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Tailored Emission Properties of ZnTe/ZnTe:O/ZnO Core-Shell Nanowires Coupled with an Al Plasmonic Bowtie Antenna Array.
Nie, Kui-Ying; Tu, Xuecou; Li, Jing; Chen, Xuanhu; Ren, Fang-Fang; Zhang, Guo-Gang; Kang, Lin; Gu, Shulin; Zhang, Rong; Wu, Peiheng; Zheng, Youdou; Tan, Hark Hoe; Jagadish, Chennupati; Ye, Jiandong.
Afiliação
  • Nie KY; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Tu X; School of Physics and Engineering , Xingyi Normal University for Nationalities , Xingyi 562400 , China.
  • Li J; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Chen X; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Ren FF; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Zhang GG; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Kang L; Department of Electronic Materials Engineering, Research School of Physics and Engineering , The Australian National University , Canberra , ACT 2601 , Australia.
  • Gu S; Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210093 , China.
  • Zhang R; Grünberg Research Centre , Nanjing University of Posts and Telecommunications , Nanjing 210003 , China.
  • Wu P; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Zheng Y; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Tan HH; Collaborative Innovation Center of Solid-State Lighting and Energy-Saving Electronics , Nanjing University , Nanjing 210093 , China.
  • Jagadish C; School of Electronic Science and Engineering , Nanjing University , Nanjing 210093 , China.
  • Ye J; Collaborative Innovation Center of Advanced Microstructures , Nanjing University , Nanjing 210093 , China.
ACS Nano ; 12(7): 7327-7334, 2018 Jul 24.
Article em En | MEDLINE | ID: mdl-29894159
ABSTRACT
The ability to manipulate light-matter interaction in semiconducting nanostructures is fascinating for implementing functionalities in advanced optoelectronic devices. Here, we report the tailoring of radiative emissions in a ZnTe/ZnTeO/ZnO core-shell single nanowire coupled with a one-dimensional aluminum bowtie antenna array. The plasmonic antenna enables changes in the excitation and emission processes, leading to an obvious enhancement of near band edge emission (2.2 eV) and subgap excitonic emission (1.7 eV) bound to intermediate band states in a ZnTe/ZnTeO/ZnO core-shell nanowire as well as surface-enhanced Raman scattering at room temperature. The increase of emission decay rate in the nanowire/antenna system, probed by time-resolved photoluminescence spectroscopy, yields an observable enhancement of quantum efficiency induced by local surface plasmon resonance. Electromagnetic simulations agree well with the experimental observations, revealing a combined effect of enhanced electric near-field intensity and the improvement of quantum efficiency in the ZnTe/ZnTeO/ZnO nanowire/antenna system. The capability of tailoring light-matter interaction in low-efficient emitters may provide an alternative platform for designing advanced optoelectronic and sensing devices with precisely controlled response.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article