Journal ArticleDOI
Enhancing sensitivity of a single ZnO micro-/nanowire photodetector by piezo-phototronic effect
TLDR
The results show that the piezo-phototronic effect can enhance the detection sensitivity more than 5-fold for pW levels of light detection.Abstract:
We demonstrate the piezoelectric effect on the responsivity of a metalsemiconductormetal ZnO micro-/nanowire photodetector. The responsivity of the photodetector is respectively enhanced by 530%, 190%, 9%, and 15% upon 4.1 pW, 120.0 pW, 4.1 nW, and 180.4 nW UV light illumination onto the wire by introducing a0.36% compressive strain in the wire, which effectively tuned the Schottky barrier height at the contact by the produced local piezopotential. After a systematic study on the Schottky barrier height change with tuning of the strain and the excitation light intensity, an in-depth understanding is provided about the physical mechanism of the coupling of piezoelectric, optical, and semiconducting properties. Our results show that the piezo-phototronic effect can enhance the detection sensitivity more than 5-fold for pW levels of light detection.read more
Citations
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Journal ArticleDOI
High-gain phototransistors based on a CVD MoS₂ monolayer.
TL;DR: A phototransistor based on a chemical vapor deposited MoS2 monolayer exhibits a high photoresponsivity and an excellent photogain and the presence of shallow traps contributes to the persistent photoconductivity.
Journal ArticleDOI
25th Anniversary Article: Semiconductor Nanowires – Synthesis, Characterization, and Applications
Neil P. Dasgupta,Jianwei Sun,Jianwei Sun,Chong Liu,Chong Liu,Sarah Brittman,Sarah Brittman,Sean C. Andrews,Sean C. Andrews,Jongwoo Lim,Jongwoo Lim,Hanwei Gao,Hanwei Gao,Ruoxue Yan,Ruoxue Yan,Peidong Yang +15 more
TL;DR: A detailed explanation of the unique properties associated with the one-dimensional nanowire geometry will be presented, and the benefits of these properties for the various applications will be highlighted.
Journal ArticleDOI
Piezopotential gated nanowire devices: Piezotronics and piezo-phototronics
TL;DR: In this article, the authors introduce the fundamentals of piezotronics and piezo-phototronics, and give an updated progress about their applications in energy science and sensors.
Journal ArticleDOI
A Comprehensive Review of Semiconductor Ultraviolet Photodetectors: From Thin Film to One-Dimensional Nanostructures
TL;DR: A comprehensive review on the state-of-the-art research activities in the UV photodetection field, including not only semiconductor thin films, but also 1D nanostructured materials, which are attracting more and more attention in the detection field are provided.
Journal ArticleDOI
High-resolution electroluminescent imaging of pressure distribution using a piezoelectric nanowire LED array
Caofeng Pan,Caofeng Pan,Lin Dong,Lin Dong,Guang Zhu,Simiao Niu,Ruomeng Yu,Qing Yang,Ying Liu,Zhong Lin Wang,Zhong Lin Wang +10 more
TL;DR: An array of piezoelectric nanowire LEDs with a pixel density of 6,350 dpi is capable of mapping two-dimensional pressure distributions with a spatial resolution of 2.7 micrometres as mentioned in this paper.
References
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Journal ArticleDOI
Room-temperature ultraviolet nanowire nanolasers
Michael H. Huang,Samuel S. Mao,Henning Feick,Haoquan Yan,Yiying Wu,Hannes Kind,Eicke R. Weber,Richard E. Russo,Peidong Yang,Peidong Yang +9 more
TL;DR: Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.
Journal ArticleDOI
Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays
TL;DR: This approach has the potential of converting mechanical, vibrational, and/or hydraulic energy into electricity for powering nanodevices.
Journal ArticleDOI
Nanobelts of Semiconducting Oxides
TL;DR: The beltlike morphology appears to be a distinctive and common structural characteristic for the family of semiconducting oxides with cations of different valence states and materials of distinct crystallographic structures, which could be an ideal system for fully understanding dimensionally confined transport phenomena in functional oxides.