Nanoscopic reactivity in chemical and photochemical systems

• Grant number: 21/01718-9
• Support Opportunities: Regular Research Grants
• Duration: July 01, 2021 - December 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Marcelo Henrique Gehlen
• Grantee: Marcelo Henrique Gehlen
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Chemical and photochemical processes including catalytic organic reactions (Knoevenagel amino-catalysis, Debus-Radziszewski acid catalysis and Suzuki-Miyaura palladium catalysis) forming fluorescent dyes are investigated in mesoscopic, nanoscopic and single molecule level by using advanced super-resolution optical microscopy combined with stochastic analysis time-series of the observed fluorescence intermittency. Those chemical reactions and products will be used to chemically modify carbon nano-hybrids such as graphene and reduced graphene oxide, as well as thin films and quantum wells of perovskites. Their excited state dynamics and spectroscopy leading to photoinduced charge separation will be investigated and optimized, owing their possible applications in optical and photochemical devices including photovoltaic solar cells and photocatalysts. (AU)

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)

REIS, IZADORA FONSECA; FOLTRAN, LARISSA SCHUMEKEL; LAUER, MILENA HELMER; GEHLEN, MARCELO HENRIQUE; DREKENER, ROBERTA LOPES; CORREIA, CARLOS ROQUE DUARTE. Reactive Phenanthrene Derivatives as Markers of Amino Groups in Fluorescence Microscopy of Surface Modified Micro-Zeolite L. Journal of Fluorescence, v. 31, n. 5, JUL 2021. (21/01718-9)