Impact of Sn(S,Se) Secondary Phases in Cu2ZnSn(S,Se)4 Solar Cells: a Chemical Route for Their Selective Removal and Absorber Surface Passivation
The control and removal of secondary phases is one of the major challenges for the
development of Cu2ZnSn (S, Se) 4 (CZTSSe)-based solar cells. Although etching processes
have been developed for Cu (S, Se), Zn (S, Se), and CuSn (S, Se) secondary phases, so far
very little attention has been given to the role of Sn (S, Se). In this paper, we report a
chemical route using a yellow (NH4) 2S solution to effectively remove Sn (S, Se). We found
that Sn (S, Se) can form on the surface either because of stoichiometric deviation or by …
development of Cu2ZnSn (S, Se) 4 (CZTSSe)-based solar cells. Although etching processes
have been developed for Cu (S, Se), Zn (S, Se), and CuSn (S, Se) secondary phases, so far
very little attention has been given to the role of Sn (S, Se). In this paper, we report a
chemical route using a yellow (NH4) 2S solution to effectively remove Sn (S, Se). We found
that Sn (S, Se) can form on the surface either because of stoichiometric deviation or by …
[引用][C] Impact of Sn (S, Se) Secondary Phases in Cu2ZnSn (S, Se) 4 Solar Cells: a Chemical Route for Their Selective Removal and Absorber Surface Passivation
X Haibing, S Yudania, LM Simón, ER Moisés… - 2014
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