Abstract
CdSe nanorods and dilute poly(3-hexylthiophene) (P3HT) dispersed in poly(methyl methacrylate) (PMMA) films are investigated by wide field fluorescence microscopy and by analysis of single-point time transients. The data depict enhanced band-edge luminescence from nanorod/P3HT films, consistent with filling of CdSe surface traps by static charge transfer from P3HT. Band-edge luminescence from the nanorods is also shown to be enhanced by photoactivated (e.g., dynamic) charge transfer from P3HT to surface trap states on the CdSe nanorods. The role played by charge transfer in enhanced CdSe luminescence is further demonstrated by differences observed in the CdSe nanorod blinking behavior in P3HT and PMMA films.
Published Version
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