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Cited by 218

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P-Type Polymer-Hybridized High-Performance Piezoelectric Nanogenerators

Lee, Keun Young, Kumar, Brijesh, Seo, Ju-Seok, Kim, Kwon-Ho, Sohn, Jung Inn, Cha, Seung Nam, Choi, Dukhyun, Wang, Zhong Lin, Kim, Sang-Woo·2012·Nano Letters

Abstract

Enhancing the output power of a nanogenerator is essential in applications as a sustainable power source for wireless sensors and microelectronics. We report here a novel approach that greatly enhances piezoelectric power generation by introducing a p-type polymer layer on a piezoelectric semiconducting thin film. Holes at the film surface greatly reduce the piezoelectric potential screening effect caused by free electrons in a piezoelectric semiconducting material. Furthermore, additional carriers from a conducting polymer and a shift in the Fermi level help in increasing the power output. Poly(3-hexylthiophene) (P3HT) was used as a p-type polymer on piezoelectric semiconducting zinc oxide (ZnO) thin film, and phenyl-C(61)-butyric acid methyl ester (PCBM) was added to P3HT to improve carrier transport. The ZnO/P3HT:PCBM-assembled piezoelectric power generator demonstrated 18-fold enhancement in the output voltage and tripled the current, relative to a power generator with ZnO only at a strain of 0.068%. The overall output power density exceeded 0.88 W/cm(3), and the average power conversion efficiency was up to 18%. This high power generation enabled red, green, and blue light-emitting diodes to turn on after only tens of times bending the generator. This approach offers a breakthrough in realizing a high-performance flexible piezoelectric energy harvester for self-powered electronics.

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Metadata

Authors
Lee, K. Y., Kumar, B., Seo, J.-S., Kim, K.-H., Sohn, J. I., Cha, S. N., Choi, D., Wang, Z. L., & Kim, S.-W.
Venue
Nano Letters
Published
2012-03-16
Volume
12
Issue
4
Pages
1959-1964
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2098538899
Cited by
218
References
2
FWCI
12.38
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: P-Type Polymer-Hybridized High-Performance Piezoelectric Nanogenerators. https://app.cochat.ai/papers/10.1021/nl204440g
The paper
Lee, K. Y., Kumar, B., Seo, J.-S., Kim, K.-H., Sohn, J. I., Cha, S. N., Choi, D., Wang, Z. L., & Kim, S.-W. (2012). P-Type Polymer-Hybridized High-Performance Piezoelectric Nanogenerators. Nano Letters. https://doi.org/10.1021/nl204440g

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