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Issue 20, 2013
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Synthesis and optical characterisation of triphenylamine-based hole extractor materials for CdSe quantum dots

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Abstract

We report the synthesis and optical characterisation of different triphenylamine-based hole capture materials able to anchor to CdSe quantum dots (QDs). Cyclic voltammetry studies indicate that these materials exhibit reversible electrochemical behaviour. Photoluminescence and transient absorption spectroscopy techniques are used to study interfacial charge transfer properties of the triphenylamine functionalized CdSe QDs. Specifically, we show that the functionalized QDs based on the most easily oxidised triphenylamine display efficient hole-extraction and long-lived charge separation. The present findings should help identify new strategies to control charge transfer QD-based optoelectronic devices.

Graphical abstract: Synthesis and optical characterisation of triphenylamine-based hole extractor materials for CdSe quantum dots

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Article information


Submitted
05 Mar 2013
Accepted
09 Apr 2013
First published
17 Apr 2013

Phys. Chem. Chem. Phys., 2013,15, 7679-7684
Article type
Paper

Synthesis and optical characterisation of triphenylamine-based hole extractor materials for CdSe quantum dots

M. Planells, L. X. Reynolds, U. Bansode, S. Chhatre, S. Ogale, N. Robertson and S. A. Haque, Phys. Chem. Chem. Phys., 2013, 15, 7679
DOI: 10.1039/C3CP50980J

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