Chemistry: A novel solar cell

Abstract

Semiconductor-liquid junctions offer a possible alternative to conventional solid state photovoltaic solar energy conversion devices. Unfortunately, few of the semiconductor-liquid solar cell systems explored to date simultaneously meet the necessary criteria of excellent stability and high efficiency; thus, the search for novel electrode materials is proceeding with fervour. In the last issue of Nature, Menezes, Lewerenz, and Bachmann (Nature 305, 615; 1983) reported studies of a new semiconductor-liquid junction solar cell that demonstrates excellent stability in an atmospheric environment, and simultaneously displays solar-to-electrical energy conversion efficiencies of 9.5 per cent.

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