Tandem Self-Powered Flexible Electrochromic Energy Supplier for Sustainable All-Day Operations

  • Jiaming Huang
  • , Zhiwei Ren
  • , Yaokang Zhang
  • , Patrick Wai Keung Fong
  • , Hrisheekesh Thachoth Chandran
  • , Qiong Liang
  • , Kuanming Yao
  • , Hua Tang
  • , Hao Xia
  • , Hengkai Zhang
  • , Xinge Yu
  • , Zijian Zheng
  • , Gang Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

Self-powered wearable energy suppliers are highly desirable for next-generation smart electronic microsystems. However, it is still challenging to achieve an all-day operating self-powered energy device via the tandem integration strategy. Herein, a tandem self-powered flexible energy supplier (SPFES) is proposed to “harvest and store” energy from sunlight (outdoor), dim-light (indoor), and human body motion. In this novel device design, two flexible transparent electrodes are shared by three functional components: organic photovoltaic, triboelectric nanogenerator, and electrochromic supercapacitor. Interestingly, the SPFES shows distinctive in-built features including energy indication, self-modulation, and self-protection. When compared to mechanically stacked devices, the SPFES avoids unnecessary encapsulation and external connections, resulting in a thinner device with a higher power-to-weight ratio (up to 110%). The concept of the SPFES paves an elegant route toward designing multi-functional flexible energy-harvest-storage devices for all-day operational wearable applications.

Original languageEnglish
Article number2201042
Pages (from-to)1-11
Number of pages11
JournalAdvanced Energy Materials
Volume12
Issue number30
DOIs
Publication statusPublished - Jun 2022

Keywords

  • energy suppliers
  • flexible
  • monolithic
  • self-powered
  • sustainable

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

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