通过在leco相容银浆中添加Al/Ga/ fe玻璃熔块来增强TOPCon太阳能电池的可靠性，防止酸腐蚀

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-06-10 DOI:10.1016/j.solmat.2025.113776

Shengqi Wang , Haidong Liu , Yiwei Ao , Kuninori Okamoto , Jiangtao Di

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引用次数: 0

摘要

激光增强接触优化（LECO）是提高隧道氧化物钝化接触（TOPCon）太阳能电池效率的一种有效技术。然而，为了确保TOPCon太阳能电池的可靠性和稳定性，迫切需要改进与leco兼容的银浆料。在此，我们研究了通过在导电银浆的无机玻璃熔块中引入铝、镓和铁等元素来优化玻璃的形成。此外，我们还研究了TOPCon太阳能电池在标准乙酸条件下的降解。与缺乏这些特殊元素的银浆相比，用添加了Al、Ga或Fe元素的玻璃熔块制作的银浆具有显著增强的抗醋酸腐蚀能力。添加Al/Ga/Fe添加剂的leco用银浆在醋酸作用下的效率损失可小于10%，甚至低至5%。相反，在不引入这些特殊元素的情况下，乙酸的降解效果可显著提高到50%以上。本研究为TOPCon太阳能电池提供了高度可靠的leco兼容银浆料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Strengthening TOPCon solar cell reliability via Al/Ga/Fe-added glass frits in LECO-compatible silver pastes against acid corrosion

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Strengthening TOPCon solar cell reliability via Al/Ga/Fe-added glass frits in LECO-compatible silver pastes against acid corrosion

Laser-enhanced contact optimization (LECO) emerges as a potent technique in enhancing the efficiency of tunnel oxide passivated contact (TOPCon) solar cells. Nevertheless, an urgent improvement in LECO-compatible silver pastes is required to ensure the reliability and stability of TOPCon solar cells. Herein, we studied optimizing glass formation by introducing elements such as aluminum, gallium, and iron into the inorganic glass frits of conductive silver pastes. Additionally, we examined the degradation of TOPCon solar cells under standard acetic acid conditions. The silver paste crafted with glass frits containing added Al, Ga, or Fe elements exhibits significantly enhanced resistance to acetic acid corrosion compared to silver paste lacking these special elements. The efficiency loss of LECO-used silver paste with Al/Ga/Fe additives during acetic acid exposure can be less than 10 %, and even as low as 5 %. In contrast, without the introduction of these special elements, the degradation effect of acetic acid can markedly increase to over 50 %. The present study offers highly reliable LECO-compatible silver pastes for TOPCon solar cells.

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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.