石墨烯/n-GaAs肖特基结太阳能电池的分析建模与设计优化

IF 1.5 4区 工程技术 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Photonics for Energy Pub Date : 2022-04-01 DOI:10.1117/1.JPE.12.025502
Md Azmot Ullah Khan, Naheem Olakunle Adesina, Jian Xu
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引用次数: 1

摘要

摘要一个基于物理的分析模型对于理解任何创新材料异质结构的工艺参数的工作机理都是非常重要的。我们提出了一个分析模型来计算基于石墨烯和III-V直接带隙半导体的太阳能电池的功率转换效率。该模型综合了从生成和重组过程中获得的几个电流密度。此外,为了获得高效的肖特基结太阳能电池,我们提出了一种具有晶格匹配钝化层和载流子选择层的石墨烯/砷化镓的优化结构。该结构具有表面钝化和光子循环的优点,分别减少了界面复合和确保了更多的电子-空穴对的产生。通过分析模型模拟,该方法的理论效率为18%,并利用SCAPS 1D软件进行了数值模拟。该分析模型不仅可以更好地了解太阳能电池的运行情况,还可以对它们进行比较研究,以便在未来实现更好的效率。此外,拟议结构效率的提高将鼓励这一研究领域的进一步研究。
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Analytical modeling and design optimization of a graphene/n-GaAs Schottky junction solar cell
Abstract. A physics-based analytical model is important to understand the working mechanism through process parameters of any innovative material heterostructure. We present an analytical model to calculate the power conversion efficiency of solar cells based on graphene and III-V direct bandgap semiconductors. The model is comprehensively developed by incorporating several current densities obtained from both the generation and recombination processes. Moreover, to obtain a highly efficient Schottky junction solar cell, we propose an optimized structure of graphene/GaAs with lattice-matched passivation and carrier selective layers. The structure has the advantage of surface passivation and photon recycling that reduces interface recombination and ensures more electron–hole pair generation, respectively. It exhibits a theoretical efficiency of >18  %   from the analytical model simulation which is later verified by numerical simulation using SCAPS 1D software. The analytical model will provide not only a better understanding of the solar cells’ operation but also a comparative study among them to achieve better efficiency in the future. In addition, the enhanced efficiency of the proposed structure will encourage further research in this field of study.
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来源期刊
Journal of Photonics for Energy
Journal of Photonics for Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS
CiteScore
3.20
自引率
5.90%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Journal of Photonics for Energy publishes peer-reviewed papers covering fundamental and applied research areas focused on the applications of photonics for renewable energy harvesting, conversion, storage, distribution, monitoring, consumption, and efficient usage.
期刊最新文献
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