期刊
ACS PHOTONICS
卷 2, 期 7, 页码 950-957出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.5b00149
关键词
hot carriers; plasmonic crystal; photodetectors; soft nanoimprint lithography; internal photoemission
类别
资金
- Fundacio Privada Cellex Barcelona
- European Commission [PIRG06-GA-2009-256355]
- Ministerio de Ciencia e Innovacion [TEC2011-24744]
- Nanophotonics for Energy Network of Excellence [N4E GA.248855]
- ICFONEST fellowship (COFUND program)
In view of their exciting optoelectronic light matter interaction properties, plasmonic hot-electron devices have attracted significant attention during the last few years as a novel route for photodetection and light-energy harvesting. Herein we report the use of quasi-3D large-area plasmonic crystals (PC) for hot-electron photodetection, with a tunable response across the visible and near-infrared. The strong interplay between the different PC modes gives access to intense electric fields and hot-carrier generation confined to the metal semiconductor interface, maximizing injection efficiencies with responsivities up to 70 mA/W. Our approach, compatible with large-scale manufacturing, paves the way for the practical implementation of plasmonic hot-electron optoelectronic devices.
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