TY - GEN
T1 - A study of DSC using ultrasonic and thermal treatment on nano-crystalline TIO2 surface
AU - Hong, Ji Tae
AU - Seo, Hyunwoong
AU - Sim, Ji Young
AU - Kim, Hee Je
PY - 2007/12/1
Y1 - 2007/12/1
N2 - Recently, there were many researches for efficiency improvement of DSC. Among of these works, research of surface treatment is still a prerequisite things for electron diffusion, light-harvesting and surface state of DSC[1]. Using of the surface treatment, it can be raise up porosity of TiO2 nano-crystalline structure on photo-electrode[2-5]. There are many ways to raise up its porosity such as chemical, physical, electrical and optical methods[7-9]. In this paper, we have designed and manufactured MOPA-PLL type ultrasonic circuit (100W, frequency and duty variable). Manufactured ultrasonic circuit to use to force physical vibration into TiO2 paste. Then, we have optimized forcing time, frequency and duty of ultrasonic irradiation for surface treatment of DSC photo-electrodes. In I-V characteristic test of DSC, ultrasonic and thermal treated DSC shows 19% improved its efficiency comparing with established DSC.
AB - Recently, there were many researches for efficiency improvement of DSC. Among of these works, research of surface treatment is still a prerequisite things for electron diffusion, light-harvesting and surface state of DSC[1]. Using of the surface treatment, it can be raise up porosity of TiO2 nano-crystalline structure on photo-electrode[2-5]. There are many ways to raise up its porosity such as chemical, physical, electrical and optical methods[7-9]. In this paper, we have designed and manufactured MOPA-PLL type ultrasonic circuit (100W, frequency and duty variable). Manufactured ultrasonic circuit to use to force physical vibration into TiO2 paste. Then, we have optimized forcing time, frequency and duty of ultrasonic irradiation for surface treatment of DSC photo-electrodes. In I-V characteristic test of DSC, ultrasonic and thermal treated DSC shows 19% improved its efficiency comparing with established DSC.
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M3 - Conference contribution
AN - SCOPUS:84875908886
SN - 9781622765447
T3 - ISES Solar World Congress 2007, ISES 2007
SP - 1690
EP - 1694
BT - ISES Solar World Congress 2007, ISES 2007
T2 - International Solar Energy Society Solar World Congress 2007, ISES 2007
Y2 - 17 September 2007 through 20 September 2007
ER -
