Inkjet Printing of Titanium Dioxide Photoanodes for Dye Sensitized Solar Cells

Content Provider	Semantic Scholar
Author	Johnson, Jeffrey Jiao, Lihong
Copyright Year	2014
Abstract	Inkjet printing of TiO 2 potentially offers a high degree of control over the deposition of TiO 2 suspensions. Previous use of inkjet printing for TiO 2 depositions have focused on producing TiO 2 films with uniform density. A multi-ink printing system offers the possibility of depositing TiO 2 films with variable density using a single deposition method. For this research, inkjet printing of TiO 2 films with a graded density profile was explored as a means of improving dye sensitized solar cells (DSSCs) performance. Varying pore volume as a means to produce density variations in TiO 2 layers was explored. To control the pore volume, several TiO 2 suspensions were developed with different pore-forming additives. DSSCs with printed TiO 2 films having three density layers showed an average improvement in the conversion efficiency of 127% versus those with a single layer and 45% versus those with dual- layer TiO 2 . Short-circuit current densities of cells with tri-layer films increased an average of 62% over those with a single layer and 17% over those with dual-layer TiO 2 . It was also shown that DSSCs with inkjet printed TiO 2 layers performed better than those with spin-coated TiO 2 layers. The results effectively demonstrated the potential for using inkjet printing as a sole deposition method to produce TiO 2 films with non-uniform density leading to improved DSSC performance. One possibility for further study is to create further layer variations through simultaneous printing of different suspensions.
File Format	PDF HTM / HTML
DOI	10.1557/opl.2014.901
Alternate Webpage(s)	http://scholarworks.gvsu.edu/cgi/viewcontent.cgi?article=1304&context=theses
Alternate Webpage(s)	https://doi.org/10.1557/opl.2014.901
Volume Number	1667
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article