals generated through chemical techniques, Semiconductor and Metal Nanocrystals Merges investigative frontiers in physics, chemistry, and engineering Documents advances in nanocrystal synthesis and assembly Explores the theory of electronic excitations in nanoscale particles Presents comprehensive information on optical spectroscopy of interband and intraband optical transitions Reviews data on single-nanocrystal optical and tunneling spectroscopies Weighs controversies related to carrier relaxation dynamics in ultrasmall nanoparticles Discusses charge carrier transport in nanocrystal assemblies Provides examples of lasing and photovoltaic nanocrystal-based devices Semiconductor and Metal Nanocrystals is a must read for scientists, engineers, and upper-level undergraduate and graduate students interested in the physics and chemistry of nanoscale semiconductor and metal particles, as well as general nanoscale science.
Author : Vitaly Proshchenko
Publisher :
ISBN 13 : 9781369720341
Total Pages : 169 pages
Book Rating : 4.7/5 (23 download)
Download or read book Theoretical Investigation of Magnetic and Optical Properties of Semiconductor Nanocrystals written by Vitaly Proshchenko and published by . This book was released on 2016 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the theoretical investigation of physical properties of pure and transition metal doped semiconductor nanostructures. First we study optical and energy (the density of states) spectra for Cd[subscript]mSe[subscript]m clusters of various sizes and shapes, such as spheres, cubes, nanorods, and nanotubes. This work requires a careful computational analysis where a proper exchange-correlation functional has to be chosen to fit the experimental data. The next part of the thesis deals with the magnetic properties of manganese doped CdSe, ZnSe, ZnS, and CdS quantum dots (QDs). We theoretically explain the effect of dual luminescence and show that in the case with CdSe quantum dots the luminescence becomes tunable by a QD size. We also study the concentration dependence of magnetic order and optical transitions in Mn doped CdSe nanocrystals. Room temperature d[superscript]0 ferromagnetism is studied in ZnS quantum dots and nanowires in Chapter 4. To find the magnetization of the medium and large size nanocrystals we introduce the surface-bulk (SB) model. We show that the condensation of Zn vacancies into a single droplet takes place which leads to the week d[superscript]0 ferromagnetism in ZnS nanocrystals. In the last Chapter we study electronic, optical, and charge transport properties of two new holey 2D materials, ELH-g-C2N-H and ELH-g-C2N-Br with hydrogen and bromine side-groups, respectively. Since the two 2D crystals under study have not been synthesized yet, we provide the stability analysis and prove that the calculated crystal structures correspond to the global energy minimum criterion.
Author : Junling Qu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (126 download)
Download or read book Colloidal Semiconductor Nanocrystals for Optoelectronic Applications written by Junling Qu and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanocrystals with a dimension below their excitonic Bohr radius can provide size-tunable optoelectronic properties, enabling on-demand tailoring of properties for specific applications. Especially, the advance of wet chemistry synthesis of colloidal nanocrystals makes them promising building blocks for the next-generation solution-processible low-cost optoelectronics such as light emitting, sensing, and harvesting. My thesis targets two aspects of the nanocrystal-based devices: infrared (IR) photodetector and light emitting diode (LED). My thesis is first focused on the heavy-metal-free IR photodetection using the intraband transition of self-doped Ag2Se or the plasmonic resonance of remotely doped ITO (tin doped indium oxide) nanocrystals. Before integrating them to photoconductive devices, I study their optical and transport properties as well as their energy spectra. I then test their IR photodetection performance and rationalize their weak performance compared with their heavy metal counterparts. In the second part of my thesis, I advance to the all-solution nanocrystal-based LEDs in the visible and SWIR, with an emphasis on their practical applications. The designed visible LED using CdSe/CdZnS nanoplatelets (NPLs) shows the lowest turn-on voltage and the longest lifetime for NPL-based LED. I also provide insights on the origin of efficiency droop. Then, this LED is coupled with a homemade PbS broadband photodetector to achieve, for the first time, an all-nanocrystal based LiFi-like communication setup. For SWIR LEDs, HgTe is used as IR emitter. By forming a HgTe/ZnO bulk heterojunction in the emitting layer, a bright SWIR LED capable of active imaging is obtained.
Author : Sajjad Haider
Publisher : BoD – Books on Demand
ISBN 13 : 1839680482
Total Pages : 121 pages
Book Rating : 4.8/5 (396 download)
Download or read book Transition Metal Compounds written by Sajjad Haider and published by BoD – Books on Demand. This book was released on 2021-06-09 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores synthesis, structural changes, properties, and potential applications of transition metal (TM) compounds. Over three sections, chapters cover such topics as the synthesis of pentoxide vanadium (V2O5), the effect of TM compounds on structural, dielectric properties and high-temperature superconductors, and TM-doped nanocrystals (NCs).
Author : Xinyu Liu
Publisher : Woodhead Publishing
ISBN 13 : 0081027362
Total Pages : 398 pages
Book Rating : 4.0/5 (81 download)
Download or read book Chalcogenide written by Xinyu Liu and published by Woodhead Publishing. This book was released on 2019-11-14 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chalcogenide: From 3D to 2D and Beyond reviews graphene-like 2D chalcogenide systems that include topological insulators, interesting thermoelectric structures, and structures that exhibit a host of spin phenomena that are unique to 2D and lower-dimensional geometries. The book describes state-of-the-art materials in growth and fabrication, magnetic, electronic and optical characterization, as well as the experimental and theoretical aspects of this family of materials. Bulk chalcogenides, chalcogenide films, their heterostructures and low-dimensional chalcogenide-based quantum structures are discussed. Particular attention is paid to findings that are relevant to the continued search for new physical phenomena and new functionalities. Finally, the book covers the enormous opportunities that have emerged as it has become possible to achieve lower-dimensional chalcogenide structures by epitaxial techniques. Provides readers with foundational information on the materials growth, fabrication, magnetic, electronic and optical characterization of chalcogenide materials Discusses not only bulk chalcogenides and chalcogenide thin films, but also two-dimensional chalcogenide materials systems Reviews the most important applications in optoelectronics, photovoltaics and thermoelectrics
Author : Andrey Rogach
Publisher : Springer Science & Business Media
ISBN 13 : 3211752374
Total Pages : 374 pages
Book Rating : 4.2/5 (117 download)
Download or read book Semiconductor Nanocrystal Quantum Dots written by Andrey Rogach and published by Springer Science & Business Media. This book was released on 2008-09-02 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to specifically focus on semiconductor nanocrystals, and address their synthesis and assembly, optical properties and spectroscopy, and potential areas of nanocrystal-based devices. The enormous potential of nanoscience to impact on industrial output is now clear. Over the next two decades, much of the science will transfer into new products and processes. One emerging area where this challenge will be very successfully met is the field of semiconductor nanocrystals. Also known as colloidal quantum dots, their unique properties have attracted much attention in the last twenty years.
