Ozurumba Anthony C, Ogueke Nnamdi V, Madu Chinyere A, Danladi Eli, Mbachu Chisom P, Yusuf Abubakar S, Gyuk Philibus M, Hossain Ismail
Africa Center of Excellence in Future Energies and Electrochemical Systems, Federal University of Technology, Owerri, Imo State, Nigeria.
Department of Mechanical Engineering, Federal University of Technology, Owerri, Imo State, Nigeria.
Heliyon. 2024 Apr 15;10(8):e29599. doi: 10.1016/j.heliyon.2024.e29599. eCollection 2024 Apr 30.
Photovoltaic technology has been widely recognized as a means to advance green energy solutions in the sub-Saharan region. In the real-time operation of solar modules, temperature plays a crucial role, making it necessary to evaluate the thermal impact on the performance of the solar devices, especially in high-insolation environments. Hence, this paper investigates the effect of operating temperature on the performance of two types of organometallic halide perovskites (OHP) - formamidinium tin iodide (FASnI) and methylammonium lead iodide (MAPbI). The solar cells were evaluated under a typical Nigerian climate in two different cities before and after graphene passivation. Using a one-dimensional solar capacitance simulation software (SCAPS-1D) program, the simulation results show that graphene passivation improved the conversion efficiency of the solar cells by 0.51 % (FASnI device) and 3.11 % (MAPbI device). The presence of graphene played a vital role in resisting charge recombination and metal diffusion, which are responsible for the losses in OHP. Thermal analysis revealed that the MAPbI device exhibited an increased fill factor (FF) in the temperature range of 20-64 °C, increasing the power conversion efficiency (PCE). This ensured that the MAPbI solar cell performed better in the city and the season with harsher thermal conditions (Kaduna, dry season). Thus, MAPbI solar cells can thrive excellently in environments where the operating temperature is below 65 °C. Overall, this study shows that the application of OHP devices in sub-Saharan climatic conditions is empirically possible with the right material modification.
光伏技术已被广泛认为是推动撒哈拉以南地区绿色能源解决方案的一种手段。在太阳能模块的实时运行中，温度起着至关重要的作用，因此有必要评估热对太阳能设备性能的影响，特别是在高日照环境中。因此，本文研究了工作温度对两种有机金属卤化物钙钛矿（OHP）——甲脒锡碘化物（FASnI）和甲基铵碘化铅（MAPbI）性能的影响。在石墨烯钝化前后，在尼日利亚两个不同城市的典型气候条件下对太阳能电池进行了评估。使用一维太阳能电容模拟软件（SCAPS-1D）程序，模拟结果表明，石墨烯钝化使太阳能电池的转换效率提高了0.51%（FASnI器件）和3.11%（MAPbI器件）。石墨烯的存在在抵抗电荷复合和金属扩散方面起着至关重要的作用，而电荷复合和金属扩散是导致OHP损失的原因。热分析表明，MAPbI器件在20-64°C的温度范围内填充因子（FF）增加，功率转换效率（PCE）提高。这确保了MAPbI太阳能电池在热条件更恶劣的城市和季节（卡杜纳，旱季）表现更好。因此，MAPbI太阳能电池在工作温度低于65°C的环境中可以出色地运行。总体而言，这项研究表明，通过正确的材料改性，OHP器件在撒哈拉以南气候条件下的应用在经验上是可行的。
