聚對苯乙烯衍生物高效率強耦合有機發光二極體之研究;Highly efficient strongly coupled organic light-emitting diode based on poly(p-phenylene vinylene) derivative

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/84979

Title:	聚對苯乙烯衍生物高效率強耦合有機發光二極體之研究;Highly efficient strongly coupled organic light-emitting diode based on poly(p-phenylene vinylene) derivative
Authors:	黃柏翔;Huang, Po-Hsiang
Contributors:	光電科學與工程學系
Keywords:	偏極子;強耦合;高分子;Polariton;Strong coupling;Polymer
Date:	2021-01-28
Issue Date:	2021-03-18 17:05:54 (UTC+8)
Publisher:	國立中央大學
Abstract:	本論文旨在研究intra-cavity pumping架構下的強耦合有機發光二極體，其中激子庫材料為高吸收J-aggregate染料分子DEDOC與腔體產生偏極子模態，並應用PPV衍生物Super Yellow作為光子源OLED的發光層來激發模態產生偏極子發光。與常規的自激發架構相比，光子源不參與偏極子模態之形成，直接激發偏極子模態，可降低自激發偏極子散射所產生的損耗，提升元件發光效率。　　實驗結果表明在此架構下，元件發光效率主要由光子源和偏極子模態的重疊程度及光子源自身的效率所影響，EL光譜的飄移則來自光子源從模態邊緣的出光，而拉比分裂的特性則主要受激子庫與腔體的耦合決定。最終偏極子元件達到1.27%的EQE以及160 meV的拉比分裂能量，並且觀察了上下支的EL出光。;In this thesis, the strongly coupled organic light-emitting diode based on intra-cavity pumping architecture was studied. An absorbing J-aggregate dye material DEDOC was used to interaction with cavity to generate polariton modes, and a PPV derivative Super Yellow was used as the emissive layer of the photon source for radiative pumping of emission from the polariton modes. In contrast to the conventional self-pumping architecture, the photon source did not join the generation of the polariton modes, but directly pumped the polariton modes, which could reduce the loss of polariton scattering and improve the luminescence efficiency. Experimental results show that under this architecture, the luminescence efficiency of the device was mainly determined by the overlap between the photon source and the polariton modes and the efficiency of the photon source itself. The shift of the EL spectrum was caused by the light emitted by the photon source from the edge of the polariton modes. The characteristics of the Rabi splitting was mainly determined by the coupling between the exciton reservoir and the cavity. The polariton device achieved an EQE of 1.27% and a Rabi splitting energy of 160 meV, and the light emission of the upper and lower branches both could be observed.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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