Exploring the Properties of Niobium Oxide Films for Electron Transport Layers in Perovskite Solar Cells

Autor: Luiz G. S. Albano, Elson Longo, Lucas Jorge Affonço, Carlos Frederico de Oliveira Graeff, Silvia Leticia Fernandes, José Humberto Dias da Silva
Přispěvatelé: Universidade Federal de São Carlos (UFSCar), Universidade Estadual Paulista (Unesp)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Chemistry, Vol 7 (2019)
Frontiers in Chemistry
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 2296-2646
DOI: 10.3389/fchem.2019.00050/full
Popis: Made available in DSpace on 2019-10-06T17:14:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01 In this work, niobium oxide films were deposited by reactive magnetron sputtering under different oxygen flow rate and applied as electron transport layer in perovskite solar cells. It was found that the deposition made using 3.5 sccm of oxygen flow resulted in films with better electrical properties which helped the extraction of the photogenerated electrons to the external circuit, improving the Jsc and consequently the device efficiency. In addition, by photoluminescence measurements, we found a better charge transfer from perovskite to TiO2/niobium oxide film deposited at 3.5 sccm of oxygen flow. Department of Chemistry Federal University of São Carlos (UFSCAR) Department of Physics School of Sciences São Paulo State University (UNESP) Department of Physics School of Sciences São Paulo State University (UNESP)
Databáze: OpenAIRE