| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 가을 (10/22 ~ 10/24, 대전 DCC) |
| 권호 |
20권 2호, p.1995 |
| 발표분야 |
재료 |
| 제목 |
Thermally stable Double-layered amorphous-SnO2/AZO Transparent conducting oxide for Dye-sensitized solar cells |
| 초록 |
Thin SnO2 layer was deposited on AZO film by rf magnetron sputtering to improve thermal stability up to 500 oC. The thermal stability was higher when the SnO2 layer was grown as amorphous phase than crystalline phase. The thickness of amorphous-SnO2 layer varied from 2.5 nm to 21.8 nm, showing the highest thermal stability with 13.9 nm. To investigate the protective effect according to the thicknesses of SnO2 layers, the amount of oxygen vacancies in AZO layer was analyzed by XPS spectra of O 1s. The sheet resistance of SnO2(13.9 nm)/AZO double-layered film increased by 1.35 times from 4.0 Ω/square to 5.4 Ω/square after annealing at 500 oC in air atmosphere. The average transmittance was 83.4% in the visible region. The transmittance decrement by SnO2 (13.9 nm) layer was 1.3%. The reason for showing small decrements was due to extremely low thickness of SnO2 layer. Because the SnO2 was grown as amorphous phase, it was able to provide good protection against oxygen even though the thickness was very low. |
| 저자 |
이희상, 우성일
|
| 소속 |
KAIST |
| 키워드 |
Transparent conducting oxide; Dye-sensitized solar cells
|
| E-Mail |
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| 원문파일 |
초록 보기 |
