Engineering of CH < inf > 3 < /inf > NH < inf > 3 < /inf > PbI < inf > 3 < /inf > Perovskite Crystals by Alloying Large Organic Cations for Enhanced Thermal Stability and Transport Properties

dc.contributor.author Peng, Wei
dc.contributor.author Miao, Xiaohe
dc.contributor.author Adinolfi, Valerio
dc.contributor.author Alarousu, Erkki
dc.contributor.author El Tall, Omar
dc.contributor.author Emwas, Abdul Hamid
dc.contributor.author Zhao, Chao
dc.contributor.author Walters, Grant
dc.contributor.author Liu, Jiakai
dc.contributor.author Ouellette, Olivier
dc.contributor.author Pan, Jun
dc.contributor.author Murali, Banavoth
dc.contributor.author Sargent, Edward H.
dc.contributor.author Mohammed, Omar F.
dc.contributor.author Bakr, Osman M.
dc.date.accessioned 2022-03-27T08:37:05Z
dc.date.available 2022-03-27T08:37:05Z
dc.date.issued 2016-08-26
dc.description.abstract The number of studies on organic–inorganic hybrid perovskites has soared in recent years. However, the majority of hybrid perovskites under investigation are based on a limited number of organic cations of suitable sizes, such as methylammonium and formamidinium. These small cations easily fit into the perovskite's three-dimensional (3D) lead halide framework to produce semiconductors with excellent charge transport properties. Until now, larger cations, such as ethylammonium, have been found to form 2D crystals with lead halide. Here we show for the first time that ethylammonium can in fact be incorporated coordinately with methylammonium in the lattice of a 3D perovskite thanks to a balance of opposite lattice distortion strains. This inclusion results in higher crystal symmetry, improved material stability, and markedly enhanced charge carrier lifetime. This crystal engineering strategy of balancing opposite lattice distortion effects vastly increases the number of potential choices of organic cations for 3D perovskites, opening up new degrees of freedom to tailor their optoelectronic and environmental properties.
dc.identifier.citation Angewandte Chemie - International Edition. v.55(36)
dc.identifier.issn 14337851
dc.identifier.uri 10.1002/anie.201604880
dc.identifier.uri https://onlinelibrary.wiley.com/doi/10.1002/anie.201604880
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/11227
dc.subject crystal engineering
dc.subject organic–inorganic hybrid composites
dc.subject perovskite phases
dc.subject photovoltaics
dc.title Engineering of CH < inf > 3 < /inf > NH < inf > 3 < /inf > PbI < inf > 3 < /inf > Perovskite Crystals by Alloying Large Organic Cations for Enhanced Thermal Stability and Transport Properties
dc.type Journal. Article
dspace.entity.type
Files
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Plain Text
Description: