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Perovskite Monocrystals: Ultrathin Perovskite Monocrystals Boost the Solar Cell Performance (Adv. Energy Mater. 34/2020)
Author(s) -
Kong Wenchi,
Wang Shiwei,
Li Feng,
Zhao Chen,
Xing Jun,
Zou Yuting,
Yu Zhi,
Lin ChunHo,
Shan Yuwei,
Lai Yu Hang,
Dong Qingfeng,
Wu Tom,
Yu Weili,
Guo Chunlei
Publication year - 2020
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.202070144
Subject(s) - materials science , perovskite (structure) , energy conversion efficiency , crystallite , crystallization , grain boundary , nanometre , grain size , optoelectronics , limiting , perovskite solar cell , nanotechnology , chemical engineering , composite material , metallurgy , microstructure , mechanical engineering , engineering
In article number 2000453, Weili Yu, Chunlei Guo and co‐workers demonstrate that by combining the space‐limiting technique and the anti‐temperature crystallization method, millimeter sized MAPbI 3 perovskite monocrystals with thickness from tens of nanometers to micrometers can be fabricated. Solar cells based on the 300 nm thick perovskite monocrystal are prepared, which show 3% enhancement in power conversion efficiency (PCE) compared to their polycrystalline counterparts. This work provides a scalable way to synthesize high quality perovskite crystals with less grains and grain boundaries, is believed a key step to develop perovskite single crystal solar cells with high performance.