无镉铜铟镓硒太阳能电池模拟研究：通过背表面电场机制最大限度地减少重组损耗以提高效率

IF 2.1 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2024-09-12 DOI:10.1016/j.ssc.2024.115694

Alok Kumar , Sushama M. Giripunje , Alok Kumar Patel , Shivani Gohri

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引用次数: 0

摘要

与传统的第一代技术相比，薄膜光伏电池具有重量轻、灵活性强、发电成本低等优点。在薄膜技术中，卤化物太阳能电池具有良好的效率和成熟的技术。本研究利用 SCAPS-1D 对 Al/FTO/SnS2/CIGS/CuO/Ni 太阳能电池设备结构进行了研究。此外，通过加入背表面电场（BSF）层，转换效率从 18.93% 提高到 29.88%，VOC 为 0.96 V，JSC 为 37.07 mA cm-2，FF 为 83.71%。器件性能的提高归功于 BSF 层通过形成准欧姆接触（即结电阻相对于器件总电阻可忽略不计的金属-半导体接触）降低了背面重组速度，并提供了额外的空穴隧穿活动。在整个研究工作中，作者研究了多个因素，如表面重组速度、温度影响、前后接触金属功函数、寄生电阻影响、镓比例和掺杂密度对 CIGS 太阳能电池的影响。本文提出了一种利用 CuO 背表面场机制生产高效、环保 CIGS 太阳能电池的新方法。

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Simulation study of cadmium-free CIGS solar cell for efficiency enhancement by minimizing recombination losses through back surface field mechanism

Thin-film photovoltaic cells provide benefits over conventional first-generation technology, including lighter weight, greater flexibility, and lower power generation costs. Chalcogenide solar cells offer good efficiency and technological maturity among thin-film technology. In this work, a solar cell device structure, Al/FTO/SnS₂/CIGS/CuO/Ni, is examined using SCAPS-1D. Further, by incorporating the back surface field (BSF) layer, the conversion efficiency increased from 18.93 % to 29.88 %, followed by V_OC of 0.96 V, J_SC of 37.07 mA cm⁻², and FF of 83.71 %. This increment in device performance is owing to the lowering back surface recombination velocity and the additional hole tunnelling activity offered by the BSF layer by forming a quasi-ohmic contact, i.e. metal-semiconductor contact with negligible junction resistance relative to the total resistance of the device. Throughout this research work, the authors studied several factors such as surface recombination velocity, temperature impact, front and back contact metal work functions, parasitic resistance impact, gallium proportion, and doping density impact on CIGS solar cells. The work also included a calibration with experimental data from published sources to validate the simulation results.

This paper presents a new approach for producing high-efficiency, eco-friendly CIGS solar cells with CuO back surface field mechanism.

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.