Molecular Mechanisms of Superelasticity and Ferroelasticity in Organic Semiconductor Crystals
Molecular Mechanisms of Superelasticity and Ferroelasticity in Organic Semiconductor Crystals
复制标题
有机半导体晶体超弹性和铁弹性的分子机制
DOI:
10.1021/acs.chemmater.1c00080
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发表时间:
2021
影响因子:
8.6
通讯作者:
Zhao, Kejie
中科院分区:
文献类型:
--
作者:
Sun, Hong;Park, Sang Kyu;Diao, Ying;Kvam, Eric P.;Zhao, Kejie
Flexible organic crystals enabled by cooperative phase transitions attract enormous interest in solid-state chemistry to produce light, biocompatible, and environmentally benign devices. The recently unveiled super- and ferroelastic organic semiconductor crystals provide a pathway to achieve ultraflexible single-crystal electronics. However, the mechanistic understanding of cooperative transitions in organic crystals is rather at the nascent stage, and most of such studies rely on the trial-and-error approach in molecular design. Compared to the well-studied phase transition in metallic alloys, the key challenge in understanding the organic phase transitions is the elusive crystallography involving intricate molecular dynamics and defects. Here, we leverage the phase transformation theory, genetic algorithm refined molecular modeling, and experimental validation to study the versatile cooperative transitions in bis(triisopropylsilylethynyl)-pentacene semiconductor crystals. The molecular rotation governed thermoelasticity, interconvertible super- and ferroelastic transitions, and molecular twinning are systematically studied by integrating the lattice crystallography and molecular motions. We illustrate the molecular defects of disclination dipoles and molecular stacking faults associated with the molecular twinning process. The fundamental understanding underpins the molecular mechanism of cooperative transitions in a variety of organic solids to promote a new avenue of environmentally responsive organic devices.
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影响因子:
15
作者:
Ž. Skoko;S. Zamir;P. Naumov;J. Bernstein
通讯作者:
Ž. Skoko;S. Zamir;P. Naumov;J. Bernstein
影响因子:
--
作者:
Toshiyuki Sasaki;Shunichi Sakamoto;Yuichi Takasaki;S. Takamizawa
通讯作者:
Toshiyuki Sasaki;Shunichi Sakamoto;Yuichi Takasaki;S. Takamizawa
影响因子:
3.8
作者:
Toshiyuki Sasaki;Shunichi Sakamoto;S. Takamizawa
通讯作者:
S. Takamizawa
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
J. Ende;B. Ensing;H. Cuppen
通讯作者:
H. Cuppen
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
Jichen Li
通讯作者:
Jichen Li