Organic energy-harvesting devices achieving power conversion efficiencies over 20% under ambient indoor lighting

Ryota Arai, Seiichi Furukawa, Narumi Sato, Takuma Yasuda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The ability of solution-processed organic photovoltaics (OPVs) based on new small-molecule semiconductors, 1DTP-ID and 2DTP-ID, for indoor dim-light energy harvesting is reported. Indoor OPVs with the best performance achieve high power conversion efficiencies, over 20%, under white LED illumination at 200-2000 lx. Flexible OPV modules using 1DTP-ID with an active area of ∼10 cm2 are capable of delivering a maximum power output of ∼0.1 mW and an open-circuit voltage of ∼4 V even at 200 lx, ideal for use as dispersive self-sustainable power sources for the Internet of Things.

Original languageEnglish
Pages (from-to)20187-20192
Number of pages6
JournalJournal of Materials Chemistry A
Volume7
Issue number35
DOIs
Publication statusPublished - Jan 1 2019

All Science Journal Classification (ASJC) codes

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

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