Innovative Application of Photochromic Molecules in Inorganic Perovskite Solar Cells: Simultaneous Refinement in Performance and Environmental Sustainability

IF 24.4 1区 材料科学 Q1 CHEMISTRY, PHYSICAL
Tianxiang Zhou, Wenshi Zhao, Zhiteng Wang, Rui Li, Xiaolong Feng, Yachao Du, Lei Liu, Junqi Zhang, Guiyong Yin, Kuo Wang, Hongcan Yu, Yang Liu, Qingwen Tian, Shengzhong (Frank) Liu
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引用次数: 0

Abstract

Most strategies only focus on passivating dynamic defects on the surfaces of perovskite films or addressing Pb leakage issues separately, lacking comprehensive solutions. In view of this, photochromic compound 1,3,3-trimethylindolinonaphthospirooxazine (SO) and its photoisomerization product (MC) are innovatively introduced into inorganic perovskite solar cells (IPSCs). Under light irradiation, the distinctive transformation characteristics of photoisomeric molecules are leveraged to effectively and continuously passivate dynamic defects. Meanwhile, ring-opening MC structure provides two anchoring sites, which form a stable chelating ring with undercoordinated Pb2+, thereby mitigating the risk of Pb leakage. Both theoretical analyses and experimental findings indicate that MC molecules expose more active sites due to their open molecular structure under illumination, thus tightly binding to undercoordinated ions (I and Pb2+) in films. The MC passivation treatment exhibits an impressive power conversion efficiency (PCE) of 22.04%, while also improving hydrophobicity, UV resistance, and biocompatibility of films. This approach not only presents a new perspective for boosting performance and stability of IPSCs but also takes an important step toward promoting their development in environmental friendliness and sustainability.

Abstract Image

光致变色分子在无机钙钛矿太阳能电池中的创新应用:性能和环境可持续性的同步改进
大多数策略只侧重于钝化包晶薄膜表面的动态缺陷或单独解决铅泄漏问题,缺乏全面的解决方案。有鉴于此,光致变色化合物 1,3,3-三甲基吲哚萘螺嗪(SO)及其光异构化产物(MC)被创新性地引入到无机包晶太阳能电池(IPSC)中。在光照射下,光异构分子的独特转化特性可有效、持续地钝化动态缺陷。同时,开环 MC 结构提供了两个锚定位点,与配位不足的 Pb2+ 形成稳定的螯合环,从而降低了 Pb 泄漏的风险。理论分析和实验结果都表明,在光照下,MC 分子因其开放的分子结构而暴露出更多的活性位点,从而与薄膜中的欠配位离子(I- 和 Pb2+)紧密结合。MC 钝化处理的功率转换效率 (PCE) 高达 22.04%,同时还改善了薄膜的疏水性、抗紫外线能力和生物相容性。这种方法不仅为提高 IPSC 的性能和稳定性提供了一个新的视角,而且为促进 IPSC 在环境友好性和可持续性方面的发展迈出了重要的一步。
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来源期刊
Advanced Energy Materials
Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
41.90
自引率
4.00%
发文量
889
审稿时长
1.4 months
期刊介绍: Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.
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