TY - JOUR
T1 - Restructuring of dye layers in dye sensitized solar cells
T2 - Cooperative adsorption of N719 and chenodeoxycholic acid on titania
AU - Trilaksana, Herri
AU - Shearer, Cameron
AU - Kloo, Lars
AU - Andersson, Gunther G.
N1 - Funding Information:
H.T. acknowledges support through a scholarship from the Indonesian Government. The authors acknowledge the expertise, equipment and support provided by the Australian Microscopy and Microanalysis Research Facility (AMMRF) and the Australian National Fabrication Facility (ANFF) at the South Australian nodes of the AMMRF and ANFF under the National Collaborative Research Infrastructure Strategy.
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2019/1/28
Y1 - 2019/1/28
N2 - 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.
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.
KW - Co-adsorbent
KW - Concentration depth profiles
KW - Dye sensitized solar cells
KW - Monolayer
KW - Multilayer
KW - Neutral impact collision ion scattering spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85065224952&partnerID=8YFLogxK
U2 - 10.1021/acsaem.8b01864
DO - 10.1021/acsaem.8b01864
M3 - Article
AN - SCOPUS:85065224952
SN - 2574-0962
VL - 2
SP - 124
EP - 130
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 1
ER -