Analysis and impact of impurity defects on efficiency and stability of mass-produced cast monocrystalline silicon wafers and solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-07-31 DOI:10.1016/j.solmat.2025.113877

Guixiu Li , Shuai Yuan , Dongli Hu , Yunfei Xu , Liang He , Xijia Luo , Hongrong Chen , Zhenchao Hong , Lei Yang , Lei Wang , Fei Wang , Sensen Zhi , Fengming Zhang , Shenglang Zhou , Huali Zhang , Chen Wang , Jianmin Li , Da You , Xuegong Yu , Deren Yang

{"title":"Analysis and impact of impurity defects on efficiency and stability of mass-produced cast monocrystalline silicon wafers and solar cells","authors":"Guixiu Li , Shuai Yuan , Dongli Hu , Yunfei Xu , Liang He , Xijia Luo , Hongrong Chen , Zhenchao Hong , Lei Yang , Lei Wang , Fei Wang , Sensen Zhi , Fengming Zhang , Shenglang Zhou , Huali Zhang , Chen Wang , Jianmin Li , Da You , Xuegong Yu , Deren Yang","doi":"10.1016/j.solmat.2025.113877","DOIUrl":null,"url":null,"abstract":"<div><div>Cast monocrystalline silicon (CM-Si), produced via a low-cost, low-carbon-emission casting method, accommodates low-purity silicon feedstock but faces challenges in controlling high-concentration impurities and defects. Prior studies lack comprehensive assessments of defect distribution and their effects across entire ingots. This study characterizes impurity defects in CM-Si ingots, fabricating over 3000 low-cost, high-efficiency metal wrap through passivated emitter and rear contact solar cells to quantify the impact of defects on performance degradation. We analyzed defect influence on cell stability through photoluminescence, electroluminescence, and root-cause investigations. Over 70 % of CM-Si cells approach Czochralski silicon efficiencies, yet dislocation clusters drive a notable low-efficiency tail. This work highlights key barriers to CM-Si adoption and guides future improvements in defect management for enhanced photovoltaic competitiveness.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113877"},"PeriodicalIF":6.3000,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy Materials and Solar Cells","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927024825004787","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Cast monocrystalline silicon (CM-Si), produced via a low-cost, low-carbon-emission casting method, accommodates low-purity silicon feedstock but faces challenges in controlling high-concentration impurities and defects. Prior studies lack comprehensive assessments of defect distribution and their effects across entire ingots. This study characterizes impurity defects in CM-Si ingots, fabricating over 3000 low-cost, high-efficiency metal wrap through passivated emitter and rear contact solar cells to quantify the impact of defects on performance degradation. We analyzed defect influence on cell stability through photoluminescence, electroluminescence, and root-cause investigations. Over 70 % of CM-Si cells approach Czochralski silicon efficiencies, yet dislocation clusters drive a notable low-efficiency tail. This work highlights key barriers to CM-Si adoption and guides future improvements in defect management for enhanced photovoltaic competitiveness.

查看原文本刊更多论文

杂质缺陷对量产铸造单晶硅片和太阳能电池效率和稳定性的影响及分析

铸造单晶硅（CM-Si）是一种低成本、低碳排放的铸造方法，适用于低纯度的硅原料，但在控制高浓度杂质和缺陷方面面临挑战。先前的研究缺乏对缺陷分布及其对整个铸锭的影响的全面评估。本研究表征了CM-Si铸锭中的杂质缺陷，通过钝化发射极和后接触太阳能电池制造了3000多个低成本、高效率的金属包裹层，以量化缺陷对性能退化的影响。我们通过光致发光、电致发光和根本原因调查分析了缺陷对细胞稳定性的影响。超过70%的CM-Si电池接近Czochralski硅效率，但位错团簇驱动显著的低效率尾部。这项工作强调了CM-Si采用的主要障碍，并指导未来改进缺陷管理以增强光伏竞争力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.