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n-CuInSe/sub 2//polysulfide photoelectrochemical solar cells

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.93206· OSTI ID:5489519

We report that n-type single crystals of n-CuInSe/sub 2/ in aqueous polysulfide solution exhibit high quantum efficiencies of 0.8--0.9 in the wavelength region between 600--1150 nm when used as photoanodes in photoelectrochemical cells. Photocurrents of 28 mA/cm/sup 2/ were measured on a ''winter'' day in Rehovot (71 mW/cm/sup 2/) which corresponds to 40 mA/cm/sup 2/ under AM1 (Air Mass 1) conditions (100-mW/cm/sup 2/ sunlight). Stability tests of n-CuInSe/sub 2/ photoanodes (20 000-C/cm/sup 2/ photocharge passage) at short circuit current densities of 40 mA/cm/sup 2/ have shown no deterioration whatsoever of the measured photocurrents.

Research Organization:
Department of Structural Chemistry, The Weizmann Institute of Science, Rehovot, 76100, Israel
OSTI ID:
5489519
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 40:8; ISSN APPLA
Country of Publication:
United States
Language:
English