| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.1920 |
| 발표분야 |
재료 |
| 제목 |
Development of Mo-Compound/CNT-Graphene Composite Counter Electrodes for Efficient Quantum Dot-Sensitized Solar Cells |
| 초록 |
We developed several Mo-compound/CNT-RGO composites as newly-designed catalytic electrodes for use in quantum dot-sensitized solar cells (QDSSCs). These electrode composites exhibited synergy between the intrinsically high electrocatalytic activity of the Mo-compounds, the large surface area, and the high electrical conductivity of the CNT-RGO supports. Mo2N/CNT-RGO, Mo2C/CNT-RGO, and MoS2/CNT-RGO composites could be synthesized simply by controlling the precursors via the urea-glass route. XRD and TEM studies confirmed that the high-purity Mo-compounds were immobilized onto the CNT-RGO support, and the simultaneous reduction of GO occurred during the synthetic process. QDSSCs equipped with Mo2N/CNT-RGO and Mo2C/CNT-RGO counter electrodes exhibited enhanced photovoltaic performances and remarkable stabilities, both of which properties were superior to the corresponding properties of the MoS2/CNT-RGO and even the reference Au counter electrode. The EIS and Tafel polarization analysis verified the excellent electrocatalytic activities of the Mo2N/CNT-RGO and Mo2C/CNT-RGO composites. |
| 저자 |
설민수1, 윤덕현1, 김재영1, 장지욱1, 최민기1, 이재성2, 용기중1
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| 소속 |
1POSTECH, 2UNIST |
| 키워드 |
counter electrode; electrocatalyst; solar cell
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| E-Mail |
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| 원문파일 |
초록 보기 |
