Enhanced Photoluminescence of Sulfur-Bridged Organic

*S Supporting Information ABSTRACT: 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). Highly emissive organic molecules continue to receive agreat deal of attention for their use in organic light emitting devices (OLEDs).1 Solution processing of organic molecules under ambient conditions may enable low cost, high throughput manufacturing of devices utilizing these materials on a wide range of substrates.2 For over two decade