{"title":"Photovoltaic Enhancement Strategy of D-π-A Molecules in Printable Carbon-Based Perovskite Solar Cells","authors":"Yanzhong Hao, Jiazhuo Ma, Pandong Hao, Yanyan Shi, Haijun Lv, Wenjun Wu","doi":"10.1002/ente.202402318","DOIUrl":null,"url":null,"abstract":"<p>To surmount the performance limitations of printable mesoporous perovskite solar cells (<i>p</i>-MPSCs) caused by high defect densities during perovskite crystallization, this study introduces a new D-π-A small molecule additive. The molecule has a strong dipole moment and efficient charge transfer, with a triphenylamine donor, thiophene π-bridge, and rhodanine-N-acetic acid acceptor. It accelerates crystallization, passivates defects, and optimizes interactions with perovskite structures. Combined with suitable energy levels and loading concentration, it boosts the power conversion efficiency of <i>p</i>-MPSCs from 13.95 to 15.90%. This work expands the range of molecular additives and provides insights into designing high-performance materials for <i>p</i>-MPSCs.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 10","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy technology","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ente.202402318","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
To surmount the performance limitations of printable mesoporous perovskite solar cells (p-MPSCs) caused by high defect densities during perovskite crystallization, this study introduces a new D-π-A small molecule additive. The molecule has a strong dipole moment and efficient charge transfer, with a triphenylamine donor, thiophene π-bridge, and rhodanine-N-acetic acid acceptor. It accelerates crystallization, passivates defects, and optimizes interactions with perovskite structures. Combined with suitable energy levels and loading concentration, it boosts the power conversion efficiency of p-MPSCs from 13.95 to 15.90%. This work expands the range of molecular additives and provides insights into designing high-performance materials for p-MPSCs.
为了克服可打印介孔钙钛矿太阳能电池（p-MPSCs）在钙钛矿结晶过程中缺陷密度高所造成的性能限制，本研究引入了一种新的D-π-A小分子添加剂。该分子具有强偶极矩和高效的电荷转移，具有三苯胺供体、噻吩π桥和罗丹宁- n -乙酸受体。它加速结晶，钝化缺陷，并优化与钙钛矿结构的相互作用。结合合适的能级和负载浓度，将p-MPSCs的功率转换效率从13.95%提高到15.90%。这项工作扩大了分子添加剂的范围，并为设计p-MPSCs的高性能材料提供了见解。
期刊介绍：
Energy Technology provides a forum for researchers and engineers from all relevant disciplines concerned with the generation, conversion, storage, and distribution of energy.
This new journal shall publish articles covering all technical aspects of energy process engineering from different perspectives, e.g.,
new concepts of energy generation and conversion;
design, operation, control, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers;
improvement of existing processes;
combination of single components to systems for energy generation;
design of systems for energy storage;
production processes of fuels, e.g., hydrogen, electricity, petroleum, biobased fuels;
concepts and design of devices for energy distribution.
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