Moiz Syed Abdul, Alshaikh Mohammed Saleh, Alahmadi Ahmed N M
Device Simulation Laboratory, Department of Electrical Engineering, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah 21955, Saudi Arabia.
Polymers (Basel). 2023 Nov 11;15(22):4387. doi: 10.3390/polym15224387.
Significant progress has been made in the advancement of perovskite solar cells, but their commercialization remains hindered by their lead-based toxicity. Many non-toxic perovskite-based solar cells have demonstrated potential, such as CsAgBiSbBr, but their power conversion efficiency is inadequate. To address this issue, some researchers are focusing on emerging acceptor-donor-acceptor'-donor-acceptor (A-DA'D-A)-type non-fullerene acceptors (NFAs) for CsAgBiSbBr to find effective electron transport layers for high-performance photovoltaic responses with low voltage drops. In this comparative study, four novel A-DA'D-A-type NFAs, BT-LIC, BT-BIC, BT-L4F, and BT-BO-L4F, were used as electron transport layers (ETLs) for the proposed devices, FTO/PEDOT:PSS/CsAgBiSbBr/ETL/Au. Comprehensive simulations were conducted to optimize the devices. The simulations showed that all optimized devices exhibit photovoltaic responses, with the BT-BIC device having the highest power conversion efficiency (13.2%) and the BT-LIC device having the lowest (6.8%). The BT-BIC as an ETL provides fewer interfacial traps and better band alignment, enabling greater open-circuit voltage for efficient photovoltaic responses.
钙钛矿太阳能电池在技术进步方面取得了重大进展，但其商业化仍受到铅基毒性的阻碍。许多无毒的钙钛矿基太阳能电池已展现出潜力，如CsAgBiSbBr，但它们的功率转换效率仍不足。为解决这一问题，一些研究人员专注于新兴的受体-给体-受体'-给体-受体（A-DA'D-A）型非富勒烯受体（NFA）用于CsAgBiSbBr，以寻找具有低电压降的高效光伏响应的有效电子传输层。在这项对比研究中，四种新型A-DA'D-A型NFA，即BT-LIC、BT-BIC、BT-L4F和BT-BO-L4F，被用作所提出器件FTO/PEDOT:PSS/CsAgBiSbBr/ETL/Au的电子传输层（ETL）。进行了全面的模拟以优化这些器件。模拟结果表明，所有优化后的器件均表现出光伏响应，其中BT-BIC器件的功率转换效率最高（13.2%），而BT-LIC器件最低（6.8%）。BT-BIC作为ETL提供了更少的界面陷阱和更好的能带排列，从而实现更高的开路电压以实现高效的光伏响应。
