完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lee, Kuang-Li | en_US |
dc.contributor.author | Tsai, Po-Cheng | en_US |
dc.contributor.author | You, Meng-Lin | en_US |
dc.contributor.author | Pan, Ming-Yang | en_US |
dc.contributor.author | Shi, Xu | en_US |
dc.contributor.author | Ueno, Kosei | en_US |
dc.contributor.author | Misawa, Hiroaki | en_US |
dc.contributor.author | Wei, Pei-Kuen | en_US |
dc.date.accessioned | 2019-04-03T06:41:32Z | - |
dc.date.available | 2019-04-03T06:41:32Z | - |
dc.date.issued | 2017-10-01 | en_US |
dc.identifier.issn | 2470-1343 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1021/acsomega.7b01349 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/147862 | - |
dc.description.abstract | The studies of nanostructure-based aluminum sensors have attracted huge attention because aluminum is a more cost-effective plasmonic material. However, the intrinsic properties of the aluminum metal, having a large imaginary part of the dielectric function and a longer electromagnetic field decay length and problems of poor long-term chemical stability, limit the surface-sensing capability and applicability of nanostructures. We propose the combination of capped aluminum nanoslits and a thin-capped dielectric layer to overcome these limitations. We show that the dielectric layer can positively enhance the wavelength sensitivities of the Wood's anomaly-dominant resonance and asymmetric Fano resonance in capped aluminum nanoslits. The maximum improvement can be reached by a factor of 3.5. Besides, there is an optimal layer thickness for the surface sensitivity because of the trade-off relationship between the refractive index sensitivity and decay length. We attribute the enhanced surface sensitivity to a reduced evanescent length, which is confirmed by the finite difference time-domain calculations. The protein-protein interaction experiments verify the high-surface sensitivity of the structures, and a limit of quantification (LOQ) of 1 pg/mL antibovine serum albumin is achieved. Such low-cost, highly sensitive aluminum-based nanostructures can benefit various sensing applications. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Enhancing Surface Sensitivity of Nanostructure-Based Aluminum Sensors Using Capped Dielectric Layers | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1021/acsomega.7b01349 | en_US |
dc.identifier.journal | ACS OMEGA | en_US |
dc.citation.volume | 2 | en_US |
dc.citation.issue | 10 | en_US |
dc.citation.spage | 7461 | en_US |
dc.citation.epage | 7470 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000418744000122 | en_US |
dc.citation.woscount | 3 | en_US |
顯示於類別: | 期刊論文 |