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Institute for Single Crystals

National Academy of Sciences of Ukraine

61001, Ukraine, Kharkiv, 60 Nauky Ave., phone/fax: +38(057)340-86-19, e-mail: info@iscrystals.com

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Sapphire Substrates for Micro- and Optoelectronics

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News

Mortar and pestle from especially pure sapphire

11.09.2015

Mortar is designed for crushing substances which can not be milled in the ceramic or metallic mortars. Made from single crystal of  synthetic sapphire.
External diameter – 80mm, height – 41mm, hemisphere diameter – 65mm.
Dimensions can be corrected according to customer.

Step-terrace structure on the vicinal (0001) surface of sapphire substrates are fabricated

21.04.2015

The sapphire substrates (0001) with nanostructured surface with uniform distribution of terraces and steps in width from 38 to 2000 nm are fabricated. The width of steps increases with decreasing the angle of deflection geometric surface from a crystallographic plane. Height of steps nearby 0.22нм.



The non linear optic single crystals Ca10M(VO4)7 (M = Li, Na, K) have been grown

20.10.2014

The new promising non linear optic single crystals Ca10M(VO4)7 (M = Li, Na, K) have been grown for the first time. Cylindrical crystals of diameter up to 25 mm and length up to 50 mm were grown from a [001] oriented seed by the Czochralski technique.

Optical sapphire disks for digital information storage are made

11.07.2014

Sapphire disks which can be used as optical carriers for storage, dessimination and archiving of the digital information are made.




Large-size sapphire single crystal (350х540х30 мм3) are grown

30.10.2013

Large-size sapphire single crystal (350х540х30 мм3) are grown by Horizontal Directed Solidification Method (HDSM) in the protective gas atmospheres.


New scintillation ceramics Lu2O3:Eu3+ has been fabricated

09.04.2013

Lu2O3:Eu3+ optical ceramics with relative density of 98±2 % and average grain size of 50 mm has been produced.



New nanohybride films for emissive layers of white electroluminescence divices

17.01.2013

New thin film electroluminescence material on the base of the  polymer photoconductor  and  the semiconductor nanocrystals is developed.



The promising non linear optic single crystals Ca9Ln(VO4)7 (Ln – Y, La, Gd) have been grown by the Czochralski method

10.09.2012

The promising non linear optic single crystals Ca9Ln(VO4)7 (Ln – Y, La, Gd) have been grown by the Czochralski method. The deviation from Ca/Ln stoichiometric ratio in the crystals was observed. The magnitude of deviation is increasing from Y to Gd.

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Our adress:


61001, Kharkov, 60 Lenin Ave.
phone:  +38(057)340-86-19,
fax:       +38(057)340-86-19,
e-mail:   info@iscrystals.com