Polythiophene-polyoxyethylene copolymer in polyfluorene-based polymer blends for light-emitting devices

被引：18

作者：

Camurlu, P. ^{[2
]}

Giovanella, U. ^{[1
]}

Bolognesi, A. ^{[1
]}

Botta, C. ^{[1
]}

Cik, G. ^{[3
]}

Vegh, Z. ^{[4
]}

机构：

[1] CNR, ISMAC, I-20133 Milan, Italy

[2] Akdeniz Univ, Dept Chem, TR-07058 Antalya, Turkey

[3] Slovak Tech Univ Bratislava, Dept Environm Engn, Bratislava 81237, Slovakia

[4] Slovak Tech Univ Bratislava, Dept Organ Chem, Bratislava 81237, Slovakia

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 1-2期

关键词：

Polymer blends; Forster resonant energy transfer; Electroluminescence; Polythiophene; Polyfluorene; WHITE-LIGHT; ENERGY-TRANSFER; EMISSION;

D O I：

10.1016/j.synthmet.2008.07.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polyfluorene (PFO) films doped with different amount of a polythiophene-co-polyoxyethylene (Pt) polymer were studied with the aim to obtain white emission. The Fosrster resonant energy transfer (FRET) is the basic mechanism that takes place in the photoluminescence of these blends. The non-conducting poly(oxyethylene) behaves as a inert spacer leading to a larger donor-acceptor chromophores separation and then a better control of FRET efficiency. As result, the light-emitting device with the architecture Al/Ca/P1:PFO/PEDOT:PSS/ITO was found to be more efficient than either the devices using pure PFO or P1. Near white CIE coordinates of (0.26, 0.33) with a maximum luminance of 2500cd/m(2) were found for 2 wt.% device. A maximum external quantum efficiency of 1% was obtained, hence, suggesting that the enhancement of the electronic and optoelectronic properties could be achieved by incorporating P1 into the PFO. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：41 / 44

页数：4

共 14 条

[1] Energy transfer dynamics in polyfluorene-based polymer blends [J].