分别采用恒电流电化学技术和原电池电化学技术在钼片上制备出了具有单一白钨矿结构的钼酸钡薄膜,并对薄膜的相结构、表面形貌、元素价态及钼材料的利用率进行了深入的比较研究.研究发现,两条电化学路线制备的钼酸钡薄膜都是结晶良好的,具有单一的白钨矿结构;晶粒呈四方锥形;薄膜中的钡、钼和氧元素分别表现为+2、+6和-2价.但采用原电池路线时,钼酸钡薄膜更加致密,晶粒更加均匀,表面较为平坦;而且,电化学溶解的钼能够更好地凝聚成钼酸钡附着在阳极表面;与之相对应,在恒电流条件下,有相当大一部分钼酸根离子扩散进入了电解液中.
参考文献
| [1] | Basiev T T;Sobol A A;Voronko Y K et al.[J].Optical Materials,2000,15:205-216. |
| [2] | Pavel C;Zverev P G;Jelinkova H et al.[J].Optics Communication,2000,177:397-404. |
| [3] | Kroger F A.Some Aspects of the Luminescence of Solids[M].Amsterdam:elsevier,1948:107. |
| [4] | Huang J Y;Jia Q X .[J].Thin Solid Films,2003,444:95-98. |
| [5] | Kashiwakura Y;Kanehisa O .[P].JP 1263188,1989. |
| [6] | Feldman C .[J].J Soc Motion Pict Eng,1958,67:455. |
| [7] | F.M. Pontes;M.A.M.A. Maurera;A.G. Souza .Preparation, structural and optical characterization of BaWO_4 and PbWO_4 thin films prepared by a chemical route[J].Journal of the European Ceramic Society,2003(16):3001-3007. |
| [8] | Yoshimura M;Ohmura M;Cho W S et al.[J].Journal of The American Chemical Society,1997,80(09):2464-2466. |
| [9] | Cho W S;Yashima M;Kakihana M et al.[J].Journal of The American Chemical Society,1995,78(11):3110-3112. |
| [10] | Cho W S;Yashima M;Kakihana M et al.[J].Applied Physics Letters,1995,66(09):1027-1029. |
| [11] | Cho W S;Yashima M;Kakihana M et al.[J].Applied Physics Letters,1996,68(01):137-139. |
| [12] | 陈连平,肖定全,毕剑,余萍,杨祖念,于光龙,朱建国.钼酸钡薄膜的室温电化学制备工艺技术研究[J].功能材料,2005(01):127-128,132. |
| [13] | 余萍;陈连平;肖定全 .一种白钨矿发光膜的制备方法[P].CN 200510022471.3,2005. |
| [14] | JCPDS,card No.72-0747[Z]. |
| [15] | Wagner C D;Riggs W M;Davis L E.Handbook of X-ray Photoelectron Spectroscopy[M].Minnesota (USA):Perkin-Elemer Corporation and Physical Electroncs Divison,1979 |
| [16] | Bi J.;Xiao DQ.;Gao DJ.;Yu P.;Yu GL.;Zhang W.;Zhu JG. .BaMoO4 thin films prepared by electrochemical method at room temperature[J].Crystal Research and Technology: Journal of Experimental and Industrial Crystallography,2003(11):935-940. |
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