Upgrading Spiro-OMeTAD with β-Chloroethylcarbazole to Improve the Stability of Perovskite Solar Cells

IF 18.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2024-12-11 DOI:10.1021/acsenergylett.4c0250710.1021/acsenergylett.4c02507

Jialin Wang, Haizhou Lu*, Yuhang Liu, Pengyang Wang, Sanlong Wang, Xiyue Dong, Ying Zhao, Yongsheng Liu*, Michael Grätzel* and Xiaodan Zhang*,

{"title":"Upgrading Spiro-OMeTAD with β-Chloroethylcarbazole to Improve the Stability of Perovskite Solar Cells","authors":"Jialin Wang, Haizhou Lu*, Yuhang Liu, Pengyang Wang, Sanlong Wang, Xiyue Dong, Ying Zhao, Yongsheng Liu*, Michael Grätzel* and Xiaodan Zhang*, ","doi":"10.1021/acsenergylett.4c0250710.1021/acsenergylett.4c02507","DOIUrl":null,"url":null,"abstract":"<p >Spiro-OMeTAD has served as a crucial hole transporting material (HTM) in the advancement of efficient perovskite solar cells (PSCs). However, the diminished thermal stability of lithium-doped Spiro-OMeTAD (Li-Spiro) has been a limiting factor, leading to a significant decline of the power conversion efficiency (PCE) and stability, particularly at a temperature exceeding 65 °C. Here, we report an upgraded HTM, Spiro-OMeCzCl, by incorporating chloroethyl-modified carbazole units to expand the conjugated area of the donor group. This novel configuration significantly enhances the thermal stability and film quality. The resulting PSCs utilizing Spiro-OMeCzCl achieved a high PCE of 24.6%, coupled with exceptional long-term stability. The target cells maintained approximately 95% of their initial PCE after 57 days under a nitrogen atmosphere. Importantly, in subsequent thermal stability tests involving a gradual temperature increase, the cells sustained an average PCE of over 85% after 200 h at temperatures ranging from 60 to 90 °C.</p>","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 1","pages":"69–77 69–77"},"PeriodicalIF":18.2000,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Energy Letters ","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsenergylett.4c02507","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Spiro-OMeTAD has served as a crucial hole transporting material (HTM) in the advancement of efficient perovskite solar cells (PSCs). However, the diminished thermal stability of lithium-doped Spiro-OMeTAD (Li-Spiro) has been a limiting factor, leading to a significant decline of the power conversion efficiency (PCE) and stability, particularly at a temperature exceeding 65 °C. Here, we report an upgraded HTM, Spiro-OMeCzCl, by incorporating chloroethyl-modified carbazole units to expand the conjugated area of the donor group. This novel configuration significantly enhances the thermal stability and film quality. The resulting PSCs utilizing Spiro-OMeCzCl achieved a high PCE of 24.6%, coupled with exceptional long-term stability. The target cells maintained approximately 95% of their initial PCE after 57 days under a nitrogen atmosphere. Importantly, in subsequent thermal stability tests involving a gradual temperature increase, the cells sustained an average PCE of over 85% after 200 h at temperatures ranging from 60 to 90 °C.

Abstract Image

查看原文本刊更多论文

β-氯乙基咔唑对Spiro-OMeTAD的改性提高钙钛矿太阳能电池的稳定性

Spiro-OMeTAD在高效钙钛矿太阳能电池（PSCs）的发展中起到了重要的空穴传输材料（HTM）的作用。然而，掺杂锂的Spiro-OMeTAD （Li-Spiro）的热稳定性下降是一个限制因素，导致功率转换效率（PCE）和稳定性显著下降，特别是在温度超过65℃时。在这里，我们报道了一种升级的HTM， Spiro-OMeCzCl，通过加入氯乙基修饰的咔唑单元来扩大供体基团的共轭面积。这种新颖的结构显著提高了热稳定性和薄膜质量。使用Spiro-OMeCzCl的psc获得了24.6%的高PCE，并且具有出色的长期稳定性。在氮气环境下57天后，靶细胞维持了大约95%的初始PCE。重要的是，在随后的温度逐渐升高的热稳定性测试中，在60至90℃的温度范围内，电池在200小时后的平均PCE保持在85%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.