| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Quantum Dot-Sensitized Solar Cells based on CdS and CdSe Quantum Dots |
| 초록 |
We fabricated Quantum Dot-Sensitized Solar Cells (QDSSCs) using CdS and CdSe Quantum Dots (QDs) onto mesoporous titanium oxide (TiO2). The CdS and CdSe QDs used as light absorbing materials are prepared over mesoporous TiO2 by Successive Ionic Layer Adsorption and Reaction (SILAR) process. The growth of the QDs was monitored by UV-visible absorption spectroscopy and the increase of absorption increasing the SILAR cycle numbers was verified. We prepared TiO2/CdS/CdSe solar cells to introduce a cascade of QD band gaps to facilitate the dissociation of photo-generated excitons in CdSe QDs. We changed platinium counter electrode to gold counter electrode to have the better stability and conductivity with polysulfide electrolyte. Also titanium(IV) isopropoxide (TIP) layer was introduced under mesoporous TiO2 layer as a blocking layer for improving the performance of the cell, especially, photocurrent and open-circuit voltage. |
| 저자 |
김미라, 김지선, 김미리
|
| 소속 |
부산대 |
| 키워드 |
Quantum Dots; Dye-Sensitized Solar Cells
|
| E-Mail |
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