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Efficient solar energy conversion with CuInS2
The high absorptivity associated with a direct energy gap in the optimum range for solar-energy conversion makes CuInS 2 a particularly promising material for efficient solar-energy conversion 1 . Achieved solar-to-electrical conversion efficiencies have been limited to ∼6% (refs 2–8). We report her...
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Published in: | Nature (London) 1986-06, Vol.321 (6071), p.687-688 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The high absorptivity associated with a direct energy gap in the optimum range for solar-energy conversion makes CuInS
2
a particularly promising material for efficient solar-energy conversion
1
. Achieved solar-to-electrical conversion efficiencies have been limited to ∼6% (refs 2–8). We report here a new heterogeneous poly crystalline
n
-CuInS
2
based semiconductor which has yielded conversion efficiencies of 9.7% in an electrochemical cell. The high photoactivity is also evident in a Schottky barrier solar cell configuration. The origin of the improved efficiency is attributed to impurity scavenging by In spheres resulting from a modified vapour/liquid/solid (VLS) growth process
9–11
and the influence of the acidic iodine iodide electrolyte on the cell performances. |
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ISSN: | 0028-0836 1476-4687 |
DOI: | 10.1038/321687a0 |