A review of the challenges facing kesterite based thin film solar cells

Reference:

Dale, P. J., Hoenes, K., Scragg, J. and Siebentritt, S., 2010. A review of the challenges facing kesterite based thin film solar cells. In: 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009. IEEE, 002080-002085. (Conference Record of the IEEE Photovoltaic Specialists Conference)

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Official URL:

http://dx.doi.org/10.1109/PVSC.2009.5411441

Abstract

The best literature reported kesterite sulfide Cu2ZnSnS 4 and selenide Cu2ZnSnSe4 thin film solar cell device performance and photocurrent spectra have been compared with their analogous chalcopyrite CuInS2 and CuInSe2 devices. Reasons for the kesterites worse performance have been analyzed in terms of (i) phase composition and morphology (ii) opto-electronic properties and (iii) layer interfaces. A new electrodepositon and annealing process is presented for producing Cu2ZnSnS4 absorber layers that gave a highest power conversion efficiency of over 3.2 %. Furthermore photoluminescence spectra of Cu2ZnSnS4 single crystals showing defect related is presented for the first time.

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