{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["26(4)"],"submitter":["Du B"],"pubmed_abstract":["Chemiresistive gas sensors generally surfer from low selectivity, inferior anti-humidity, low response signal or signal-to-noise ratio, severely limiting the precise detection of chemical agents. Herein, we exploit high-performance gas sensors based on topological insulator Bi<sub>2</sub>Se<sub>3</sub> that is distinguished from conventional materials by robust metallic surface states protected by time-reversal symmetry. In the presence of Se vacancies, Bi<sub>2</sub>Se<sub>3</sub> nanosheets exhibit excellent gas sensing capability toward NO<sub>2</sub>, with a high response of 93% for 50 ppm and an ultralow theoretical limit of detection concentration about 0.06 ppb at room temperature. Remarkably, Bi<sub>2</sub>Se<sub>3</sub> demonstrates ultrahigh anti-humidity interference characteris"],"journal":["iScience"],"pagination":["106387"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10074142"],"repository":["biostudies-literature"],"pubmed_title":["Topological insulator Bi<sub>2</sub>Se<sub>3</sub> for highly sensitive, selective and anti-humidity gas sensors."],"pmcid":["PMC10074142"],"pubmed_authors":["Zhou M","Kang W","Zhu Z","Guo Y","Guo X","Lin X","Jian J","Yang X","Liang C","Du B","He Y","Tan Y","Wang Y","Meng G"],"additional_accession":[]},"is_claimable":false,"name":"Topological insulator Bi<sub>2</sub>Se<sub>3</sub> for highly sensitive, selective and anti-humidity gas sensors.","description":"Chemiresistive gas sensors generally surfer from low selectivity, inferior anti-humidity, low response signal or signal-to-noise ratio, severely limiting the precise detection of chemical agents. Herein, we exploit high-performance gas sensors based on topological insulator Bi<sub>2</sub>Se<sub>3</sub> that is distinguished from conventional materials by robust metallic surface states protected by time-reversal symmetry. In the presence of Se vacancies, Bi<sub>2</sub>Se<sub>3</sub> nanosheets exhibit excellent gas sensing capability toward NO<sub>2</sub>, with a high response of 93% for 50 ppm and an ultralow theoretical limit of detection concentration about 0.06 ppb at room temperature. Remarkably, Bi<sub>2</sub>Se<sub>3</sub> demonstrates ultrahigh anti-humidity interference characteris","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Apr","modification":"2025-04-19T17:28:26.345Z","creation":"2025-04-19T17:28:26.345Z"},"accession":"S-EPMC10074142","cross_references":{"pubmed":["37034984"],"doi":["10.1016/j.isci.2023.106387"]}}