이중층 티타늄 전극으로 구성된 TCO-less 염료감응형 태양전지 제작에 관한 연구 (Fabrication of Transparent Conductive Oxide-less Dye-Sensitized Solar Cells Consisting of Titanium Double Layer Electrodes)

서지정보

· 발행기관 : 대한전기학회
· 수록지 정보 : 전기학회논문지 / 60권 / 1호 / 114 ~ 118페이지
· 저자명 : 심충환, 김윤기, 김동현, 이해준, 이호준

초록

Dye-Sensitized Solar Cells(DSSCs) consist of a titanium dioxide(TiO2) nano film of the photo electrode, dye molecules on the surface of the TiO2 film, an electrolyte layer and a counter electrode. But two transparent conductive oxide(TCO) substrates are estimated to be about 60[%] of the total cost of the DSSCs. Currently novel TCO-less structures have been investigated in order to reduce the cost. In this study, we suggested a TCO-less DSSCs which has titanium double layer electrodes. Titanium double layer electrodes are formed by electron-beam evaporation method.
Analytical instruments such as electrochemical impedance spectroscopy, scanning electron microscope were used to evaluate the TCO-less DSSCs. As a result, the proposed structure decreases energy conversion efficiency and short-circuit current density compared with the conventional DSSCs structure with FTO glass, while internal series impedance of TCO-less DSSCs using titanium double layer electrodes decreases by 27[%]. Consequently, the fill factor is improved by 28[%] more than that of the conventional structure.

영어초록

Dye-Sensitized Solar Cells(DSSCs) consist of a titanium dioxide(TiO2) nano film of the photo electrode, dye molecules on the surface of the TiO2 film, an electrolyte layer and a counter electrode. But two transparent conductive oxide(TCO) substrates are estimated to be about 60[%] of the total cost of the DSSCs. Currently novel TCO-less structures have been investigated in order to reduce the cost. In this study, we suggested a TCO-less DSSCs which has titanium double layer electrodes. Titanium double layer electrodes are formed by electron-beam evaporation method.
Analytical instruments such as electrochemical impedance spectroscopy, scanning electron microscope were used to evaluate the TCO-less DSSCs. As a result, the proposed structure decreases energy conversion efficiency and short-circuit current density compared with the conventional DSSCs structure with FTO glass, while internal series impedance of TCO-less DSSCs using titanium double layer electrodes decreases by 27[%]. Consequently, the fill factor is improved by 28[%] more than that of the conventional structure.

참고자료

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