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Fabrication of flexible nanogenerator with enhanced performance based on p-CuO/n-ZnO heterostructure

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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 ~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.

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Acknowledgments

This work was supported by the Fundamental Research Funds for the Central Universities (DUT14LK35), Foundation of Key laboratory for Micro/Nano Technology and System of Liaoning Province (20140405), and the Fundamental Research Funds for the Central Universities (DUT15LAB15).

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Authors and Affiliations

  1. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    Jixue Lei, Bing Yin, Yu Qiu, Heqiu Zhang, Yue Chang, Yingmin Luo, Yu Zhao & Lizhong Hu

  2. The Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, People’s Republic of China

    Jixue Lei, Bing Yin, Yu Qiu, Heqiu Zhang, Yue Chang & Lizhong Hu

  3. School of Information and Control Engineering, Liaoning Shihua University, Fushun, 113001, People’s Republic of China

    Jiuyu Ji

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  1. Jixue Lei
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  2. Bing Yin
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  3. Yu Qiu
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  4. Heqiu Zhang
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  7. Yu Zhao
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  9. Lizhong Hu
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Correspondence to Lizhong Hu.

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Lei, J., Yin, B., Qiu, Y. et al. Fabrication of flexible nanogenerator with enhanced performance based on p-CuO/n-ZnO heterostructure. J Mater Sci: Mater Electron 27, 1983–1987 (2016). https://doi.org/10.1007/s10854-015-3981-4

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  • DOI: https://doi.org/10.1007/s10854-015-3981-4

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