Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/37316
Title: | Influence of the meso-substituents of zinc porphyrins in dye-sensitized solar cell efficiency with improved performance under short periods of white light illumination |
Author: | Calmeiro, Joana M.D. Gira, Gabriel Ferraz, Francisco M. Fernandes, Sara R.G. Pinto, Ana L. Lourenço, Leandro M.O. Tomé, João P.C. Pereira, Cláudia C.L. |
Keywords: | Dye sensitized solar cells (DSSCs) Metalloporphyrin Dyes Macrocycles Carboxylic acid anchoring group TiO2 Photoconversion efficiency |
Issue Date: | Jun-2020 |
Publisher: | Elsevier |
Abstract: | The sensitization activity of four zinc metalloporphyrin dyes: meso-tetrakis(4-pyridyl)porphyrinato Zn(II) (a), meso-triphenyl-(4-carboxyphenyl)porphyrinato Zn(II) (b), meso-tetrakis(4-carboxyphenyl)porphyrinato Zn(II) (c) and meso-tripyridyl(4-carboxyphenyl)porphyrinato Zn(II) (d) is reported here, in terms of current-potential curve, open-circuit potential, fill factor, and overall solar energy conversion efficiency which have been evaluated under 100 mW/cm2 light intensity and their performances compared to the benchmark N719 (di-tetrabutylammonium cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato) ruthenium(II)). This work focus the structural aspects of dyes with anchoring groups using TiO2-based Dye Sensitized Solar Cells (DSSCs), which includes pyridyl and carboxyphenyl acid groups and argue how the combination of both anchoring groups, in the same structure, may allow relevant optimization of DSSCs performance in the near future. Also, a noticeable improvement in the photovoltaic performance of all dyes, reaching a maximum increase from 25% to 69% in the overall DSSC efficiency under short periods of white light illumination is discussed. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/37316 |
DOI: | 10.1016/j.dyepig.2020.108280 |
ISSN: | 0143-7208 |
Appears in Collections: | DQ - Artigos REQUIMTE - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Influence of the meso-substituents of zinc porphyrins in dye-sensitized solar.pdf | 1.71 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.