期刊
POLYMERS
卷 14, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/polym14173610
关键词
bulk-heterojunction; polymer; solar cell; PEDOT; PSS; PTB7; PCBM; ITO; Zn(O; S); ZnSe; PFN-Br; SCAPS-1D
In this study, a relatively novel polymer solar cell with different electron transport layers was proposed and tested for photovoltaic responses. The ITO/Zn(O,S)/PTB7:PC70BM/PEDOT:PSS/Au device showed the highest power conversion efficiency.
Bulk-heterojunction (BHJ) polymer solar cells have received a great deal of attention mainly due to the possibility of higher power conversion efficiency for photovoltaic applications. Therefore, in this study, relatively novel polymer BHJ solar cells are proposed (ITO/ETL/PTB7:PC70BM/PEDOT:PSS/Au) with various electron transport layers (ETL) such as zinc oxysulfide (Zn(O,S)), zinc selenide (ZnSe), and poly[(9,9-bis(3 '-((N,N-dimethyl)-N-ethylammonium)-propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] dibromide (PFN-Br). Here, each ETL material is selected based on the energy bandgap compatibility with ITO as well as the PTB7:PC70BM active layer and is based on other physical properties, which are generally required for efficient photovoltaic responses. Each proposed device is comprehensively optimized and then photovoltaic responses are simulated and compared using the software SCAPS-1D. It was observed that the ITO/Zn(O,S)/PTB7:PC70BM/PEDOT:PSS/Au device offered the highest power-conversion efficiency of up to 17.15% with an open-circuit voltage of 0.85 volts, a short-circuit current of 28.23 mA/cm(2), and a fill factor of 70.69%.
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