Open AccessMutual enhancement of cathodoluminescence and organic electroluminescence in SiO2/C9-PPV heterogeneous junction
Author(s) -
Ming Liu,
Yi Li-Xin,
Feng Teng,
Zheng Xu,
Xurong Xu
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1013
Subject(s) - cathodoluminescence , electroluminescence , luminescence , materials science , optoelectronics , excitation , electron , electric field , optics , nanotechnology , physics , layer (electronics) , quantum mechanics
We have prepared a device of C9-PPV sandwiched between two SiO2 layers and obtained the blue light in addition to the yellow-green emission under ac electric field excitation. By studying the optical characteristics of the device, we found that the emission was induced by direct bombardment of the accelerated electrons from SiO2. This emission is termed by us as cathodo luminescence-like emission. By using unsymmetrical structure, we realized mutual enhancement of cathodo luminescence-like and Organic electroluminescence.