Dssc
Mostrando 1-11 de 11 artigos, teses e dissertações.
-
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
-
2. Study of the Nb2O5 Insertion in ZnO to Dye-sensitized Solar Cells
Dye-sensitized solar cells (DSSC) have received much attention as an alternative to silicon-based solar cells, due to various advantages. Zinc oxide (ZnO) is an n-type semiconductor employed as photoanode on DSSC. The decrease of charge recombination is an efficient strategy capable of improving the photovoltaic performance of the device. In this perspective
Mat. Res.. Publicado em: 01/07/2019
-
3. Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells
Dye-sensitized solar cells (DSSCs) are a feasible option for photovoltaic energy. Zinc oxide is an n-type semiconductor employed as photoanode on DSSCs. ZnO thin films were electrodeposited to study the effects of different potentials applied during deposition. SEM images, XRD and UV-Vis analysis were conducted to reveal the morphologic, structural and optic
Mat. Res.. Publicado em: 18/06/2018
-
4. 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
-
5. Dye Sensitized Solar Cells Using Natural Pigments from Five Plants and Quasi-Solid State Electrolyte
Células solares sensibilizadas por corantes (DSSCs) foram fabricadas usando corantes naturais extraídos das flores de Amaranthus caudatus, Bougainvillea spectabilis, Delonix regia, Nerium oleander, Spathodea companulata e uma mistura de extratos. O desempenho da célula fotoeletroquímica (PEC) DSSCs desses
J. Braz. Chem. Soc.. Publicado em: 2015-01
-
6. Estudo sobre a estrutura eletrônica de ftalocianinas metaladas para aplicação em células solares sensibilizadas por corante
As propriedades eletrônicas de derivados de ftalocianinas metaladas push-pull de zinco(II) (FtZn), alumínio(III) (FtAl) e rutênio(II) (FtRu) apresentando dois grupos doadores de elétrons (N,N-dietilanilina) e dois grupos retiradores de elétrons (ácido benzóico), foram estudadas usando a teoria do funcional de densidade (DFT) com o funcional híbrido B
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
-
7. Elastomeric nanocomposites based on MWCNTs : preparation, characterization, and applications / Nanocompositos elastomericos baseados em MWCNTs : preparação, caracterização, e aplicações
Polymeric nanocomposites based on carbon nanotubes (CNTs) have one of the highest technological potential due to the possibility of produce materials with improved mechanical properties, high electrical conductivity at low loadings (low percolation threshold), and good processability. These systems are versatile, may present astonishing properties, and are a
Publicado em: 2009
-
8. Amiloide, amiloidose e proteina serica amiloide : frequencia e importanciana artrite reumatoide e esclerose sistemica
The amyloid protein(AA) deposited in rheumatic diseases is derived from serum amylid protein A (SAA). The purposes of the present study were to verifythe frequency of amyloidoses in rheumatoid arthrits (RA) and systemic sclerosis (SSc) through the evaluation of subcutaneous abdominal fat biopsy and to determine the SAA response associated with amyloidosis, c
Publicado em: 1994
-
9. Reavaliação da abordagem clinica e laboratorial da esclerose sistemica : analise prospectiva de 56 pacientes
The author performed a prospective analysis of 56 patients with systemic sclerosis (SSc), attended at the Rheumatology Clinic at the State University of Campinas, according to a previous protocolo The patients were subdivided in limited (lSSc) and diffuse (dSSc) forms, according LeRoy and colleagues (1988) and analysed regarding demographic variables, clinic
Publicado em: 1993
-
10. Computer based quantitative analysis of capillary abnormalities in systemic sclerosis and its relation to plasma concentration of von Willebrand factor.
OBJECTIVES--To evaluate an objective and quantitative method for assessment of capillary abnormalities in systemic sclerosis (SSc). METHODS--Nailfold capillaries were investigated by capillary microscopy and photographed in 17 consecutive SSc patients (five with diffuse cutaneous systemic sclerosis (dSSc) and 12 with limited cutaneous systemic sclerosis (lSS
-
11. Von Willebrand factor, thrombomodulin, thromboxane, beta-thromboglobulin and markers of fibrinolysis in primary Raynaud's phenomenon and systemic sclerosis.
OBJECTIVE: To determine whether measurement of different markers of endothelial damage, activation of coagulation, and platelet activation might differentiate between patients with primary Raynaud's phenomenon (PRP), limited cutaneous and diffuse systemic sclerosis (lcSSc and dSSc), and healthy control subjects. METHODS: Under carefully controlled conditions