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Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors
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...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181788/ https://www.ncbi.nlm.nih.gov/pubmed/37177533 http://dx.doi.org/10.3390/s23094328 |
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author | Yu, Lijing Tian, Pin Tang, Libin Zuo, Wenbin Zhong, Hefu Hao, Qun Teng, Kar Seng Zhao, Guiqin Su, Runhong Gong, Xiaoxia Yuan, Jun |
author_facet | Yu, Lijing Tian, Pin Tang, Libin Zuo, Wenbin Zhong, Hefu Hao, Qun Teng, Kar Seng Zhao, Guiqin Su, Runhong Gong, Xiaoxia Yuan, Jun |
author_sort | Yu, Lijing |
collection | PubMed |
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 (Bi(2)Te(3)) 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 × 10(10) 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 Bi(2)Te(3)/PbS CQDS photodetector are highly attractive for many important applications that require high sensitivity and broadband light detection. |
format | Online Article Text |
id | pubmed-10181788 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101817882023-05-13 Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors Yu, Lijing Tian, Pin Tang, Libin Zuo, Wenbin Zhong, Hefu Hao, Qun Teng, Kar Seng Zhao, Guiqin Su, Runhong Gong, Xiaoxia Yuan, Jun Sensors (Basel) Article 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 (Bi(2)Te(3)) 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 × 10(10) 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 Bi(2)Te(3)/PbS CQDS photodetector are highly attractive for many important applications that require high sensitivity and broadband light detection. MDPI 2023-04-27 /pmc/articles/PMC10181788/ /pubmed/37177533 http://dx.doi.org/10.3390/s23094328 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Yu, Lijing Tian, Pin Tang, Libin Zuo, Wenbin Zhong, Hefu Hao, Qun Teng, Kar Seng Zhao, Guiqin Su, Runhong Gong, Xiaoxia Yuan, Jun Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title | Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title_full | Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title_fullStr | Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title_full_unstemmed | Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title_short | Room Temperature Broadband Bi(2)Te(3)/PbS Colloidal Quantum Dots Infrared Photodetectors |
title_sort | room temperature broadband bi(2)te(3)/pbs colloidal quantum dots infrared photodetectors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181788/ https://www.ncbi.nlm.nih.gov/pubmed/37177533 http://dx.doi.org/10.3390/s23094328 |
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