Anindita Mondal, Agnimitra Sutradhar and Abha Misra*,
{"title":"单元化二硫化钼与等离子异质结构的折射率敏感耦合：单元胞几何的影响","authors":"Anindita Mondal, Agnimitra Sutradhar and Abha Misra*, ","doi":"10.1021/acsaom.5c0007110.1021/acsaom.5c00071","DOIUrl":null,"url":null,"abstract":"<p >The optical response of monolayer molybdenum disulfide (MoS<sub>2</sub>) is recorded after coupling it with the plasmonic array of gold nanostructures of different unit cell geometry. The normalized reflection spectra are recorded in different refractive index media varying from 1.00 to 1.47. A unique dependence on the unit cell geometry of the plasmonic array is observed, where the dimer and dumbbell structures showed a sensitivity of 23.49 and 60.70 nm/RIU, respectively. The shift in A excitonic peak position in the reflectance spectra of plasmonic MoS<sub>2</sub> is more pronounced compared to the shift in the B excitonic peak. An improved absorption by A and B excitons was observed compared with monolayer MoS<sub>2</sub>. The concept of tailoring excitonic intensity paves a way towards opto-chemical sensing, as well as provides a platform for two-dimensional (2D) nano-optoelectronics applications.</p>","PeriodicalId":29803,"journal":{"name":"ACS Applied Optical Materials","volume":"3 5","pages":"1097–1105 1097–1105"},"PeriodicalIF":0.0000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Refractive Index Sensitive Coupling of Monolayer MoS2 and Plasmonic Heterostructure: Effect of Unit Cell Geometry\",\"authors\":\"Anindita Mondal, Agnimitra Sutradhar and Abha Misra*, \",\"doi\":\"10.1021/acsaom.5c0007110.1021/acsaom.5c00071\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The optical response of monolayer molybdenum disulfide (MoS<sub>2</sub>) is recorded after coupling it with the plasmonic array of gold nanostructures of different unit cell geometry. The normalized reflection spectra are recorded in different refractive index media varying from 1.00 to 1.47. A unique dependence on the unit cell geometry of the plasmonic array is observed, where the dimer and dumbbell structures showed a sensitivity of 23.49 and 60.70 nm/RIU, respectively. The shift in A excitonic peak position in the reflectance spectra of plasmonic MoS<sub>2</sub> is more pronounced compared to the shift in the B excitonic peak. An improved absorption by A and B excitons was observed compared with monolayer MoS<sub>2</sub>. The concept of tailoring excitonic intensity paves a way towards opto-chemical sensing, as well as provides a platform for two-dimensional (2D) nano-optoelectronics applications.</p>\",\"PeriodicalId\":29803,\"journal\":{\"name\":\"ACS Applied Optical Materials\",\"volume\":\"3 5\",\"pages\":\"1097–1105 1097–1105\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-05-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Optical Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsaom.5c00071\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Optical Materials","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaom.5c00071","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Refractive Index Sensitive Coupling of Monolayer MoS2 and Plasmonic Heterostructure: Effect of Unit Cell Geometry
The optical response of monolayer molybdenum disulfide (MoS2) is recorded after coupling it with the plasmonic array of gold nanostructures of different unit cell geometry. The normalized reflection spectra are recorded in different refractive index media varying from 1.00 to 1.47. A unique dependence on the unit cell geometry of the plasmonic array is observed, where the dimer and dumbbell structures showed a sensitivity of 23.49 and 60.70 nm/RIU, respectively. The shift in A excitonic peak position in the reflectance spectra of plasmonic MoS2 is more pronounced compared to the shift in the B excitonic peak. An improved absorption by A and B excitons was observed compared with monolayer MoS2. The concept of tailoring excitonic intensity paves a way towards opto-chemical sensing, as well as provides a platform for two-dimensional (2D) nano-optoelectronics applications.
期刊介绍：
ACS Applied Optical Materials is an international and interdisciplinary forum to publish original experimental and theoretical including simulation and modeling research in optical materials complementing the ACS Applied Materials portfolio. With a focus on innovative applications ACS Applied Optical Materials also complements and expands the scope of existing ACS publications that focus on fundamental aspects of the interaction between light and matter in materials science including ACS Photonics Macromolecules Journal of Physical Chemistry C ACS Nano and Nano Letters.The scope of ACS Applied Optical Materials includes high quality research of an applied nature that integrates knowledge in materials science chemistry physics optical science and engineering.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
