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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 김도진
- 발행연도
- 2018
- 저작권
- 충남대학교 논문은 저작권에 의해 보호받습니다.
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In recent years, the need for the development of renewable energy has been increasing against the rise of energy exhaust and environmental issue. Hydrogen is considered the most promising alternative energy source; therefore much effort has been devoted to harvest hydrogen from the renewable sources. The semiconducting photoelectrode that is used in the photoelectrochemical cell (PEC) can reduce the water to hydrogen under the photon radiation, which is known to be economical when the efficiency is higher than 10%. For this purpose, development of the nano-sized tandem structure, a protective film, and a catalyst technology have been extensively studied. Recently, we reported the nanostructured electrode that showed the high H2 production rate due to the enhanced photo absorption. Meanwhile, the optimum thickness was observed because there is trade-off between photo absorption and charge transport.
In this study, TiO2 nanowire molds that are widely used to manufacture electrodes were reduced to metallic magneli phase, Ti4O7, by heat treatment to improve the conductance of nanostructured electrodes, of which successful synthesis was confirmed by X-ray diffraction and scanning electron microscope. CdS nanofilms were deposited on TiO2/Ti4O7 nanorod to study photoelectric cell performance. Furthermore, function of the junction between layers was also investigated.
In this study, TiO2 nanowire molds that are widely used to manufacture electrodes were reduced to metallic magneli phase, Ti4O7, by heat treatment to improve the conductance of nanostructured electrodes, of which successful synthesis was confirmed by X-ray diffraction and scanning electron microscope. CdS nanofilms were deposited on TiO2/Ti4O7 nanorod to study photoelectric cell performance. Furthermore, function of the junction between layers was also investigated.
목차
1. 서론 ?????????????????????????????????????????? 12. 이론적 배경 ??????????????????????????????????? 32.1 광전기 화학전지???????????????????????????????? 32.1.1 광전기 화학전지의 종류????????????????????????? 52.1.2 광전기 화학전지의 효율????????????????????????? 82.2 마그넬리 상 ?????????????????????????????????? 122.3 CdS ?????????????????????????????????????????? 152.4 수열합성법 ??????????????????????????????????? 163 실험방법 ????????????????????????????????????? 183.1 TiO2씨앗 층 증착?????????????????????????????? 183.2 마그넬리 상 합성 ????????????????????????????? 203.3 광전류밀도 측정 ?????????????????????????????? 214. 결과 및 고찰 ????????????????????????????????? 225. 결론 ????????????????????????????????????????? 346. 참고문헌 ????????????????????????????????????? 357. ABSTRACT ????????????????????????????????????? 37
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