Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
Title A Study on the Characteristics of Dye Sensitized Solar Cells with TiO2 Thickness and Sintering Temperature
Authors 이영민(Lee, Young-Min) ; 이돈규(Lee, Don-Kyu)
Page pp.1233-1238
ISSN 1975-8359
Keywords Dye Sensitized Solar Cell ; TiO_2 Thickness ; Sintering Temperature ; Anatase ; Rutile
Abstract In this thesis, it is investigated the characteristics of Dye Sensitized Solar Cell (DSSC) according to variation of TiO_2 thickness (6, 12, 18, and 24μm) and three distinct TiO_2 sintering temperatures (350, 450 and 550°C) by XRD, SEM, I-V and UV-Vis spectrophotometer. According to sintering temperature, TiO_2 was transformed into the anatase structure at 350°C, rutile structure at 550°C and further into the two structure at 450°C. With increasing thickness up to 18μm and sintering temperature up to 450°C, respectively, the irradiance rate increased in the range of 9~26 percent and 2.80~5.10 percent. Whereas a further increase to 24μm and 550°C, the irradiance rate decrease in the range of 4~11 percent and 30~47 percent. The conversion efficiency increased in the range of 2.80~5.01 and 3.03~5.01 with increasing thickness up to 18μm and sintering temperature up to 450°C. By contrast, increase to 24μm and 550°C, the conversion efficiency decreased in the range of 3.31~5.01 and 2.80~3.89, respectively. The DSSC that thickness of TiO_2 were 18μm and sintered at 450°C exhibited the most excellent characteristics, in which open-circuit voltage, short-circuit current, Fill Factor and conversion efficiency are 0.69 V, 11.4mA/cm^2, 0.64 and 5.01%, respectively.