強耦合有機微共振腔之設計與研究;Design and research of the strongly coupled organic semiconductor microcavities

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题名:	強耦合有機微共振腔之設計與研究;Design and research of the strongly coupled organic semiconductor microcavities
作者:	何彥璋;He,Yan-zhang
贡献者:	光電科學與工程學系
关键词:	極化子;微共振腔;強耦合;有機
日期:	2015-11-25
上传时间:	2016-01-05 17:47:18 (UTC+8)
出版者:	國立中央大學
摘要:	本論文主要研究由金屬-介電質反射鏡所組成的微共振腔內光子與激子強耦合的現象。激子材料為具有J-aggregate排列形式的有機花青染料DEDOC分子，並以Layer-by-layer製備法製作成高吸收薄膜後做為主動層置入微共振腔。我們設計三組不同腔長的微共振腔，分別是120 nm、145 nm、210 nm，量測變角度反射頻譜後對照理論模擬的極化子能態分布。接下來量測變角度光致發光頻譜，不僅三組微共振腔均在室溫下量測到極化子中較低能態(lower polariton branch)的出光，另外在腔長210 nm的微共振腔量測到來自極化子中較高能態(upper polariton branch)的出光，成功經由實驗驗證極化子能態的產生，證實了光子與激子強耦合的機制。 ;We study the photon and exciton strongly coupled phenomenon in the metal-dielectric mirror microcavity. The material of exciton is DEDOC cyanine dyes having a J-aggregates form, which manufactured the high absorption thin films by layer-by-layer assembly. As a active layer, the DEDOC thin films are placed in the microcavity. We design the three different cavity length, respectively, 120 nm, 145 nm, 210 nm. From the angle-resolved reflection spectra, we demonstrated the generation of polariton states, well matching with the simulation. Next, from the angle-resolved photoluminescence spectrum, we observed the PL from lower polariton branch in three types of microcavities, and also observed the PL from upper polariton branch for the cavity length of 210 nm. We verify the produce of the polariton energy state through experimental successfully and confirm the mechanism of photon and exciton strongly coupled.
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