NbCl5-Promoted Synthesis of Fluorescein Dye Derivatives: Spectroscopic and Spectrometric Characterization and Their Application in Dye-Sensitized Solar Cells

Author(s)

Sacoman Torquato da Silva, Bruno Henrique ; Bregadiolli, Bruna Andressa ; de Oliveira Graeff, Carlos Frederico ; da Silva-Filho, Luiz Carlos

• Document type: Journal article
• Source: CHEMPLUSCHEM; v. 82, n. 2, p. 261-269, FEB 2017.
• Web of Science Citations: 8

Abstract

Fluorescein has several applications owing to its properties, such as high molar absorptivity, high fluorescence quantum yield, high photostability, and wavelengths of absorption and emission in the visible region. The syntheses of fluorescein derivatives between phenol and anhydride derivatives by using NbCl5 as a Lewis acid is described. The products have high yields and short reaction times are observed. The study of the UV/Vis and fluorescence spectra of these derivatives and their application in dye-sensitized solar cells is also described. (AU)

• FAPESP's process: 14/01337-1 - Studies about the use of Niobium pentachloride, as Lewis acid, in Friedel Crafts acylation reactions, aiming the synthesis of compounds with potential application as sensitized dyes in organic eletronic devices.
• Grantee: Bruno Henrique Sacoman Torquato da Silva
• Support type: Scholarships in Brazil - Doctorate
• 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 type: Regular Research Grants
• FAPESP's process: 11/02205-3 - Hybrid solar cell based on TiO2 nanoparticles
• Grantee: Bruna Andressa Bregadiolli
• Support type: Scholarships in Brazil - Doctorate (Direct)