Electrical Properties of Films of Zinc Oxide Nanoparticles and its Hybrid with Reduced Graphene Oxide

被引：2
作者：
Madhuri, K. Priya [1 ]
Bramhaiah, K. [1 ]
John, Neena S. [1 ]
机构：
[1] Ctr Nano & Soft Matter Sci, PB 1329, Bangalore 560013, Karnataka, India
来源：
DAE SOLID STATE PHYSICS SYMPOSIUM 2015 | 2016年 / 1731卷
关键词：
Atomic force microscopy; Electrical properties; Metal oxide films; Graphene composites; ZNO HYBRID; COMPOSITES; PHOTORESPONSE; PHOTODETECTOR; PHOTOCURRENT;
D O I：
10.1063/1.4947748
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Free-standing films of ZnO nanoparticles (NPs) and reduced graphene oxide (rGO)-ZnO NPs hybrid are prepared at a liquid/ liquid interface. The films are characterized by UV-visible spectroscopy, X-ray diffraction, scanning electron microscopy and atomic force microscopy. ZnO film consists of spherical aggregated NPs while the hybrid film contains folded sheets of rGO with embedded ZnO NPs. Electrical properties of the films and its photoresponse in presence of UV radiation are investigated using current sensing atomic force microscopy (CSAFM) at nanoscale and bulk measurements using two probe methods. Enhancement in photocurrent is observed in both cases and the current imaging reveals an inhomogeneous contribution by different ZnO grains in the film.
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页数：3
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