期刊
SMALL
卷 14, 期 20, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201703610
关键词
photoelectrochemistry; photonic; plasmonic; resonators; sensors
类别
资金
- National Natural Science Foundation of China [21775045, 21405046]
- Yingcai program of East China Normal University
Effective light trapping at the nanoscale is vital for efficient photoelectro-chemical (PEC) applications. Photonic and plasmonic resonators are the two most promising approaches for this purpose, and the synergetic combination of these two resonators will tail the propagation lengths of incident light along with field enhancements, and thus presents further enhanced light-trapping activity. Herein, a new hybrid photonic-plasmonic resonator is proposed through sputtering plasmonic Au nanoparticles (NPs) into the 2D photonic TiOx nanocavity. Through facile control of the size of Au NPs, the matching of resonant wavelength of plasmonic Au NPs and photonic nanocavities maximize the light-trapping intensity and thus further improve the PEC performance. Furthermore, for expanding the PEC applications, after functionalization of Au NPs with aptamer as a biomolecular recognition unit, a PEC aptasensor is also proposed and presents the highest sensitivity for antibiotic detection.
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