电沉积掺铝氧化锌纳米柱的光学性质裁剪

汤洋

doi:10.37188/CO.2020-0075

Volume 13 Issue 6

Dec. 2020

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Chinese Optics > 2020 > 13(6): 1257-1266.

TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J]. Chinese Optics, 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075

Citation:

TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J]. Chinese Optics, 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075

TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J]. Chinese Optics, 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075

Citation:

TANG Yang. Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition[J]. Chinese Optics, 2020, 13(6): 1257-1266. doi: 10.37188/CO.2020-0075

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Tailoring the optical properties of Al-doped ZnO Nanorods by electrodeposition

doi: 10.37188/CO.2020-0075

TANG Yang^{1, 2
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1.
Center for Green Energy and Architecture, China Energy Investment Corporation, Beijing 102211, China
2.
National Institute of Clean-and-Low-Carbon Energy, Beijing 102211, China

Funds: National Natural Science Foundation of China (No. 61404007); the Beijing Talents Fund (No. 2015000021223ZK38)

More Information

Corresponding author: ytang118@163.com
Received Date: 27 Apr 2020
Rev Recd Date: 27 May 2020

Available Online: 10 Sep 2020

Publish Date: 01 Dec 2020

Abstract

Abstract

In order to achieve the implantation of the ZnO nanorod arrays in the nanostructured solar cells, it is necessary to tailor and control the nanorods’ morphology, optical and electrical properties. ZnO nanorods arrays were fabricated by electrodeposition. The physical properties such as the crystalline quality, diameter, density, distance, Al doping concentration, optical band gap energy, near band emission and stokes shift can be adjusted by using Al(NO₃)₃ and NH₄NO₃. The ZnO nanorods’ diameter can be adjusted from 28 nm to 102 nm. The nanorod arrays’ density can be reduced to 2.7×10⁹ /cm² by using NH₄NO₃, resulting in an increase in the distance between nanorods to 164 nm. The Al/Zn weight ratio was increased to 2.92% by using NH₄NO₃, indicating that NH₄NO₃ can boost Al doping in ZnO nanorods. The ZnO nanorods’ optical band gap energy can be tailored from 3.36 eV to 3.55 eV by using Al(NO₃)₃ and NH₄NO₃ and the near band edge emission can also be adjusted. The use of Al(NO₃)₃ led to the increase of the Stokes shift to 200 meV, but it can be greatly reduced to 26 meV as a result of the NH₄NO₃. The use of Al(NO₃)₃ and NH₄NO₃ resulted in the fabrication of high-quality ZnO nanorod arrays with effectively tailored morphology and optical properties.
- ZnO,
- ammonium nitrate,
- aluminum nitrate,
- electrodeposition,
- optical band gap energy,
- stokes shift

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References(20)

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