Improved ultraviolet resistant through the natural antioxidants in efficient perovskite photovoltaics

IF 3.1 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-06-04 DOI:10.1016/j.cap.2025.05.014

Xueyuan Li , Yaru Du , Niqian Du , Shanshan Du , Tianxiao Liu , Kaikai Liu , Zhiyong Liu

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Abstract

Perovskite solar cells (PSCs) have attracted much attention due to their excellent photoelectric properties. However, the instability of perovskites limits its development, which resulted by degradation derived from oxygen and ultraviolet light. Herein, the contain conjugated double bonds and natural antioxidant layer provided by β-carotene and astaxanthin could constitute ligand bonds with Pb²⁺ in the form of Lewis acid-base interactions and eliminate UV-induced free radicals during photoaging process, which passivate the surface defects and improve the crystal quality of perovskite films, improving operational stability of PSCs. The optimized PSCs arrive a champion power conversion efficiency (PCE) of 23.56 %, maintaining 88 % of the original PCE after continuous operating 140 h under UV illumination state and 89 % of the original PCE after 2400 h of operation in air environment condition. This work provides a general strategy for improving the stability of PSCs.

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通过在高效钙钛矿光伏电池中添加天然抗氧化剂来提高其抗紫外线性能

钙钛矿太阳能电池（PSCs）因其优异的光电性能而备受关注。然而，由于氧和紫外光的降解，钙钛矿的不稳定性限制了其发展。其中，β-胡萝卜素和虾青素所提供的含共轭双键和天然抗氧化层可以与Pb2+以Lewis酸碱相互作用的形式形成配体键，消除光老化过程中紫外线诱导的自由基，钝化钙钛矿膜的表面缺陷，提高钙钛矿膜的晶体质量，提高PSCs的操作稳定性。优化后的PSCs功率转换效率（PCE）达到了23.56%，在紫外光照射下连续工作140 h， PCE保持在原功率转换效率的88%；在空气环境下连续工作2400 h， PCE保持在原功率转换效率的89%。这项工作为提高psc的稳定性提供了一种通用策略。

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.