Nonmetallic Materials for Plasmonic Hot Carrier Excitation
نویسندگان
چکیده
منابع مشابه
Collective excitation of plasmonic hot-spots for enhanced hot charge carrier transfer in metal/semiconductor contacts.
We show how a combination of near- and far-field coupling of the localised surface plasmon resonances in aluminium nanoparticles deposited on TiO2 films greatly enhances the visible light photocatalytic activity of the semiconductor material. We demonstrate two orders of magnitude enhancement in the rate of decomposition of methylene blue under visible light illumination when the surface of TiO...
متن کاملMaterials for hot carrier plasmonics
While the field of plasmonics has grown significantly in recent years, the relatively high losses and limited material choices have remained a challenge for the development of many device concepts. The decay of plasmons into hot carrier excitations is one of the main loss mechanisms; however, this process offers an opportunity for the direct utilization of loss if excited carriers can be collec...
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Hot charge carrier extraction from metallic nanostructures is a very promising approach for applications in photocatalysis, photovoltaics, and photodetection. One limitation is that many metallic nanostructures support a single plasmon resonance thus restricting the light-to-charge-carrier activity to a spectral band. Here we demonstrate that a monolayer of plasmonic nanoparticles can be assemb...
متن کاملMaterials for hot carrier plasmonics [Invited]
While the field of plasmonics has grown significantly in recent years, the relatively high losses and limited material choices have remained a challenge for the development of many device concepts. The decay of plasmons into hot carrier excitations is one of the main loss mechanisms; however, this process offers an opportunity for the direct utilization of loss if excited carriers can be collec...
متن کاملMetal-insulator-semiconductor heterostructures for plasmonic hot-carrier optoelectronics.
Plasmonic hot-electron devices are attractive candidates for light-energy harvesting and photodetection applications. For solid state devices, the most compact and straightforward architecture is the metal-semiconductor Schottky junction. However convenient, this structure introduces limitations such as the elevated dark current associated to thermionic emission, or constraints for device desig...
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ژورنال
عنوان ژورنال: Advanced Optical Materials
سال: 2018
ISSN: 2195-1071,2195-1071
DOI: 10.1002/adom.201800603