Park, JH Lee, TW Kim, YC Park, OO Kim, JK 2024-01-21T05:32:57Z 2024-01-21T05:32:57Z 2021-09-03 2005-02-25 0009-2614 https://pubs.kist.re.kr/handle/201004/136727 We have fabricated a white polymer light-emitting-diode bilayer structure that contains a ternary polymer blend. The first layer of poly(9-vinylcarbazole) acts as an energy donor and electron blocker, and the second layer comprising an immiscible polymer blend of two light-emitting polymers, poly(9,9'-dihexylfluorene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) and poly(2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene), emits light. The emissive white color of the device was observed to be practically independent of the driving voltage (near CIE coordinate; 0.33, 0.33). In addition, it shows greatly enhanced luminous efficiency compared to a ternary blended white light-emitting-diode. (C) 2005 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ELECTROLUMINESCENT DEVICES ENERGY-TRANSFER PHOSPHORESCENT EMISSION DIODES ELECTROPHOSPHORESCENCE IRIDIUM LAYER White polymer light-emitting devices from ternary-polymer blend with concentration gradient Article 10.1016/j.cplett.2004.12.119 1 CHEMICAL PHYSICS LETTERS, v.403, no.4-6, pp.293 - 297 CHEMICAL PHYSICS LETTERS 403 4-6 293 297 scie scopus 000227294400012 2-s2.0-13444253886 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article ELECTROLUMINESCENT DEVICES ENERGY-TRANSFER PHOSPHORESCENT EMISSION DIODES ELECTROPHOSPHORESCENCE IRIDIUM LAYER white polymer blend