Photoinduced Temperature Gradients in Sub-Wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones

doi:10.1002/adom.202000568

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Photoinduced Temperature Gradients in Sub-Wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones
	Cunha, Joao ; Guo, Tian-Long ; Koya, Alemayehu Nana ; Toma, Andrea ; Prato, Mirko ; Della Valle, Giuseppe ; Alabastri, Alessandro ; Zaccaria, Remo Proietti
刊名	ADVANCED OPTICAL MATERIALS
	2020
卷号	8 期号:18
关键词	TIP-ENHANCED RAMAN METALLIC NANOSTRUCTURES FIELD ENHANCEMENT THERMAL-EXPANSION HEAT-GENERATION NANOPLASMONICS NANOPARTICLES COMPRESSION RESONANCES SIZE
DOI	10.1002/adom.202000568
英文摘要	Plasmonic structures are renowned for their capability to efficiently convert light into heat at the nanoscale. However, despite the possibility to generate deep sub-wavelength electromagnetic hot spots, the formation of extremely localized thermal hot spots is an open challenge of research, simply because of the diffusive spread of heat along the whole metallic nanostructure. Here this challenge is tackled by exploiting single gold nanocones. It is theoretically shown how these structures can indeed realize extremely high temperature gradients within the metal, leading to deep sub-wavelength thermal hot spots, owing to their capability of concentrating light at the apex under resonant conditions even under continuous wave illumination. A 3D finite element method model is employed to study the electromagnetic field in the structure and subsequent thermoplasmonic behavior, in terms of the 3D temperature distribution. How the latter is affected by nanocone size, shape, and composition of the surrounding environment is shown. Finally, the use of photoinduced temperature gradients in nanocones is anticipated for applications in optofluidics and thermoelectrics or for thermally induced nanofabrication.
学科主题	Materials Science ; Optics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20715]
专题	2020专题
作者单位	1.Zaccaria, RP (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Cixi Inst Biomed Engn, Zhongguan West Rd 1219, Ningbo 315201, Peoples R China. 2.Cunha, J 3.Cunha, J (corresponding author), Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China. 4.Zaccaria, RP (corresponding author), Ist Italiano Tecnol, Via Morego 30, I-16163 Genoa, Italy.
推荐引用方式 GB/T 7714	Cunha, Joao,Guo, Tian-Long,Koya, Alemayehu Nana,et al. Photoinduced Temperature Gradients in Sub-Wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones[J]. ADVANCED OPTICAL MATERIALS,2020,8(18).
APA	Cunha, Joao.,Guo, Tian-Long.,Koya, Alemayehu Nana.,Toma, Andrea.,Prato, Mirko.,...&Zaccaria, Remo Proietti.(2020).Photoinduced Temperature Gradients in Sub-Wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones.ADVANCED OPTICAL MATERIALS,8(18).
MLA	Cunha, Joao,et al."Photoinduced Temperature Gradients in Sub-Wavelength Plasmonic Structures: The Thermoplasmonics of Nanocones".ADVANCED OPTICAL MATERIALS 8.18(2020).