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Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering
นักวิจัย : Li, Xianglin , Zhang, Yongzhe , Shen, Zexiang , Fan, Hong Jin
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Li, X., Zhang, Y., Shen, Z., & Fan, H. J. (2012). Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering. Small, 8(16), 2548-2554. , 1613-6810 , http://hdl.handle.net/10220/10387 , http://dx.doi.org/10.1002/smll.201200576
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Small
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

A highly ordered particle-in-bowl (PIB) nanostructure array is designed and fabricated to achieve large field enhancement for the surface-enhanced Raman scattering (SERS) application. This new type of PIB structure is composed of an Ag particle located at the bottom of an Au bowl, and the two are separated by a precisely controlled nanoscale dielectric layer. The fabrication of the PIB structure is based on the self-assembly of polystyrene spheres and atomic layer deposition (ALD), which allows good control of the metal particle size and gap distance, as well as large-scale ordering. Numerical simulation reveals a high enhancement of the local field at the nanogaps. The SERS performance of the PIB arrays, and the effects of the Ag particle size and the ALD dielectric layer thickness are characterized, results of which are in reasonable agreement with simulation. With Rhodmaine 6G as the probe molecule, the spatially averaged SERS enhancement factor is on the order of 3.8 × 107 and the local field enhancement from simulation can be up to 108.

บรรณานุกรม :
Li, Xianglin , Zhang, Yongzhe , Shen, Zexiang , Fan, Hong Jin . (2555). Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Xianglin , Zhang, Yongzhe , Shen, Zexiang , Fan, Hong Jin . 2555. "Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Li, Xianglin , Zhang, Yongzhe , Shen, Zexiang , Fan, Hong Jin . "Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Li, Xianglin , Zhang, Yongzhe , Shen, Zexiang , Fan, Hong Jin . Highly ordered arrays of particle-in-bowl plasmonic nanostructures for surface-enhanced Raman scattering. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.