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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Perovskite Thin Film Synthesised from Sputtered Lead Sulphide

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Author(s):
Clemente da Silva Filho, Jose Maria [1] ; Ermakov, Viktor A. [1] ; Marques, Francisco Chagas [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Inst Phys Gleb Wataghin, 777 Sergio Buarque de Holanda St, BR-13083859 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 8, JAN 24 2018.
Web of Science Citations: 11
Abstract

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)

FAPESP's process: 12/10127-5 - Research and development of nanostructured materials for electronic and surface physics applications
Grantee:Fernando Alvarez
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/26385-6 - Development and study of nanoparticles that generates multiple excitons and plasmonic effects applied for solar cells
Grantee:Viktor Ermakov
Support Opportunities: Scholarships in Brazil - Post-Doctoral