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Lead sulphide nanocrystal photodetector technologies

Curry, RJ and Saran, R (2016) Lead sulphide nanocrystal photodetector technologies Nature Photonics, 10. pp. 81-92.

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Light detection is the underlying principle of many optoelectronic systems. For decades, semiconductors including silicon carbide, silicon, indium gallium arsenide and germanium have dominated the photodetector industry. They can show excellent photosensitivity but are limited by one or more aspects, such as high production cost, high-temperature processing, flexible substrate incompatibility, limited spectral range or a requirement for cryogenic cooling for efficient operation. Recently lead sulphide (PbS) nanocrystals have emerged as one of the most promising new materials for photodetector fabrication. They offer several advantages including low-cost manufacturing, solution processability, size-tunable spectral sensitivity and flexible substrate compatibility, and they have achieved figures of merit outperforming conventional photodetectors. We review the underlying concepts, breakthroughs and remaining challenges in photodetector technologies based on PbS nanocrystals.

Item Type: Article
Subjects : Nano-electronics
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
Curry, RJ
Saran, R
Date : 29 January 2016
DOI : 10.1038/nphoton.2015.280
Additional Information : © 2016 Macmillan Publishers Limited. All rights reserved
Depositing User : Symplectic Elements
Date Deposited : 09 Mar 2016 14:23
Last Modified : 01 Aug 2016 01:08

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