无铅三吸收层全过氧化物太阳能电池中无电荷传输层的设计与模拟研究。

IF 4.1 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Frontiers of Optoelectronics Pub Date : 2024-06-11 DOI:10.1007/s12200-024-00119-1
Guangdong Li, Mingxiang Xu, Zhong Chen
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引用次数: 0

摘要

无电荷传输层(CTLs-free)的多吸收层包晶石太阳能电池(PSCs)因其简化的结构和良好的光电特性引起了广泛的研究兴趣。在这种情况下,我们利用 wxAMPS 仿真软件对无电荷传输层反转 PSCs 的新颖设计进行了数值模拟,并获得了 14.8834% 的高功率转换效率 (PCE)。这归功于 PSCs 的创新结构有利于更多空穴的高效传输和萃取,与 PSCs 的两层吸收体结构相比,MASnI3 的细长带隙将吸收光谱扩展到了近红外外围。此外,采用 p 型-Cs3Bi2I9/p-type-MASnI3/n-type-Cs2TiBr6 结构的器件性能优于采用 p 型-Cs3Bi2I9/n-type-MASnI3/n-type-Cs2TiBr6 结构的器件,因为吸收层内的载流子重组更少,载流子寿命更长。模拟结果表明,Cs2TiF6 双包晶材料是最佳选择。此外,较厚的 MASnI3 吸收层厚度(0.4 微米)可获得 21.4530% 的出色 PCE。最后,优化后的包晶掺杂密度约为 E15 cm3(Cs3Bi2I9)、E18 cm3(MASnI3)和 1.5E19 cm3(Cs2TiBr6),可制造出最高性能的光伏器件(28.6193%)。这项工作表明,所提出的具有多吸收层的无 CTLs PSCs 将为光电器件的前瞻性应用提供相关参考。
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Design and simulation investigations on charge transport layers-free in lead-free three absorber layer all-perovskite solar cells.

The multiple absorber layer perovskite solar cells (PSCs) with charge transport layers-free (CTLs-free) have drawn widespread research interest due to their simplified architecture and promising photoelectric characteristics. Under the circumstances, the novel design of CTLs-free inversion PSCs with stable and nontoxic three absorber layers (triple Cs3Bi2I9, single MASnI3, double Cs2TiBr6) as optical-harvester has been numerically simulated by utilizing wxAMPS simulation software and achieved high power conversion efficiency (PCE) of 14.8834%. This is owing to the innovative architecture of PSCs favors efficient transport and extraction of more holes and the slender band gap MASnI3 extends the absorption spectrum to the near-infrared periphery compared with the two absorber layers architecture of PSCs. Moreover, the performance of the device with p-type-Cs3Bi2I9/p-type-MASnI3/n-type-Cs2TiBr6 architecture is superior to the one with the p-type-Cs3Bi2I9/n-type-MASnI3/n-type-Cs2TiBr6 architecture due to less carrier recombination and higher carrier life time inside the absorber layers. The simulation results reveal that Cs2TiF6 double perovskite material stands out as the best alternative. Additionally, an excellent PCE of 21.4530% can be obtained with the thicker MASnI3 absorber layer thickness (0.4 µm). Lastly, the highest-performance photovoltaic devices (28.6193%) can be created with the optimized perovskite doping density of around E15 cm3 (Cs3Bi2I9), E18 cm3 (MASnI3), and 1.5E19 cm3 (Cs2TiBr6). This work manifests that the proposed CTLs-free PSCs with multi-absorber layers shall be a relevant reference for forward applications in electro-optical and optoelectronic devices.

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来源期刊
Frontiers of Optoelectronics
Frontiers of Optoelectronics ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
7.80
自引率
0.00%
发文量
583
期刊介绍: Frontiers of Optoelectronics seeks to provide a multidisciplinary forum for a broad mix of peer-reviewed academic papers in order to promote rapid communication and exchange between researchers in China and abroad. It introduces and reflects significant achievements being made in the field of photonics or optoelectronics. The topics include, but are not limited to, semiconductor optoelectronics, nano-photonics, information photonics, energy photonics, ultrafast photonics, biomedical photonics, nonlinear photonics, fiber optics, laser and terahertz technology and intelligent photonics. The journal publishes reviews, research articles, letters, comments, special issues and so on. Frontiers of Optoelectronics especially encourages papers from new emerging and multidisciplinary areas, papers reflecting the international trends of research and development, and on special topics reporting progress made in the field of optoelectronics. All published papers will reflect the original thoughts of researchers and practitioners on basic theories, design and new technology in optoelectronics. Frontiers of Optoelectronics is strictly peer-reviewed and only accepts original submissions in English. It is a fully OA journal and the APCs are covered by Higher Education Press and Huazhong University of Science and Technology. ● Presents the latest developments in optoelectronics and optics ● Emphasizes the latest developments of new optoelectronic materials, devices, systems and applications ● Covers industrial photonics, information photonics, biomedical photonics, energy photonics, laser and terahertz technology, and more
期刊最新文献
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