التفاصيل البيبلوغرافية
| العنوان: |
Challenges and improvement pathways to develop quasi-1D (Sb1-xBix)2Se3-based materials for optically tuneable photovoltaic applications. Towards chalcogenide narrow-bandgap devices |
| المؤلفون: |
Caño Prades, Ivan, Vidal Fuentes, Pedro, Gon Medaille, Axel, Jehl, Zacharie, Jiménez Arguijo, Alex, Guc, Maxim, Izquierdo Roca, Victor, Malerba, Claudia, Valentini, Matteo, Jiménez Guerra, Maykel, Placidi, Marcel, Puigdollers, Joaquim, Saucedo, Egardo |
| بيانات النشر: |
Zenodo |
| سنة النشر: |
2023 |
| المجموعة: |
Zenodo |
| مصطلحات موضوعية: |
Photovoltaics, (Sb1-xBix)2Se3, Sb2Se3, Emerging earth-abundant materials, Quasi-1D materials, Narrow-bandgap devices, Synthesis |
| الوصف: |
Quasi-1D chalcogenides have shown great promises in the development of emerging photovoltaic technologies. However, most quasi-1D semiconductors other than Sb 2 Se 3 and Sb 2 S 3 have been seldom investigated for energy generation applications. Indeed, cationic or anionic alloying strategies allow changing the bandgap of these materials, opening the door to the development of an extended range of chalcogenides with tuneable optical and electrical properties. In this work, Bi incorporation into the Sb 2 Se 3 structure has been proved as an effective approach to modulate the bandgap between <1.0eV and 1.3eV, demonstrating conversion efficiencies between 3 and 5% for 0.010.1. In order to better understand the underlying mechanisms leading to the formation of (Sb 1-x Bi x ) 2 Se 3 , and thus design specific strategies to enhance its properties, thin films with different annealing time and temperature have been synthesized and characterized. Interestingly, it has been observed that Sb 2 Se 3 and Bi 2 Se 3 are formed first, with Bi melting at 300°C and diffusing rapidly towards the surface of the film. At higher temperature, the binary compounds combine to form the solid solution, however as the dwell time increases, (Sb 1-x Bi x ) 2 Se 3 decomposes again into Bi 2 Se 3 and Sb. This study has shown that the material is essentially limited by compositional disorder and recombination via defects. Likewise, routes have been proposed to improve morphology and uniformity of the layer, achieving efficiencies higher than 1% for x>0.2. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| Relation: |
https://doi.org/10.5281/zenodo.7583872; https://doi.org/10.5281/zenodo.7583873; oai:zenodo.org:7583873 |
| DOI: |
10.5281/zenodo.7583873 |
| الاتاحة: |
https://doi.org/10.5281/zenodo.7583873 |
| Rights: |
info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/legalcode |
| رقم الانضمام: |
edsbas.1F40DDC2 |
| قاعدة البيانات: |
BASE |