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.
|Name||Conference Record of the IEEE Photovoltaic Specialists Conference|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Conference||2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, June 7, 2009 - June 12, 2009|
|Country/Territory||USA United States|
|Period||17/02/10 → …|