首页|Role of novel carbon-oxygen-bridged Z-shaped non-fullerene acceptors for high efficiency organic solar cells
Role of novel carbon-oxygen-bridged Z-shaped non-fullerene acceptors for high efficiency organic solar cells
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NSTL
Elsevier
? 2022 Elsevier B.V.The development of small molecule-based (SMs) organic photovoltaic (PV) materials is under intense attention by the researchers for organic solar cells (OSCs) to constantly revise their power conversion efficiencies (PCEs). Therefore, we have designed a series of Z-shaped non-fullerene acceptors (NFAs) (SNAA1-SNAA6), and characterized them theoretically for the possible use of in efficient OSCs devices. We have designed this Z-shaped series after employing several end-capped modifications over reference molecule (COi5DFIC (R)) to enhance their photovoltaic parameters further. We have extensively characterized these Z-shaped NFAs and explored their optoelectronic, photovoltaic and structure-property relationship with density functional theory (DFT) and time-dependent (TD-DFT). As a result, this Z-shaped NFA series (SNAA1-SNAA6) showed attractive narrower bandgaps (Eg) compared to parent molecule R, and all are extremely red-shifted in the UV-Visible absorption spectrum. Moreover, we have also performed a complex study of donor:acceptor (D:A) blend (SNAA1:PTB7-Th) to show their compatibility in fabricating highly efficient OSCs devices.
End-capped engineeringNon-fullerene acceptorsOpen-circuit voltagesOrganic solar cellsZ-shaped materials
Hussain R.、Nawab S.、Khan M.U.、Adnan M.、Lim J.、Khalid M.、Irshad Z.、Ayub K.
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Department of Chemistry University of Okara
Graduate School of Energy Science and Technology Chungnam National University
Institute of Chemistry Khwaja Fareed University of Engineering & Information Technology
NSTL
Elsevier
