Nature Electronics, volume 5, issue 7, pages 443-451

A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry

Jing Liu 1
Peilin Liu 1
Dengyang Chen 2
Tailong Shi 1
Xixi Qu 2
Long Chen 1
Tong Wu 1
Jiangping Ke 1
Kao Xiong 1
Mingyu Li 1
Haisheng Song 1, 3
Wei Wei 2
Junkai Cao 2
Jianbing Zhang 1, 3
Liang Gao 1, 3
Jiang Tang 1, 3
Publication typeJournal Article
Publication date2022-06-16
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor34.3
ISSN25201131
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Instrumentation
Abstract
Imagers that operate in the near-infrared region (wavelengths of 0.7–1.4 µm) are of use in applications such as material sorting, machine vision and autonomous driving. However, such imagers typically use the flip-chip method to connect infrared photodiodes with silicon-based readout integrated circuits, as the need for high-temperature processing and single-crystalline substrates prevents direct integration. This increases processing complexity and cost. Here we report high-resolution imagers that monolithically integrate near-infrared colloidal quantum dot photodiodes with complementary metal–oxide–semiconductor readout integrated circuits. The colloidal quantum dot photodetector is designed with a structure compatible with complementary metal–oxide–semiconductors and exhibits a spectral range of 400–1,300 nm, room-temperature detectivity of 2.1 × 1012 Jones, −3 dB bandwidth of 140 kHz and linear dynamic range of over 100 dB. With this approach, we create a large (640 × 512 pixels) imager that exhibits a spatial resolution of 40 line pairs per millimetre at a modulation transfer function of 50%, and we show that it can be used for vein imaging and matter identification. Colloidal quantum dot photodetectors can be integrated with complementary metal–oxide–semiconductor readout integrated circuits, resulting in low-cost, high-resolution infrared imagers.

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Liu J. et al. A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry // Nature Electronics. 2022. Vol. 5. No. 7. pp. 443-451.
GOST all authors (up to 50) Copy
Liu J., Liu P., Chen D., Shi T., Qu X., Chen L., Wu T., Ke J., Xiong K., Li M., Song H., Wei W., Cao J., Zhang J., Gao L., Tang J. A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry // Nature Electronics. 2022. Vol. 5. No. 7. pp. 443-451.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/s41928-022-00779-x
UR - https://doi.org/10.1038/s41928-022-00779-x
TI - A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry
T2 - Nature Electronics
AU - Liu, Jing
AU - Liu, Peilin
AU - Chen, Dengyang
AU - Shi, Tailong
AU - Qu, Xixi
AU - Chen, Long
AU - Wu, Tong
AU - Ke, Jiangping
AU - Xiong, Kao
AU - Li, Mingyu
AU - Song, Haisheng
AU - Wei, Wei
AU - Cao, Junkai
AU - Zhang, Jianbing
AU - Gao, Liang
AU - Tang, Jiang
PY - 2022
DA - 2022/06/16 00:00:00
PB - Springer Nature
SP - 443-451
IS - 7
VL - 5
SN - 2520-1131
ER -
BibTex |
Cite this
BibTex Copy
@article{2022_Liu,
author = {Jing Liu and Peilin Liu and Dengyang Chen and Tailong Shi and Xixi Qu and Long Chen and Tong Wu and Jiangping Ke and Kao Xiong and Mingyu Li and Haisheng Song and Wei Wei and Junkai Cao and Jianbing Zhang and Liang Gao and Jiang Tang},
title = {A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry},
journal = {Nature Electronics},
year = {2022},
volume = {5},
publisher = {Springer Nature},
month = {jun},
url = {https://doi.org/10.1038/s41928-022-00779-x},
number = {7},
pages = {443--451},
doi = {10.1038/s41928-022-00779-x}
}
MLA
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MLA Copy
Liu, Jing, et al. “A near-infrared colloidal quantum dot imager with monolithically integrated readout circuitry.” Nature Electronics, vol. 5, no. 7, Jun. 2022, pp. 443-451. https://doi.org/10.1038/s41928-022-00779-x.
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