Application of bromide-iodide lead perovskite thin film as a copper-free back contact layer for CdTe solar cells

[Display omitted] •CH3NH3Pb(I1-xBrx)3 perovskite thin films are successfully applied as copper-free back contact layers for CdTe solar cells.•The facile deposition process of back contact layers.•The uniformity of CdTe solar cell is improved after applying CH3NH3Pb(I1-xBrx)3 back contact layers.•CdT...

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