Premium
High‐Performance Planar‐Heterojunction Solar Cells Based on Ternary Halide Large‐Band‐Gap Perovskites
Author(s) -
Liang PoWei,
Chueh ChuChen,
Xin XuKai,
Zuo Fan,
Williams Spencer T.,
Liao ChienYi,
Jen Alex K.Y.
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201400960
Subject(s) - materials science , heterojunction , crystallinity , perovskite (structure) , ternary operation , planar , band gap , optoelectronics , energy conversion efficiency , homogeneity (statistics) , halide , charge carrier , chemical engineering , inorganic chemistry , composite material , statistics , computer graphics (images) , mathematics , chemistry , computer science , engineering , programming language
High‐performance planar‐heterojunction (PHJ) solar cells based on large band‐gap (1.70–1.83 eV) perovskites are demonstrated. By incorporating Cl − into the MAPb(I 1‐Y Br Y ) 3 , the crystallinity and homogeneity of the solution‐processed perovskite thin films are much improved, which results in an increased charge carrier diffusion length from ≈160 nm to ≈700–800 nm. This enhancement leads to a high power conversion efficiency (PCE) of 10% in the low‐temperature solution‐processed PHJ devices.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom