一石三鸟:磺胺酸铵掺杂SnO2构建高效界面

IF 6 3区 工程技术 Q2 ENERGY & FUELS
Solar RRL Pub Date : 2025-01-15 DOI:10.1002/solr.202400648
Yu Li, Le Liu, Yilin Chang, Zhiwei Ma, Zhibin Yu, Ling Bai, Jiajia Du, Yao Yao, Qinglin Du, Yutongyang Fu, Bin Huang, Li Jiang, Tonggang Jiu
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引用次数: 0

摘要

界面工程在优化钙钛矿太阳能电池(PSCs)器件性能中起着至关重要的作用。本文采用“一石三鸟”的策略,将磺胺酸铵(ASA)作为多功能添加剂引入SnO2电子传递层(ETL)。首先,将ASA加入到SnO2胶体分散体中,有效地减少了SnO2纳米颗粒表面引起电荷重组的氧空位和羟基配体。其次,ASA中阴离子(SO3−)与SnO2的配位键以及ASA中阴离子(NH2)与Pb2+的相互作用在ETL/钙钛矿界面上构建了化学桥接。它显著增强了界面电子传递。第三,ASA的引入有利于形成高质量的钙钛矿薄膜,晶粒尺寸更大,由于埋藏界面的优化,结晶度提高。因此,通过在接口和本体上的集成效应,基于asa的器件将效率从20.73%提高到24.41%。此外,ASA优化后的器件在可控的N2气氛下1000 h后,其原始功率转换效率保持在90%以上,表明稳定性得到了显著增强。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Three Birds with One Stone: Construction of Highly Efficient Interfaces via Ammonium Sulfamate Doping SnO2

Three Birds with One Stone: Construction of Highly Efficient Interfaces via Ammonium Sulfamate Doping SnO2

Interface engineering plays a crucial part in optimizing the device performance in perovskite solar cells (PSCs). Herein, ammonium sulfamate (ASA) is introduced as a multifunctional additive into SnO2 electron transport layer (ETL) with a “three birds with one stone” strategy. At first, the oxygen vacancy and hydroxyl ligand on the surface of SnO2 nanoparticles causing charge recombination is efficiently reduced by incorporating ASA into SnO2 colloidal dispersion. Second, the coordination bond of SO3 anion in ASA with SnO2 and the interaction between NH2 in ASA with Pb2+ construct a chemical bridging at the interface of ETL/perovskite. It significantly enhances the interfacial electron transport. Third, the introduction of ASA is conducive to form high-quality perovskite films with larger crystallite size and improved crystallinity due to the optimization of buried interface. Consequently, by the integrated effects on both interfaces and the bulk, the ASA-based device delivers an increased efficiency from 20.73% to 24.41%. Moreover, the ASA optimized device displays a remarkable retention of over 90% of its original power conversion efficiency after 1000 h under a controlled N2 atmosphere, demonstrating the stability is significantly enhanced.

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来源期刊
Solar RRL
Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
12.10
自引率
6.30%
发文量
460
期刊介绍: Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.
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