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

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
DOIs
Publication statusPublished - Jun 2022

Keywords

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

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this