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人工晶体学报 ›› 2025, Vol. 54 ›› Issue (12): 2060-2071.DOI: 10.16553/j.cnki.issn1000-985x.2025.0199

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TBC太阳电池技术研究进展

高嘉庆1(), 屈小勇1, 吴翔1, 郭永刚1, 伍伟雄2, 张博1, 魏凯峰1   

  1. 1.青海黄河上游水电开发有限责任公司西安太阳能电力分公司,西安 710010
    2.贵州北盘江电力股份有限公司马马崖分公司,安顺 561000
  • 收稿日期:2025-09-12 出版日期:2025-12-20 发布日期:2026-01-04
  • 作者简介:高嘉庆(1993—),男,陕西省人,硕士,工程师。E-mail:gaojiaqing1120@163.com
  • 基金资助:
    高效低衰减TBC电池结构设计及关键技术开发(KY-C-2025-GF07)

Research Progress on TBC Solar Cell Technology

GAO Jiaqing1(), QU Xiaoyong1, WU Xiang1, GUO Yonggang1, WU Weixiong2, ZHANG Bo1, WEI Kaifeng1   

  1. 1. Xi’an Solar Power Branch,Qinghai Huanghe Hydropower Development Co. ,Ltd. ,Xi’an 710100,China
    2. Ma Ma Ya Branch,Guizhou Beipanjiang Electric Power Co. ,Ltd. ,Anshun 561000,China
  • Received:2025-09-12 Online:2025-12-20 Published:2026-01-04

摘要: 隧穿氧化钝化背接触(TBC)太阳电池作为第三代高效晶硅光伏技术的代表,深度融合了TOPCon技术的优异界面钝化特性与背接触(IBC)电池的零正面遮光优势,显著降低了光吸收损失与载流子复合,推动实验室转换效率逼近28%。本文系统阐述了TBC电池的核心结构原理与技术特点,重点分析了其在光学性能、钝化性能和接触性能方面的突破机制,详细介绍了背面图形化设计、钝化接触结构制备、金属化工艺等关键制备技术。同时,综述了TBC技术的演进历程与最新研究进展,指出其在产业化过程中面临的工艺复杂度高、双面率提升、成本控制及供应链配套等挑战,以期为后续技术优化与规模化应用提供参考依据。

关键词: TBC太阳电池; 结构设计; 制备工艺; 产业化进展

Abstract: As a representative of the third-generation high-efficiency crystalline silicon photovoltaic technology, the tunnel oxide passivated back contact (TBC) solar cells deeply integrate the superior interface passivation characteristics of TOPCon technology with the zero front-side shading advantage of interdigitated back contact (IBC) cells, significantly reducing optical absorption losses and carrier recombination, thereby leading to laboratory conversion efficiencies approaching 28%. This paper systematically elaborates on the core structural principles and technical features of TBC cells, with a focused analysis of the breakthrough mechanisms in their optical, passivation, and contact properties. It provides a detailed introduction to key fabrication processes, including back-side patterning design, passivating contact structure fabrication, and metallization techniques. Furthermore, the paper reviews the evolution and latest research progress of TBC technology, while also addressing the challenges faced in its industrialization, such as high process complexity, the need for improved bifaciality, cost control and supply chain maturation, thereby offering valuable insights for subsequent technological optimization and large-scale application.

Key words: TBC solar cell; structural design; preparation process; industrialization progress

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