Study on the exciton dissociation at the NPB-Alq3 interface | Zendy

You Yin-Tao | Zendy; Wang Ai-Fen | Zendy; Xiaoyu Sun | Zendy; Wenbin Li | Zendy; Zheng Xiao-Yan | Zendy

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Study on the exciton dissociation at the NPB-Alq3 interface

Author(s) -

You Yin-Tao,

Wang Ai-Fen,

Xiaoyu Sun,

Wenbin Li,

Zheng Xiao-Yan

Publication year - 2010

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.59.6527

Subject(s) - exciton , dissociation (chemistry) , materials science , bilayer , electron , irradiation , optoelectronics , molecular physics , chemical physics , chemistry , condensed matter physics , physics , quantum mechanics , biochemistry , membrane , nuclear physics

Exciton dissociation process and its mechanism at the NPB-Alq3 interface are studied by means of transient photovoltage techniques. For bilayer structured samples made from NPB and Alq3, the transient photovoltage upon 355 nm pulsed laser irradiation was measured. By analysis of the transient photovoltage of samples with different structures or with interface exciton blocking layer that climinates the effect of exciton dissociation at the external interface, it is concluded that the mechanism of exciton dissociation at the NPB-Alq3interface results in holes injected into NPB and electrons injected into Alq3.

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