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Title: Large-area, triple-junction a-Si alloy production scale-up. Semiannual subcontract report, 17 March 1993--18 September 1993

Abstract

This report describes work to improve the efficiency of large-area, multi-junction amorphous silicon (a-Si) alloy modules. Equipment capable of producing modules up to 0.74 m{sup 2} in area is on line and process development has begun. Preliminary cost analysis/reduction has begun to ensure that these development efforts will result in a commercialization of the large-area technology. The approach was to transfer the high-efficiency multi-junction technology from R&D into the manufacturing environment by using three different substrate sizes. Initial attempts to transfer the multijunction silicon process were made using a 0.1-m{sup 2} substrate (approximately 1 ft{sup 2}). These efforts resulted in a module with a measured aperture area efficiency of 10.32%. Simultaneous with the transfer of the silicon technology, the most complicated aspect of the technology transfer, Solarex began process development techniques on large-area modules by using the 0.37-m{sup 2} substrates. These efforts resulted in modules with a total area efficiency of 7%. Finally, initial runs on substrates 0.74 m{sup 2} were made to debug the large-area equipment in preparation of transferring the knowledge gained in the processing of the smaller substrates.

Authors:
; ;  [1]
  1. Solarex Corp., Newtown, PA (United States). Thin Film Div. [and others
Publication Date:
Research Org.:
National Renewable Energy Lab., Golden, CO (United States); Solarex Corp., Newtown, PA (United States). Thin Film Div.
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10134923
Report Number(s):
NREL/TP-411-6397
ON: DE94006856; BR: WM1020000
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1994
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; SILICON SOLAR CELLS; MANUFACTURING; SUBSTRATES; SIZE; PROGRESS REPORT; SILICON; AMORPHOUS STATE; 140501; PHOTOVOLTAIC CONVERSION

Citation Formats

Oswald, R., O`Dowd, J., and Ashenfelter, W. Large-area, triple-junction a-Si alloy production scale-up. Semiannual subcontract report, 17 March 1993--18 September 1993. United States: N. p., 1994. Web. doi:10.2172/10134923.
Oswald, R., O`Dowd, J., & Ashenfelter, W. Large-area, triple-junction a-Si alloy production scale-up. Semiannual subcontract report, 17 March 1993--18 September 1993. United States. doi:10.2172/10134923.
Oswald, R., O`Dowd, J., and Ashenfelter, W. Tue . "Large-area, triple-junction a-Si alloy production scale-up. Semiannual subcontract report, 17 March 1993--18 September 1993". United States. doi:10.2172/10134923. https://www.osti.gov/servlets/purl/10134923.
@article{osti_10134923,
title = {Large-area, triple-junction a-Si alloy production scale-up. Semiannual subcontract report, 17 March 1993--18 September 1993},
author = {Oswald, R. and O`Dowd, J. and Ashenfelter, W.},
abstractNote = {This report describes work to improve the efficiency of large-area, multi-junction amorphous silicon (a-Si) alloy modules. Equipment capable of producing modules up to 0.74 m{sup 2} in area is on line and process development has begun. Preliminary cost analysis/reduction has begun to ensure that these development efforts will result in a commercialization of the large-area technology. The approach was to transfer the high-efficiency multi-junction technology from R&D into the manufacturing environment by using three different substrate sizes. Initial attempts to transfer the multijunction silicon process were made using a 0.1-m{sup 2} substrate (approximately 1 ft{sup 2}). These efforts resulted in a module with a measured aperture area efficiency of 10.32%. Simultaneous with the transfer of the silicon technology, the most complicated aspect of the technology transfer, Solarex began process development techniques on large-area modules by using the 0.37-m{sup 2} substrates. These efforts resulted in modules with a total area efficiency of 7%. Finally, initial runs on substrates 0.74 m{sup 2} were made to debug the large-area equipment in preparation of transferring the knowledge gained in the processing of the smaller substrates.},
doi = {10.2172/10134923},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {3}
}