Advanced Optical Materials, volume 10, issue 2, pages 2101611

Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics

Publication typeJournal Article
Publication date2021-11-09
Q1
Q1
SJR2.216
CiteScore13.7
Impact factor8
ISSN21951071
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Abstract
Lead sulfide colloidal quantum dot photodiodes (PbS QDPDs) exhibit a high energy conversion efficiency for infrared detection. Despite the high photoinduced current, the performance of PbS QDPDs is limited by the high dark current which is rarely investigated. Understanding the dark current in PbS QDPDs is critical to improving the detectivity of PbS QDPDs. Herein, it is demonstrated that minority carriers of I-passivated PbS films and trap sites of EDT-passivated PbS films are related to the dark current of PbS QDPD. Utilizing annealing and low-temperature ligand exchange processes, the dark current density can be decreased almost tenfold by suppressing the minority carrier diffusion in the PN junction and trap-assisted charge injection from the electrode. PN junction simulation, space charge limited current measurements, as well as structural, optical, and chemical characterizations are conducted to elucidate the origins of the dark current suppression. The authors achieve the lowest dark current density of 2.9 × 10−5 mA cm−2 at −1 V among PbS-based QDPDs and a high detectivity of 6.7 × 1012 Jones at 980 nm. It is believed that this work provides fundamental understanding of carrier statistics in nanomaterials and device performance as well as a technological basis for realizing low-cost high-performance optoelectronic devices.

Top-30

Journals

1
2
3
4
5
Advanced Optical Materials
5 publications, 16.13%
ACS applied materials & interfaces
3 publications, 9.68%
ACS Photonics
2 publications, 6.45%
ACS Energy Letters
2 publications, 6.45%
Advanced Energy Materials
2 publications, 6.45%
Journal of Applied Physics
1 publication, 3.23%
Advanced Science
1 publication, 3.23%
Journal of Physical Chemistry Letters
1 publication, 3.23%
IEEE Transactions on Electron Devices
1 publication, 3.23%
Physical Chemistry Chemical Physics
1 publication, 3.23%
Advanced Functional Materials
1 publication, 3.23%
Small
1 publication, 3.23%
InfoMat
1 publication, 3.23%
Laser and Photonics Reviews
1 publication, 3.23%
Russian Chemical Reviews
1 publication, 3.23%
Advanced Materials
1 publication, 3.23%
Korean Journal of Chemical Engineering
1 publication, 3.23%
Journal of Materials Chemistry C
1 publication, 3.23%
Engineering
1 publication, 3.23%
IEEE Electron Device Letters
1 publication, 3.23%
ACS Applied Electronic Materials
1 publication, 3.23%
1
2
3
4
5

Publishers

2
4
6
8
10
12
14
Wiley
14 publications, 45.16%
American Chemical Society (ACS)
9 publications, 29.03%
Institute of Electrical and Electronics Engineers (IEEE)
2 publications, 6.45%
Royal Society of Chemistry (RSC)
2 publications, 6.45%
AIP Publishing
1 publication, 3.23%
Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 3.23%
Springer Nature
1 publication, 3.23%
Elsevier
1 publication, 3.23%
2
4
6
8
10
12
14
  • We do not take into account publications without a DOI.
  • Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
  • Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.
Metrics
Share
Cite this
GOST |
Cite this
GOST Copy
Jung B. K. et al. Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics // Advanced Optical Materials. 2021. Vol. 10. No. 2. p. 2101611.
GOST all authors (up to 50) Copy
Jung B. K., Woo H., Shin C., Park T., ZHANG Y., Lee K. J., Kim W., Bae J. H., Ahn J., Ng T. N., Oh S. J. Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics // Advanced Optical Materials. 2021. Vol. 10. No. 2. p. 2101611.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1002/adom.202101611
UR - https://doi.org/10.1002/adom.202101611
TI - Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics
T2 - Advanced Optical Materials
AU - Jung, Byung Ku
AU - Woo, Ho-Hyung
AU - Shin, Chanho
AU - Park, Taesung
AU - ZHANG, Yannan
AU - Lee, Kyu Joon
AU - Kim, W.
AU - Bae, Jung Ho
AU - Ahn, Jae-Pyoung
AU - Ng, Tse Nga
AU - Oh, Soong Ju
PY - 2021
DA - 2021/11/09
PB - Wiley
SP - 2101611
IS - 2
VL - 10
SN - 2195-1071
ER -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@article{2021_Jung,
author = {Byung Ku Jung and Ho-Hyung Woo and Chanho Shin and Taesung Park and Yannan ZHANG and Kyu Joon Lee and W. Kim and Jung Ho Bae and Jae-Pyoung Ahn and Tse Nga Ng and Soong Ju Oh},
title = {Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics},
journal = {Advanced Optical Materials},
year = {2021},
volume = {10},
publisher = {Wiley},
month = {nov},
url = {https://doi.org/10.1002/adom.202101611},
number = {2},
pages = {2101611},
doi = {10.1002/adom.202101611}
}
MLA
Cite this
MLA Copy
Jung, Byung Ku, et al. “Suppressing the Dark Current in Quantum Dot Infrared Photodetectors by Controlling Carrier Statistics.” Advanced Optical Materials, vol. 10, no. 2, Nov. 2021, p. 2101611. https://doi.org/10.1002/adom.202101611.
Found error?