Fluorine-doped tin oxide films by spray pyrolysis using vacuum within nozzle

Lima, Francisco Marcone; Sousa, José Hugo de Aguiar; Maia, Paulo Herbert França; Silva, Álvaro Neuton de Araújo; Sena, Augusto Marcos Carvalho de; Freire, Francisco Nivaldo Aguiar; Almeida, Ana Fabíola Leite

doi:10.17563/rbav.v34i3.998

Cited by 3 publications

(2 citation statements)

References 13 publications

(46 reference statements)

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“…Fluorine doped tin oxide (SnO:F 2 ) was deposited by spray pyrolysis on blades for microscopy, adapted from the method described by , without adding acid, to create a conductive coat of fluorine doped tin oxide (FTO) on the glass surfaces 14 . The furnace temperature during the pyrolysis operated at 600 ºC.…”

Section: Methodsmentioning

confidence: 99%

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

et al. 2018

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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 optical properties of the films at three potentials. DSSCs were assembled and the photovoltaic parameters were obtained through J-V plots. DSSC with 0.031% of efficiency was demonstrated at -1.4 V of deposition potential.

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Section: Methodsmentioning

confidence: 99%

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

et al. 2018

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“…O sistema foi montado numa capela e o exaustor fi cou ligado durante todo o trabalho. O sistema de pulverização pirolítica foi composto por um bico (APREX's alfa 4) conectado a um recipiente para armazenar a solução e por um compressor de ar (Twister SHULZ) (11) . Também, um soprador térmico (Bosch GHG 630 DCE) e termopar tipo K foram usados.…”

Section: Materiais E Métodosunclassified

Degradação rápida de folhas de policarbonato

Lima

Martins²,

Narcimento³

et al. 2017

RBAV

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A degradação térmica de folhas de policarbonato foi feita por pulverização pirolítica da solução aquosa de hidróxido de sódio.Para a pulverização da solução foi usado um bico com vácuo. A espectroscopia de fotoluminescência, a microscopia eletrônica de varredura (MEV) e a fluorescência de raios-X (FRX) foram as técnicas usadas para a caracterização do material, antes e após a degradação. As folhas de policarbonato com e sem degradação quando expostas à radiação na faixa de comprimento de onda ultravioleta da ordem de 385 nm exibiram fotoluminescência. Os picos de emissões ocorreram em 410 nm e 440 nm, faixas do violeta e azul, respectivamente. Adicionalmente, com o auxílio das demais técnicas, é proposta uma possível razão para os resultados mostrados pela espectroscopia de fotoluminescência. Palavras-chave:Policarbonato; Degradação; Vácuo; Fotoluminescência. ABSTRACTThe thermal degradation of polycarbonate sheets was made from water-sodium hydroxide solution by spray pyrolysis. It was created a vacuum within nozzle for provides the spray. The material, before and after of the thermal degradation, were characterized by photoluminescence spectroscopy, scanning electron microscopy and X-ray fluorescence. Polycarbonate sheets, before and after of the thermal degradation, when subjected to monochromatic ultraviolet radiation with a wavelength of 385 nm showed photoluminescence. It was observed that the emission occurred in the violet band and the blue band, with peak intensities at 410 nm and 440 nm, respectively. In addition, the other techniques help in understanding on the results obtained from photoluminescence spectroscopy.

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Use of SnOx:F in the Recycling of Silicon Solar Cells

et al. 2018

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Amongst the many parts of a silicon cells photovoltaic module, silicon is the most important and expensive constituent. Thus, research on silicon recycling from damaged cells can lead to economic and environmental benefits. In this work, the broken silicon cells were tailored to function along with the fluorine-doped tin oxide as the transparent electric conductors. The broken silicon cells were analyzed by the current density versus voltage plots, together with the Mott-Schottky, X-rays diffraction and fluorescence analysis. Under light, the damaged cells sandwiched between the two transparent electric conductors presented photovoltaic effect. However, such effect was not obtained after the removal of the antireflection layer due to the destruction of the n-type layer as demonstrated by the Mott-Schottky analysis. The X-rays diffraction revealed samples rich on silicon atoms and the presence of aluminum atoms as impurity.

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Fluorine-doped tin oxide films by spray pyrolysis using vacuum within nozzle

Cited by 3 publications

References 13 publications

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

Degradação rápida de folhas de policarbonato

Use of SnOx:F in the Recycling of Silicon Solar Cells

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