Investigations on the structural, mechanical and photoconductive studies of pure and lanthanum doped potassium pentaborate single crystals

B  Munirathnam  and J  Madhavan

doi:10.17485/ijst/2009/v2i2.8

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Investigations on the structural, mechanical and photoconductive studies of pure and lanthanum doped potassium pentaborate single crystals

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2009/v2i2.8

Year: 2009, Volume: 2, Issue: 2, Pages: 44-45

Original Article

Investigations on the structural, mechanical and photoconductive studies of pure and lanthanum doped potassium pentaborate single crystals

B. Munirathnam¹ and J. Madhavan^2*

¹Department of Physics, Sir Theagaraja College, Chennai – 600 021, India.
²Department of Physics, Loyola College, Chennai – 600 034.

*Author for the correspondence:
J. Madhavan
Department of Physics, Loyola College,
Chennai – 600 034.
E-mail:[email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Single crystals of pure and lanthanum doped potassium pentaborate (KB5) have been successfully grown by slow solvent evaporation technique. The grown crystals are confirmed by powder X-ray diffraction (PXRD). The mechanical strengths of the pure and doped crystals were found out using Vicker’s micro hardness tests. The Second Harmonic Generation (SHG) of the crystals are confirmed by Nd:YAG pulsed laser employing Kurtz powder technique. The photoconductive studies reveal the negative photoconductive nature of the grown crystals.

Keywords: Lanthanum, potassium pentaborate, crystal growth.