Influence of dye adsorption temperature and time on the performance of dye sensitized solar cells
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2022
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CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 24.
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One of the most critical steps of the dye sensitized solar cells (DSSC) manufacture is the dye
adsorption, which directly affects the efficiency of the device, once the dye absorbs the sun light
initiating the transfer process. The immersion of the semiconductor oxide on a dye solution is one
of the ways to carry out the adsorption. Several parameters can influence the efficiency of this
adsorption method. The aim of this work was the study of influence of the time between the
preparation of the photoanode and dye adsorption and also the temperature of the photoanode
before the immersion. The ZnO nanostructures were grown on a conductive glass substrate (SnO:F)
using the Successive Ionic Layer Adsorption and Reaction (SILAR) and Chemical Bath Deposition
(CBD) methods with subsequent immersion in 0,5 mM N719 ethanolic dye solution for 12 h. The
dye adsorption was evaluated immediately after the preparation of the nanostructures and also
after several days (7-33). For comparison, some of the prepared photoanodes were kept in oven at
90 °C. In order to evaluate the temperature effect, the nanostructures were immersed in the dye at
room temperature (~23 °C) and at 80 °C. After 12 h immersion, DSSCs were prepared using these
photoanodes and the photovoltaic performance was investigated by current-voltage measurement.
The best result has been obtained with the cell that was prepared using the immediately prepared
photoanode at 80 °C, reaching an efficiency of 0.1947 %.
Como referenciar
SILVA, P.M.; SERNA, M.M.; GALEGO, E.; FARIA, R.N. Influence of dye adsorption temperature and time on the performance of dye sensitized solar cells. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 24., 6-10 de novembro, 2022, Águas de Lindóia, SP. Resumo... Disponível em: http://repositorio.ipen.br/handle/123456789/33746. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.