Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes
Single layers of tin selenide (SnSe), which have a similar structure as graphene and phosphorene, also show excellent optoelectronic properties, and have received much attention as a two-dimensional (2D) material beyond other 2D material family members. Surface plasmon resonance (SPR) sensors based...
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MDPI AG
2019-01-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/19/1/173 |
| _version_ | 1818001098059808768 |
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| author | Xiaoyu Dai Yanzhao Liang Yuting Zhao Shuaiwen Gan Yue Jia Yuanjiang Xiang |
| author_facet | Xiaoyu Dai Yanzhao Liang Yuting Zhao Shuaiwen Gan Yue Jia Yuanjiang Xiang |
| author_sort | Xiaoyu Dai |
| collection | DOAJ |
| description | Single layers of tin selenide (SnSe), which have a similar structure as graphene and phosphorene, also show excellent optoelectronic properties, and have received much attention as a two-dimensional (2D) material beyond other 2D material family members. Surface plasmon resonance (SPR) sensors based on three monolayer SnSe allotropes are investigated with the transfer matrix method. The simulated results have indicated that the proposed SnSe-containing biochemical sensors are suitable to detect different types of analytes. Compared with the conventional Ag-only film biochemical sensor whose sensitivity is 116°/RIU, the sensitivities of these SnSe-based biochemical sensors containing α-SnSe, δ-SnSe, ε-SnSe, were obviously increased to 178°/RIU, 156°/RIU and 154°/RIU, respectively. The diverse biosensor sensitivities achieved with these three SnSe allotropes suggest that these 2D materials can adjust SPR sensor properties. |
| first_indexed | 2024-04-14T03:30:24Z |
| format | Article |
| id | doaj.art-aa787ebb37a04654b1f303f9c0fa48e3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T03:30:24Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-aa787ebb37a04654b1f303f9c0fa48e32022-12-22T02:15:00ZengMDPI AGSensors1424-82202019-01-0119117310.3390/s19010173s19010173Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) AllotropesXiaoyu Dai0Yanzhao Liang1Yuting Zhao2Shuaiwen Gan3Yue Jia4Yuanjiang Xiang5International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaInternational Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technoloy of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaSingle layers of tin selenide (SnSe), which have a similar structure as graphene and phosphorene, also show excellent optoelectronic properties, and have received much attention as a two-dimensional (2D) material beyond other 2D material family members. Surface plasmon resonance (SPR) sensors based on three monolayer SnSe allotropes are investigated with the transfer matrix method. The simulated results have indicated that the proposed SnSe-containing biochemical sensors are suitable to detect different types of analytes. Compared with the conventional Ag-only film biochemical sensor whose sensitivity is 116°/RIU, the sensitivities of these SnSe-based biochemical sensors containing α-SnSe, δ-SnSe, ε-SnSe, were obviously increased to 178°/RIU, 156°/RIU and 154°/RIU, respectively. The diverse biosensor sensitivities achieved with these three SnSe allotropes suggest that these 2D materials can adjust SPR sensor properties.http://www.mdpi.com/1424-8220/19/1/173SnSe allotropeSPR sensorhigh sensitivity |
| spellingShingle | Xiaoyu Dai Yanzhao Liang Yuting Zhao Shuaiwen Gan Yue Jia Yuanjiang Xiang Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes Sensors SnSe allotrope SPR sensor high sensitivity |
| title | Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes |
| title_full | Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes |
| title_fullStr | Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes |
| title_full_unstemmed | Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes |
| title_short | Sensitivity Enhancement of a Surface Plasmon Resonance with Tin Selenide (SnSe) Allotropes |
| title_sort | sensitivity enhancement of a surface plasmon resonance with tin selenide snse allotropes |
| topic | SnSe allotrope SPR sensor high sensitivity |
| url | http://www.mdpi.com/1424-8220/19/1/173 |
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