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Author(s): Cláudia Costa
Isabel Mesquita
Luísa Andrade
Adélio Mendes
Title: Photoelectrochromic devices: Influence of device architecture and electrolyte composition
Issue Date: 2016
Abstract: Solar energy harvesting and chromogenic technologies can be integrated together to give self-poweredand wireless photoelectrochromic devices (PECD). Due to the similarity in the architecture of both dyesensitized solar cells (DSC) and electrochromic devices (ECD), it is possible to merge these two devicesinto one combined solar-powered electrochromic device known as DSC-EC. The present work describesthe preparation and characterization of electrochromic solar cells using PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate) as electrochromic material in the counter-electrode.Different configurations and liquid and polymer-based electrolytes are studied. The resultingelectrochromic solar cells were characterized focusing on the determination of solar to electricityconversion efficiency and the color contrast was assessed using color coordinates under simulated solarirradiation. The best DSC-EC configuration originates a color contrast of (DE = 30) at a potential differenceof 0.4 V and energy conversion efficiency of 4.9% at VOC of 0.66 V and JSC of 11 mAcm2, when using theliquid electrolyte. On the other hand, the best performing DSC-EC using the polymer-based electrolyteshowed a very good color contrast of (DE = 47) at short circuit and an energy conversion efficiency of 1% atVOC of 0.63V and JSC of 4.5 mAcm-2.
Subject: Química solar
Solar chemestry
Related Information: info:eu-repo/grantAgreement/COMISSÃO EUROPEIA/7.º Programa-Quadro de IDT/321315/Building Integrated Dye Sensitized Solar Cells/BI-DSC
info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/UID/EQU/00511/2013 - POCI-01-0145-FEDER-006939/Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia/LEPABE
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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