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Tailoring the electronic properties of colloidal quantum dots in metal-semiconductor nanocomposites for high performance photodetectors

Pelayo Garcia de Arquer, F., Lasanta, Tania, Bernechea, Maria and Konstantatos, Gerasimos 2015. Tailoring the electronic properties of colloidal quantum dots in metal-semiconductor nanocomposites for high performance photodetectors. Small 11 (22) , pp. 2636-2641. 10.1002/smll.201403359

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Abstract

Metallic nanoparticles tailor the electronic properties of PbS colloidal quantum dots in a post-synthetic, all solution-processable approach. The Fermi level of the resulting nanocomposites can be tuned from p- to n-type due to remote charge transfer and electron trap state passivation. This concurrently reduces dark current, improves time response, and increases sensitivity in PbS photoconductors, yielding an over-two-fold increase in detectivity.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TP Chemical technology
Publisher: Wiley-VCH
ISSN: 1613-6810
Last Modified: 12 Jun 2019 03:04
URI: https://orca.cardiff.ac.uk/id/eprint/93715

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