Identifying morphological and spectral inhomogeneities in perovskites by luminescence and topography

• Grant number: 22/06645-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2022
• End date: March 31, 2024
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Luiz Fernando Zagonel
• Grantee: Charles Alves Nogueira de Almeida
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 21/06893-3 - Optically active materials studied by scanning tunnelling microscopy, AP.JP2

Abstract

Materials composed of perovskites are considered highly promising alternatives for devices such as solar cells and light-emitting diodes and have attracted interest for their optical and electronic properties and ease of synthesis. However, challenges persist regarding the efficiency and spectral and morphological homogeneity of these materials. In addition to contributing to the improvement of its synthesis, we hope to identify and investigate possible residues of the synthesis, phase segregations and other structural reorganizations and to verify a correlation with inhomogeneities of the emission energy, we will study morphology, the light emission spectrum and the energy states through the combination of probe scanning techniques, spectroscopy and also by a scanning tunneling microscope associated with a light detector. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

ALMEIDA, Charles Alves Nogueira de. Identificação de inomogeneidades morfológicas e espectrais em perovskitas de haleto de metal. 2024. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin Campinas, SP.