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Bulk-heterojunction based on blending of red and blue luminescent silicon nanocrystals and P3HT polymer.

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Abstract

Blending of red and blue photoluminescent silicon nanocrystals (Si-ncs) with poly(3-hexylthiophene (P3HT) conjugated polymer is demonstrated. The room temperature luminescent and ambient conditions stable Si-ncs prepared by electrochemical etching and laser ablation in water are used for the blend fabrication. Furthermore photo-electric properties in parallel configuration on platinum interdugitated contact are shown. Both types of Si-ncs results the bulk-heterojunction formation and photoconductivity is observed when the blends are irradiated AM1.5. The increase in photoconductivity is rather the same and ratio between photo- and dark-conductivity is about 1.7. The nanocrystal oxidation during laser ablation fabrication process in water hinders the transport properties of the blend.

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Authors and Affiliations

  1. Novel Si Material Team, Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Umezono 1-1-1, 305-8568, Tsukuba, Japan

    Vladimir Švrček & Michio Kondo

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  1. Vladimir Švrček
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  2. Michio Kondo
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Correspondence to Vladimir Švrček.

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Švrček, V., Kondo, M. Bulk-heterojunction based on blending of red and blue luminescent silicon nanocrystals and P3HT polymer.. MRS Online Proceedings Library 1153, 1502 (2008). https://doi.org/10.1557/PROC-1153-A15-02

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  • DOI: https://doi.org/10.1557/PROC-1153-A15-02

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