A Study on the Mechanical, Dielectric and Photoconducting Properties of Bisthiourea Potassium Chloride Single Crystal

Good quality single crystals of Bisthiourea Potassium Chloride (BPC) were grown by the slow evaporation technique. The crystal system and lattice parameters were found using single crystal X-ray diffraction. The mechanical behaviour was analysed using the Vicker’s microhardness test. The microhardness studies reveal that the hardness of the grown crystal increases with an increase in the load. The Kurtz powder test confirms that the SHG efficiency of Bisthiourea Potassium Chloride is higher than that of KDP. The dielectric studies were carried out on the grown crystals to study the dielectric behaviour. Photoconductivity measurements carried out on the grown crystal reveals the negative photoconducting nature of the crystals.