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Device Structure and Photovoltaic Performance of CsPbI3 and Cs1-xNaxPbI3 (0 ≤ x ≤ 0.1) C-PSCs
(A) Scheme and cross-sectional SEM image of CsPbI3 C-PSCs.
(B–E) Statistical box chart of (B) Voc, (C) Jsc, (D) FF, and (E) PCE of CsPbI3 and Na-doped CsPbI3 C-PSCs.
