采用自设计高温煅烧装置在NH3气氛下制备N掺杂ZnO,研究N掺杂ZnO(N-ZnO)的合成条件与ZnO带隙和光电转换效率之间的关系.通过改变NH3气压强、煅烧温度和煅烧时间得到不同N掺杂量的ZnO.采用扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)、X射线光电子能谱(XPS)、紫外-可见吸收光谱(UV-vis)对N-ZnO的形貌、晶体结构、掺杂价态以及光学性质进行分析.结果表明:N-ZnO为六方纤锌矿结构,N掺杂有效窄化ZnO带隙,导致其紫外-可见吸收光谱的吸收带边红移,以其为光阳极的染料敏化太阳能电池的光电转换效率从0.34％提高至1.02％.
参考文献
| [1] | 王旭东,易忠,沈自才,顾鹏飞.ZnO白漆的质子辐照损伤与光学性能退化机理[J].材料工程,2013(05):1-5. |
| [2] | 贺小文,孟大维,刘长珍,余小红,陈龙,谢静.ZnO以及Fe掺杂ZnO的光学性质和室温铁磁性研究[J].材料工程,2012(12):66-70. |
| [3] | Ying-Song Fu;Jing Sun;Yang Xie .ZnO hierarchical nanostructures and application on high-efficiency dye-sensitized solar cells[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2010(3):196-202. |
| [4] | WANG J;CHEN W;ZHOU Y et al.Direct growth of highly mismatched type Ⅱ ZnO/ZnSe core/shell nanowire arrays on transparent conducting oxide substrates for solar cell applications[J].Advanced Material,2008,20(17):3248-3253. |
| [5] | Lin Ke;Surani Bin Dolmanan;Lu Shen;Pramoda Kumari Pallathadk;Zheng Zhang;Doreen Mei Ying Lai;Hong Liu .Degradation mechanism of ZnO-based dye-sensitized solar cells[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2010(2):323-326. |
| [6] | Livraghi S;Paganini MC;Giamello E;Selloni A;Di Valentin C;Pacchioni G .Origin of photoactivity of nitrogen-doped titanium dioxide under visible light[J].Journal of the American Chemical Society,2006(49):15666-15671. |
| [7] | HU J;HE H Y;PAN B C et al.Hydrogen diffusion behaviour in N doped ZnO:first-principles study[J].Journal of Applied Physics,2008,103(11):113706. |
| [8] | I.V. Rogozin .Nitrogen-doped p-type ZnO thin films and ZnO/ZnSe p-n heterojunctions grown on ZnSe substrate by radical beam gettering epitaxy[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2009(15):4318-4321. |
| [9] | Oh DC;Kim JJ;Makino H;Hanada T;Cho MW;Yao T;Ko HJ .Characteristics of Schottky contacts to ZnO : N layers grown by molecular-beam epitaxy[J].Applied physics letters,2005(4):2110-1-2110-3-0. |
| [10] | Du GT;Ma Y;Zhang YT;Yang TP .Preparation of intrinsic and N-doped p-type ZnO thin films by metalorganic vapor phase epitaxy[J].Applied physics letters,2005(21):3103-1-3103-3-0. |
| [11] | DUNLOP L;KURSUMOVIC A;MACMANUS-DRISCOLL J L.Reproducible growth of p-type ZnO:N using a modified atomic layer deposition process combined with dark annealing[J].Journal of Applied Physics Letters,2008(93):172111. |
| [12] | NAKANO Y;MORIKAWA T;OHWAKI T.Electrical characterization of p-type N-doped ZnO films prepared by thermal oxidation of sputtered Zn3N2 films[J].Journal of Applied Physics Letters,2006(88):172103. |
| [13] | Hongen Nian;Sung Hong Hahn;Kee-Kahb Koo;Eun Woo Shin;Eui Jung Kim .Sol-gel derived N-doped ZnO thin films[J].Materials Letters,2009(26):2198-2200. |
| [14] | ZHU Y;LIN S H;ZHANG Y Z et al.Temperature effect on the electrical,structural and optical properties of N-doped ZnO films by plasma-free metal organic chemical vapour deposition[J].Applied Surface Science,2009,255(12):6201-6204. |
| [15] | Jing LQ.;Sun XJ.;Shang J.;Cai WM.;Xu ZL. .The surface properties and photocatalytic activities of ZnO ultrafine particles[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(3/4):308-314. |
| [16] | LOSURDO M;GIUVA D;BRUNO G et al.The surface modification and reactivity of LiGaO2 substrates during GaN epitaxy[J].Journal of Crystal Growth,2004,264(1-3):139-146. |
| [17] | Li ZQ.;Xiong YJ.;Xie Y. .Selected-control synthesis of ZnO nanowires and nanorods via a PEG-assisted route[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2003(24):8105-8109. |
| [18] | Chen M.;Yu YH.;Pei ZL.;Bai XD.;Sun C.;Huang RF.;Wen LS.;Wang X. .X-ray photoelectron spectroscopy and auger electron spectroscopy studies of Al-doped ZnO films[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2000(1/2):134-140. |
| [19] | S.Muthukumar;C.R.Gorla;N.W.emanetoglu .Control of morphology and orientation of ZnO thin films grown on SiO_2/Si substrates[J].Journal of Crystal Growth,2001(2/4):197-201. |
| [20] | Cong Y;Zhang JL;Chen F;Anpo M .Synthesis and characterization of nitrogen-doped TiO2 nanophotocatalyst with high visible light activity[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(19):6976-6982. |
| [21] | Zhou CJ;Kang JY .Modulation of band structure in wurtzite ZnO via site-selective Ga-N codoping[J].Journal of Physics. Condensed Matter,2006(27):6281-6287. |
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