Department of Chemistry, University of British Columbia , Vancouver, BC, V6T 1Z1, Canada.
J Am Chem Soc. 2013 Jun 5;135(22):8109-12. doi: 10.1021/ja401383q. Epub 2013 May 22.
A general approach to enhancing the emission quantum yield of several widely studied organic chromophores is presented. The luminescence properties of a series of symmetrical sulfur-bridged chromophores are reported as a function of the oxidation state of the bridging sulfur atom. The photoluminescence quantum yield is significantly enhanced by successively oxidizing the sulfur bridge from sulfide (S), to sulfoxide (SO), to sulfone (SO2).
本文提出了一种提高几种广泛研究的有机发色团发射量子产率的通用方法。报道了一系列对称硫桥发色团的发光性质随桥接硫原子氧化态的变化。通过依次将硫桥从硫化物（S）氧化为亚砜（SO），再氧化为砜（SO2），可显著提高光致发光量子产率。
