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Title: Resonance-Enhanced Absorption in Hollow Nanoshell Spheres with Omnidirectional Detection and High Responsivity and Speed

Optical resonance formed inside a nanocavity resonator can trap light within the active region and hence enhance light absorption, effectively boosting device or material performance in applications of solar cells, photodetectors (PDs), and photocatalysts. Complementing conventional circular and spherical structures, a new type of multishelled spherical resonant strategy is presented. Due to the resonance–enhanced absorption by multiple convex shells, ZnO nanoshell PDs show improved optoelectronic performance and omnidirectional detection of light at different incidence angles and polarization. In addition, the response and recovery speeds of these devices are improved (0.8 and 0.7 ms, respectively) up to three orders of magnitude faster than in previous reports because of the existence of junction barriers between the nanoshells. As a result, the general design principles behind these hollow ZnO nanoshells pave a new way to improve the performance of sophisticated nanophotonic devices.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [3] ; ORCiD logo [1] ;  [4]
  1. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  2. Chinese Academy of Sciences (CAS), Beijing (China)
  3. Chinese Academy of Sciences (CAS), Beijing (China); Griffith Univ., Queensland (Australia)
  4. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; OSR-2016-CRG5-3005; 21031005
Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 34; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; nanoshell spheres; photodetectors; whispering gallery mode
OSTI Identifier:
1476109

Lien, Der -Hsien, Dong, Zhenghong, Retamal, Jose Ramon Duran, Wang, Hsin -Ping, Wei, Tzu -Chiao, Wang, Dan, He, Jr -Hau, and Cui, Yi. Resonance-Enhanced Absorption in Hollow Nanoshell Spheres with Omnidirectional Detection and High Responsivity and Speed. United States: N. p., Web. doi:10.1002/adma.201801972.
Lien, Der -Hsien, Dong, Zhenghong, Retamal, Jose Ramon Duran, Wang, Hsin -Ping, Wei, Tzu -Chiao, Wang, Dan, He, Jr -Hau, & Cui, Yi. Resonance-Enhanced Absorption in Hollow Nanoshell Spheres with Omnidirectional Detection and High Responsivity and Speed. United States. doi:10.1002/adma.201801972.
Lien, Der -Hsien, Dong, Zhenghong, Retamal, Jose Ramon Duran, Wang, Hsin -Ping, Wei, Tzu -Chiao, Wang, Dan, He, Jr -Hau, and Cui, Yi. 2018. "Resonance-Enhanced Absorption in Hollow Nanoshell Spheres with Omnidirectional Detection and High Responsivity and Speed". United States. doi:10.1002/adma.201801972.
@article{osti_1476109,
title = {Resonance-Enhanced Absorption in Hollow Nanoshell Spheres with Omnidirectional Detection and High Responsivity and Speed},
author = {Lien, Der -Hsien and Dong, Zhenghong and Retamal, Jose Ramon Duran and Wang, Hsin -Ping and Wei, Tzu -Chiao and Wang, Dan and He, Jr -Hau and Cui, Yi},
abstractNote = {Optical resonance formed inside a nanocavity resonator can trap light within the active region and hence enhance light absorption, effectively boosting device or material performance in applications of solar cells, photodetectors (PDs), and photocatalysts. Complementing conventional circular and spherical structures, a new type of multishelled spherical resonant strategy is presented. Due to the resonance–enhanced absorption by multiple convex shells, ZnO nanoshell PDs show improved optoelectronic performance and omnidirectional detection of light at different incidence angles and polarization. In addition, the response and recovery speeds of these devices are improved (0.8 and 0.7 ms, respectively) up to three orders of magnitude faster than in previous reports because of the existence of junction barriers between the nanoshells. As a result, the general design principles behind these hollow ZnO nanoshells pave a new way to improve the performance of sophisticated nanophotonic devices.},
doi = {10.1002/adma.201801972},
journal = {Advanced Materials},
number = 34,
volume = 30,
place = {United States},
year = {2018},
month = {7}
}

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