Issue 40, 2016

Ordered macroporous CH3NH3PbI3 perovskite semitransparent film for high-performance solar cells

Abstract

In situ fabrication of an ordered macroporous perovskite semitransparent film on a FTO glass was successfully achieved via sacrificial polystyrene (PS) microsphere templates. The average visible transmittance of active layer from 20% to 45% can be tuned by simply changing the PS diameters and precursor concentrations. The ordered macroporous perovskite films show enhanced crystallinity and reduced recombination defects, superior to the island perovskite film. Transient photovoltage, transient photocurrent and electrochemical impedance spectra measurements proved the advanced charge transport and reduced recombination by importing macroporous structures. Herein, the optimized 400 nm MP CH3NH3PbI3 perovskite film with a high AL AVT of 36.5% achieved an impressive PCE of 11.7% compared to the island-like perovskite film (champion PCE = 5.6%), presenting a great potential for building integrated photovoltaic applications.

Graphical abstract: Ordered macroporous CH3NH3PbI3 perovskite semitransparent film for high-performance solar cells

Supplementary files

Article information

Article type
Paper
Submitted
22 Jul 2016
Accepted
31 Aug 2016
First published
01 Sep 2016

J. Mater. Chem. A, 2016,4, 15662-15669

Ordered macroporous CH3NH3PbI3 perovskite semitransparent film for high-performance solar cells

B. Chen, H. Rao, H. Chen, W. Li, D. Kuang and C. Su, J. Mater. Chem. A, 2016, 4, 15662 DOI: 10.1039/C6TA06232F

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