InAs nanowires have been considered as good candidates for infrared photodetection. However, one-dimensional geometry of a nanowire makes it unsuitable for broadband light absorption. In this work, we propose and design InAs nanosheet arrays to achieve polarization-independent, angle-insensitive, and ultrawide infrared absorption. Simulations demonstrate that two-dimensional InAs nanosheets can support multiple resonance modes, thus leading to a strong and broadband absorption from visible light to mid-wave infrared. Moreover, we can tune polarization-dependent property in InAs nanosheets to be polarization-insensitive by forming a nanosheet based clover-like and snowflake-like nanostructures. We further optimized the design of InAs nanosheet arrays based on such structures and achieved high absorption (up to 99.6%) covering a broad wavelength range from 500 to 3200 nm. These absorption properties are much superior to their nanowire and planar film counterparts, making it attractive for infrared photodetection applications. The architecture of such nanostructures can provide a promising route for the development of high-performance room-temperature broadband infrared photodetectors.
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14 February 2022
Research Article|
February 17 2022
Design of InAs nanosheet arrays with ultrawide polarization-independent high absorption for infrared photodetection
Xinrong Zuo;
Xinrong Zuo
1
Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronic, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Ziyuan Li
;
Ziyuan Li
a)
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
a)Authors to whom correspondence should be addressed: ziyuan.li@anu.edu.au and xiaoming.yuan@csu.edu.cn
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Wei Wen Wong
;
Wei Wen Wong
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
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Yang Yu;
Yang Yu
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
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Xi Li;
Xi Li
3
School of Physics and Electronic Sciences, Changsha University of Science and Technology
, Changsha 410004, People's Republic of China
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Jun He;
Jun He
1
Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronic, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Lan Fu;
Lan Fu
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
4
ARC Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University
, Canberra, Australian Capital Territory 2601, Australia
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Hark Hoe Tan
;
Hark Hoe Tan
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
4
ARC Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University
, Canberra, Australian Capital Territory 2601, Australia
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Chennupati Jagadish
;
Chennupati Jagadish
2
Department of Electronic Materials Engineering, Research School of Physics, The Australian National University
, Canberra, ACT 2601, Australia
4
ARC Centre of Excellence for Transformative Meta-Optical Systems, Research School of Physics, The Australian National University
, Canberra, Australian Capital Territory 2601, Australia
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Xiaoming Yuan
Xiaoming Yuan
a)
1
Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronic, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
a)Authors to whom correspondence should be addressed: ziyuan.li@anu.edu.au and xiaoming.yuan@csu.edu.cn
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a)Authors to whom correspondence should be addressed: ziyuan.li@anu.edu.au and xiaoming.yuan@csu.edu.cn
Appl. Phys. Lett. 120, 071109 (2022)
Article history
Received:
August 11 2021
Accepted:
January 29 2022
Citation
Xinrong Zuo, Ziyuan Li, Wei Wen Wong, Yang Yu, Xi Li, Jun He, Lan Fu, Hark Hoe Tan, Chennupati Jagadish, Xiaoming Yuan; Design of InAs nanosheet arrays with ultrawide polarization-independent high absorption for infrared photodetection. Appl. Phys. Lett. 14 February 2022; 120 (7): 071109. https://doi.org/10.1063/5.0066507
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