Photoluminescent ellipsometric circular dichroism

Author(s)

Dalkiranis, Gustavo Goncalves ; Basilio, Fernando Costa ; Nobuyasu, Roberto S. ; Curcino da Silva, Silesia de Fatima ; Nogueira, Sandra Lucia Dias ; Therezio, Eralci Moreira ; Serein-Spirau, Francoise ; Silva, Raigna A. ; Marletta, Alexandre

• Document type: Journal article
• Source: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY; v. 293, p. 8-pg., 2023-02-07.

Abstract

A novel spectroscopic technique, photoluminescent ellipsometric circular dichroism (PECD), which distinguishes all radiative electronic transitions related to molecular chiral centers. Additionally, it is proposed as comple-mentary to the ellipsometric Raman spectroscopy (ERS) technique, thus establishing a relationship between vibrational modes and electronic transitions, associated with molecular chiral centers. In this way, PECD turns into a powerful technique for chiral material characterization. The PECD technique was performed on a chiral oligomer (1R,2R)-diiminocyclohexane, and its derivative polymer. A complete photophysical characterization in solution was performed to corroborate the new PECD technique. (AU)

• FAPESP's process: 21/12458-8 - Development of label-free biosensors based on graphene
• Grantee: Gustavo Gonçalves Dalkiranis Pereira
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 19/26375-7 - Study of the thermoelectric properties of NDI-2Tz polymer and its application on a microthermoelectric generator
• Grantee: Gustavo Gonçalves Dalkiranis Pereira
• Support Opportunities: Scholarships in Brazil - Post-Doctoral