Direct Conversion of CH3NH3PbI3 from Electrodeposited PbO for Highly Efficient Planar Perovskite Solar Cells.

Abstract:

:Organic-inorganic hybrid perovskite materials have recently been identified as a promising light absorber for solar cells. In the efficient solar cells, the perovskite active layer has generally been fabricated by either vapor deposition or two-step sequential deposition process. Herein, electrochemically deposited PbO film is in situ converted into CH3NH3PbI3 through solid-state reaction with adjacent CH3NH3I layer, exhibiting a large-scale flat and uniform thin film with fully substrate coverage. The resultant planar heterojunction photovoltaic device yields a best power conversion efficiency of 14.59% and an average power conversion efficiency of 13.12 ± 1.08% under standard AM 1.5 conditions. This technique affords a facile and environment-friendly method for the fabrication of the perovskite based solar cells with high reproducibility, paving the way for the practical application.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Huang JH,Jiang KJ,Cui XP,Zhang QQ,Gao M,Su MJ,Yang LM,Song Y

doi

10.1038/srep15889

subject

Has Abstract

pub_date

2015-10-29 00:00:00

pages

15889

issn

2045-2322

pii

srep15889

journal_volume

5

pub_type

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