Lee, KJ Yu, JW Kim, JK Kim, YC Park, JH Park, OO 2024-01-21T06:04:13Z 2024-01-21T06:04:13Z 2021-09-02 2004-12 1542-1406 https://pubs.kist.re.kr/handle/201004/137019 We fabricated bilayer polymer light-emitting diodes (PLED) with Poly(9,9'-dihexylyflourene-2,7-divinylene-m-phenylenevinylene-stat-p-phenylenevinylene) (PTHFMPPV) and poly(N-vinylcarbarzole) (PVK) as an emitting layer and a hole transport layer respectively. The thickness of each, layer was varied, white lite total thickness was controlled to be constant as 110nm. We observed electroluminescence, photoluminescence and current-voltage-luminescence characteristics of these bilayer devices and a single layer device with PDHFMPPV polymer as a light emitting layer for comparison. The quantum efficiencies of the bilayer devices were enhanced up to two about orders magnitude compared with the single-layer device. English TAYLOR & FRANCIS LTD ENERGY-TRANSFER ELECTROLUMINESCENCE LUMINESCENCE COPOLYMER BLENDS Characteristics in bilayer organic light-emitting diodes with variation of the film thickness Article 10.1080/15421400490506081 1 MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.424, pp.147 - 152 MOLECULAR CRYSTALS AND LIQUID CRYSTALS 424 147 152 scie scopus 000226415900019 2-s2.0-24644510736 Chemistry, Multidisciplinary Crystallography Materials Science, Multidisciplinary Chemistry Crystallography Materials Science Article; Proceedings Paper ENERGY-TRANSFER ELECTROLUMINESCENCE LUMINESCENCE COPOLYMER BLENDS bilayer light-emitting diodes quantum efficiency