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Optically Tunable Magneto‐Capacitance Phenomenon in Organic Semiconducting Materials Developed by Electrical Polarization of Intermolecular Charge‐Transfer States
Author(s) -
He Lei,
Li Mingxing,
Urbas Augustine,
Hu Bin
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201305965
Subject(s) - materials science , capacitance , intermolecular force , polarization (electrochemistry) , singlet state , acceptor , optoelectronics , engineering physics , chemical physics , condensed matter physics , physics , atomic physics , chemistry , quantum mechanics , molecule , electrode , excited state
Optically tunable magneto‐capacitance can be developed by using photo‐generated intermolecular charge‐transfer (CT) states in an organic donor:acceptor (TPD:BBOT) composite through magnetic field‐dependent singlet/triplet ratio and singlet/triplet ratio‐dependent electrical polarization. The magnitude and line shape of the magneto‐capacitance can be readily tuned by changing the density of intermolecular CT states.