Two-way implementation of graphene nanoflakes in perovskite solar cells

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-09-12 DOI:10.1016/j.solmat.2025.113918

Wei-Shiuan Tseng , Jun-Wei Liu , Zheng-Yue Jian , Mei-Hsin Chen

{"title":"Two-way implementation of graphene nanoflakes in perovskite solar cells","authors":"Wei-Shiuan Tseng , Jun-Wei Liu , Zheng-Yue Jian , Mei-Hsin Chen","doi":"10.1016/j.solmat.2025.113918","DOIUrl":null,"url":null,"abstract":"<div><div>Both the electron transport layer (ETL) and the hole transport layer (HTL) are critical for power conversion efficiency (PCE) and stability in inverted perovskite solar cells (PSCs). In recent years, graphene-related materials have been widely used as dopants for the ETL and HTL due to their numerous inherent superior properties. Common forms of graphene, such as reduced graphene oxide or graphene synthesized by high-temperature chemical vapor deposition (CVD), have demonstrated benefits for PSCs. However, a more ingenious implementation of high-quality graphene in PSCs is still awaiting further exploration. In this study, we conduct a comprehensive investigation of graphene nanoflakes (GNFs) grown using a plasma-enhanced CVD (PECVD) system to achieve dual functionality as a dopant in both the ETL and HTL. The GNFs can be synthesized using a relatively simple, clean, and efficient PECVD system compared to other graphene-related materials. More importantly, unlike in existing literature, the as-synthesized GNFs were incorporated into either NiO<sub>x</sub> (the HTL), PC<sub>61</sub>BM (the ETL), or both, to compare the resulting improvements in device performance. The optimized photovoltaic with GNF-doped buffer layer demonstrates a 17.4 % enhancement in PCE.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"295 ","pages":"Article 113918"},"PeriodicalIF":6.3000,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar Energy Materials and Solar Cells","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0927024825005197","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Both the electron transport layer (ETL) and the hole transport layer (HTL) are critical for power conversion efficiency (PCE) and stability in inverted perovskite solar cells (PSCs). In recent years, graphene-related materials have been widely used as dopants for the ETL and HTL due to their numerous inherent superior properties. Common forms of graphene, such as reduced graphene oxide or graphene synthesized by high-temperature chemical vapor deposition (CVD), have demonstrated benefits for PSCs. However, a more ingenious implementation of high-quality graphene in PSCs is still awaiting further exploration. In this study, we conduct a comprehensive investigation of graphene nanoflakes (GNFs) grown using a plasma-enhanced CVD (PECVD) system to achieve dual functionality as a dopant in both the ETL and HTL. The GNFs can be synthesized using a relatively simple, clean, and efficient PECVD system compared to other graphene-related materials. More importantly, unlike in existing literature, the as-synthesized GNFs were incorporated into either NiO_x (the HTL), PC₆₁BM (the ETL), or both, to compare the resulting improvements in device performance. The optimized photovoltaic with GNF-doped buffer layer demonstrates a 17.4 % enhancement in PCE.

查看原文本刊更多论文

石墨烯纳米片在钙钛矿太阳能电池中的双向实现

电子传输层（ETL）和空穴传输层（HTL）对倒置钙钛矿太阳能电池（PSCs）的功率转换效率（PCE）和稳定性至关重要。近年来，石墨烯相关材料由于其许多固有的优异性能而被广泛用作ETL和HTL的掺杂剂。常见形式的石墨烯，如还原氧化石墨烯或高温化学气相沉积（CVD）合成的石墨烯，已被证明对psc有好处。然而，在psc中更巧妙地实现高质量石墨烯仍有待进一步探索。在这项研究中，我们对使用等离子体增强CVD （PECVD）系统生长的石墨烯纳米片（GNFs）进行了全面的研究，以实现作为ETL和HTL掺杂剂的双重功能。与其他石墨烯相关材料相比，GNFs可以使用相对简单，清洁和高效的PECVD系统合成。更重要的是，与现有文献不同的是，将合成的GNFs合并到NiOx (html), PC61BM （ETL）或两者中，以比较由此产生的器件性能改进。优化后的掺杂gnf缓冲层光伏的PCE提高了17.4%。

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

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.