Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 114, Issue 14, Pages 6854-6859Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp100401e
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Photovoltaic cells with the structure of nanocrystalline TiO2/Sb2S3/(LiSCN)CuSGN were prepared following the extremely thin absorber cell concept and characterized under different gas atmospheres The cells showed an important light soaking effect in which the cell performance typically evolved from an initial lower efficiency into a higher one in contact with ambient air. Oxygen was shown to be involved with the effect. The best cell efficiency was 3 7% at similar to 1 sun, with a photocurrent J(sc) normalized at 1 sun of 11 6 mA/cm(2), an open-circuit voltage V-oc of 0.56 V, and a filling factor. If, of 0 58. The cells are shown to run more than 300 days, keeping the efficiency higher than 1 5% at 1 sun The need for taking into account the influence of oxygen and humidity during photovoltaic measurement is emphasized for further investigation of this type of cell.
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