Optimizing spectral and morphological match of nonfullerene acceptors toward efficient indoor organic photovoltaics with enhanced light source adaptability
نویسندگان
چکیده
High-performance indoor organic photovoltaics (IOPV) require large-bandgap material systems to absorb visible light efficiently and reduce energy loss. However, state-of-the-art non-fullerene acceptors (NFAs) have absorptions in the near-infrared region are thus not suitable for IOPV applications. Herein, we report a series of (>1.70 eV) NFAs named FCC-Cl-C8, FCC-Cl-4Ph FCC-Cl-6Ph by modifying alkyl side chains with alkylphenyl partially or completely. Results show that bulky can finely tune absorption properties also affect their morphological properties. Interestingly, best-performing NFA is one (named FCC-Cl-4Ph) partial substitutions, which blue-shift while minimizing negative effect chains. As result, achieve excellent efficiencies over 29% under 3000 K LED lamp at 1000 lux better solution processability FCC-Cl-C8. More importantly, maintain high performance (29.7–26.8% lux) wide range lighting spectra (2600, 3000, 4000, 6500 lamps), should be due blue-shifted matching various conditions. This work reveals an interesting structure-property relationship offers useful strategies further design toward efficient devices.
منابع مشابه
Photovoltaics: A Tetraperylene Diimides Based 3D Nonfullerene Acceptor for Efficient Organic Photovoltaics (Adv. Sci. 4/2015)
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ژورنال
عنوان ژورنال: Nano Energy
سال: 2022
ISSN: ['2211-3282', '2211-2855']
DOI: https://doi.org/10.1016/j.nanoen.2022.107281