Molecular rotors with designed polar rotating groups possess mechanics-controllable wide-range rotational speed  

作　　者：Jian Shao Wenpeng Zhu Xiaoyue Zhang Yue Zheng 

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies,Sun Yat-sen University,510275 Guangzhou,China [2]Physical Mechanics and Biophysics Research Center,School of Physics,Sun Yat-sen University,510275 Guangzhou,China

出　　处：《npj Computational Materials》2020年第1期131-139,共9页计算材料学（英文）

基　　金：This study was supported by the National Natural Science Foundation of China(NSFC)(Grants 11972383,11672339 and 81827802);the Guangzhou Science and Technology key Project(Grant 201707020002).

摘　　要：Molecular rotors with controllable functions are promising for molecular machines and electronic devices.Especially,fast rotation in molecular rotor enables switchable molecular conformations and charge transport states for electronic applications.However,the key to molecular rotor-based electronic devices comes down to a trade-off between fast rotational speed and thermal stability.Fast rotation in molecular rotor requires a small energy barrier height,which disables its controllability under thermal excitation at room temperature.

关 键 词：Molecular rotation ROTATING 

分 类 号：TN201[电子电信—物理电子学]