What question did this study set out to answer?

The aim is to develop a strategy for preventing electrode corrosion while maintaining the stability of perovskite solar cells.

February 28, 2026Scientia Sinica Chimica0 citationsOpen Access

Inhibiting electrode corrosion via defects anchoring spatial confinement strategy for enhancing the stability of inverted perovskite solar cells

HGHaodan Guo YWYang Wang KZKun Zhang

Key Points

The aim is to develop a strategy for preventing electrode corrosion while maintaining the stability of perovskite solar cells.
Introduced defect anchoring spatial confinement strategy.
Utilized diethyl dithiocarbamate zinc (ZETC) as an anti-solvent additive.
Constructed a Pb(ETC)2 interface layer at the perovskite/electron transport layer interface.
Achieved dual function of defect anchoring and material diffusion limitation.
Achieved a photovoltaic conversion efficiency of 26.91%.
Maintained 90% of initial efficiency after 1000 hours under one-sun illumination.
Retained 90% efficiency after 800 hours of exposure at 65°C under light.

Abstract

反式钙钛矿太阳能电池(PSCs)中金属电极腐蚀是导致器件本征稳定性衰减的关键诱因, 现有物理阻挡层与化学缓蚀剂等策略虽能抑制电极腐蚀, 却难以兼顾钙钛矿活性层的稳定性. 本研究提出“缺陷锚定式空间限域”策略, 以二乙基二硫代氨基甲酸锌(ZETC)为反溶剂添加剂, 在钙钛矿/电子传输层界面构建 Pb(ETC)2界面层. 该界面层通过给电子官能团(−NCS2)锚定钙钛矿表面未配位的 Pb缺陷, 同时作为阻挡层限制碘(I)相关物质扩散, 实现缺陷锚定与物质空间限域的双重作用. 实验结果表明, ZETC改性的器件光电转换效率达26.91%, 在1个太阳光照下连续运行1000 h(ISOS-L-1)和65 ℃光照下运行800 h(ISOS-L-2)后, 仍分别保持初始效率的90%, 为提升PSCs稳定性提供了兼顾界面优化与电极防腐的新方案.

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Cite This Study

Guo et al. (2026) studied this question.

synapsesocial.com/papers/69a286da0a974eb0d3c02275 https://doi.org/10.1360/ssc-2026-0020

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February 28, 2026Scientia Sinica Chimica0 citationsOpen Access

Inhibiting electrode corrosion via defects anchoring spatial confinement strategy for enhancing the stability of inverted perovskite solar cells

HGHaodan Guo YWYang Wang KZKun Zhang

Key Points

The aim is to develop a strategy for preventing electrode corrosion while maintaining the stability of perovskite solar cells.
Introduced defect anchoring spatial confinement strategy.
Utilized diethyl dithiocarbamate zinc (ZETC) as an anti-solvent additive.
Constructed a Pb(ETC)2 interface layer at the perovskite/electron transport layer interface.
Achieved dual function of defect anchoring and material diffusion limitation.
Achieved a photovoltaic conversion efficiency of 26.91%.
Maintained 90% of initial efficiency after 1000 hours under one-sun illumination.
Retained 90% efficiency after 800 hours of exposure at 65°C under light.

Abstract

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Cite This Study

Guo et al. (2026) studied this question.

synapsesocial.com/papers/69a286da0a974eb0d3c02275 https://doi.org/10.1360/ssc-2026-0020

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