High purity and crystalline thin films of methylammonium lead iodide perovskites by a vapor deposition approach

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

José C. S. Costa (Autor) FCUP; João Azevedo (Autor) FEUP; João P. Araújo (Autor) Outra; Luís M. N. B. F. Santos (Autor) Outra; Adélio Mendes (Autor) FEUP

Revista

Título: Thin Solid Films

Vol. 664

Páginas: 12-18

ISSN: 0040-6090

Editora: Elsevier

Indexação

ISI Web of Knowledge - 17 Citações

Scopus - 18 Citações

INSPEC

Projetos Associados

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Outras Informações

ID Authenticus: P-00P-HQF

DOI: 10.1016/j.tsf.2018.08.026

Abstract (EN): A procedure for the physical vapor deposition (PVD), in high-vacuum conditions, for high purity and crystalline methylammonium lead halide perovskite thin films is described. This procedure and methodology can be used to fabricate high-performance hybrid organic-inorganic materials that have recently emerged as the next-generation photovoltaic technology. PVD of methylammonium iodide and lead iodide to produce lead halide perovskite thin films was optimized according to the equilibrium vapor pressures of corresponding precursors evaporated from Knudsen effusion cells. Optical properties of perovskite thin films were characterized by UV-Vis-NIR and fluorescence spectroscopy. The high crystallinity of vapor-deposited thin films on glass, indium fin oxide, fluorine-doped fin oxide, and TiO2 surfaces was proved by scanning electron microscopy and X-ray diffraction. This vapor deposition approach leads to the production of very pure, crystalline and high stable perovskite thin films.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7