標題: Enhanced phosphorescence and electroluminescence in triplet emitters by doping gold into cadmium selenide/zinc sulfide nanoparticles
作者: Liu, HW
Laskar, IR
Huang, CP
Cheng, JA
Cheng, SS
Luo, LY
Wang, HR
Chen, TM
應用化學系
Department of Applied Chemistry
關鍵字: II-VI semiconductors;doping;quantum dots;electroluminescence
公開日期: 1-十月-2005
摘要: Gold-cadmium selenide/zinc sulfide (Au-CdSe/ZnS) nanocomposites (NCs) were synthesized and characterized by transmission electron microscopy (TEM), energy dispersive X-ray (EDX) analysis, ultraviolet-visible (UV-visible) absorption and photoluminescence (PL) emission spectroscopy. The PL intensity in the Au-CdSe/ZnS NCs system was found to be much greater than that of CdSe/ZnS nanoparticles (NPs) alone, because of the surface-enhanced Raman scattering of An NPs. Adding Au-CdSe/ZnS NCs to the cyclometalated iridium(Ill) complex (Ir-complex) greatly enhanced the PL intensity of a triplet emitter. Three double-layered electroluminescence (EL) devices were fabricated where the emitting zone contains the definite mixture of Ir-complex and the NCs [molar concentration of Ir-complex/NCs = 1:0 (Blank, D-1), 1: 1 (D-2) and 1:3 (D-3)] and the device D-2 exhibited optimal EL performances. (c) 2005 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.tsf.2005.04.094
http://hdl.handle.net/11536/13190
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2005.04.094
期刊: THIN SOLID FILMS
Volume: 489
Issue: 1-2
起始頁: 296
結束頁: 302
顯示於類別:期刊論文


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