Blends of poly[2-(2 ' ,5 ' -bis(2 ' -ethyl-hexyloxy)phenyl)-1,4-phenylenevinylene] and poly(3-hexylthiophene) as base materials for broad band light emission devices
作者： M. Valadares , I. Silvestre , H. D. R. Calado , B. R. A. Neves , P. S. S. Guimarães
DOI: 10.1063/1.2973038
关键词:
摘要: Photoluminescence (PL) and electroluminescence (EL) emission from blended films composed by poly[2-(2′,5′-bis(2′-ethyl-hexyloxy)phenyl)-1,4-phenylenevinylene] (BEHP-PPV) poly(3- hexylthiophene) (P3HT) conjugated polymers with different relative concentrations are investigated. The main changes observed on the PL spectra of temperature excitation power associated to an increase efficiency P3HT constituent. EL spectrum a light device (LED) fabricated BEHP-PPV:P3HT blend presents similar broad as in measurement but shifted higher wavelengths. LEDs show significantly than made pure constituents. apparent color LED shifts purer red applied voltage is increased. This tuning capacity was interpreted due change effective gap caused redistribution injected carriers ...
harvard.edu
scitation.org
aip.org
sci-hub.se 参考文章(52)
Synthesis and Color Tuning of Poly(p-phenylenevinylene) Containing Terphenyl Units for Light Emitting Diodes Bulletin of The Korean Chemical Society. ,vol. 26, pp. 1807- 1818 ,(2005) , 10.5012/BKCS.2005.26.11.1807
Arthur Dogariu, Rahul Gupta, Alan J Heeger, Hailiang Wang, None, Time-resolved Förster energy transfer in polymer blends Synthetic Metals. ,vol. 100, pp. 95- 100 ,(1999) , 10.1016/S0379-6779(98)00168-4
Hong-Cheu Lin, Chien-Min Tsai, Jiann-T'suen Lin, K.R. Justin Thomas, Novel red and white PLED devices consisting of PVK blended with blue-emitting fluorene derivatives and carbazole dopants Synthetic Metals. ,vol. 156, pp. 1155- 1160 ,(2006) , 10.1016/J.SYNTHMET.2006.05.015
Patrícia SO Patrício, Hallen DR Calado, Flávio AC de Oliveira, Ariete Righi, Bernardo RA Neves, Glaura G Silva, Luiz A Cury, None, Correlation between thermal, optical and morphological properties of heterogeneous blends of poly(3-hexylthiophene) and thermoplastic polyurethane. Journal of Physics: Condensed Matter. ,vol. 18, pp. 7529- 7542 ,(2006) , 10.1088/0953-8984/18/32/002
D. Mikael Johansson, Mathias Theander, Gordana Srdanov, Gang Yu, Olle Inganäs, Mats R. Andersson, Influence of Polymerization Temperature on Molecular Weight, Photoluminescence, and Electroluminescence for a Phenyl-Substituted Poly(p-phenylenevinylene) Macromolecules. ,vol. 34, pp. 3716- 3719 ,(2001) , 10.1021/MA001921X
A. Camposeo, E. Mele, L. Persano, D. Pisignano, R. Cingolani, Role of doping concentration on the competition between amplified spontaneous emission and nonradiative energy transfer in blends of conjugated polymers Physical Review B. ,vol. 73, pp. 165201- ,(2006) , 10.1103/PHYSREVB.73.165201
Do-Hoon Hwang, Moo-Jin Park, Changhee Lee, White LEDs using conjugated polymer blends Synthetic Metals. ,vol. 152, pp. 205- 208 ,(2005) , 10.1016/J.SYNTHMET.2005.07.215
Carl M. Lampert, Chromogenic smart materials Materials Today. ,vol. 7, pp. 28- 35 ,(2004) , 10.1016/S1369-7021(04)00123-3
Michael D. McGehee, Rahul Gupta, Siegfried Veenstra, E. Kirk Miller, María A. Díaz-García, Alan J. Heeger, Amplified spontaneous emission from photopumped films of a conjugated polymer Physical Review B. ,vol. 58, pp. 7035- 7039 ,(1998) , 10.1103/PHYSREVB.58.7035
R. Gupta, M. Stevenson, A. J. Heeger, Low threshold distributed feedback lasers fabricated from blends of conjugated polymers: Reduced losses through Förster transfer Journal of Applied Physics. ,vol. 92, pp. 4874- 4877 ,(2002) , 10.1063/1.1505668