Theoretical-Experimental Photophysical Investigations of the Solvent Effect on the Properties of Green- and Blue-Light-Emitting Quinoline Derivatives

Author(s)

dos Santos, Giovanny Carvalho ; Servilha, Roberta Oliveira ; de Oliveira, Elizer Fernando ; Lavarda, Francisco Carlos ; Ximenes, Valdecir Farias ; da Silva-Filho, Luiz Carlos

• Document type: Journal article
• Source: Journal of Fluorescence; v. 27, n. 5, p. 1709-1720, SEP 2017.
• Web of Science Citations: 6

Abstract

This paper describes the investigations on the solvatochromic effect and the photophysical properties of quinoline derivatives, compounds with potential applicability in optoelectronic devices. Using an experimental and theoretical approach, the effect of the solvent and the insertion of the phenyl, nitro, amino and dimethylamino group in the quinoline backbone were investigated. The use of Density Functional Theory (DFT) calculations provided the bases for the understanding of the energetic transitions observed in the absorption and fluorescence experiments. In general, it was observed a change in the wavelength of maximum absorption and fluorescence quantum yield of the studied compounds caused by the substituents in the quinoline core. This effect was correlated with the solvent dielectric constants. (AU)

• FAPESP's process: 13/08697-0 - Studies about the use niobium pentachloride in multicomponent reactions toward the synthesis of dye-sensitizers with potential application in photoelectrochemical devices of Grätzel
• Grantee: Luiz Carlos da Silva Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 15/00615-0 - Studies on the synthesis and photochemical and photophysical characterization of quinoline derivatives with donor-p-acceptor structure for use as sensitizing dyes in organic electronic devices
• Grantee: Giovanny Carvalho dos Santos
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 14/20410-1 - Electronic structure of organic materials for applications in the active layer of solar cells
• Grantee: Francisco Carlos Lavarda
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/01599-1 - Studies about the use of NbCl5 in multicomponent reactions for the synthesis of organic dyes
• Grantee: Luiz Carlos da Silva Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 12/21983-0 - ELECTRONIC STRUCTURE OF ORGANIC MATERIALS FOR APPLICATIONS IN SOLAR CELLS' ACTIVE LAYERS
• Grantee: Eliezer Fernando de Oliveira
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 12/24199-8 - Studies on synthesis of Quinoline derivatives promoted by Niobium Pentachloride, for use as dyes-sensitizers in photoelectrochemical devices of Grätzel
• Grantee: Giovanny Carvalho dos Santos
• Support Opportunities: Scholarships in Brazil - Master