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| Band Gap Energy and Near Band Edge Emission Blue Shifts of ZnO Nanorods Prepared by Electrodeposition |
TANG Yang1,2( ) |
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 |
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Cite this article:
TANG Yang. Band Gap Energy and Near Band Edge Emission Blue Shifts of ZnO Nanorods Prepared by Electrodeposition. Chinese Journal of Materials Research, 2020, 34(11): 875-880.
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Abstract ZnO nanorod arrays were fabricated by electrodeposition in the traditional electrolytes incorporated with addition of salts such as NH4NO3 and Ga(NO3)3, so that the phyisical properties, such as the diameter, density, band gap energy, near band edge emission and stokes shift of the prepared ZnO nanorod arrays may be designed and tailored. Namely their diameter can be adjusted between 63 nm to 77 nm. With the use of Ga(NO3)3 as the additive, the density of ZnO nanorod arrays can be decreased to 7.0×109 /cm2; the band gap energy of the ZnO nanorod arrays showed blue shift from 53 meV to 73 meV with the stokes shift of 23 meV, which indicated that the new process of involving the Ga(NO3)3 resulted in the suppression of the non-radiative recombination.
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Received: 22 March 2020
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| Fund: National Natural Science Foundation of China(61404007);the Beijing Talents Fund(2015000021223ZK38) |
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