Effects of Na2S treatment and post-annealing on Sn-rich Cu2ZnSnS4-based thin film solar cells

In this study, chemical etching by Na2S and annealing under nitrogen atmosphere were combined to remove the secondary phases, which precipitated in the CZTS films produced by sulfurizing the metal-alloy precursors. Both treatments indicate positive outcome for removing SnS2 impurity crystals precipi...

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Veröffentlicht in:	Japanese Journal of Applied Physics 2020-02, Vol.59 (SC), p.1
Hauptverfasser:	Momose, Noritaka, Htay, Myo Than, Mikoshiba, Naoki, Hashimoto, Yoshio, Ito, Kentaro
Format:	Artikel
Sprache:	eng
Schlagworte:	Annealing Chemical etching Circuits Copper zinc tin sulfide Etching Open circuit voltage Organic chemistry Photovoltaic cells Photovoltaic conversion Short circuit currents Sodium sulfide Solar cells Spectra Spectral sensitivity Thin films Tin disulfide
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