Journal
SMALL METHODS
Volume 5, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.202100493
Keywords
furan; furan derivatives; organic photovoltaics; polymer solar cells; renewable resources
Funding
- National Natural Science Foundation of China (NSFC) [21774003]
- Beijing Natural Science Foundation [2212032]
- Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences, Beijing Municipal Science & Technology Commission [Z181100004418012]
- Beihang University Youth Talent Support Program
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Furan and its derivatives, such as benzofuran and benzodifuran, have been recognized as essential components in organic solar cells due to their excellent semiconducting properties. Researchers have increasingly focused on furan-based materials for their advantages in terms of solubility, stacking, rigidity, and fluorescence. This has led to a systematic understanding of the relationships between molecular structures, optoelectronic properties, and photovoltaic performances, ultimately driving the development of new organic semiconductor materials.
The state-of-the-art bulk-heterojunction (BHJ)-type organic solar cells (OSCs) have exhibited power conversion efficiencies (PCEs) of exceeding 18%. Thereinto, thiophene and its fused-ring derivatives play significant roles in facilitating the development of OSCs due to their excellent semiconducting natures. Furan as thiophene analogue, is a ubiquitous motif in naturally occurring organic compounds. Driven by the advantages of furan, such as less steric hindrance, good solubility, excellent stacking, strong rigidity and fluorescence, biomass derived fractions, more and more research groups focus on the furan-based materials for using in OSCs in the past decade. To systematically understand the developments of furan-based photovoltaic materials, the relationships between the molecular structures, optoelectronic properties, and photovoltaic performances for the furan-based semiconductor materials including single furan, benzofuran, benzodifuran (BDF) (containing thienobenzofuran (TBF)), naphthodifurans (NDF), and polycyclic furan are summarized. Finally, the empirical regularities and perspectives of the development of this kind of new organic semiconductor materials are extracted.
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