Significant enhancement of the output voltage of piezoelectric/triboelectric hybrid nanogenerators based on MAPbBr3 single crystals embedded into a porous PVDF matrix
- Authors
- Lee, Yong Hun; Kim, Dae Hun; Kim, Youngjin; Shabbir, Irfan; Li, Mingjun; Yoo, Keon Ho; Kim, Tae Whan
- Issue Date
- Nov-2022
- Publisher
- ELSEVIER
- Keywords
- Hybrid nanogenerator; Piezoelectric; triboelectric; Porous PVDF matrix; MAPbBr 3 single crystal
- Citation
- NANO ENERGY, v.102, pp.1 - 15
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO ENERGY
- Volume
- 102
- Start Page
- 1
- End Page
- 15
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171434
- DOI
- 10.1016/j.nanoen.2022.107676
- ISSN
- 2211-2855
- Abstract
- Methylammonium lead tribromide (MAPbBr3) single crystals (SCs)-polyvinylidene fluoride (PVDF) nanocomposites (NCs) are fabricated by using a simple sol-gel method. Uniform MAPbBr3 SCs are successfully embedded in a porous PVDF matrix to effect a synergism between an enhanced piezoelectric effect and enhanced charge accumulation. A piezoelectric/triboelectric hybrid nanogenerator (HNG) is fabricated utilizing the MAPbBr3 SCs-PVDF NCs as a dielectric layer in a triboelectric nanogenerator (TENG), and its performance is compared with that of a piezoelectric nanogenerator (PENG) based on MAPbBr3-PVDF NCs. The HNG based on the MAPbBr3 SCs-PVDF NCs showed the highest output voltage, 256 V, which is 3.87 times higher than that of the PENG based on the same NCs. The power density (16.17 mA/cm2) of the HNG based on MAPbBr3 SCs-PVDF NCs is approximately 200 times larger than that of the PENG based on the same NCs. This enhancement of the performance of HNG based on the MAPbBr3 SCs-PVDF NCs can be attributed to the very large tribo-piezoelectric coupling efficiency due to the existence of the MAPbBr3 SCs uniformly formed in the porous PVDF matrix.
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