Abstract:We summarize some recent new results probing inter-and intra-chain coupling in aggregated P3HT in isolated nanoparticles and nanofibers. Time-resolved photoluminescence studies show interesting correlations between amplitude and decay constant for different decay components that are tied to both polymer regio-regularity and nanoparticle processing conditions. In the frequency domain, we observe distinct signatures of both H-and J-aggregate type exciton coupling, manifested as different vibronic progressions wi… Show more
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