How does vibronic structure affect electronic energy transfer in organic molecules?

• Grant number: 12/01425-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: May 01, 2012
• End date: February 28, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: René Alfonso Nome Silva
• Grantee: Guilherme Ferreira Ferbonink
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The goal of this project is to study the effect of vibronic structure on éxciton properties (exciton size, delocalization, and energy transport mechanisms). We plan to study the effect of vibronic structure of organic molecules as well as the effect of exciton-phonon coupling with the polymer matrix into which the molecules are embedded. We plan to use steady-state electronic spectroscopy (absorption and emission), as a function of temperature, and time-resolved spectroscopy. With this data in hand, we will develop a quantitative model for exciton size distribution, and a correlation of size with Franck-Condon progression of the relevant intramolecular modes. The project also entails the use of a transient grating apparatus to perform transient absorption and two-dimensional electronic spectroscopy. Finally, the results will be modeled with in-house software.

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)

LOIOLA, PAULA T. C.; DIAS, WANDERLEIA D.; SOUZA, MONIQUE S.; FERBONINK, GUILHERME F.; ZANIOLO, MATHEUS G.; CERINI, MARIA F.; ATVARS, TERESA D. Z.; NOME, RENE A.. Ethyl stearate: ethanol binary mixtures investigated by ultrafast OKE spectroscopy, optical microscopy, dynamic light scattering, and rheology. JOURNAL OF PHYSICAL ORGANIC CHEMISTRY, v. 27, n. 4, SI, p. 316-321, APR 2014. (11/12531-5, 12/01425-2, 08/10593-0)

LOIOLA, PAULA T. C.; DIAS, WANDERLEIA D.; SOUZA, MONIQUE S.; FERBONINK, GUILHERME F.; ZANIOLO, MATHEUS G.; CERINI, MARIA F.; ATVARS, TERESA D. Z.; NOME, RENE A.. Ethyl stearate: ethanol binary mixtures investigated by ultrafast OKE spectroscopy, optical microscopy, dynamic light scattering, and rheology. JOURNAL OF PHYSICAL ORGANIC CHEMISTRY, v. 27, n. 4, p. 6-pg., 2014-04-01. (08/10593-0, 12/01425-2, 11/12531-5)

Academic Publications

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

FERBONINK, Guilherme Ferreira. Time-resolved spectroscopy applied to the study of the electronic energy transfer in organic molecules and energy transfer in gold nanoparticles. 2014. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.