Toxicologic Assessment of the Army's Zinc Cadmium Sulfide Dispersion Tests
Toxicologic Assessment of the Army's Zinc Cadmium Sulfide Dispersion Tests

Author: National Research Council

Publisher: National Academies Press

Published: 1997-05-30

Total Pages: 386

ISBN-13: 0309174783

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During the 1950s and 1960s, the U.S. Army conducted atmospheric dispersion tests in many American cities using fluorescent particles of zinc cadmium sulfide (ZnCdS) to develop and verify meteorological models to estimate the dispersal of aerosols. Upon learning of the tests, many citizens and some public health officials in the affected cities raised concerns about the health consequences of the tests. This book assesses the public health effects of the Army's tests, including the toxicity of ZnCdS, the toxicity of surrogate cadmium compounds, the environmental fate of ZnCdS, the extent of public exposures from the dispersion tests, and the risks of such exposures.

Cadmium sulfide/copper sulfide heterojunction cell research
Cadmium sulfide/copper sulfide heterojunction cell research

Author: Westinghouse Electric Corporation. Research & Development Center

Publisher:

Published: 1978

Total Pages: 28

ISBN-13:

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An approach for the research effort required to meet the program objective is described, leading to an outline of nine tasks comprising the planned program. Results of effort applied to tasks during the first quarter effort are described. Highlights include fabrication and evaluation of cells in Mo foil substrates, a new chemical etch method which may allow easy, rapid determination of CdS grain diameters in films, and preparation and preliminary evaluation of cell structures on single crystal CdS substrates. Several problems will require special effort in the future: poor adhesion of CdS film to Zn-plated Cu foil substrates and a high incidence of film defects attributed to particle spatter from the CdS evaporation source.

Effect of Load Voltage on Thin-film Cuprous Sulfide - Cadmium Sulfide Solar Cells Thermally Cycled in a Simulated Space Environment
Effect of Load Voltage on Thin-film Cuprous Sulfide - Cadmium Sulfide Solar Cells Thermally Cycled in a Simulated Space Environment

Author: John J. Smithrick

Publisher:

Published: 1971

Total Pages: 20

ISBN-13:

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Thin-film Cu2S-CdS solar cells, loaded at various fixed values of load resistance, were thermally cycled for 1429 cycles in a simulated space environment. Cell performance was measured under controlled conditions in air before and after thermal cycling. These data were used to determine the effect of load voltage on cell performance. The performance of the cells was relatively independent of load voltage up to about 0.39 volt. This appears to be a threshold voltage, beyond which there was a significant loss in cell performance. Fortunately, this threshold voltage appears to be sufficiently higher than the maximum power voltage of 0.33 volt so that it can be avoided in most applications.