Effect of copper on the growth morphology and characterization of zinc mercury thiocyanate crystals

P. Jagdish; N.P. Rajesh

Journal of Industrial and Engineering Chemistry, Vol.18, No.6, 2157-2161, November, 2012

DOI10.1016/j.jiec.2012.06.012 Export Citation

Effect of copper on the growth morphology and characterization of zinc mercury thiocyanate crystals

P. Jagdish, and N.P. Rajesh^{1, †}

Sona College of Technology, Salem, Tamilnadu, India
¹Crystal Growth Centre, SSN College of Engineering, Kalavakkam, Chennai, India

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Single crystals of copper doped zinc mercury thiocyanate ZnHg(SCN)4 have been successfully grown by diffusion process in silica gel medium at a pH of 2.8. The crystals were characterized using X-ray diffraction analysis, Fourier transform infrared spectroscopy, UV optical studies, SHG studies EDAX and thermogravimetric analysis. Strong absorption bands due to SCN were revealed and UV cut off wavelength was recorded. The crystal system was identified as tetragonal-disphenoidal class with I4 space group which is a modified system in the family of ZMTC crystals. The copper doped ZMTC single crystal exhibits enhanced nonlinear optical properties compared to pure ZMTC.

Keywords:Thiocyanate;Gel growth;X-ray diffraction;NLO crystals

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[2] Kumar SMR, Melikechi N, Selvakumar S, Sagayaraj P, J. Cryst. Growth, 311(8), 2454 (2009)

[3] Ramachandra Raja C, Vijayabhaskaran B, Vijayan N, Paramasivam P, Materials Letters., 62, 2737 (2008)

[4] Sankar R, Raghavan CM, Kumar RM, Jayavel R, J. Cryst. Growth, 305(1), 156 (2007)

[5] Joseph GP, Philip J, Rajarajan K, Rajasekar SA, Pragasam AJA, Thamizharasan K, Kumar SMR, Sagayaraj P, J. Cryst. Growth, 296(1), 51 (2006)

[6] Wang XQ, Xu D, Lu MK, Yuan DR, Cheng XF, Li SG, Huang J, Wang SL, J. Cryst. Growth, 245(1-2), 126 (2002)

[7] Yuan D, Zhong Z, Liu M, Xu D, Fang Q, Bing Y, Sun S, Jiang M, Journal of Crystal Growth., 186, 240 (1998)

[8] Blank Z, Journal of Crystal Growth., 18, 281 (1973)

[9] Santha Kumari PN, Kalainathan S, Nambi Raj NA, Mater. Res. Bull., 42(12), 2099 (2007)

[10] Wang XQ, Xu D, Cheng XF, Lu MK, Yuan DR, Huang J, Lu GW, Ning HX, Duan XL, Wang ZM, Lu GT, Li SG, Chen Y, Zhou YQ, Mater. Res. Bull., 37(11), 1859 (2002)

[11] Wang XQ, Xu D, Lu MK, Yuan DR, Zhang GH, Meng FQ, Guo SY, Zhou M, Liu JR, Li XY, Crystal Research and Technology., 36(1), 73 (2001)

[12] Duan XL, Yuan DR, Wang XQ, Cheng XF, Yang ZH, Guo SY, Sun HQ, Xu D, Lu MK, Crystal Research and Technology., 37(5), 446 (2002)

[13] Bergman JG, McFee JH, Crane GR, Materials Research Bulletin., 5, 913 (1970)

[14] Xu D, Yu WT, Wang XQ, Yuan DR, Lu MK, Yang P, Guo SY, Meng FQ, Jiang MH, Acta Crystallographica., 55C, 1203 (1999)

[15] Sturmer W, Deserno U, Physics Letters A., 32(7), 539 (1970)

[16] Joseph GP, Korah I, Raja Rajan K, Thomas PC, Vimalan M, Madhavan J, Sagayaraj P, Crystal Research and Technology., 42(3), 295 (2007)

[17] Kurtz XK, Perry TT, Journal of Applied Physics., 39, 3798 (1968)