標題: Accumulated plasmonic effects of gold nanoparticle-decorated PEGylated graphene oxides in organic light-emitting diodes
作者: Chuang, Ming-Kai
Lin, Chun-Hao
Chen, Fang-Chung
交大名義發表
光電工程學系
National Chiao Tung University
Department of Photonics
關鍵字: OLED;Polymer;Plasmonic;Nanoparticle;Amphiphilicity;Graphene oxide
公開日期: 1-Sep-2020
摘要: Amphiphilic Au nanoparticle-decorated PEGylated graphene oxides (Au@PEG-GO) are used to construct multiple plasmonic nanostructures for enhancing the performance of organic light-emitting diodes (OLEDs). Because of the long side-chains of the Au@PEG-GO nanocomposites, the nanoparticles can be well dispersed both in organic and aqueous solvents, allowing them to be incorporated readily into the buffer layers, such as poly(3,4-ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS) and the organic photoactive layers within OLEDs during the soultion processes. Herein, the Au@PEG-GO nanocomposites are blended into either the PEDOT:PSS or the emissive layer of OLEDs to trigger surface plasmonic effects, thereby improving the device efficiencies. The current efficiencies are improved by ca. 20% for both cases. More importantly, the simultaneous addition of the Au@PEG-GO nanocomposites into both layers leads to even pronounced plasmonic effects. Under the optimized condition, the current efficiency is enhanced by up to 38%, suggesting the plasmonic fields from both layers attributed to the device enhancement. We anticipate that the accumulated plasmonic effects originating from the multiple plasmonic nanostructures will open up new avenues for improving the performance of various solution-processed optoelectronic devices involving organic dyes.
URI: http://dx.doi.org/10.1016/j.dyepig.2020.108412
http://hdl.handle.net/11536/154922
ISSN: 0143-7208
DOI: 10.1016/j.dyepig.2020.108412
期刊: DYES AND PIGMENTS
Volume: 180
起始頁: 0
結束頁: 0
Appears in Collections:Articles