Heterojunction Engineering Enhanced Self-Polarization of PVDF/CsPbBr₃ /Ti₃ C₂ T_x Composite Fiber for Ultra-High Voltage Piezoelectric Nanogenerator.

ABSTRACT: Piezoelectric nanogenerator (PENG) for practical application is constrained by low output and difficult polarization. In this work, a kind of flexible PENG with high output and self-polarization is fabricated by constructing CsPbBr₃ -Ti₃ C₂ T_x heterojunctions in PVDF fiber. The polarized charges rapidly migrate to the electrodes from the Ti₃ C₂ T_x nanosheets by forming heterojunctions, achieving the maximum utilization of polarized charges and leading to enhanced piezoelectric output macroscopically. Optimally, PVDF/4wt%CsPbBr₃ /0.6wt%Ti₃ C₂ T_x -PENG exhibits an excellent voltage output of 160 V under self-polarization conditions, which is higher than other self-polarize

SUBMITTER: Xue Y 

PROVIDER: S-EPMC10288227 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature