Methylammonium lead iodide (MAPbI3) is a kind of perovskite material, which can effectively absorb photons in sunlight, with an adjustable band gap and relatively stable performance. Aiming at the problem of photoelectric conversion efficiency of perovskite solar cells, this paper proposes a perovskite solar cell with MAPbI3 as an absorption layer. The device structure adopts a trans structure with good stability and low cost, and the hole transport layer adopts poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate(PEDOT:PSS) material, which has good electrical properties and interface properties, and has certain transparency. The electron transport layer adopts tin oxide (SnO2), and its energy band structure is beneficial to carrier transport, and it has excellent electron transport performance and chemical stability, which makes it a material for the electron transport layer. The top electrode and the bottom electrode are made of indium tin oxide (ITO) and aurum (Au) with high reliability respectively. The thickness, band gap, and defect concentration of the battery are simulated by solar cell capacitance simulator (SCAPS) software. The results show that the thickness and band gap of the absorption layer has great influence on the performance of the battery. The open‐circuit voltage, short‐circuit current density, filling factor and photoelectric conversion efficiency of the optimized perovskite solar cell reached 1.219 V, 30.1641 mA cm−2, 70.14%, and 25.78% respectively.

中文翻译：

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基于MAPbI3的钙钛矿太阳能电池性能优化研究

甲基碘化铅铵 (MAPbI3）是一种钙钛矿材料，能有效吸收太阳光中的光子，带隙可调，性能相对稳定。针对钙钛矿太阳能电池的光电转换效率问题，本文提出了一种MAPbI钙钛矿太阳能电池3作为吸收层。该器件结构采用稳定性好、成本低廉的反式结构，空穴传输层采用聚(3,4-乙撑二氧噻吩):聚苯乙烯磺酸(PEDOT:PSS)材料，具有良好的电性能和界面性能，具有一定的电性能和界面性能。透明度。电子传输层采用氧化锡（SnO2），其能带结构有利于载流子传输，并且具有优异的电子传输性能和化学稳定性，这使其成为电子传输层的材料。顶部电极和底部电极分别由可靠性高的氧化铟锡（ITO）和金（Au）制成。通过太阳能电池电容模拟器（SCAPS）软件模拟电池的厚度、带隙和缺陷浓度。结果表明，吸收层的厚度和带隙对电池的性能影响很大。优化后的钙钛矿太阳能电池的开路电压、短路电流密度、填充因子和光电转换效率达到1.219 V、30.1641 mA cm−2、70.14%、25.78%。