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We synthesized an oligomer of O-PPV [poly(2,5-diphenylene-1,3,4-oxadiazolyle-4,4'-vinylene)] with 4 repeat units. As oxadiazole in the PPV main chain is an acceptor, intermolecular interaction of O-PPV will increase and even produce a charge-transfer complex (excimer) in solid-state. So we may obtain the information of electronic structures on conjugated polymers by detecting the PL characteristics...
The synthesis of a new PPV derivative (poly[(2,5-diphenylene-1,3,4-oxadiazole)-4,4'vinylene] (O-PPV) oligomer) and the investigation of the absorption and photoluminescence (PL) properties of O-PPV in the forms of solution and solid-state film are reported. Our results showed that the PL in the case of solid-state originates from an excimer or interchain charge transfer complex. To understand the...
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