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Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors

Lijing Yu, Pin Tian, Libin Tang, Wenbin Zuo, Hefu Zhong, Qun Hao, Vincent Teng Orcid Logo, Guiqin Zhao, Runhong Su, Xiaoxia Gong, Jun Yuan

Sensors, Volume: 23, Issue: 9, Start page: 4328

Swansea University Author: Vincent Teng Orcid Logo

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DOI (Published version): 10.3390/s23094328

Abstract

Lead sulfide colloidal quantum dots (PbS CQDs) are promising optoelectronic materials due to their unique properties, such as tunable band gap and strong absorption, which are of immense interest for application in photodetectors and solar cells. However, the tunable band gap of PbS CQDs would only...

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Published in: Sensors
ISSN: 1424-8220
Published: MDPI AG
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URI: https://cronfa.swan.ac.uk/Record/cronfa63264
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spelling v2 63264 2023-04-27 Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors 98f529f56798da1ba3e6e93d2817c114 0000-0003-4325-8573 Vincent Teng Vincent Teng true false 2023-04-27 EEEG Lead sulfide colloidal quantum dots (PbS CQDs) are promising optoelectronic materials due to their unique properties, such as tunable band gap and strong absorption, which are of immense interest for application in photodetectors and solar cells. However, the tunable band gap of PbS CQDs would only cover visible short-wave infrared; the ability to detect longer wavelengths, such as mid- and long-wave infrared, is limited because they are restricted by the band gap of the bulk material. In this paper, a novel photodetector based on the synergistic effect of PbS CQDs and bismuth telluride (Bi2Te3) was developed for the detection of a mid-wave infrared band at room temperature. The device demonstrated good performance in the visible-near infrared band (i.e., between 660 and 850 nm) with detectivity of 1.6 × 1010 Jones at room temperature. It also exhibited photoelectric response in the mid-wave infrared band (i.e., between 4.6 and 5.1 μm). The facile fabrication process and excellent performance (with a response of up to 5.1 μm) of the hybrid Bi2Te3/PbS CQDS photodetector are highly attractive for many important applications that require high sensitivity and broadband light detection. Journal Article Sensors 23 9 4328 MDPI AG 1424-8220 photodetector; room temperature; colloidal quantum dots (CQDs); Bi2Te3; synergy effect; broadband 0 0 0 0001-01-01 10.3390/s23094328 http://dx.doi.org/10.3390/s23094328 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University This research was funded by the National Key Research and Development Program of China (2019YFB2203404) and the Yunnan Province Innovation Team Project (2018HC020). 2023-05-25T09:54:08.4574130 2023-04-27T15:13:52.5342067 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Lijing Yu 1 Pin Tian 2 Libin Tang 3 Wenbin Zuo 4 Hefu Zhong 5 Qun Hao 6 Vincent Teng 0000-0003-4325-8573 7 Guiqin Zhao 8 Runhong Su 9 Xiaoxia Gong 10 Jun Yuan 11 63264__27569__218cd3bb9fe04e41bcb9b986abba5a8a.pdf 63264.pdf 2023-05-22T15:24:31.4593052 Output 3049297 application/pdf Version of Record true 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). true eng https://creativecommons.org/licenses/by/4.0/
title Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
spellingShingle Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
Vincent Teng
title_short Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
title_full Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
title_fullStr Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
title_full_unstemmed Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
title_sort Room Temperature Broadband Bi2Te3/PbS Colloidal Quantum Dots Infrared Photodetectors
author_id_str_mv 98f529f56798da1ba3e6e93d2817c114
author_id_fullname_str_mv 98f529f56798da1ba3e6e93d2817c114_***_Vincent Teng
author Vincent Teng
author2 Lijing Yu
Pin Tian
Libin Tang
Wenbin Zuo
Hefu Zhong
Qun Hao
Vincent Teng
Guiqin Zhao
Runhong Su
Xiaoxia Gong
Jun Yuan
format Journal article
container_title Sensors
container_volume 23
container_issue 9
container_start_page 4328
institution Swansea University
issn 1424-8220
doi_str_mv 10.3390/s23094328
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
url http://dx.doi.org/10.3390/s23094328
document_store_str 1
active_str 0
description Lead sulfide colloidal quantum dots (PbS CQDs) are promising optoelectronic materials due to their unique properties, such as tunable band gap and strong absorption, which are of immense interest for application in photodetectors and solar cells. However, the tunable band gap of PbS CQDs would only cover visible short-wave infrared; the ability to detect longer wavelengths, such as mid- and long-wave infrared, is limited because they are restricted by the band gap of the bulk material. In this paper, a novel photodetector based on the synergistic effect of PbS CQDs and bismuth telluride (Bi2Te3) was developed for the detection of a mid-wave infrared band at room temperature. The device demonstrated good performance in the visible-near infrared band (i.e., between 660 and 850 nm) with detectivity of 1.6 × 1010 Jones at room temperature. It also exhibited photoelectric response in the mid-wave infrared band (i.e., between 4.6 and 5.1 μm). The facile fabrication process and excellent performance (with a response of up to 5.1 μm) of the hybrid Bi2Te3/PbS CQDS photodetector are highly attractive for many important applications that require high sensitivity and broadband light detection.
published_date 0001-01-01T09:54:08Z
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score 11.01628

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