A study on optical, thermal, mechanical, dielectric, piezoelectric and NLO properties of unidirectional ammonium chloride added ammonium dihydrogen phosphate crystal

作者：Rajesh R; Ramasamy P^*

来源：Materials Letters, 2009, 63(26): 2260-2262.

DOI：10.1016/j.matlet.2009.07.018

• Crystal growth
• Optical materials and properties
• Dielectrics
• Hardness

<0 0 1> directed ammonium dihydrogen phosphate single crystal with the addition of 1 mol% of ammonium chloride in the mother solution has been grown by Sankaranarayanan-Ramasamy method. The grown crystal has cylindrical morphology with good optical quality. It has good thermal stability up to 200 degrees C. Higher mechanical stability was observed in ammonium chloride added crystal compared to pure crystal. Moreover, the addition of ammonium chloride improves the quality and yields highly transparent crystal in minimum duration of growth. Good piezoelectric behaviour was observed for the grown crystal. Low dielectric loss shows that the grown crystal contains minimum defects. The optical transmission study and the powder SHG measurement show the suitability of the ingot for nonlinear optical applications.

• 出版日期2009-10-31