Issue 72, 2023

Colloidal Ag2Se intraband quantum dots

Abstract

With the emergence of the Internet of Things, wearable electronics, and machine vision, the exponentially growing demands for miniaturization, energy efficiency, and cost-effectiveness have imposed critical requirements on the size, weight, power consumption and cost (SWaP-C) of infrared detectors. To meet this demand, new sensor technologies that can reduce the fabrication cost associated with semiconductor epitaxy and remove the stringent requirement for cryogenic cooling are under active investigation. In the technologically important spectral region of mid-wavelength infrared, intraband colloidal quantum dots are currently at the forefront of this endeavor, with wafer-scale monolithic integration and Auger suppression being the key material capabilities to minimize the sensor's SWaP-C. In this Feature Article, we provide a focused review on the development of sensors based on Ag2Se intraband colloidal quantum dots, a heavy metal-free colloidal nanomaterial that has merits for wide-scale adoption in consumer and industrial sectors.

Graphical abstract: Colloidal Ag2Se intraband quantum dots

Article information

Article type
Feature Article
Submitted
05 May 2023
Accepted
14 Aug 2023
First published
14 Aug 2023

Chem. Commun., 2023,59, 10722-10736

Author version available

Colloidal Ag2Se intraband quantum dots

M. M. Al Mahfuz, J. Park, R. Islam and D. Ko, Chem. Commun., 2023, 59, 10722 DOI: 10.1039/D3CC02203J

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