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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/34691

Title: 電化學法成長摻雜鉬之氧化鋅奈米結構並應用於光電化學水分解
Characterization of molybdenum-doped ZnO nanostructure fabricated by electrochemical method for photoelectrochemical water splitting
Authors: Bing-Wei Lee
Contributors: NTOU:Institute of Optoelectronic Sciences
Keywords: 水分解;氧化鋅;電化學
water splitting;zinc oxide;electrochemistry
Date: 2012
Issue Date: 2013-10-07T02:45:27Z
Abstract: 本論文中,我們成功地利用電化學方法成長摻雜鉬的氧化鋅奈米結構並應用於光電化學水分解。我們的研究重點在於摻雜鉬後的氧化鋅能使能隙降低,進而增加光電水分解的效率。此外,我們也利用不同的儀器分析鉬摻雜氧化鋅與純氧化鋅之間的光電物理特性變化。我們發現鉬摻雜氧化鋅的結構與純氧化鋅比較,其結構有被壓縮的趨勢,且能隙確定能降低,以增加對太陽光能的吸收。 我們在太陽模擬光(100mW/cm2)的照射下,發現鉬摻雜氧化鋅的光電化學水分解電流值比純氧化鋅電流值高1.5倍,其轉換效率在0.4V偏壓附近也高出約1.4倍,我們實驗發現,鉬摻雜氧化鋅效率最高可達0.47%。
In the thesis, we successfully use electrochemical method to fabricate molybdenum-doped ZnO nanostructure and applied for photoelectrochemical water splitting. Our research emphasis is focus on reducing bandgap for enhanced photoelectrochemicl water splitting. In addition, we use different measurement to analyze properties of pure ZnO and molybdenum-doped ZnO.We found that molybdenum-doped ZnO structure becomes more compressive than pure ZnO. The band gap of molybdenum-doped ZnO has been reduced so that it can absorb more solar spectrum. In 100 mW/cm2 light power density radiation, we can find current of molybdenum-doped ZnO has 1.5 times bigger than pure ZnO. Its conversion efficiency is also about 1.4 times higher in near 0.4V bias.Its highest efficiency can reach 0.47%.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0019988026
Appears in Collections:[光電科學研究所] 博碩士論文

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