DataVXACS Applied Electronic MaterialsPaper
journal article·2021-05-25

Flexible Piezoelectric Nanogenerators Based on P(VDF-TrFE)/CsPbBr3 Quantum Dot Composite Films

Jiajia Nie, Laipan Zhu, Wenchao Zhai, Andy Berbille, Linlin Li, Zhong Lin Wang

ACS Applied Electronic Materials· Volume 3· Issue 5
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Source abstract

Abstract

Benefiting from high flexibility and lightweight characteristics, flexible piezoelectric nanogenerators (PENGs) have the potential to become a ubiquitously available and sustainable alternative source of energy. Herein, we fabricated a poly(vinylidene fluoride–trifluoroethylene) (P(VDF-TrFE)) PENG doped with CsPbBr3 quantum dots (QDs), which reveals a remarkable enhancement in piezoelectric output performance. PENGs doped with 0.3 wt % of CsPbBr3 QDs exhibit an optimized piezoelectric coefficient from 15.5 to 24.5 pC N–1, and the corresponding open-circuit voltage and short-circuit current are enhanced by 2.5 and 2.2 times, respectively, thanks to the increased β-phase content of the P(VDF-TrFE). The composite PENGs are sensitive to several human movements like bending, finger touch, and wind blowing, showing great potential for application in self-powered sensing and energy harvesting. Moreover, fatigue test under continuous mechanical stimuli, and after long periods of rest (up to 2 months), demonstrates the PENG capabilities to be used as a robust mechanical energy harvester.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsComposites

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Innovative Energy Harvesting Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, P. R. China

CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, P. R. China

School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China

CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China

School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States

Funding

Ministry of Science and Technology of the People's Republic of China · Beijing Municipal Science and Technology Commission · National Natural Science Foundation of China · The World Academy of Sciences · Chinese Academy of Sciences

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