Study and Optimization of a New Perovskite Solar Cell Structure Based on the Two Absorber Materials Cs2TiBr6 and MASnBr3 Using SCAPS 1D

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-24 DOI:10.3311/ppch.36825

K. Dris, Mostefa Benhaliliba

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Abstract

The main objective of this study is to optimize the photovoltaic parameters of a new perovskite solar cell structure (PSC) suggested, using the simulator solar cell capacitance simulator-one dimension (SCAPS-1D) which aims to improve its performance by adjusting different key variables. This new suggested cell which consists of six materials represents the major innovation point of our research, it is distinguished by a double active layer, composed of the two-cesium titanium hexabromide (Cs2TiBr6) and methylammonium tin tribromide (MASnBr3) perovskites. Using the SCAPS 1D software, the simulation allows to determine the optimal values of the various parameters to maximize the efficiency of the PSC. First, the effect of the thickness and defect densities of both Cs2TiBr6 and MASnBr3 materials on the output parameters was studied as well as the defect density in the interfaces. Subsequently, the doping density in Cs2TiBr6 and MASnBr3 was also optimized. Finally, the impact of temperature, series resistance and shunt resistance were evidenced. The results indicate that precise adjustments of these parameters can lead to significant improvements in photovoltaic performance, such as open circuit voltage of 1.105 V, short-circuit current density of 33.90 mA cm−2, fill factor of 88.01% and power conversion efficiency (PCE) 32.96%. These performances were obtained for a thickness of 700 nm for Cs2TiBr6 and 900 nm for MASnBr3, a defect density of 1014 cm−3 for each absorber layer, a defect density of 1014 cm−2 for each interface and a doping density of the order of 1018 cm−3 for each absorbent layer.

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利用 SCAPS 1D 研究和优化基于 Cs2TiBr6 和 MASnBr3 两种吸收材料的新型 Perovskite 太阳能电池结构

本研究的主要目的是利用太阳能电池电容模拟器一维（SCAPS-1D）优化一种新型过氧化物太阳能电池结构（PSC）的光伏参数，旨在通过调整不同的关键变量来提高其性能。这种由六种材料组成的新电池是我们研究的主要创新点，其特点是由双铯六溴化钛（Cs2TiBr6）和三溴化锡甲基铵（MASnBr3）包晶组成的双活性层。通过使用 SCAPS 1D 软件进行模拟，可以确定各种参数的最佳值，从而最大限度地提高 PSC 的效率。首先，研究了 Cs2TiBr6 和 MASnBr3 材料的厚度和缺陷密度对输出参数以及界面缺陷密度的影响。随后，还优化了 Cs2TiBr6 和 MASnBr3 的掺杂密度。最后，证明了温度、串联电阻和并联电阻的影响。结果表明，精确调整这些参数可显著提高光伏性能，如开路电压为 1.105 V，短路电流密度为 33.90 mA cm-2，填充因子为 88.01%，功率转换效率（PCE）为 32.96%。这些性能是在 Cs2TiBr6 厚度为 700 nm，MASnBr3 厚度为 900 nm，每个吸收层的缺陷密度为 1014 cm-3，每个界面的缺陷密度为 1014 cm-2，每个吸收层的掺杂密度为 1018 cm-3 的条件下获得的。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.