報告題目：Broad Bandgap Semiconductor Oxides with One-dimensional Arrays for Clean Energy and Environmental Applications

報 告 人：闕文修 教授 

報告時間：2014年11月13日（星期四）下午2:00

報告地點：材料科學與工程學院  1C-202

參加人員：材料科學與工程學院全體研究生，化學與化工學院、資源與環(huán)境學院相關(guān)專業(yè)研究生，歡迎廣大師生參加！

有關(guān)要求：參加人員提前20分鐘到場，并關(guān)閉手機或設(shè)置為靜音狀態(tài)。

研究生院 材料學院

2014年11月10日

報告人簡介：

闕文修，1995年獲西安交通大學電子材料與元器件專業(yè)工學博士學位；1996年3月-1998年2月新加坡國立大學工程學院博士后；1998年2月-2005年12月底新加坡南洋理工大學電子與電氣工程學院和材料科學與工程學院研究員；2006年初起，西安交通大學電子與信息工程學院教授、博士生導師，西安交通大學“騰飛人才計劃”特聘教授，上海華東師范大學兼職教授。

自從2006年初回國工作以來作為項目主持人先后承擔了國家自然科學基金重大研究計劃項目、面上項目、國家863計劃項目、教育部博士點基金優(yōu)先發(fā)展領(lǐng)域項目（重點項目）、陜西省科技攻關(guān)項目、國際合作重點項目、美國應用材料基金項目等。

目前主要從事納米復合材料的新能源和環(huán)境應用（太陽能和光催化應用）；染料和半導體量子點敏化太陽能電池；半導體化合物薄膜太陽能電池；有機薄膜太陽能電池；有機-無機納米復合光電信息材料與器件；納光子與生物光子材料與器件；透明激光陶瓷等的研究。

報告簡介：

Semiconductor oxides (such as TiO₂ or ZnO) have attracted more and more attentions since they have great potential applications including solar cells, sensors, photocatalysts, light-emitting diodes and biomedicine, due to their non-toxicity to humans and environment, good mechanical and chemical stability. One-dimensional semiconductor oxide nanostructures such as nanorods, nanowires, nanobelts, and nanotubes oxides nanostructures exhibit superior physical properties as compared with conventional bulk materials, which mainly arise from the quantum-confinement effects and their large specific area, therefore, many efforts have been made to achieve such nanostructures. Here, aligned one-dimensional semiconductor oxide nanostructures for solar energy and environmental applications were fabricated and characterized. Especially, highly ordered TiO₂ nanotube and ZnO nanowire arrays were prepared by anodization of titanium foils or titanium films deposited on transparent conductive oxide glass in ethylene glycol containing fluorine ions. Under mild hydrothermal conditions, oriented single-crystalline TiO₂ nanowire arrays grows directly on a fluoride-doped tin oxide substrates are also prepared and characterized for high efficient solar cells. Finally, the as-prepared TiO₂ and ZnO nanostructure arrays were studied and used for solar cells including dye-sensitized solar cells, quantum dot sensitized solar cells, and photocatalytic applications.