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Title: Solvent annealing of perovskite-induced crystal growth for photovoltaic-device efficiency enhancement

Solvent-annealing is found to be an effective method to increase the grain size and carrier diffusion lengths of trihalide perovskite materials. Thus, the carrier diffusion length of MAPbI 3 is increased to over 1 μm. The efficiency remains above 14.5% when the MAPbI 3 thickness changes from 250 nm to 1 μm, with the highest efficiency reaching 15.6%.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
Publication Date:
Grant/Contract Number:
EE0006709
Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 26; Journal Issue: 37; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Research Org:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1237997