Enhancement of TIO2 Interconnection Using Sol - Gel Processed Nanoglue for Plastic Dye-sensitized Solar Cells

Title
Enhancement of TIO2 Interconnection Using Sol - Gel Processed Nanoglue for Plastic Dye-sensitized Solar Cells
Authors
리위롱이도권김경곤박남규고민재
Keywords
Dye-sensitized solar cells; Plastic; sol-gel; nanoglue
Issue Date
2009-12
Publisher
2009 MRS fall meeting
Citation
, 243-243
Abstract
The formation of well-necked TiO2 electrode at low temperature is critical for plastic dye-sensitized solar cells (DSSCs). However, low temperature process cannot provide good interparticle connection as conventional high temperature process does. Therefore, enhancement of interconnection at low temperature is required for high efficiency plastic DSSCs. A TiO2 colloidal sol as a "glue" agent was developed by hydrolysis and polycondensation of titanium alkoxides to enhance interconnection. The crystalline phase of this TiO2 glue is pure anatase with average particles size of less than 10 nm, which was characterized by powder X-ray diffraction (XRD) and high revolution transmission electron microscopy (HRTEM). The viscous alcoholic paste without organic binder was prepared with commercial P25 powder and this TiO2 glue. The photovoltaic performance was optimized with variation of paste composition and process parameters. The conversion efficiency of 5.8% and 4.3% were achieved on FTO/glass and ITO/PEN substrate, respectively. Further improvement of cell performance with this TiO2 glue system is in progress.
URI
http://pubs.kist.re.kr/handle/201004/36981
Appears in Collections:
KIST Publication > Conference Paper
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