Enhanced CZTSSe Thin‐Film Solar Cell Efficiency: Key Parameter Analysis

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi A-applications and Materials Science Pub Date : 2024-08-28 DOI:10.1002/pssa.202400332

Loumafak Hafaifa, Mostefa Maache, Selma Rabhi, Zehor Allam, Zineb Ibtissem Gouchida, Yazid Benbouzid, Achouak Zebeir, Razika Adjouz

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引用次数: 0

Abstract

This work presents a numerical simulation study on CZTSSe‐based thin‐film solar cells using Silvaco Atlas software, focusing on optimization and loss analysis. Starting from an initial power conversion efficiency of 12.73%, the ZnO/CdS/CZTSSe cell structure is systematically optimized. Through precise adjustment of layer thickness and doping density, the efficiency is improved to 18.75%. The optimal parameters are 2.5 μm (1017 cm−3) for CZTSSe, 0.01 μm (1018 cm−3) for CdS, and 0.02 μm (1019 cm−3) for ZnO. Loss analysis reveals that increasing CZTSSe thickness beyond 2.5 μm leads to higher bulk series resistance, while thicker CdS and ZnO layers reduce photocurrent generation. Doping density significantly impacts open‐circuit voltage, while layer thickness primarily affects short‐circuit current and fill factor. Performance improves at lower temperatures, achieving 22.2% efficiency at 250 K. These findings provide valuable insights for developing high‐efficiency CZTSSe solar cells.

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增强型 CZTSSe 薄膜太阳能电池效率：关键参数分析

本研究利用 Silvaco Atlas 软件对基于 CZTSSe 的薄膜太阳能电池进行了数值模拟研究，重点是优化和损耗分析。从 12.73% 的初始功率转换效率开始，对 ZnO/CdS/CZTSSe 电池结构进行了系统优化。通过精确调整层厚度和掺杂密度，效率提高到 18.75%。最佳参数为：CZTSSe 2.5 μm（1017 cm-3），CdS 0.01 μm（1018 cm-3），ZnO 0.02 μm（1019 cm-3）。损耗分析表明，将 CZTSSe 厚度增加到 2.5 μm 以上会导致较高的体串联电阻，而较厚的 CdS 和 ZnO 层会减少光电流的产生。掺杂密度对开路电压有重大影响，而层厚度则主要影响短路电流和填充因子。这些发现为开发高效 CZTSSe 太阳能电池提供了宝贵的见解。

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.