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Amorphous Mn 3 O 4 Nanocages with High‐Efficiency Charge Transfer for Enhancing Electro‐Optic Properties of Liquid Crystals
Author(s) -
Ma Guanshui,
Jia Binbin,
Zhao Dongyu,
Yang Zhao,
Yu Jian,
Liu Juzhe,
Guo Lin
Publication year - 2019
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201805475
Subject(s) - nanocages , materials science , amorphous solid , doping , metastability , crystal (programming language) , liquid crystal , optoelectronics , analytical chemistry (journal) , crystallography , chemistry , organic chemistry , computer science , programming language , catalysis
Abstract Improving electro‐optic properties is essential for fabricating high‐quality liquid crystal displays. Herein, by doping amorphous Mn 3 O 4 octahedral nanocages (a‐Mn 3 O 4 ONCs) into a nematic liquid crystal (NLC) matrix E7, outstanding electro‐optic properties of the blend are successfully obtained. At a doping concentration of 0.03 wt%, the maximum decreases of threshold voltage ( V th ) and saturation voltage ( V sat ) are 34% and 31%, respectively, and the increase of contrast ( C on ) is 160%. This remarkable electro‐optic activity can be attributed to high‐efficiency charge transfer within the a‐Mn 3 O 4 ONCs NLC system, caused by metastable electronic states of a‐Mn 3 O 4 ONCs. To the best of our knowledge, such remarkable decreased electro‐optic activity is observed for the first time from doping amorphous semiconductors, which could provide a new pathway to develop excellent energy‐saving amorphous materials and improve their potential applications in electro‐optical devices.