Restructuring of dye layers in dye sensitized solar cells: Cooperative adsorption of N719 and chenodeoxycholic acid on titania

Herri Trilaksana; Cameron Shearer; Lars Kloo; Gunther G. Andersson

doi:10.1021/acsaem.8b01864

Restructuring of dye layers in dye sensitized solar cells: Cooperative adsorption of N719 and chenodeoxycholic acid on titania

Herri Trilaksana, Cameron Shearer, Lars Kloo, Gunther G. Andersson

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The effect of the co-adsorbent chenodeoxycholic acid (CDCA) up to a concentration of 20 mM on the adsorption of the dye N719 onto titania has been investigated using neutral impact collision ion scattering spectroscopy. It is shown that the co-adsorption of CDCA changes the adsorption mode of N719 from multilayer toward monolayer. FT-IR spectroscopy shows that the adsorption of CDCA increases with increasing CDCA concentration. In contrast, the amount of N719 adsorbed onto titania shows a minimum at 10 mM CDCA, and the relationship between the amount of CDCA and of N719 adsorbed onto titania depends nonmonotonically on the CDCA concentration. The co-adsorption of CDCA and N719 can be described as cooperative. The effect is observed for both low and high N719 concentrations.

Original language	English
Pages (from-to)	124-130
Number of pages	7
Journal	ACS Applied Energy Materials
Volume	2
Issue number	1
DOIs	https://doi.org/10.1021/acsaem.8b01864
Publication status	Published - 28 Jan 2019

Keywords

Co-adsorbent
Concentration depth profiles
Dye sensitized solar cells
Monolayer
Multilayer
Neutral impact collision ion scattering spectroscopy

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10.1021/acsaem.8b01864

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title = "Restructuring of dye layers in dye sensitized solar cells: Cooperative adsorption of N719 and chenodeoxycholic acid on titania",

abstract = "The effect of the co-adsorbent chenodeoxycholic acid (CDCA) up to a concentration of 20 mM on the adsorption of the dye N719 onto titania has been investigated using neutral impact collision ion scattering spectroscopy. It is shown that the co-adsorption of CDCA changes the adsorption mode of N719 from multilayer toward monolayer. FT-IR spectroscopy shows that the adsorption of CDCA increases with increasing CDCA concentration. In contrast, the amount of N719 adsorbed onto titania shows a minimum at 10 mM CDCA, and the relationship between the amount of CDCA and of N719 adsorbed onto titania depends nonmonotonically on the CDCA concentration. The co-adsorption of CDCA and N719 can be described as cooperative. The effect is observed for both low and high N719 concentrations.",

keywords = "Co-adsorbent, Concentration depth profiles, Dye sensitized solar cells, Monolayer, Multilayer, Neutral impact collision ion scattering spectroscopy",

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AU - Shearer, Cameron

AU - Kloo, Lars

AU - Andersson, Gunther G.

PY - 2019/1/28

Y1 - 2019/1/28

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AB - The effect of the co-adsorbent chenodeoxycholic acid (CDCA) up to a concentration of 20 mM on the adsorption of the dye N719 onto titania has been investigated using neutral impact collision ion scattering spectroscopy. It is shown that the co-adsorption of CDCA changes the adsorption mode of N719 from multilayer toward monolayer. FT-IR spectroscopy shows that the adsorption of CDCA increases with increasing CDCA concentration. In contrast, the amount of N719 adsorbed onto titania shows a minimum at 10 mM CDCA, and the relationship between the amount of CDCA and of N719 adsorbed onto titania depends nonmonotonically on the CDCA concentration. The co-adsorption of CDCA and N719 can be described as cooperative. The effect is observed for both low and high N719 concentrations.

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KW - Concentration depth profiles

KW - Dye sensitized solar cells

KW - Monolayer

KW - Multilayer

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Restructuring of dye layers in dye sensitized solar cells: Cooperative adsorption of N719 and chenodeoxycholic acid on titania

Abstract

Keywords

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