Release Time:2019-03-13  Hits:

Indexed by: Journal Article

Date of Publication: 2016-02-01

Journal: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

Included Journals: Scopus、EI、SCIE

Volume: 27

Issue: 2

Page Number: 1983-1987

ISSN: 0957-4522

Abstract: A p-CuO/n-ZnO heterostructure was synthesized on an indium tin oxide coated flexible substrate (polyethylene terephthalate) by a simple and low-cost hydrothermal method. Scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction were used to characterize the as-synthesized heterostructure. The results indicated that flower-like CuO nanostructure conformably formed on the ZnO nanorods. Furthermore, a nanogenerator based on the p-CuO/n-ZnO heterostructure was fabricated for harvesting energy from environment, and the output performance of the device was investigated. A larger output current of similar to 100 nA was obtained in comparison with ZnO based nanogenerator, which could be ascribed to the formation of p-n heterojunctions in the CuO/ZnO composites, reducing the screening effect of excessive electrons. This strategy may provide a highly promising platform for realizing a high-performance flexible piezoelectric energy harvester by new composite piezoelectric material.