English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2313673      Online Users : 31
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41281

Title: Harnessing Fluorescence versus Phosphorescence Branching Ratio in (Phenyl)n-Bridged (n = 0–5) Bimetallic Au(I) Complexes
Authors: Pi-Tai Chou
Yuh-Chia Chang
Kuo-Chun Tang
Hsiao-An Pan
Shih-Hung Liu
Igor O. Koshevoy
Antti J. Karttunen
Wen-Yi Hung
Ming-Hung Cheng
Date: 2013
Issue Date: 2017-02-13T08:51:26Z
Publisher: The Journal of Physical Chemistry C
Abstract: Abstract: We have designed and synthesized a series of Au(I) complexes bearing either an alkynyl–(phenylene)n–diphosphine (A-0–A-3) or a (phenylene)n–diphosphine (B-1–B-5) bridge, among which the effective distance between Au(I) and the center of the emitting ππ* chromophore can be fine-tuned via the insertion of various numbers of phenylene spacers. We then demonstrated for the first time in a systematic manner the decrease of rate constant for S1 → T1 intersystem crossing (ISC) kisc as the increase of the effective distance. The results also unambiguously showed that the phosphorescence could be harvested via higher S0 → Sn (n > 1) electronic excitation, followed by fast Sn → Tm ISC and then the population at T1 state, bypassing the relatively slow S1 → T1 ISC. The results unify a recent report on higher excited-state relaxation dynamics for the late transition metal complexes (J. Am. Chem. Soc.2012, 134, 7715–7724). The dual, far separated fluorescence and phosphorescence of the titled complexes make feasible the white light generation in a single molecule unit, as successfully demonstrated using complex B-3 as a dopant to fabricate organic light emitting diodes.
Relation: 117(19)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41281
Appears in Collections:[光電科學研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML81View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback