Mercury chalcogenide colloidal quantum dots for infrared photodetection : from synthesis to device applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

9 Scopus Citations
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Author(s)

  • Yuanyuan Tian
  • Hongqiang Luo
  • Mengyu Chen
  • Cheng Li
  • Stephen V. Kershaw
  • Rong Zhang

Detail(s)

Original languageEnglish
Pages (from-to)6476-6504
Journal / PublicationNanoscale
Volume15
Issue number14
Online published9 Mar 2023
Publication statusPublished - 14 Apr 2023

Abstract

Commercial infrared (IR) photodetectors based on epitaxial growth inorganic semiconductors, e.g. InGaAs and HgCdTe, suffer from high fabrication cost, poor compatibility with silicon integrated circuits, rigid substrates and bulky cooling systems, which leaves a large development window for the emerging solution-processable semiconductor-based photo-sensing devices. Among the solution-processable semiconductors, mercury (Hg) chalcogenide colloidal quantum dots (QDs) exhibit unique ultra-broad and tuneable photo-responses in the short-wave infrared to far-wave infrared range, and have demonstrated photo-sensing abilities comparable to the commercial products, especially with advances in high operation temperature. Here, we provide a focused review on photodetectors employing Hg chalcogenide colloidal QDs, with a comprehensive summary of the essential progress in the areas of synthesis methods of QDs, property control, device engineering, focus plane array integration, etc. Besides imaging demonstrations, a series of Hg chalcogenide QD photodetector based flexible, integrated, multi-functional applications are also summarized. This review shows prospects for the next-generation low-cost highly-sensitive and compact IR photodetectors based on solution-processable Hg chalcogenide colloidal QDs.

Research Area(s)

  • CDTE NANOCRYSTALS, HGTE NANOCRYSTALS, TEMPERATURE SYNTHESIS, OPTICAL-PROPERTIES, SURFACE LIGANDS, PHOTOLUMINESCENCE, NANOPLATELETS, CDSE, HGS, TELECOMMUNICATIONS

Citation Format(s)

Mercury chalcogenide colloidal quantum dots for infrared photodetection: from synthesis to device applications. / Tian, Yuanyuan; Luo, Hongqiang; Chen, Mengyu et al.
In: Nanoscale, Vol. 15, No. 14, 14.04.2023, p. 6476-6504.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review