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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Adv+Sci+(Weinh) 2018 ; 5 (3): ä Nephropedia Template TP
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The Dawn of Lead?Free Perovskite Solar Cell: Highly Stable Double Perovskite Cs2AgBiBr6 Film #MMPMID29593974
Wu C; Zhang Q; Liu Y; Luo W; Guo X; Huang Z; Ting H; Sun W; Zhong X; Wei S; Wang S; Chen Z; Xiao L
Adv Sci (Weinh) 2018[Mar]; 5 (3): ä PMID29593974show ga
Recently, lead?free double perovskites have emerged as a promising environmentally friendly photovoltaic material for their intrinsic thermodynamic stability, appropriate bandgaps, small carrier effective masses, and low exciton binding energies. However, currently no solar cell based on these double perovskites has been reported, due to the challenge in film processing. Herein, a first lead?free double perovskite planar heterojunction solar cell with a high quality Cs2AgBiBr6 film, fabricated by low?pressure assisted solution processing under ambient conditions, is reported. The device presents a best power conversion efficiency of 1.44%. The preliminary efficiency and the high stability under ambient condition without encapsulation, together with the high film quality with simple processing, demonstrate promise for lead?free perovskite solar cells.