Browse > Article

Color-change for ligand field of cobalt doped yttria stabilized cubic zirconia (YSZ) single crystal  

Seok, Jeong-Won (Department of Gemological Engineering, dongshin University)
Choi, Jong-Koen (Department of Gemological Engineering, dongshin University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.17, no.1, 2007 , pp. 35-40 More about this Journal
Abstract
Cobalt ($Co^{2+}$) doped yttria stabilized cubic zirconia (YSZ, $Y_2O_3\;:\;25{\sim}50wt%$) single crystals grown by a skull melting method were heat-treated in $N_2\;at\;1000^{\circ}C$ for 5 hrs. The reddish brown single crystals were changed into either violet or blue color, respectively. Before and after heat treatment, the Co-doped YSZ crystals cut for wafers (${\phi}6.5{\times}t\;2mm$) and round brilliant (${\phi}10mm$). The optical and structural properties were examined by UV-VIS spectrophotometer and XRD. These results are analyzed absorption by $Co^{2+}\;(^4A_2(^4F)\to{^4P})\;and\;Co^{3+}$, change of energy gap and lattice parameter.
Keywords
YSZ; $Co^{2+}$; $Co^{3+}$; energy gap; lattice parameter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D.S. Chung and K.K. Orr, 'Cubic $ZrO_{2}$ single crystal growth by skull method: effect of melt homogenization in crystallization', J. Korean Ceramic Society, 27(5) (1990) 598
2 S.H. Kim, J.K. Choi, K.K Orr, YH. Cho, Y.J. Kim, B.I. Orh and WH. Kang, 'Single crystals growth of cubic zirconia by skull method', J. Korean Ceramic Society 25(2) (1988) 161-167   과학기술학회마을
3 R.F. Sekerka, RA. Hartzell and BJ. Farr, 'Instability phenomena during the RF heating and melting of ceramics', J. Crystal Growth 50 (1980) 787
4 M. Weller, B. Damson and A. Lakki, 'Mechanical loss of cubic zirconia', J. Alloys and Componds 310 (2000) 51
5 H. Romer, K.-D. Luther and W Assmus, 'Coloured Zirconia', Cryst. Res. Technol. 29(6) (1994) 787-794   DOI   ScienceOn
6 S. Ho. Kim, J.K. Choi, D.S. Chung and K.K. Orr, 'Colored cubic zirconia (CCZ) single crystal growth by skull method', J. Korean Ceramic Society 25(5) (1988) 443
7 WT. Kim, S.K. Oh, HJ. Song, K.D. Park, T.Y Park and H.L. Park, 'Optical properties of $\alpha-ZnGa_{2}Se_{4}\;:\;Co^{2+}$ single crystals', J. Korea Physical Society 37(1) (2000) 80
8 N. Shibata, J. Katamura, A. Kuwabara, Y lkuhara and T. Sakuma, 'The instability and resulting of cubic zirconia', Material Science and Engineering A 312 (2001) 90-98   DOI   ScienceOn
9 RI. Merino, Y.M. Orera, O. Povill, W Assmus and E.E. Lomonova, 'Optical and electron paramagnetic resonance characterization of $Dy^{3+}$ in YSZ single crystals', J. Phys. Chem Solids 58(10) (1997) 1579-1585   DOI   ScienceOn
10 D.R Kim, M.S. Jin and WT. Kim, 'Anomalous temperature dependence of the optical energy gaps and the optical absorption for undoped and $Co_{2+}-doped Cd_{4}GeS_{6}$ single crystal', J. Korean Physical Society 47(2) (2005) 334
11 C. Gross, W Assmus, A. Muiznieks, G. Raming, A. Muhlbauer and C. Stenzel, 'Power consumption of skull melting, Part I : Analytical aspects and experiments', Cryst. Res. Technol. 34(3) (1999) 322
12 K. Nassau, 'Gems made by man', Chilton Book Co., Randor, PA. (1980), 2322-45
13 C.H.L. Goodman, 'Crystal growth', Vol. 1 (plenum press, New York, London, 1980) pp. 109-184
14 M.A. Taylor, Chr. Argirusis, M. Kilo, G. borchardt, K.-D. Luther and W. Assmus, 'Correlation between ionic radius and cation diffusion in stabilized zirconia' Solid State Ionics 173 (2004) 51-56   DOI   ScienceOn