Resistance dynamics in a solar cell with novel lead-free perovskite absorbers (LiMgI3 and NaMgI3): Performance optimization using SCAPS-1D simulation and impedance spectroscopy

IF 4.3 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physics and Chemistry of Solids Pub Date : 2025-06-23 DOI:10.1016/j.jpcs.2025.112972

Nabil Bouri , Tesfaye Abebe Geleta , Kefyalew Wagari Guji , Abdellah Hammad , Selma Rabhi , Khalid Nouneh

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Abstract

The lead-free perovskite is regarded as a significant advancement in the realm of safe, clean energy due to its prolonged stability. This development has led to a vast array of opportunities to fabricate optimal absorber layers that can achieve these objectives. The present study utilizes a novel lead-free perovskite as an absorber layer, employing compounds of LiMgI₃ and NaMgI₃ as promising materials for photovoltaic applications. This study enables an examination of the impact of the electronic affinity, thickness, and defect density of the absorber layers. It also enables an examination of the impact of interfacial defects. Furthermore, the utilization of alternative HTLs enables the identification of the most suitable one for our devices. Following this identification process, the back contact work function is investigated. Each effect studied is accompanied by an impedance spectroscopy analysis. By applying the optimized parameters identified in this study, the best performance was achieved. For LiMgI₃, the results include a Voc of 1.233 V, a Jsc of 33.43 mA/cm², a FF of 85.67 %, and a PCE of 35.31 %. Similarly, for NaMgI₃, the values obtained were 1.248 V for Voc, 33.25 mA/cm² for Jsc, 85.88 % for FF, and 35.62 % for PCE.

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具有新型无铅钙钛矿吸收剂（LiMgI3和NaMgI3）的太阳能电池的电阻动力学：使用SCAPS-1D模拟和阻抗谱进行性能优化

无铅钙钛矿因其持久的稳定性被认为是安全、清洁能源领域的重大进步。这一发展为制造能够实现这些目标的最佳吸收层提供了大量的机会。本研究利用一种新型无铅钙钛矿作为吸收层，采用LiMgI3和NaMgI3化合物作为光伏应用的有前途的材料。本研究能够检验吸收层的电子亲和力、厚度和缺陷密度的影响。它还可以检查界面缺陷的影响。此外，使用替代html可以识别最适合我们设备的html。在此识别过程之后，对背接触功函数进行了研究。所研究的每种效应都附有阻抗谱分析。通过应用本研究确定的优化参数，获得了最佳性能。对于LiMgI3，结果包括Voc为1.233 V， Jsc为33.43 mA/cm2， FF为85.67%，PCE为35.31%。同样，对于NaMgI3，得到的值为Voc为1.248 V， Jsc为33.25 mA/cm2， FF为85.88%，PCE为35.62%。

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来源期刊

Journal of Physics and Chemistry of Solids 工程技术-化学综合

CiteScore

7.80

自引率

2.50%

发文量

605

审稿时长

40 days

期刊介绍： The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.