Photoinduced electron transferwhich leads to the charge separation is an essential feature in theconstruction of optoelectronic devices. Electron transfer (ET) rates of severaldonor-bridge-acceptor (DBA) dyads with different acceptors and donors have beenstudied previously. Yet there is no previous literature about how side chainsattached to these dyads affect the ET rates. Such studies will help identifyright side chain that needs to be attached for higher ET rates which in turnlead to faster charge separation and potentially improve the efficiency of ODs.In this poster, we present a systematic study of how the side chains in DBAdyads affect the ET rates. For this we have synthesized series of DBA compoundsbased on quaternarythiophene as donor, naphthalenediimide (NDI) as acceptor andtriazole as bridge with alkyl, perfluoroalkyl, branched and polar side chainsattached to the NDI moiety.

Effect of side chains on the electron transfer rates in Donor-Bridge-Acceptor dyads

240th National Meeting (2010)

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