{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T19:56:20Z","timestamp":1771530980243,"version":"3.50.1"},"reference-count":41,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2023,4,27]],"date-time":"2023-04-27T00:00:00Z","timestamp":1682553600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2019YFB2203404"],"award-info":[{"award-number":["2019YFB2203404"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2018HC020"],"award-info":[{"award-number":["2018HC020"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Yunnan Province Innovation Team Project","award":["2019YFB2203404"],"award-info":[{"award-number":["2019YFB2203404"]}]},{"name":"Yunnan Province Innovation Team Project","award":["2018HC020"],"award-info":[{"award-number":["2018HC020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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 \u00d7 1010 Jones at room temperature. It also exhibited photoelectric response in the mid-wave infrared band (i.e., between 4.6 and 5.1 \u03bcm). The facile fabrication process and excellent performance (with a response of up to 5.1 \u03bcm) of the hybrid Bi2Te3\/PbS CQDS photodetector are highly attractive for many important applications that require high sensitivity and broadband light detection.<\/jats:p>","DOI":"10.3390\/s23094328","type":"journal-article","created":{"date-parts":[[2023,4,28]],"date-time":"2023-04-28T02:02:23Z","timestamp":1682647343000},"page":"4328","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Room Temperature Broadband Bi2Te3\/PbS Colloidal Quantum Dots Infrared Photodetectors"],"prefix":"10.3390","volume":"23","author":[{"given":"Lijing","family":"Yu","sequence":"first","affiliation":[{"name":"School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China"},{"name":"Kunming Institute of Physics, Kunming 650223, China"},{"name":"Yunnan Key Laboratory of Advanced Photoelectronic Materials & Devices, Kunming 650223, China"}]},{"given":"Pin","family":"Tian","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"},{"name":"Yunnan Key Laboratory of Advanced Photoelectronic Materials & Devices, Kunming 650223, China"}]},{"given":"Libin","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China"},{"name":"Kunming Institute of Physics, Kunming 650223, China"},{"name":"Yunnan Key Laboratory of Advanced Photoelectronic Materials & Devices, Kunming 650223, China"}]},{"given":"Wenbin","family":"Zuo","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"}]},{"given":"Hefu","family":"Zhong","sequence":"additional","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650500, China"}]},{"given":"Qun","family":"Hao","sequence":"additional","affiliation":[{"name":"School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China"}]},{"given":"Kar Seng","family":"Teng","sequence":"additional","affiliation":[{"name":"Department of Electronic and Electrical Engineering, Swansea University, Bay Campus, Fabian Way, Swansea SA1 8EN, UK"}]},{"given":"Guiqin","family":"Zhao","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"}]},{"given":"Runhong","family":"Su","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"}]},{"given":"Xiaoxia","family":"Gong","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"}]},{"given":"Jun","family":"Yuan","sequence":"additional","affiliation":[{"name":"Kunming Institute of Physics, Kunming 650223, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1935","DOI":"10.1039\/C5CS00846H","article-title":"Fundamental developments in infrared spectroscopic imaging for biomedical applications","volume":"45","author":"Pilling","year":"2016","journal-title":"Chem. 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