Photo-enhanced gas sensing of SnS2 with nanoscale defects | |
Yan, Wen-Jie7; Chen, Deng-Yun7; Fuh, Huei-Ru4,8; Li, Ying-Lan7; Zhang, Duan7; Liu, Huajun3; Wu, Gang7; Zhang, Lei5; Ren, Xiangkui5; Cho, Jiung2 | |
刊名 | RSC ADVANCES |
2019 | |
卷号 | 9期号:2页码:626-635 |
ISSN号 | 2046-2069 |
DOI | 10.1039/c8ra08857h |
英文摘要 | Recently a SnS2 based NO2 gas sensor with a 30 ppb detection limit was demonstrated but this required high operation temperatures. Concurrently, SnS2 grown by chemical vapor deposition is known to naturally contain nanoscale defects, which could be exploited. Here, we significantly enhance the performance of a NO2 gas sensor based on SnS2 with nanoscale defects by photon illumination, and a detection limit of 2.5 ppb is achieved at room temperature. Using a classical Langmuir model and density functional theory simulations, we show S vacancies work as additional adsorption sites with fast adsorption times, higher adsorption energies, and an order of magnitude higher resistance change compared with pristine SnS2. More interestingly, when electron-hole pairs are excited by photon illumination, the average adsorption time first increases and then decreases with NO2 concentration, while the average desorption time always decreases with NO2 concentration. Our results give a deep understanding of photo-enhanced gas sensing of SnS2 with nanoscale defects, and thus open an interesting window for the design of high performance gas sensing devices based on 2D materials. |
资助项目 | National Key R&D Program of China[2017YFE0301404] ; National Key R&D Program of China[2017YFA0303800] ; National Natural Science Foundation of China[61874010] ; National Natural Science Foundation of China[11804237] ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology[2017CX01006] |
WOS关键词 | CHEMICAL-VAPOR-DEPOSITION ; 2-DIMENSIONAL SNS2 ; NO2 ; SENSORS ; GROWTH ; OXIDE ; NANOSTRUCTURES ; ADSORPTION ; MOLECULES ; CRYSTALS |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | ROYAL SOC CHEMISTRY |
WOS记录号 | WOS:000455494200006 |
资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology ; Science and Technology Innovation Program for Creative Talents in Beijing Institute of Technology |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/41349] |
专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
通讯作者 | Fuh, Huei-Ru; Chang, Ching-Ray; Wu, Han-Chun |
作者单位 | 1.Korea Basic Sci Inst, Chuncheon Ctr, Chunchon 24341, South Korea 2.Korea Basic Sci Inst, Western Seoul Ctr, Seoul 03579, South Korea 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 4.Yuan Ze Univ, Dept Chem Engn & Mat Sci, Taoyuan 320, Taiwan 5.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 6.Korea Res Inst Stand & Sci, Div Ind Metrol, Daejeon 305340, South Korea 7.Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China 8.Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan |
推荐引用方式 GB/T 7714 | Yan, Wen-Jie,Chen, Deng-Yun,Fuh, Huei-Ru,et al. Photo-enhanced gas sensing of SnS2 with nanoscale defects[J]. RSC ADVANCES,2019,9(2):626-635. |
APA | Yan, Wen-Jie.,Chen, Deng-Yun.,Fuh, Huei-Ru.,Li, Ying-Lan.,Zhang, Duan.,...&Wu, Han-Chun.(2019).Photo-enhanced gas sensing of SnS2 with nanoscale defects.RSC ADVANCES,9(2),626-635. |
MLA | Yan, Wen-Jie,et al."Photo-enhanced gas sensing of SnS2 with nanoscale defects".RSC ADVANCES 9.2(2019):626-635. |
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