Highly reproducible, efficient hysteresis-less CH3NH3PbI3-xClx planar hybrid solar cells without requiring heat-treatment

Nanoscale
Jin Hyuck Heo, Sang Hyuk Im

Abstract

CH3NH3PbI3-xClx(MAPbI3-xClx) mixed halide perovskite powder with uniform composition was synthesized via simple solution chemistry, which demonstrates highly reproducible, efficient planar type MAPbI3-xClx mixed halide perovskite solar cells. Pure MAPbI3-xClx mixed halide perovskite powder was synthesized by reacting a 3 : 1 molar ratio of MAI : PbCl2 powder mixture in isopropanol (IPA) solution for 30 min at 60 °C with subsequent repeated centrifugation and washing in IPA. IPA functions as both the reaction medium for the formation of MAPbI3-xClx mixed halide and a selective remover of unreacted MAI and MACl byproducts. Accordingly, we could deposit a pinhole-free dense MAPbI3-xClx mixed halide perovskite film on a TiO2/FTO substrate through a simple one step spin-coating of pure MAPbI3-xClx mixed halide perovskite powder in DMF solution with HI additive, without further long heat-treatment processes. The deposited MAPbI3-xClx mixed halide perovskite film revealed uniform composition throughout the entire area, and the ratio of Cl to I + Cl and I + Cl to Pb was constant at ∼0.03 and ∼1/3, respectively. On the other hand, the conventional MAPbI3-xClx mixed halide perovskite film prepared by the long heat-treatment process had n...Continue Reading

References

Nov 20, 2001·Nature·M Grätzel
Jan 11, 2005·Nature Materials·Steven A McDonaldEdward H Sargent
Apr 16, 2009·Journal of the American Chemical Society·Akihiro KojimaTsutomu Miyasaka
Aug 17, 2012·Nature·Michael GraetzelEdward H Sargent
Sep 1, 2014·Nature Nanotechnology·Jeong-Hyeok ImNam-Gyu Park

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Citations

Apr 28, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hao HuLukas Schmidt-Mende
Jun 21, 2016·Journal of the American Chemical Society·Jacob B HoffmanPrashant V Kamat
Jan 6, 2017·Physical Chemistry Chemical Physics : PCCP·C M Handley, C L Freeman
Sep 4, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jin Mo KimSung Won Hwang
Jun 18, 2021·Nano-micro Letters·Minghao WangWei Huang
Oct 29, 2019·ACS Applied Materials & Interfaces·Jin Hyuck HeoSang Hyuk Im
Mar 17, 2020·ACS Applied Materials & Interfaces·Gwang Su ShinNam-Gyu Park

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