Ultrasonically Assisted Fabrication of Graphene/ZnO Nanocomposites with Accelerated Ultraviolet Photoresponse
This study focuses on ultrasonically assisted fabrication of the graphene/ZnO interface by placing ZnO nanorods into a graphene-tetrahydrofuran solution. This technique increases the magnitude of the photocurrent in ZnO illuminated by a 275 nm light and accelerates the photocurrent transient. A simp...
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| Published in: | Journal of Nano- and Electronic Physics Vol. 17; no. 1; pp. 1028 - 1028-4 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Sumy Ukraine
Sumy State University, Journal of Nano - and Electronic Physics
2025
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| ISSN: | 2077-6772, 2306-4277 |
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| Abstract | This study focuses on ultrasonically assisted fabrication of the graphene/ZnO interface by placing ZnO nanorods into a graphene-tetrahydrofuran solution. This technique increases the magnitude of the photocurrent in ZnO illuminated by a 275 nm light and accelerates the photocurrent transient. A simplified model based on the charge transfer at the graphene/ZnO interface is proposed to describe the observed phenomenon. It is interpreted as a result of an enhanced injection of photogenerated electrons into graphene nanosheets accompanied by a significantly reduced concentration of oxygen atoms adsorbed on the surface of ZnO nanorods. This approach can be used to manufacture fast ultraviolet ZnO-based photodetectors. |
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| AbstractList | This study focuses on ultrasonically assisted fabrication of the graphene/ZnO interface by placing ZnO nanorods into a graphene-tetrahydrofuran solution. This technique increases the magnitude of the photocurrent in ZnO illuminated by a 275 nm light and accelerates the photocurrent transient. A simplified model based on the charge transfer at the graphene/ZnO interface is proposed to describe the observed phenomenon. It is interpreted as a result of an enhanced injection of photogenerated electrons into graphene nanosheets accompanied by a significantly reduced concentration of oxygen atoms adsorbed on the surface of ZnO nanorods. This approach can be used to manufacture fast ultraviolet ZnO-based photodetectors. |
| Author | Nadtochiy, A. Podolian, A. Romanyuk, B. Korotchenkov, O. Oberemok, O. Kosulya, O. |
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| SubjectTerms | Charge transfer Electrodes Glass substrates Graphene Light Nanocomposites Nanorods Oxygen atoms Photoelectric effect Photoelectric emission Physics Radiation Sensors Tetrahydrofuran Thin films Ultraviolet detectors Zinc oxide Zinc oxides |
| Title | Ultrasonically Assisted Fabrication of Graphene/ZnO Nanocomposites with Accelerated Ultraviolet Photoresponse |
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