{"title":"Study of gold, silver-gold nanoparticles incorporated to carbon paint for electrodes application in thin-film solar cells","authors":"Patricia Horta-Fraijo, H.Moreno- García","doi":"10.1016/j.rio.2025.100905","DOIUrl":null,"url":null,"abstract":"<div><div>The study investigated Au-Ag and Au nanoparticles (NPs) synthesized chemically and added to a commercial conductive carbon paint used as electrodes in Bi<sub>2</sub>S<sub>3</sub>/PbS thin-film solar cells. I-V measurements were used for device characterization. NPs were found on the carbon paint surface with sizes of 11.1 ± 0.09 nm to 29 ± 7.5 nm. FFT analysis showed a cubic crystal structure for all NPs. Optically, Au-Ag(1) exhibited broad absorption (363–600 nm), Au-Ag(2) peaked at 546 nm, and Au at 521 nm. Devices with NP-modified electrodes with sizes 29 ± 7.5 nm showed enhanced short-circuit current density (J<sub>SC</sub>), with Au-Ag(2) reaching 7.19 mA/cm<sup>2</sup> and a PCE of 0.46 %, compared to the reference J<sub>SC</sub> of 3.02 mA/cm<sup>2</sup> and PCE of 0.11 %. Series resistance dropped from 23 Ω·cm<sup>2</sup> to 2 Ω·cm<sup>2</sup> (Au-Ag) and 5 Ω·cm<sup>2</sup> (Au).</div></div>","PeriodicalId":21151,"journal":{"name":"Results in Optics","volume":"21 ","pages":"Article 100905"},"PeriodicalIF":3.0000,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Results in Optics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666950125001336","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
The study investigated Au-Ag and Au nanoparticles (NPs) synthesized chemically and added to a commercial conductive carbon paint used as electrodes in Bi2S3/PbS thin-film solar cells. I-V measurements were used for device characterization. NPs were found on the carbon paint surface with sizes of 11.1 ± 0.09 nm to 29 ± 7.5 nm. FFT analysis showed a cubic crystal structure for all NPs. Optically, Au-Ag(1) exhibited broad absorption (363–600 nm), Au-Ag(2) peaked at 546 nm, and Au at 521 nm. Devices with NP-modified electrodes with sizes 29 ± 7.5 nm showed enhanced short-circuit current density (JSC), with Au-Ag(2) reaching 7.19 mA/cm2 and a PCE of 0.46 %, compared to the reference JSC of 3.02 mA/cm2 and PCE of 0.11 %. Series resistance dropped from 23 Ω·cm2 to 2 Ω·cm2 (Au-Ag) and 5 Ω·cm2 (Au).