Abstract III-V nanostructure-based solar cells (SCs), with remarkable performance improvement in recent years, are considered as promising candidates for next-generation photovoltaics. In this paper, we present a simulation study of a new structure of PEDOT:PSS/InP truncated nanopyramid (TNP) Hybrid Solar Cell (HSC) using a finite difference time domain (FDTD) method. In the TNP-HSC, the nanopyramids (NPs) are flattened from the top to increase the photon capturing capability and then the TNPs are coated with PEDOT:PSS to enhance the light absorption in the long-wavelength region of solar spectral irradiance. Besides, to delineate the mechanism of photo-absorption enhancement in the proposed structure, a rigorous analysis of the electric field and photo-generation rate profiles at different wavelengths is performed. The simulation results show that the PEDOT:PSS coated of InP TNP exhibits better performance than uncoated InP NP SCs or planar counterpart. In addition, the optimization of the geometrical parameters of InP TNPs, including period, lattice constant, top surface flatness, and coating thickness, leads to the power conversion efficiency of 24.73%, which is 1.8 times greater than its planar counterpart.

中文翻译：

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具有 PE​​DOT 保形涂层的 InP 基截断纳米锥太阳能电池的设计：用于提高光收集效率的 PSS

摘要 基于 III-V 族纳米结构的太阳能电池 (SCs) 近年来性能显着提高，被认为是下一代光伏的有希望的候选者。在本文中，我们使用有限差分时域 (FDTD) 方法对 PEDOT:PSS/InP 截断纳米锥 (TNP) 混合太阳能电池 (HSC) 的新结构进行了模拟研究。在 TNP-HSC 中，纳米锥体 (NPs) 从顶部变平以增加光子捕获能力，然后在 TNPs 上涂上 PEDOT:PSS 以增强太阳光谱辐照度长波长区域的光吸收。此外，为了描述所提出结构中光吸收增强的机制，对不同波长下的电场和光发生率分布进行了严格的分析。模拟结果表明，InP TNP 涂层的 PEDOT:PSS 表现出比未涂层 InP NP SCs 或平面对应物更好的性能。此外，优化 InP TNPs 的几何参数，包括周期、晶格常数、顶面平坦度和涂层厚度，使功率转换效率达到 24.73%，是其平面对应物的 1.8 倍。