Junghun Lee, Jeonghye Park, Byeong-Cheol Jeon, Soohwan Lim, Jeong-Yeon Back, Jinhyun Kim, Taeho Moon
{"title":"Employing PEDOT:PSS as a Hole Transport Material in Regular Rudorffite AgBiI4 Solar Cells for Indoor Photovoltaics","authors":"Junghun Lee, Jeonghye Park, Byeong-Cheol Jeon, Soohwan Lim, Jeong-Yeon Back, Jinhyun Kim, Taeho Moon","doi":"10.1021/acssuschemeng.4c03475","DOIUrl":null,"url":null,"abstract":"The recent surge in interest for Pb-based perovskites in indoor photovoltaics (IPVs) is tempered by concerns over the toxic nature of Pb. The wide bandgap rudorffite Ag<sub><i>x</i></sub>Bi<sub><i>y</i></sub>I<sub><i>x</i>+3<i>y</i></sub> (ABI) emerges as a promising Pb-free alternative for IPV absorbers. The conventional choice for a hole transport material (HTM) in ABI devices, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA), is employed without additives due to ABI’s susceptibility to corrosion. This work introduces, for the first time, a regular n–i–p ABI solar cell incorporating poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the HTM, utilizing water-free PEDOT:PSS dispersions. We analyzed the photovoltaic performance of these devices under AM 1.5G 1 sun and 1000 lx white light-emitting diode illumination. Owing to PEDOT:PSS’s superior conductivity and the reduced recombination at the PEDOT:PSS/AgBiI<sub>4</sub> interface, the PEDOT:PSS-based devices exhibited a significant enhancement in power conversion efficiency under 1000 lx compared to their PTAA-based counterparts, achieving a stabilized output of 3.3% (10.8 μW/cm<sup>2</sup>) for the optimal device. The stability of PEDOT:PSS-based devices was assessed in an ambient atmosphere without encapsulation. Although exhibiting exceptional stability under 1 sun, the devices retained only 67.7% of their initial PCE after 33 days under 1000 lx, revealing a heightened sensitivity to aging under low-light conditions.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":7.1000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Sustainable Chemistry & Engineering","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acssuschemeng.4c03475","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The recent surge in interest for Pb-based perovskites in indoor photovoltaics (IPVs) is tempered by concerns over the toxic nature of Pb. The wide bandgap rudorffite AgxBiyIx+3y (ABI) emerges as a promising Pb-free alternative for IPV absorbers. The conventional choice for a hole transport material (HTM) in ABI devices, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA), is employed without additives due to ABI’s susceptibility to corrosion. This work introduces, for the first time, a regular n–i–p ABI solar cell incorporating poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the HTM, utilizing water-free PEDOT:PSS dispersions. We analyzed the photovoltaic performance of these devices under AM 1.5G 1 sun and 1000 lx white light-emitting diode illumination. Owing to PEDOT:PSS’s superior conductivity and the reduced recombination at the PEDOT:PSS/AgBiI4 interface, the PEDOT:PSS-based devices exhibited a significant enhancement in power conversion efficiency under 1000 lx compared to their PTAA-based counterparts, achieving a stabilized output of 3.3% (10.8 μW/cm2) for the optimal device. The stability of PEDOT:PSS-based devices was assessed in an ambient atmosphere without encapsulation. Although exhibiting exceptional stability under 1 sun, the devices retained only 67.7% of their initial PCE after 33 days under 1000 lx, revealing a heightened sensitivity to aging under low-light conditions.
期刊介绍:
ACS Sustainable Chemistry & Engineering is a prestigious weekly peer-reviewed scientific journal published by the American Chemical Society. Dedicated to advancing the principles of green chemistry and green engineering, it covers a wide array of research topics including green chemistry, green engineering, biomass, alternative energy, and life cycle assessment.
The journal welcomes submissions in various formats, including Letters, Articles, Features, and Perspectives (Reviews), that address the challenges of sustainability in the chemical enterprise and contribute to the advancement of sustainable practices. Join us in shaping the future of sustainable chemistry and engineering.