{"title":"Simulation and optimization of GaAs1-xPx/Si1-yGey/Ge triple junction solar cells","authors":"A. B. Azzououm, A. Aissat, J. Vilcot","doi":"10.15251/jor.2024.201.75","DOIUrl":null,"url":null,"abstract":"This paper focuses on studying and simulating a GaAs1-xPx/Si1-yGey/Ge triple-junction solar cell structure. First, the strain and the bandgap energy associated to the SiGe layer have been studied. The optimal germanium concentration is 0.88 with a strain around 0.45%. Then, the phosphor concentration effect on the strain and the bandgap energy of the upper layer GaAs1-xPx/Si0.12Ge0.88 has been optimized. At room temperature, the optimal output parameter reach Jsc=34.41mA/cm2 , Voc=1.27V, FF=88.42% and η=38.45% for an absorber thickness of 4.5µm and x=0.47, with a strain that doesn’t exceed 1.5%. This study has enabled us to design a high-efficiency, low cost 3J solar cell.","PeriodicalId":49156,"journal":{"name":"Journal of Ovonic Research","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Ovonic Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.15251/jor.2024.201.75","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This paper focuses on studying and simulating a GaAs1-xPx/Si1-yGey/Ge triple-junction solar cell structure. First, the strain and the bandgap energy associated to the SiGe layer have been studied. The optimal germanium concentration is 0.88 with a strain around 0.45%. Then, the phosphor concentration effect on the strain and the bandgap energy of the upper layer GaAs1-xPx/Si0.12Ge0.88 has been optimized. At room temperature, the optimal output parameter reach Jsc=34.41mA/cm2 , Voc=1.27V, FF=88.42% and η=38.45% for an absorber thickness of 4.5µm and x=0.47, with a strain that doesn’t exceed 1.5%. This study has enabled us to design a high-efficiency, low cost 3J solar cell.
期刊介绍:
Journal of Ovonic Research (JOR) appears with six issues per year and is open to the reviews, papers, short communications and breakings news inserted as Short Notes, in the field of ovonic (mainly chalcogenide) materials for memories, smart materials based on ovonic materials (combinations of various elements including chalcogenides), materials with nano-structures based on various alloys, as well as semiconducting materials and alloys based on amorphous silicon, germanium, carbon in their various nanostructured forms, either simple or doped/alloyed with hydrogen, fluorine, chlorine and other elements of high interest for applications in electronics and optoelectronics. Papers on minerals with possible applications in electronics and optoelectronics are encouraged.