Synthesis of Tungstate Thin Films and Their Optical Properties
作者： Nobuhiro Saito , Akihiko Kudo , Tadayoshi Sakata
DOI: 10.1246/BCSJ.69.1241
关键词:
摘要: A simple and new synthetic method of tungstate thin films (CaWO4, MgWO4, PbWO4, ZnWO4) was developed. The absorption luminescence spectra synthesized on quartz substrates were measured; the optical properties also studied. It found that CaWO4 has Eg = 5.4 eV a direct transition nature. Tungstate strongly luminescent when irradiated with UV-light. Excitation at around 290 nm interpreted as singlet–triplet transition.
csj.jp参考文章(12)
Frank Stern, Elementary Theory of the Optical Properties of Solids Solid State Physics. ,vol. 15, pp. 299- 408 ,(1963) , 10.1016/S0081-1947(08)60594-9
Albert Einstein, None, Zur Quantentheorie der Strahlung Physikalische Zeitschrift. ,vol. 18, pp. 121- 128 ,(1917)
Shuji Oishi, Minoru Hirao, Effect of Starting Compositions on the Growth of Calcium Tungstate Crystals from Sodium Tungstate Flux Bulletin of the Chemical Society of Japan. ,vol. 63, pp. 984- 987 ,(1990) , 10.1246/BCSJ.63.984
Hong Wang, F D Medina, D D Liu, Ya-Dong Zhous, The line shape and zero-phonon line of the luminescence spectrum from zinc tungstate single crystals Journal of Physics: Condensed Matter. ,vol. 6, pp. 5373- 5386 ,(1994) , 10.1088/0953-8984/6/28/012
Wolfgang Walter, Keith H. Butler, Electronic Structure of the Vanadate and Tungstate Complexes Journal of The Electrochemical Society. ,vol. 116, pp. 1245- 1250 ,(1969) , 10.1149/1.2412289
S. P. McGlynn, T. Azumi, D. Kumar, Color phenomenon in post-transition-metal salts Chemical Reviews. ,vol. 81, pp. 475- 489 ,(1981) , 10.1021/CR00045A003
Robert G. Peterson, Richard C. Powell, Energy transfer in rare earth-doped CaWO4 after red edge excitation☆ Journal of Luminescence. ,vol. 16, pp. 285- 296 ,(1978) , 10.1016/0022-2313(78)90074-1
Woo‐Seok Cho, Masatomo Yashima, Masato Kakihana, Akihiko Kudo, Tadayoshi Sakata, Masahiro Yoshimura, Room‐temperature preparation of the highly crystallized luminescent CaWO4 film by an electrochemical method Applied Physics Letters. ,vol. 66, pp. 1027- 1029 ,(1995) , 10.1063/1.113563
R. Grasser, A. Scharmann, Luminescent sites in CaWO4 and CaWO4 : Pb crystals Journal of Luminescence. pp. 473- 478 ,(1976) , 10.1016/0022-2313(76)90125-3
G. Blasse, L.H. Brixner, Ultraviolet emission from ABO4-type niobates, tantalates and tungstates Chemical Physics Letters. ,vol. 173, pp. 409- 411 ,(1990) , 10.1016/0009-2614(90)87224-F