Dye Sensitized Solar Cell
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Study of electrophoretic deposition of ZnO photoanodes on fluorine-doped tin oxide (FTO) glass for dye-sensitized solar cells (DSSCs)
Abstract Semiconductors, such as zinc oxide (ZnO), are used in different scientific fields, including energy. This study applied ZnO thin films on a photovoltaic cell, specifically a dye-sensitized solar cell (DSSC). ZnO was used in solar cells due to its characteristics such as electronic mobility. Electrophoretic deposition (EPD) is an efficient method to
Cerâmica. Publicado em: 2022
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2. Performance Evaluation of Titanate Nanotubes and Nanoribbons Deposited by Electrophoresis in Photoelectrodes of Dye-Sensitized Solar Cells
Nanoparticles of TiO2 have been the main semiconductor applied in Dye-sensitized solar cells (DSSCs). In this work, titanate nanotubes (NaTiNT) and nanoribbons, were obtained by the hydrothermal method from TiO2 anatase. These materials were deposited on conductive substrate by electrophoresis, with and without thermal treatment, sensitized by ruthenium-base
Mat. Res.. Publicado em: 28/05/2018
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3. AVALIAÇÃO DA ADSORÇÃO E ESTUDO ELETROQUÍMICO DE CÉLULAS SOLARES PRODUZIDAS COM TiO2 E CORANTE EXTRAÍDO DO HIBISCUS
Dye-sensitized solar cells using natural dyes have lower cost when compared to ruthenium-based dyes. This paper aims to evaluate, electrochemically, solar cells composed of TiO2 with dye extracted from the Hibiscus(var. Sabdariffa) and propose an adsorption model capable of predicting the adsorption mechanism of the dye on the semiconductor surface. The char
Quím. Nova. Publicado em: 2018-05
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4. OPTOELECTRONIC PROPERTIES OF TRIPHENYLAMINE BASED DYES FOR SOLAR CELL APPLICATIONS. A DFT STUDY
Abstract: Dye-sensitized solar cells (DSSCs) based on triphenylamine (TPA) as a donor group linked with the acceptor cyanoacrylic acid electron acceptor by 2,2’-bithiophene as π-bridged (D-π-A) has been investigated by Density Functional Theory (DFT) at the B3LYP/6-311G(d,p) level of theory, to establish the conformational orientation of cyanoacrylic aci
Quím. Nova. Publicado em: 2018-02
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5. CÉLULAS SOLARES SENSIBILIZADAS POR CORANTES NATURAIS: UM EXPERIMENTO INTRODUTÓRIO SOBRE ENERGIA RENOVÁVEL PARA ALUNOS DE GRADUAÇÃO
An interesting practical experiment about the preparation of dye–sensitized solar cells (DSSC) using natural dyes were carried out by the undergraduate students in the chemistry course at UNICAMP . Natural dyes were extracted from blueberries (Vaccinium myrtillus L.), jabuticabas (Myrciaria cauliflora), raw and cooked beets (Beta vulgaris L.), and annattos
Quím. Nova. Publicado em: 2015-12
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6. Aplicação do corante da casca da berinjela em células solares fotossensibilizadas. / Application of dye from the peel of eggplant in photosensitizer in solar cells.
Despite the efficiency of conventional solar cells reach about 20%, the cost of producing electricity using photovoltaic panels about 42 cents per kWh is still much higher than the cost of power generated by hydroelectric, 8 cents per kWh. Given the high cost of producing solar panels, woke up the interest in solar cells using dyes fotoexcitáveis known as G
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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7. Em busca da sustentabilidade: células solares sensibilizadas por extratos naturais
The present work reports the use of anthocyanins extracted from mulberry (Morus Alba L.), raspberry (Rubus Idaeus L.) and blueberry (Vaccinium myrtillus L.) as sensitizers in dye-sensitized solar cells. The conversion efficiency of these devices is dependent on the extracts employed and can be rationalized in terms of their composition and spectral propertie
Química Nova. Publicado em: 2010
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8. Re(I) complexes and TiO2 films in photoinduced molecular devices / Complexos de Re(I) e filmes de TiO2 em dispositivos moleculares fotoinduzidos
The thesis focus on two main topics: characterization of TiO2 films for Dye-sensitized solar cells, DSCs, and investigation on photochemical and photophysical properties of Re(I) polypyridyl complexes. Mesoporous TiO2 films were prepared by sol-gel method and by commercial oxide (P25, Degussa) and were characterized by XRD, SEM, B.E.T. and XPS. Both oxides w
Publicado em: 2009
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9. Resistência interna de células solares fotovoltaicas de Si e TiO2
Interest in research concerning renewable energy sources has grown in recent decades. In this context the study of the physical processes important in the conversion of solar energy radiation via the photovoltaic effect has increasingly been studied theoretically and experimentally. In this thesis we take a thermodynamical approach to the solar energy conver
Publicado em: 2005