Applications and Studies of Multi-Walled Carbon Nanotubes Counter Electrode by Hot Spray-Coated for Dye Sensitized Solar Cells
Date Issued
2009
Date
2009
Author(s)
Cheng, Yu-Shao
Abstract
The main purpose of the study is to research the preparation of counter electrode in dye-sensitized solar cell (DSSC), while the multi-walled carbon nanotubes (MWCNTs) counter electrode is adopted to take place of the traditional potassium counter electrode. Normal MWCNTs and acidic MWCNTs were coated with hot spray to the surface of the counter electrode of the DSSC. The surface structure was analyzed with SEM, and the electricity with conductivity meter. In order to fabricate the DSSC, TiO2 electrode was dipped in 3 x 10-4M N3 dye to absorb the dye, and the electrolyte in acetonitrile consisted of 0.05M I2, 0.5M LiI, and 0.5M 4-tert butyl Pyridine. The tested counter electrode assemblies were set with different transmittance as parameters so that we could measure the photon-to-electron conversion efficiency. According to the experimental results, a DSSC with the counter electrode constituted with normal MWCNTs and Carboxylmethyl Cellulose (CMC) solution, under transmittance 0%, had the best photon-to-electron conversion efficiency, 6.349 x 10-2%, and this kind of counter electrode is so far the best choice of ours to fabricate DSSC.
Subjects
dye sensitized solar cell
carbon nanotubes
spray pyrolysis
counter electrode
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-98-R95549019-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):1e2f89701062e5fdbe9e96e0705dfe92