Issue 36, 2014

One-step, solution-processed formamidinium lead trihalide (FAPbI(3−x)Clx) for mesoscopic perovskite–polymer solar cells

Abstract

Formamidinium (FA) lead triiodide perovskite with chlorine addition (NH2CH[double bond, length as m-dash]NH2PbI(3−x)Clx) is employed as a light harvester in mesoscopic solar cells for the first time. It is demonstrated that a phase-pure FAPbI(3−x)Clx perovskite layer can be synthesized using a one-step solution-process at 140 °C, and the resultant solar cells deliver a maximum power conversion efficiency of 7.51%, which is the most efficient formamidinium-lead-halide perovskite mesoscopic solar cell employing a polymer hole-transporting layer. The effects of the thermal annealing temperature on the quality/morphology of the perovskite layer and the solar cells performance are discussed. The advantages offered by the one-step solution-processing method and the reduced bandgap make FAPbI(3−x)Clx perovskites an attractive choice for future hybrid photovoltaics.

Graphical abstract: One-step, solution-processed formamidinium lead trihalide (FAPbI(3−x)Clx) for mesoscopic perovskite–polymer solar cells

Supplementary files

Article information

Article type
Paper
Submitted
15 May 2014
Accepted
07 Jul 2014
First published
10 Jul 2014

Phys. Chem. Chem. Phys., 2014,16, 19206-19211

Author version available

One-step, solution-processed formamidinium lead trihalide (FAPbI(3−x)Clx) for mesoscopic perovskite–polymer solar cells

S. Lv, S. Pang, Y. Zhou, N. P. Padture, H. Hu, L. Wang, X. Zhou, H. Zhu, L. Zhang, C. Huang and G. Cui, Phys. Chem. Chem. Phys., 2014, 16, 19206 DOI: 10.1039/C4CP02113D

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