Perovskite Nanocrystals Induced Core-Shell Inorganic-Organic Nanofibers for Efficient Energy Harvesting and Self-Powered Monitoring

Chuanwei Zhi, Shuai Zhang, Hanbai Wu, Yang Ming, Shuo Shi, Weng-Fu Io, Shuo Meng, Yifan Si, Bin Fei, Jianhua Hao, Jinlian Hu*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

32 Citations (Scopus)
7 Downloads (CityUHK Scholars)

Abstract

The emerging field of wearable electronics requires power sources that are flexible, lightweight, high-capacity, durable, and comfortable for daily use, which enables extensive use in electronic skins, self-powered sensing, and physiological health monitoring. In this work, we developed the core-shell and biocompatible Cs2InCl5(H2O)@PVDF-HFP nanofibers (CIC@HFP NFs) by one-step electrospinning assisted self-assembly method for triboelectric nanogenerators (TENGs). By adopting lead-free Cs2InCl5(H2O) as an inducer, CIC@HFP NFs exhibited β-phase-enhanced and self-aligned nanocrystals within the uniaxial direction. The interface interaction was further investigated by experimental measurements and molecular dynamics, which revealed that the hydrogen bonds between Cs2InCl5(H2O) and PVDF-HFP induced automatically well-aligned dipoles and stabilized the β-phase in the CIC@HFP NFs. The TENG fabricated using CIC@HFP NFs and nylon-6,6 NFs exhibited significant improvement in output voltage (681 V), output current (53.1 μA) and peak power density (6.94 W m-2), with the highest reported output performance among TENGs based on halide-perovskites. The energy harvesting and self-powered monitoring performance were further substantiated by human motions, showcasing its ability to charge capacitors and effectively operate electronics such as commercial LEDs, stopwatches, and calculators, demonstrating its promising application in biomechanical energy harvesting and self-powered sensing.

© 2024 American Chemical Society.
Original languageEnglish
Pages (from-to)9365-9377
JournalACS Nano
Volume18
Issue number13
Online published22 Mar 2024
DOIs
Publication statusPublished - 2 Apr 2024

Funding

The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (NSFC) with the title of “Study of high performance fiber to be achieved by mimicking the hierarchical structure of spider-silk”, Grant No. 52073241; “Study of multi-responsive shapememory polyurethane nanocomposites inspired by natural fibers”, Grant No. 51673162; “Developing spider-silk-model artificial fibers by a chemical synthetic approach”, Grant No. 15201719; the Collaborative Research Fund with the title of “Fundamental StudyTowards Real Spider Dragline Silk Performance Through Artificial Innovative Approach”, Project No. 8730080; the Startup Grant of CityU with the title of “Laboratory of wearable materials for healthcare”, Grant No. 9380116); the Contract Research with the title of “Development of breathable fabrics with nano-electrospun membrane”, CityU ref.: 9231419.

Research Keywords

  • core−shell
  • electrospinning
  • hydrogen bond
  • perovskite
  • TENGs

Publisher's Copyright Statement

  • COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.3c09935.

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