Hybrid solar cell based on TiO2 nanoparticles

• Grant number: 11/02205-3
• Support type: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): October 01, 2011
• Effective date (End): September 30, 2016
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal researcher: Carlos Frederico de Oliveira Graeff
• Grantee: Bruna Andressa Bregadiolli
• Home Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

This project regards the fabrication and study of hybrid and Grätzel solar cells based on nanostructured TiO2 films. Special attention will be given to structural and optical properties of TiO2 films and TiO2/P3HT and TiO2/N3 interfaces. The nanostructured TiO2 thin films will be synthesized by hydrothermal technique. The basic characterization of these films will be made through of X-ray diffraction, scanning electron microscopy, UV-Vis-NIR spectrophotometry and spectrofluorimetry. The interface degradation will be monitored through the fluorescence spectra and absorbance in the UV-Vis-NIR region. The results obtained in interface studies will be then used to assemble the photovoltaic devices aiming to increase its energy conversion efficiency. The basic characterization of the devices will be carried out by photo-current and current versus applied voltage measurements in dark and under controlled lighting. Impedance spectroscopy combined to Electrically Detected Magnetic Resonance (EDMR) will be used to investigate the carrier transport processes, which are important to obtain a fast optimization route of the studied devices. (AU)

Scientific publications

(6)

(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)

BREGADIOLLI, BRUNA A.; RAMANITRA, HASINA H.; FERREIRA, RODRIGO MARQUES; CORCOLES, LAURA; GOMES, MILTON S.; KANG, LAUREN; COMBE, CRAIG M. S.; SILVA, HUGO SANTOS; LAVARDA, FRANCISCO C.; BEGUE, DIDIER; et al. Towards the synthesis of poly(azafulleroid)s: main chain fullerene oligomers for organic photovoltaic devices. Polymer International, v. 66, n. 10, p. 1364-1371, OCT 2017. (11/02205-3)

SACOMAN TORQUATO DA SILVA, BRUNO HENRIQUE; BREGADIOLLI, BRUNA ANDRESSA; DE OLIVEIRA GRAEFF, CARLOS FREDERICO; DA SILVA-FILHO, LUIZ CARLOS. NbCl5-Promoted Synthesis of Fluorescein Dye Derivatives: Spectroscopic and Spectrometric Characterization and Their Application in Dye-Sensitized Solar Cells. CHEMPLUSCHEM, v. 82, n. 2, p. 261-269, FEB 2017. (14/01337-1, 16/01599-1, 11/02205-3)

RAMANITRA, HASINA H.; SILVA, HUGO SANTOS; BREGADIOLLI, BRUNA A.; KHOUKH, ABDEL; COMBE, CRAIG M. S.; DOWLAND, SIMON A.; BEGUE, DIDIER; GRAEFF, CARLOS F. O.; DAGRON-LARTIGAU, CHRISTINE; DISTLER, ANDREAS; et al. Synthesis of Main-Chain Poly(fullerene)s from a Sterically Controlled Azomethine Ylide Cycloaddition Polymerization. MACROMOLECULES, v. 49, n. 5, p. 1681-1691, MAR 8 2016. (11/02205-3)

RAMANITRA, HASINA H.; DOWLAND, SIMON A.; BREGADIOLLI, BRUNA A.; SALVADOR, MICHAEL; SILVA, HUGO SANTOS; BEGUE, DIDIER; GRAEFF, CARLOS F. O.; PEISERT, HEIKO; CHASSE, THOMAS; RAJOELSON, SAMBATRA; et al. Increased thermal stabilization of polymer photovoltaic cells with oligomeric PCBM. JOURNAL OF MATERIALS CHEMISTRY C, v. 4, n. 34, p. 8121-8129, 2016. (11/02205-3)

SILVA, HUGO SANTOS; RAMANITRA, HASINA H.; BREGADIOLLI, BRUNA A.; BEGUE, DIDIER; GRAEFF, CARLOS F. O.; DAGRON-LARTIGAU, CHRISTINE; PEISERT, HEIKO; CHASSE, THOMAS; HIORNS, ROGER C.. Oligo- and Poly(fullerene)s for Photovoltaic Applications: Modeled Electronic Behaviors and Synthesis. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v. 55, n. 8, p. 1345-1355, APR 15 2017. (11/02205-3)

SILVA, HUGO SANTOS; RAMANITRA, HASINA H.; BREGADIOLLI, BRUNA A.; TOURNEBIZE, AURELIEN; BEGUE, DIDIER; DOWLAND, SIMON A.; LARTIGAU-DAGRON, CHRISTINE; GRAEFF, CARLOS F. O.; DISTLER, ANDREAS; PEISERT, HEIKO; et al. In Situ Generation of Fullerene from a Poly(fullerene). JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, v. 57, n. 21, p. 1434-1452, NOV 1 2019. (11/02205-3)

Academic Publications

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

BREGADIOLLI, Bruna Andressa. Study and development of materials for applications in hybrid solar cells. 2016. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências. Bauru Bauru.