Moiz Syed Abdul, Alzahrani Mohammed Saleh, Alahmadi Ahmed N M
Device Simulation Lab, Department of Electrical Engineering, Umm Al-Qura University, Makkah 21955, Saudi Arabia.
Polymers (Basel). 2022 Sep 1;14(17):3610. doi: 10.3390/polym14173610.
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:PCBM/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:PCBM 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, and a fill factor of 70.69%.
体异质结（BHJ）聚合物太阳能电池备受关注，主要是因为其在光伏应用中具有实现更高功率转换效率的可能性。因此，在本研究中，提出了相对新颖的聚合物BHJ太阳能电池（ITO/电子传输层/PTB7:PCBM/PEDOT:PSS/Au），其中采用了各种电子传输层（ETL），如氧硫化锌（Zn(O,S)）、硒化锌（ZnSe）和聚[(9,9-双(3'-((N,N-二甲基)-N-乙基铵)-丙基)-2,7-芴)-alt-2,7-(9,9-二辛基芴)]二溴化物（PFN-Br）。在此，每种ETL材料的选择基于与ITO以及PTB7:PCBM活性层的能带隙兼容性，并基于高效光伏响应通常所需的其他物理性质。对每个提出的器件进行了全面优化，然后使用SCAPS-1D软件对光伏响应进行了模拟和比较。结果发现，ITO/Zn(O,S)/PTB7:PC70BM/PEDOT:PSS/Au器件的功率转换效率最高可达17.15%，开路电压为0.85伏，短路电流为28.23 mA/cm²，填充因子为70.69%。
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