Influence of Nickel Concentration on the Microstructure, Optical, Electrical, and Photoelectrochemical Properties of ZnO Nanorods Synthesized by Hydrothermal Method

Room temperature photoluminescence (PL) properties of vertically aligned and spindle-shaped, randomly oriented ZnO nanorods synthesized by using a low temperature hydrothermal method are studied. In air, the vertically aligned ZnO nanorods oriented mainly parallel to the luminescencerecording axis exhibited only one, very strong UV emission peak at 382 nm. This band is assigned to emission of free excitons. A new violet PL band near 400 nm arises with increasing angle between the nanorod growth direction and the luminescence-recording axis. The violet band also appears under UV illumination in vacuum and vanishes after exposure to air. The randomly oriented ZnO nanorods along with free exciton related PL band reveal a broad yellow-orange emission band around 590 nm. The violet band is attributed to Zn vacancy related defects or their complexes, while the yellow-orange emission band is ascribed to oxygen interstitial related defects.

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Deposition of ZnO Thin Film at Different Substrate Temperature Using RF Sputtering for Growth of ZnO Nanorods Using Hydrothermal Method for UV Detection

Control Instrumentation Systems - Lecture Notes in Electrical Engineering ◽

10.1007/978-981-13-9419-5_8 ◽

2019 ◽

pp. 91-98

Author(s):

Basavaraj S. Sannakashappanavar ◽

C. R. Byrareddy ◽

Sanjit Varma ◽

Nandini A. Pattanshetti ◽

Aniruddh Bahadur Yadav

Keyword(s):

Thin Film ◽

Substrate Temperature ◽

Hydrothermal Method ◽

Zno Nanorods ◽

Rf Sputtering ◽

Uv Detection ◽

Zno Thin Film

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Zero bias UV detection and precursor effect on properties of ZnO nanorods grown by hydrothermal method on SiO2/p-Si substrate

Thin Solid Films ◽

10.1016/j.tsf.2019.06.042 ◽

2019 ◽

Vol 685 ◽

pp. 343-352 ◽

Cited By ~ 3

Author(s):

Aniruddh Bahadur Yadav ◽

P.V.L. Parvathi ◽

Ruba Thabassum Shaik

Keyword(s):

Hydrothermal Method ◽

Zno Nanorods ◽

Uv Detection ◽

Si Substrate ◽

Zero Bias

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Enhancing the quasi-theoretical photocurrent density of ZnO nanorods via a lukewarm hydrothermal method

Nanoscale ◽

10.1039/d0nr00058b ◽

2020 ◽

Vol 12 (23) ◽

pp. 12292-12299

Author(s):

Ying-Chu Chen ◽

Zhi-Jie Wu ◽

Yu-Kuei Hsu

Keyword(s):

Hydrothermal Method ◽

Water Splitting ◽

Light Harvesting ◽

Zno Nanorods ◽

Photocurrent Density ◽

Photoelectrochemical Water Splitting ◽

Harvesting Efficiency ◽

Light Harvesting Efficiency

Anti-reflection enhanced the light harvesting efficiency of a ∼10-μm-long 1D ZnO NRA, which is evidently manifested in the quasi-theoretical photocurrent density that reached ∼0.9 mA cm−2 for solar photoelectrochemical water splitting.

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