| 학회 |
한국재료학회 |
| 학술대회 |
2007년 가을 (11/02 ~ 11/02, 성균관대학교) |
| 권호 |
13권 2호 |
| 발표분야 |
에너지환경재료 |
| 제목 |
Comparative analysis of multi-walled CNT based electrodes as counter electrodes in dye-sensitized solar cells employing |
| 초록 |
Dye-sensitized solar cells(DSSCs) is of great interest as one of renewable energy sources. So far, many investigations related to TiO2 electrode, dye, electrolyte etc. were carried out. In recent years, carbon structures with many advantages have been studied as a new counter electrode materials replacing metal counter electrode. We prepare multi-walled carbon nanotubes (MWNTs) with different diameter as counter electrode material of DSSCs. MWNTs on p-type Si substrate are grown by thermal chemical vapor deposition (CVD) method. Iron nanoparticles are used as catalysts for growing MWNTs. In this electrochemical cell, MWNTs electrode is a working electrode and Pt plate is a counter and reference electrode. The structural properties of MWNTs are investigated by field-emission scanning electron microscopy (FE-SEM). Electrochemical properties of MWNTs are measured by electrochemical impedance spectroscopy (EIS) and energy conversion efficiencies of DSSCs are measured under solar simulator. Based on the results of I-V properties of DSSCs, MWNTs electrode with the larger diameter has shown the higher open circuit voltage and the short circuit current. |
| 저자 |
김금채1, 황숙현1, 문준희1, 이수경1, 이동윤2, 김도현3, 전민현1
|
| 소속 |
1인제대, 2한국 전기 (연), 3광전기 연구 그룹 |
| 키워드 |
Carbon nanotube; dye-sensitized solar cell; electrode; impedance; energy conversion efficiencies
|
| E-Mail |
|
