Long-term stability in perovskite solar cells through atomic layer deposition of tin oxide

IF 44.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2024-10-10 DOI:10.1126/science.adq8385

Danpeng Gao, Bo Li, Qi Liu, Chunlei Zhang, Zexin Yu, Shuai Li, Jianqiu Gong, Liangchen Qian, Francesco Vanin, Kelly Schutt, Melissa A. Davis, Axel F. Palmstrom, Steven P. Harvey, Nicholas J. Long, Joseph M. Luther, Xiao Cheng Zeng, Zonglong Zhu

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引用次数: 0

Abstract

Robust contact schemes that boost stability and simplify the production process are needed for perovskite solar cells (PSCs). We codeposited perovskite and hole-selective contact while protecting the perovskite to enable deposition of SnO_x/Ag without the use of a fullerene. The SnO_x, prepared through atomic layer deposition, serves as a durable inorganic electron transport layer. Tailoring the oxygen vacancy defects in the SnO_x layer led to power conversion efficiencies (PCEs) of >25%. Our devices exhibit superior stability over conventional p-i-n PSCs, successfully meeting several benchmark stability tests. They retained >95% PCE after 2000 hours of continuous operation at their maximum power point under simulated AM1.5 illumination at 65°C. Additionally, they boast a certified T₉₇ lifetime exceeding 1000 hours.

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通过氧化锡原子层沉积实现过氧化物太阳能电池的长期稳定性。

过氧化物太阳能电池（PSC）需要既能提高稳定性又能简化生产工艺的可靠接触方案。我们在保护包晶的同时共沉积了包晶和空穴选择性接触，从而在不使用富勒烯的情况下实现了氧化锡/银的沉积。通过原子层沉积制备的氧化锡可作为持久的无机电子传输层。调整氧化锡层中的氧空位缺陷可使功率转换效率（PCE）大于 25%。与传统的 pi-n PSC 相比，我们的器件具有更高的稳定性，成功通过了多项基准稳定性测试。在 65°C 的模拟 AM1.5 照明条件下，器件在最大功率点连续工作 2000 小时后，PCE 仍保持在 95% 以上。此外，它们经认证的 T97 寿命超过 1000 小时。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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