Investigation of charge carrier transport in Dion-Jacobson 2D - 3D multidimensional perovskite system for solar conversion.

• Grant number: 24/15260-2
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: January 01, 2025
• End date: June 30, 2028
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: André Luiz Martins de Freitas
• Grantee: Gabriela Oliveira Gera
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Associated research grant: 22/06433-5 - From fundamental properties of multidimensional halide perovskites to energy conversion applications, AP.GR

Abstract

The well-established application of APbX3 (wherein A = Cs or CH3NH3 and X = I, Cl or Br) into photovoltaic solar cells deal with a poor long-term stability due to the material hydrophilic nature and high ionic conductivity facilitating the interface degradation. Building 2D/3D multidimensional heterostructured system contributes to overcome the challenges in the photo-absorber layer by reducing the defect density and residual stress for charge carrier transfer. The unsatisfactory stability of the widely employed Ruddlesden-Popper 2D perovskites, due to weak van der Waals interactions in the spacer layer, places rigid structures as 2D Dion-Jacobson (DJ) family in evidence for this strategy. In light of this, this work intends to synthesize and investigate the physical properties of coupling organic/inorganic hybrid perovskites (3D) with two-dimensional (2D) structures, in order to improve environmental stability and charge carrier transport dynamics. The project plan will systematically investigate the development 2D-DJ perovskites and the fabrication process for 2D/3D heterointerface evaluating charge carrier dynamics, optoelectronic properties, and their impact on the photovoltaic performance.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DOS SANTOS, GUSTAVO SANGHIKIAN MARQUES; THEODORO, REINALDO DOS SANTOS; GERA, GABRIELA OLIVEIRA; PERFECTO, TARCISIO MICHELI; VOLANTI, DIOGO PASCHOALINI. Ethyl Acetate Detection Using Mixed-Phase In₂O₃ Nanorods. ACS APPLIED NANO MATERIALS, v. 8, n. 22, p. 12-pg., 2025-05-08. (22/14720-4, 24/15260-2, 24/03388-4, 20/06421-1, 22/05381-1, 24/12700-1)