Dye-Sensitized Solar Cells with Electrospun Nanofiber Mat-Based Counter Electrodes

Autor: Junger, I. J., Wehlage, D., Bottjer, R., Timo Grothe, Juhasz, L., Grassmann, C., Blachowicz, T., Andrea Ehrmann
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Materials
Volume 11
Issue 9
Materials, Vol 11, Iss 9, p 1604 (2018)
Fachhochschule (FH) Bielefeld
ISSN: 1996-1944
DOI: 10.3390/ma11091604
Popis: Textile-based dye-sensitized solar cells (DSSCs) can be created by building the necessary layers on a textile fabric or around fibers which are afterwards used to prepare a textile layer, typically by weaving. Another approach is using electrospun nanofiber mats as one or more layers. In this work, electrospun polyacrylonitrile (PAN) nanofiber mats coated by a conductive polymer poly(3,4-ethylenedioxythiopene) polystyrene sulfonate (PEDOT:PSS) were used to produce the counter electrodes for half-textile DSSCs. The obtained efficiencies were comparable with the efficiencies of pure glass-based DSSCs and significantly higher than the efficiencies of DSSCs with cotton based counter electrodes. The efficiency could be further increased by increasing the number of PEDOT:PSS layers on the counter electrode. Additionally, the effect of the post treatment of the conductive layers by HCl, acetic acid, or dimethyl sulfoxide (DMSO) on the DSSC efficiencies was investigated. Only the treatment by HCl resulted in a slight improvement of the energy-conversion efficiency.
Databáze: OpenAIRE
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