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High-efficiency and low-cost photovoltaic (PV) technology is considered a top choice toward achieving net-zero carbon dioxide emissions - carbon neutrality. In this Chapter, latest technologies in crystalline silicon (c-Si) PV and the underlined physics and device principles are reviewed. A critical step to achieve high efficiency in c-Si PV is the effective passivation of carrier recombination centres (e.g., dangling bonds) at the surfaces and interfaces, often using silicon-based thin film layers. Based on different approaches to accomplish the passivation, various device structures, such as silicon heterojunction (SHJ) and tunnel oxide passivated contact (TOPCon), are developed and optimized. Other devices structures, including passivated emitter and rear contact (PERC), interdigitated back contact (IBC), combinations of these structures such as TBC, HBC, THBC, and tandem device using perovskite top cell on top of a c-Si bottom cell, are also reviewed and discussed.

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Application of Silicon-Based Thin Films in High-Efficiency Silicon Solar Cells for Carbon Neutrality

  • 章节

  • 发表日期：

    2025年

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  • Zhengping Li,
  • Dong Ding,
  • Sheng Ma,
  • Xunming Deng,
  • Wenzhong Shen

摘要

High-efficiency and low-cost photovoltaic (PV) technology is considered a top choice toward achieving net-zero carbon dioxide emissions - carbon neutrality. In this Chapter, latest technologies in crystalline silicon (c-Si) PV and the underlined physics and device principles are reviewed. A critical step to achieve high efficiency in c-Si PV is the effective passivation of carrier recombination centres (e.g., dangling bonds) at the surfaces and interfaces, often using silicon-based thin film layers. Based on different approaches to accomplish the passivation, various device structures, such as silicon heterojunction (SHJ) and tunnel oxide passivated contact (TOPCon), are developed and optimized. Other devices structures, including passivated emitter and rear contact (PERC), interdigitated back contact (IBC), combinations of these structures such as TBC, HBC, THBC, and tandem device using perovskite top cell on top of a c-Si bottom cell, are also reviewed and discussed.