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Bulk-heterojunction Based on Blending of Red and Blue Luminescent Silicon Nanocrystals and P3HT Polymer

Published online by Cambridge University Press:  31 January 2011

Vladimir Švrček  and
Michio Kondo
Vladimir Švrček
Affiliation:
vladimir.svrcek@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Michio Kondo
Affiliation:
mhkondo@tkg.att.ne.jp, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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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.

Keywords

photovoltaiclaser ablationnanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1153: Symposium A – Amorphous and Polycrystalline Thin Film Silicon Science and Technology–2009 , 2009 , 1153-A15-02
Copyright
Copyright © Materials Research Society 2009

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