Stability and formation dynamics of 2D/3D perovskites interface investigated by in situ techniques

• Grant number: 22/16614-7
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: May 01, 2023
• End date: April 30, 2026
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Ana Flávia Nogueira
• Grantee: Murillo Henrique de Matos Rodrigues
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Company: Universidade Estadual de Campinas (UNICAMP). Instituto de Química (IQ)
• Associated research grant: 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country, AP.PCPE
• Associated scholarship(s): 25/07743-6 - Engineering formation of 2D on 3D perovskites: characterization and devices performance and stability, BE.EP.PD

Abstract

This research proposal is inserted in the progressively relevant global context, in which developing new energy technologies to mitigate global warming is a critical issue for an energy-dependent society today. The search for new sustainable energy production and storage technologies becomes essential to solve the problems of energy demand and the depletion of fossil fuels. In this context, perovskite solar cells have received significant attention due to the high efficiency achieved in a few years and relatively low preparation cost. However, their longevity lags behind conventional silicon technology due to their instability in ambient conditions. Currently, preparing structured 2D/3D perovskite films by engineering method is a strategy to mitigate the stability problem. The 2D low-dimensional perovskites present high environmental stability, while 3D provides increased efficiency, bringing perovskite solar cells closer to commercialization. Although, so far, there is a lack of structural comprehension about the 2D/3D perovskites interface and how this interface behaves under thermal and light stresses. In this direction and considering the advantages of in situ characterizations which have already been well demonstrated in fields such as batteries, electrocatalysis, and even in perovskite solar cells by our group, we propose the use of advanced in situ characterization techniques to monitor and evaluate the formation dynamics and stability under stress conditions of 2D/3D perovskites.

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)

DE RODRIGUES, MURILLO H. M.; NETO, DIOGO M. GUILHERMITTI; BARCELOS, INGRID D.; LABRE, CILENE; COSTA, CARLOS ALBERTO R.; DE SOUZA JUNIOR, JOAO BATISTA; SOBRINHO, JOSIANE A.; NOGUEIRA, ANA FLAVIA. The influence of the buried interface on the orientational crystallization and thermal stability of halide perovskite thin films. JOURNAL OF MATERIALS CHEMISTRY A, v. 13, n. 23, p. 11-pg., 2025-05-14. (21/03321-9, 17/11986-5, 22/16614-7)