INVESTIGATION OF THIN FILM CADMIUM SULFIDE SOLAR CELLS.

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Abstract:

The purpose of this program is to continue the research and development on large area, thin film flexible, light weight cadmium sulfide solar cells. Higher efficiency stable cells with a high power to weight ratio are goals of this program. Higher efficiency cells appear probable when the barrier is formed chemically. Cells have been fabricated for exposure to gamma radiation at NRL. New contacting techniques are being investigated for application on the one square foot and one-half square foot arrays. A rear wall thin film CdS photovoltaic cell can be produced. A considerable effort would be needed to perfect this into an efficient and usable item. Further work has been abandoned. The principal vacuum evaporation parameters of substrate temperature and surface perfection have been studied for CdS depositions. Thin films of CdS were prepared on Mo, Ta, Ti, Invar 36, quartz, Si and CaF2. Substrate temperatures ranged from 200 to 650 C. Ti shows excellent promise for reducing the total cell weight. Annealing, doping and chemical reactions were studied to increase output efficiencies of production cells. Author

Author(s):
Schaefer, J. C. ; Humrick, R. J. ; Belt, R. F.
Author Organization(s):
HARSHAW CHEMICAL CO CLEVELAND OHIO
Descriptive Note:
Quarterly technical progress rept. no. 1, 25 Nov 63-25 Feb 64,
Annotation:
Development of large area, thin film flexible, light weight cadmium sulfide solar cells; deposition of CdS films on Mo, Ti, Ta, Cu, quartz, Invar 36, and CaF2.
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
AF33 615 1248
Task Number(s):
81730132
 Subject Terms
Communities of Interest:
Advanced Electronics
Descriptor(s):
(*SOLAR CELLS, FILMS), (*CADMIUM COMPOUNDS, SULFIDES), VAPOR PLATING, VACUUM APPARATUS, QUARTZ, TANTALUM, SILICON, FLUORIDES, COPPER COMPOUNDS, CALCIUM COMPOUNDS, TITANIUM, NICKEL ALLOYS, IRON ALLOYS, ELECTROPLATING, PH FACTOR, COPPER, SULFUR, ZIRCONIUM, MOLYBDENUM, TUNGSTEN, HEAT TREATMENT, OPTICAL PROPERTIES, ELECTROPLATING, SOLUTIONS(MIXTURES)
Keyword(s):
COPPER(I) SULFIDE
Report Date:
1964 Mar 06