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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Veröffentlicht in:Journal of Nano- and Electronic Physics Jg. 17; H. 1; S. 1028 - 1028-4
Hauptverfasser: Nadtochiy, A., Podolian, A., Korotchenkov, O., Oberemok, O., Kosulya, O., Romanyuk, B.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Sumy Ukraine Sumy State University, Journal of Nano - and Electronic Physics 2025
Schlagworte:
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
ISSN:2077-6772, 2306-4277
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Zusammenfassung: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.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:2077-6772
2306-4277
DOI:10.21272/jnep.17(1).01028