| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
콜로이드계면화학_포스터 |
| 제목 |
Preparation of TiO2 coated Ag nanowire and their application for dye sensitized solar cells (DSSCs) |
| 초록 |
To apply for dye-sensitized solar cell, the thermal-stable core-shell structured Ag@TiO2 was prepared using solvothermal method after functionalization of Ag nanowire via a chemical binder between Ag and TiO2. Ag nanowire was synthesized with polyvinylpyrrolidone in glycerol through facile microwave assisted alcohol method. The synthesized Ag has a uniform morphology without other shapes and their diameter and length were 40-50 nm and 20-30 μm, respectively. By using surface modification with 2-mercaptoethanol, the surface of Ag nanowire was functionalized with thiol groups. The Ag-TiO2 composite wire was prepared via solvothermal route at 120 ºC and the core-shell structured Ag@TiO2 nanowire could be acquired by varying the concentration of titanium butoxide as a TiO2 precursor and the TiO2 shell having a 20 nm of thickness indicated the anatase crystal structure. The Ag@TiO2 nanowire exhibited high thermal stability at above 500 ºC. The high conversion efficiency (5.6 %) of fabricated cell with Ag@TiO2 electrode could be achieved by enhancement of JSC. The core-shell structured Ag@TiO2 wire could reduce the charge recombination by attribution to electron shortcut for the improvement of electron transfer rate and lifetime. |
| 저자 |
장인석, LEONGHUIJUN, 오성근
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| 소속 |
한양대 |
| 키워드 |
Ag@TiO₂ nanowire; 2-mercaptoethanol; electron transfer
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| E-Mail |
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