Recent Progress in Indacenodithiophene-Based Acceptor Materials for Non-Fullerene Organic Solar Cells

Rashid Ilmi, Houda Al-Sharji, Muhammad S. Khan

Research output: Contribution to journalReview articlepeer-review

Abstract

Domesticating solar energy by exploiting photovoltaic technology has become a quintessential strategy for future global energy production. Since 2015, non-fullerene organic solar cells (NF-OSC) have attracted a great deal of attention owing to the marvellous properties of non-fullerene acceptors (NFA) such as structural versability, broad absorption, suitable energy levels, tunable charge transport and morphology, leading to remarkable accomplishments in power conversion efficiency (PCE) from 1% to nearly 20%. One class of materials is provided by the fused ring aromatic indacenodithiophene (IDT) and its derivatives, which are emerging continuously as promising next-generation building blocks to construct high performance photovoltaic materials. Encouraging PCEs of more than 15% have been achieved in their binary NF-OSCs, while careful device engineering and proper amalgamation of a third component have led to PCEs of almost 18% in ternary devices. This review surveys recent developments in the area of IDT-based materials for photovoltaic applications. Different strategies to develop efficient IDT-based NFA and factors influencing the bandgaps, molecular energy levels, charge transport properties, and film morphologies, as well as the photovoltaic performance of these materials, are discussed. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish
Article number18
JournalTopics in Current Chemistry
Volume380
Issue number3
DOIs
Publication statusPublished - May 2022

Keywords

  • Bulk heterojunction
  • Indacenodithiophene
  • Non-fullerene acceptor
  • Power conversion efficiency
  • Solar cell
  • Ternary solar cells

ASJC Scopus subject areas

  • Chemistry(all)

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