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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Perovskite Thin Film Synthesised from Sputtered Lead Sulphide

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Autor(es):
Clemente da Silva Filho, Jose Maria [1] ; Ermakov, Viktor A. [1] ; Marques, Francisco Chagas [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Phys Gleb Wataghin, 777 Sergio Buarque de Holanda St, BR-13083859 Campinas, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: SCIENTIFIC REPORTS; v. 8, JAN 24 2018.
Citações Web of Science: 11
Resumo

In the last few years, research on dye-sensitised devices has been focused on the development of solar cells, based on CH3NH3PbX3 (X = I-, Br-, Cl-) composites with perovskite structure. The deposition of perovskite thin films is usually carried out by solution-based processes using spincoating techniques that result in the production of high quality films. Solar cells made by this method exceed 20% efficiency, with the potential for use in large scale production through ink print or screen printing techniques. As an alternative route, perovskite thin films can be deposited through thermal evaporation. A new method is proposed to produce CH3NH3PbI3, based on a radio-frequency (rf) -sputtering technique that results in a high reproducibility of the films and is compatible with roll-toroll processes. We deposited thin films of lead-sulphide (PbS) and converted them into perovskite by placing the films in an iodine atmosphere, followed by dipping in a solution of methylammonium iodide (CH3NH3I). The conversions to PbI2 and CH3NH3PbI3 were confirmed by elemental analyses, absorption, and photoluminescence spectroscopy. Structural properties were revealed by X-ray diffraction and infrared and Raman spectroscopy. (AU)

Processo FAPESP: 12/10127-5 - Pesquisa e desenvolvimento de materiais nanoestruturados para aplicações eletrônicas e de física de superfícies
Beneficiário:Fernando Alvarez
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 13/26385-6 - Desenvolvimento e estudo de nanopartículas geradoras de múltiplos éxcitons e efeito plasmônico para células solares
Beneficiário:Viktor Ermakov
Linha de fomento: Bolsas no Brasil - Pós-Doutorado