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5250005 
Journal Article 
Static and dynamic photoluminescence (PL) quenching of polymer : quencher systems in solutions 
Wang, J; Wang, D; Miller, EK; Moses, D; Heeger, AJ 
2001 
1 
Synthetic Metals
ISSN: 0379-6779 
ELSEVIER SCIENCE SA 
LAUSANNE 
119 
1-3 
591-592 
English 
WOS:000168741500270 
Quenching of the PL from conjugated polymers in solution by charge transfer to electron accepters was studied by PL measurements while varying the quencher concentration, the ion concentration in buffered aqueous solutions, and the temperature. For the aqueous solutions, the PL quenching was greatly enhanced by static quenching originating from the formation of a weakly bound complex between the anionic conjugated polymer and cationic electron accepters. The estimated Coulomb binding energy was similar to 150 meV. In contrast, for MEH-PPV and PCBM in 1,2-dichlorobenzene, dynamic quenching was identified as the basic mechanism. 
Physics; Materials Science; photoluminescence, Stern-Volmer constant, static quenching, dynamic; quenching, optical absorption, temperature profile 
16th International Conference on Science and Technology of Synthetic Metals (ICSM 2000) 
GASTEIN, AUSTRIA