Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm

Chong Wu Wang; Qi Jie Wang

doi:10.1038/s41377-024-01504-3

Your Location：

Home >

Browse articles >

Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm

News & Views

- Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm
- Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm
- LSA 2024年13卷第8期页码：1445-1447
- Affiliations：
  
  1.Centre for OptoElectronics and Biophotonics, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
  2.Centre for Disruptive Photonic Technologies, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
- Author bio：
  
  Qi Jie Wang (qjwang@ntu.edu.sg)
- Funds：
- DOI：10.1038/s41377-024-01504-3
  中图分类号：
- 网络出版日期：2024-07-08，
  
  纸质出版日期：2024-08-31
- Accepted：
Scan QR Code
Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm[J]. LSA, 2024,13(8):1445-1447.

Wang, C. W. & Wang, Q. J. Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm. Light: Science & Applications, 13, 1445-1447 (2024).
Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm[J]. LSA, 2024,13(8):1445-1447. DOI： 10.1038/s41377-024-01504-3.

Wang, C. W. & Wang, Q. J. Extending the detection limit: innovations in infrared quantum dot photodetectors reaching up to 18 μm. Light: Science & Applications, 13, 1445-1447 (2024). DOI： 10.1038/s41377-024-01504-3.

摘要

Abstract

A regrowth method was used to synthesize large-sized colloidal quantum dots (CQDs). With the assistance of doping engineering

the synthesized CQD detectors demonstrate exceptional long-wavelength infrared detection performance

reaching up to 18 μm

significantly extending the spectral response limit for CQD-based infrared detectors. These detectors also achieve a reasonably high detectivity of 6.6 × 10

Jones.

关键词

Keywords

references

Kwan, D. et al. Recent trends in 8-14μm type-II superlattice infrared detectors. Infrared Phys. Technol. 116 , 103756 (2021)..

Rogalski, A. et al. InAsSb-based infrared photodetectors: thirty years later on. Sensors 20 , 7047 (2020)..

Eich, D. et al. Progress of MCT detector technology at AIM toward s smaller pitch and lower dark current. J. Electron. Mater. 46 , 5448–5457 (2017)..

Rogalski, A. Infrared detectors: an overview. Infrared Phys. Technol. 43 , 187–210 (2002)..

Rossetti, R., Nakahara, S. & Brus, L. E. Quantum size effects in the redox potentials, resonance Raman spectra, and electronic spectra of CdS crystallites in aqueous solution. J. Chem. Phys. 79 , 1086–1088 (1983)..

Zhou, W. J. et al. Solution-processed upconversion photodetectors based on quantum dots. Nat. Electron. 3 , 251–258 (2020)..

Konstantatos, G. et al. Ultrasensitive solution-cast quantum dot photodetectors. Nature 442 , 180–183 (2006)..

Chen, M. L. et al. Mid-infrared intraband photodetector via high carrier mobility HgSe colloidal quantum dots. ACS Nano 16 , 11027–11035 (2022)..

Kagan, C. R. et al. Building devices from colloidal quantum dots. Science 353 , aac5523 (2016)..

Armstrong, G. The year dot. Nat. Chem. 15 , 1659–1659 (2023)..

Lu, H. P. et al. Infrared quantum dots: progress, challenges, and opportunities. ACS Nano 13 , 939–953 (2019)..

Ding, N. et al. A novel approach for designing efficient broadband photodetectors expanding from deep ultraviolet to near infrared. Light Sci. Appl. 11 , 91 (2022)..

Zhang, H. Z., Peterson, J. C. & Guyot-Sionnest, P. Intraband transition of HgTe nanocrystals for long-wave infrared detection at 12 μm. ACS Nano 17 , 7530–7538 (2023)..

Xue, X. M., Hao, Q. & Chen, M. L. Very long wave infrared quantum dot photodetector up to 18 μm. Light Sci. Appl. 13 , 89 (2024)..

Xue, X. M. et al. High-operating-temperature mid-infrared photodetectors via quantum dot gradient homojunction. Light Sci. Appl. 12 , 2 (2023)..

Palaferri, D. et al. Room-temperature nine-µm-wavelength photodetectors and GHz-frequency heterodyne receivers. Nature 556 , 85–88 (2018)..

Liang, L. L. et al. Incoherent broadband mid-infrared detection with lanthanide nanotransducers. Nat. Photon. 16 , 712–717 (2022)..

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

暂无数据