基于PMo_(12)修饰的TiO_2纳米管薄膜光电转换效率提升研究
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摘要
为了抑制TiO_2纳米管薄膜发生光电转换时电子-空穴的复合,提高该纳米管薄膜的光电转换效率,文章利用H3PMo_(12)O40(PMo_(12))修饰TiO_2纳米管薄膜,然后将修饰后的纳米管复合薄膜组装成光伏电池,最后测量该光伏电池的光电转换效率,以此来研究PMo_(12)对TiO_2纳米管薄膜光电转换效率的影响。分析结果表明:利用PMo_(12)修饰的TiO_2纳米管薄膜的光电转换效率为5.4%,未利用PMo_(12)修饰的TiO_2纳米管薄膜的光电转化效率为0.36%,这说明PMo_(12)能够极大地提升TiO_2纳米管薄膜的光电转换效率。
In order to restrain the recombination of electron-hole of TiO_2 nanotubes membrane and improve its photoelectric conversion efficient, TiO_2 nanotube films were modified with H3 PMo_(12) O40(PMo_(12)). The photovoltaic cells were assembled with Pt as counterpart electrode. And then the photoelectric conversion efficiency was measured and the effect of PMo_(12) on the photoelectric conversion properties of Ti O_2 nanotube membranes was studied. The experimental results show that the photoelectric conversion efficiency of TiO_2 nanotube films modified with PMo_(12) was 5.40%,which is 15 times more than that of the unmodified(0.36%), indicating that PMo_(12) has a great effect on TiO_2 nanotube films,and its photoelectric conversion efficiency is improved remarkably.
In order to restrain the recombination of electron-hole of TiO_2 nanotubes membrane and improve its photoelectric conversion efficient, TiO_2 nanotube films were modified with H3 PMo_(12) O40(PMo_(12)). The photovoltaic cells were assembled with Pt as counterpart electrode. And then the photoelectric conversion efficiency was measured and the effect of PMo_(12) on the photoelectric conversion properties of Ti O_2 nanotube membranes was studied. The experimental results show that the photoelectric conversion efficiency of TiO_2 nanotube films modified with PMo_(12) was 5.40%,which is 15 times more than that of the unmodified(0.36%), indicating that PMo_(12) has a great effect on TiO_2 nanotube films,and its photoelectric conversion efficiency is improved remarkably.
引文
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[2]王露,高德东,刘海雄,等.高海拔荒漠地区光伏组件衰减机理分析[J].可再生能源,2017,35(8):1170-1175.
[3]章激扬,李达,杨苹,等.光伏发电发展趋势分析[J].可再生能源,2014,32(2):127-132.
[4] Luo Chunming, He Wei, Zhou Ke, et al.Crystal silicon solar cell thin film material current situation and development trend[J].Insulation Material,2012,45(3):29-33.
[5] Mor G,Varghese O,Paulos M,et al.A review on highly ordered, vertically oriented Ti O2nanotube arrays:Fabrication, material properties, and solar energy applications[J].Solar Energy Materials&Solar Cells,2006,90(14):2011-2075.
[6] Livraghi S,Votta A,Paganini M C,et al.The Nature of Papamagnetic species in nitrogen doped Ti O2active in visible light to catalysis[J].Chemical Commun,2005(4):498-500.
[7] Pan K, Zhou W, Tian G, et al. Dye-sensitised solar cells based on large-pore mesoporous Ti O2with controllable pore diameters[J].European Journal of Inorganic Chemistry,2011,30:4730-4737.
[8] Ai Yukai, Hou Xinggang, Sun Tingting, et al.Photoelectric properties of graphene deposited nitrogen ion implanted Ti O2nanotubes[J].Journal of Tianjin Normal University,2017,37(1):33-36.
[9] Zhang Sheng-Han,Liang Ke-Xin,Tan Yu. Preparation of Ti O2nanotube arrays with different cerium mixing morphology and their photo-electrochemical response in visible Light[J].Acta Physico-Chimica Sinica,2011,27(11):2726-2732.
[10] Radhakrishnan Sivakumar,Jesty Thomas,Minjoong Yoon.Polyoxometalate-based molecular/nano composites:Advances in environmental remediation by photocatalysis and biomimetic approaches to solar energy conversion[J].Journal of Photochemistry and Photobiology C:Photochemistry Reviews,2012,13(4):277-298.
[11] C M Teague,X Li,M E Biggin.Vibrational spectroscopy of a keggin polyoxometalate on metal electrode surfaces[J].The Journal of Physical Chemistry B,2004,108(6):1974-1985.
[12]李欢欢,陈润锋,马琮,等.阳极氧化法制备二氧化钛纳米管及其在太阳能电池中的应用[J].物理化学学报,2011,27(5):1017-1025.
[13] Gu C, Shannon C. Investigation of the photocatalytic activity of Ti O2-polyoxometalate systems for the oxidation of methanol[J].Journal of Molecular Catalysis,2007,262(1-2):185-189.