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Exciton‐Stimulated Molecular Transformation in Organic Light‐Emitting Diodes
Author(s) -
Chang YiLu,
Rao YingLi,
Gong Shaolong,
Ingram Grayson L.,
Wang Suning,
Lu ZhengHong
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.201402535
Subject(s) - oled , materials science , exciton , optoelectronics , diode , electrochromism , transformation (genetics) , nanotechnology , electrode , biochemistry , chemistry , physics , layer (electronics) , quantum mechanics , gene
An exciton‐stimulated molecular transformation in an organic light‐emitting diode (OLED) on a time scale of a few seconds under electrical bias is shown to reach nearly 100% under standard operating conditions, leading to color switching. It is reversible in both a thin film and an OLED when sufficient thermal energy is supplied. Such an exciton‐stimulated molecular transformation suggests a new process which may be exploited for applications such as electrochromic and memory devices.