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Pinhole-Free Perovskite Films by Methylamine Iodide Solution-Assisted Repair for High-Efficiency Photovoltaics Under Ambient Conditions

Pinhole-Free Perovskite Films by Methylamine Iodide Solution-Assisted Repair for High-Efficiency Photovoltaics Under Ambient Conditions

Liang Wang, Fengjing Liu, Tianjun Liu, Jiawei Wang, Xiaoyong Cai, Gongtang Wang, Tingli Ma, Chao Jiang

ACS Appl Mater Interfaces. 2016 Nov 16;8(45):30920-30925.

PMID: 27786451

Abstract:

In this study, we demonstrate a simple strategy for obtaining pinhole-free, homogeneous, well-crystallized perovskite films under ambient conditions. The preparation of perovskite film with high light-harvesting efficiency and long carrier lifetime is verified. By applying this film in TiO2-based perovskite solar cells (PVSCs), we achieved a high power-conversion efficiency (PCE) of 13.07%, which is doubled with respect to that of the PVSC not subjected to the same improvement procedure (6.54%). High open-circuit photovoltage, photocurrent density, and fill factor are the main contributions to the high PCE that results from low trap density and high recombination resistance of the resultant perovskite films. This work paves a new means for fabricating high-performance perovskite films and PVSC devices in an ambient atmosphere.

Chemicals Related in the Paper:

Catalog Number	Product Name	CAS Number	Price
AP151073700	4-Chlorophenylzinc iodide solution	151073-70-0	Price
AP282727202	2-Methoxyphenylzinc iodide solution	282727-20-2	Price
AP300766534	4-Methylphenylzinc iodide solution	300766-53-4	Price
AP46000106	1-Naphthylzinc iodide solution	46000-10-6	Price

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