Emerging Strategies toward Mechanically Robust Organic Photovoltaics: Focus on Active Layer

Cenqi Yan, Jiaqiang Qin, Yinghan Wang, Gang Li, Pei Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Mechanical stability of organic photovoltaics (OPVs) is required not just for portable applications, which must accommodate strain as a function of operation, but also for manufacturing, transportation, and utility-scale applications. However, the mechanical reliability of OPVs is often disregarded compared with other stress (thermal, oxygen, moisture, irradiation). The key to improving the mechanical stability of OPVs lies in realizing mechanically robust active layers. This perspective first analyzes working scenarios of flexible OPVs (static and dynamic conditions) and strategies toward achieving mechanically robust active layers. Then, the recent achievements in improving the mechanical robustness of active layers are summarized in the aspects of all-polymer active layers, single-component active layers, and third component strategies. In the end, an outlook and perspective on the future of the field are provided to help improve the mechanical stability of active layers.

Original languageEnglish
Article number2201087
Pages (from-to)1-15
Number of pages15
JournalAdvanced Energy Materials
DOIs
Publication statusPublished - May 2022

Keywords

  • active layers
  • mechanically durable
  • mechanically robust
  • organic photovoltaics
  • stability

ASJC Scopus subject areas

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

Cite this