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Controlled Cadmium Telluride Thin Films For Solar Cell Applications Emerging Materials Systems For Solar Cell Applications Quarterly Progress Report No 3 October 9 1979 January 8 1980
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Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Quarterly Progress Report No. 3, October 9, 1979-January 8, 1980 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Quarterly Progress Report No. 3, October 9, 1979-January 8, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main emphasis during the third quarter of the program was on the improvement of the quality of sputtered films, their characterization and use in the fabrication of Schottky barrier type diodes and solar cell structures. Films prepared under different conditions and on different substrates were examined by SEM showing nodular growths under certain conditions. I-V, C-V and photovoltaic characteristics were measured on numerous samples based on n- and p-type films on Ni substrates having top metallization of either evaporated Au and Al. The n-type samples showed up to 200mV V/sub oc/ and small short-circuit currents. The characteristics observed are indicative of the presence of interfacial layer and surface states. Surface state's capacitance were measured on p-type samples metallized with Au.
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications by : K. Vedam
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications written by K. Vedam and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1980 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Final Technical Report, April 9, 1979-April 8, 1980 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Final Technical Report, April 9, 1979-April 8, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: After a brief review of the work done during the first three quarters, the work done during the last quarter is discussed in detail. In brief, CdTe sputtered self-doped and indium-doped n-type layers on Ni-film on glass have been investigated for film resistivity, contact resistance, Hall mobility and Schottky barrier diode characteristics. Ni has been found to provide satisfactory ohmic contacts and self-doped samples have indicated Hall mobility of approximately 8cm2/Vsec when the effective doping concentration is approximately 1018cm−3. Use of indium doped sputtered films, when properly surface treated prior to metallization, appear to yield the best kind of Schottky barrier diode with approximate barrier height of 0.77 volt and Richardson constant A* approx. = 60 A/cm2°K2. In spite of these attractive parameter values, these devices showed low V/sub oc/ and the capacitance showed unexpected frequency dependence that require further investigation. Finally suggestions for future work is presented.
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications by : K. Vedam
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications written by K. Vedam and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications by : M. B. Das
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications written by M. B. Das and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar-cell Applications by : M. B. Das
Download or read book Controlled Cadmium Telluride Thin Films for Solar-cell Applications written by M. B. Das and published by . This book was released on 1981 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications by : M. B. Das
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications written by M. B. Das and published by . This book was released on 1981 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar-cell Applications by : M. B. Das
Download or read book Controlled Cadmium Telluride Thin Films for Solar-cell Applications written by M. B. Das and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1981 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cells Applications. First Quarterly Report, June 1, 1980-September 1, 1980 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cells Applications. First Quarterly Report, June 1, 1980-September 1, 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the first quarter of this renewed program, efforts have been extended mainly to set up a new ion beam sputtering system that would replace our existing r.f. sputtering system for the fabrication of doped CdTe thin films for solar cell applications. Preliminary attempts with this new equipment resulted in films with rather large grain size (0.8.mu. - 1.mu.m) at an elevated substrate temperature. While this in itself is encouraging, certain difficulties were confronted in achieving the total control of the system which prevented the deposition of films with satisfactory quality. While attention is being given to bring the system under control, frequency dependent capacitance and conductance measurements were conducted on Schottky barrier diodes prepared from earlier deposited films. The results indicate presence of possible deep levels with distributed energy that might have limited the photovoltaic performance of these samples by reducing carrier lifetime. This appears to justify the decision to change the old r.f. sputtering system in favor of an ion beam sputtering system for this investigation.
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cells Applications by : M. B. Das
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cells Applications written by M. B. Das and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar-Cell Applications; Final Technical Report for the Period June 1, 1980 to May 31, 1981 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar-Cell Applications; Final Technical Report for the Period June 1, 1980 to May 31, 1981 written by and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications by : K. Vedam
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications written by K. Vedam and published by . This book was released on 1979 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications. Second Quarterly Report, September 1-December 1, 1980 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications. Second Quarterly Report, September 1-December 1, 1980 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A thermal annealing procedure to improve the photovoltaic and other electrical characteristics of CdTe sputtered films doped with In is described. For an understanding of the characteristics of these films, SEM, Auger electron spectroscopy and scanning ellipsometry analyses have been carried out. Dark and illuminated I/V characteristics and capacitance and conductance vs. frequency behavior of In doped CdTe Schottky barrier diodes based on Cr and Ni substrates indicate that thermal annealing is an effective means of reducing the trap concentrations on these films that can lead to a significant improvement of the quality of sputtered films for solar cell applications.
Book Synopsis Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Quarterly Progress Report No. 1, April 9-July 8, 1979 by :
Download or read book Controlled Cadmium Telluride Thin Films for Solar Cell Applications (emerging Materials Systems for Solar Cell Applications). Quarterly Progress Report No. 1, April 9-July 8, 1979 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparation and properties of cadmium telluride thin films for use in solar cells are studied. CdTe sputter deposition, crystal doping, and carrier typing are discussed. Future experimental plans are described. (WHK).
