TY - JOUR
T1 - Development of flexible and curved infrared detectors with HgTe colloidal quantum dots
AU - Hao, Qun
AU - Tang, Xin
AU - Cheng, Yang
AU - Hu, Yao
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/8
Y1 - 2020/8
N2 - Flexible and curved infrared focal plane arrays (FPAs) are attracting great interest with increasing demand for sensitive, low-cost and scalable cameras that can achieve wide field of view, low aberrations, and simple imaging optics. The widespread use of such flexible detectors, however, is still limited by the brittle nature of the dominant infrared epitaxial semiconductors like HgCdTe, InSb, and InGaAs, together with their high cost for both growth and processing. In contrast, colloidal quantum dots (CQDs) have inspired various optoelectronic devices benefitting from their solution-processability, mechanical flexibility and wide spectral tunability over important atmospheric windows from short-wave infrared (SWIR, 1.5 – 2.5 µm), mid-wave infrared (MWIR, 3 – 5 µm) to long-wave infrared (LWIR, 8–14 µm). In this review, we summarize the recent progress of CQDs-based infrared optoelectronics regarding device configuration, photodetection properties, device flexibilities and some potential routes leading to infrared imaging FPA.
AB - Flexible and curved infrared focal plane arrays (FPAs) are attracting great interest with increasing demand for sensitive, low-cost and scalable cameras that can achieve wide field of view, low aberrations, and simple imaging optics. The widespread use of such flexible detectors, however, is still limited by the brittle nature of the dominant infrared epitaxial semiconductors like HgCdTe, InSb, and InGaAs, together with their high cost for both growth and processing. In contrast, colloidal quantum dots (CQDs) have inspired various optoelectronic devices benefitting from their solution-processability, mechanical flexibility and wide spectral tunability over important atmospheric windows from short-wave infrared (SWIR, 1.5 – 2.5 µm), mid-wave infrared (MWIR, 3 – 5 µm) to long-wave infrared (LWIR, 8–14 µm). In this review, we summarize the recent progress of CQDs-based infrared optoelectronics regarding device configuration, photodetection properties, device flexibilities and some potential routes leading to infrared imaging FPA.
KW - Colloidal quantum dots
KW - Curved detectors
KW - Electronic eyes
KW - Flexibility
KW - Multispectral imaging
KW - Photodetectors
KW - SWIR/MWIR
UR - http://www.scopus.com/inward/record.url?scp=85084924643&partnerID=8YFLogxK
U2 - 10.1016/j.infrared.2020.103344
DO - 10.1016/j.infrared.2020.103344
M3 - Review article
AN - SCOPUS:85084924643
SN - 1350-4495
VL - 108
JO - Infrared Physics and Technology
JF - Infrared Physics and Technology
M1 - 103344
ER -