Photomodulation spectrum of phenyl-substituted ladder-type poly(para-phenylene) under hydrostatic pressure
學年 103
學期 2
出版（發表）日期 2015-06-30
作品名稱 Photomodulation spectrum of phenyl-substituted ladder-type poly(para-phenylene) under hydrostatic pressure
作品名稱（其他語言）
著者 Hsu, Che-hung; Yang, Shu-chun
單位
出版者
著錄名稱、卷期、頁數 Journal of Polymer Research 22(6), pages105
摘要 The pressure-dependence photomodulation spectrum of a semiconducting conjugated polymer, phenyl-substituted ladder-type poly(para-phenylene) (Ph-LPPP) with trace-concentrations of metallic impurities, was studied. The so called photo-induced absorption gave the information about the triplet-triplet (TT) transitions and bleaching (PB) of the singlet state in this material. Planarization, therefore, stronger interchain interaction, under pressure was observed. The photo-modulation spectra coupled with Raman scattering and photoluminescence spectra of Ph-LPPP revealed the influence of electronic structure due to pressure on singlet and triplet excitons. As a result, the localized character of triplet state could be changed. The lifetimes of the triplet excitions and the photobleaching were also observed. It was found that the triplet state was less stable than the singlet state.
關鍵字 Photomodulation spectrum;Semiconducting conjugated polymer;Hydrostatic pressure;Triplet-triplet transition
語言 en_US
ISSN 1572-8935
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106366 )