推进钙钛矿太阳能电池:提高效率和稳定性的无机CCTS空穴传输材料

IF 2.4 3区 化学 Q4 CHEMISTRY, PHYSICAL
Fahriye Sari , Sultan Suleyman Ozel , Adem Sarilmaz , Faruk Ozel , Mahmut Kus , Mustafa Ersoz
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引用次数: 0

摘要

产生可再生能源的最有效方法之一是使用环境可持续材料将光子有效地转化为电能。近年来,将具有石墨烯样半导体特性和高载流子迁移率的硫系化合物材料集成到钙钛矿太阳能电池(PSCs)中,以提高这些器件的性能、稳定性和环保性,引起了人们的极大关注。在本研究中,我们合成了Cu₂CoSnS₄(CCTS)纳米晶体,并将其用作倒置psc的全无机空穴传输层(HTL)。含有6 vol% CCTS的器件实现了10.07%的功率转换效率(PCE),并且在无封装的惰性存储条件下720小时后保持了93%的初始效率。这表明与传统的基于pss的PEDOT设备相比,稳定性有了显著提高。优化后的CCTS HTL具有更好的能级对准,减少水分进入,增强电荷输运。这些发现表明,CCTS是一种很有前途的无机html候选材料,可用于制备高效、稳定的PSCs。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Advancing perovskite solar cells: Inorganic CCTS hole-transporting material for enhanced efficiency and stability
One of the most effective methods for generating renewable energy is the efficient conversion of photons into electrical energy using environmentally sustainable materials. In recent years, the integration of chalcogenide materials, which exhibit graphene-like semiconducting properties and high charge carrier mobility, into perovskite solar cells (PSCs) has garnered significant attention for enhancing the performance, stability, and eco-friendly nature of these devices. In this study, Cu₂CoSnS₄ (CCTS) nanocrystals were synthesized and utilized as a fully inorganic hole transport layer (HTL) in inverted PSCs. Devices incorporating 6 vol% CCTS achieved a power conversion efficiency (PCE) of 10.07 %, and retained 93 % of their initial efficiency after 720 h under inert storage conditions, without encapsulation. This demonstrates a notable improvement in stability compared to conventional PEDOT: PSS-based devices. The optimized CCTS HTL provided better energy level alignment, reduced moisture ingress, and enhanced charge transport. These findings indicate that CCTS is a promising inorganic HTL candidate for efficient and stable PSCs.
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来源期刊
Chemical Physics
Chemical Physics 化学-物理:原子、分子和化学物理
CiteScore
4.60
自引率
4.30%
发文量
278
审稿时长
39 days
期刊介绍: Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.
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