Abstract
We present a simple, cost-effective, robust, and scalable approach for fabricating a nanogenerator that gives an output power strong enough to continuously drive a commercial liquid crystal display. Utilizing the conical shape of the as-grown ZnO nanowires, a nanogenerator is fabricated by simply dispersing them onto a flat polymer film to form a rational "composite" structure. It is suggested that the geometry induced unipolar assembly of the conical nanowires in such a composite structure results in a macroscopic piezoelectric potential across its thickness by introducing a mechanical deformation, which may be responsible for driving the flow of the inductive charges between the top and bottom electrodes. A compressive strain of 0.11% at a straining rate of 3.67% s(-1) produces an output voltage up to 2 V (equivalent open circuit voltage of 3.3 V). This is a practical and versatile technology with the potential for powering small size personal electronics.
Keywords
NanogeneratorNanowireMaterials scienceConical surfaceVoltagePiezoelectricityElectrodeNanotechnologyOptoelectronicsComposite materialElectrical engineeringChemistry
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Publication Info
- Year
- 2010
- Type
- article
- Volume
- 10
- Issue
- 12
- Pages
- 5025-5031
- Citations
- 258
- Access
- Closed
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Cite This
Youfan Hu,
Yan Zhang,
Chen Xu
et al.
(2010).
High-Output Nanogenerator by Rational Unipolar Assembly of Conical Nanowires and Its Application for Driving a Small Liquid Crystal Display.
Nano Letters
, 10
(12)
, 5025-5031.
https://doi.org/10.1021/nl103203u
Identifiers
- DOI
- 10.1021/nl103203u