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Titolo:
Color-variable electroluminescence from poly(p-phenylene vinylene) derivatives
Autore:
Yang, SY; Wang, ZJ; Chen, XH; Yang, XH; Hou, YB; Xu, Z; Wang, LH; Xu, XR;
Indirizzi:
No Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, Peoples R China No Jiaotong Univ Beijing Peoples R China 100044 100044, Peoples R China
Titolo Testata:
DISPLAYS
fascicolo: 2-3, volume: 21, anno: 2000,
pagine: 65 - 68
SICI:
0141-9382(20000801)21:2-3<65:CEFPVD>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIGHT-EMITTING-DIODES; THIN-FILMS; RECOMBINATION; EFFICIENCY;
Keywords:
color-variable electroluminescence; MN-PPV; bilayer devices;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Yang, SY No Jiaotong Univ, Inst Optoelect Technol, Beijing 100044, PeoplesR China No Jiaotong Univ Beijing Peoples R China 100044 Peoples R China
Citazione:
S.Y. Yang et al., "Color-variable electroluminescence from poly(p-phenylene vinylene) derivatives", DISPLAYS, 21(2-3), 2000, pp. 65-68

Abstract

Photoluminescent and electroluminescent properties of poly(2-methoxy-5-nonyloxy-p-phenylene vinylene) (MN-PPV), one of the soluble poly(p-phenylene vinylene) (PPV) derivatives is synthesized through a dehydrochlorination reaction. The EL peak at 576 nm with a low threshold voltage in the monolayer structure is independent of the bias. When the Ale layer is very thin (lessthan or equal to 10 nm) in the bilayer structure of ITO/MN-PPV/Alq(3)/Al, the intrinsic emission only from MN-PPV is obtained. When the Alq(3) layer gets thicker (similar to 30 nm), the intrinsic emission from Alq(3) at 520 nm will increase gradually with the bias, while emission from MN-PPV decreases. Based on the energy levels and field-assisted tunneling at the surface, we consider that this color-variable EL is ascribed to the redistributionof the electric field on the devices and field-assisted charge crossing through the triangular energy barrier at high biases. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 11/07/20 alle ore 16:27:13