abstract
Sulfamic acid is a potential material that exhibits excellent optical properties. A good quality, pure and dysprosium (Dy3+) doped (2.5 and 5 mol %) Sulfamic acid (SA) single crystals were grown successfully by slow cooling method. Structural study revealed a slight change in its lattice parameters and volume, suggesting the successful incorporation of Dy3+ in crystal system. The existence of dysprosium in the system was also confirmed. Presence of various vibrational modes was confirmed. Optical transparency was found to have a significant effect with variation in the doping concentration. Furthermore, a marked enhancement in its mechanical parameters with doping was also identified by nanoindentation technique. Etching study was also performed on the grown crystals to study the etch-pit formation and growth mechanism. Effect of doping on the thermal stability was analysed. All the results were compared and discussed in detail to get insight of the effect of doping concentration on Sulfamic acid crystal. (C) 2016 Elsevier B.V. All rights reserved.
keywords
2ND-HARMONIC GENERATION SHG; UNIDIRECTIONAL GROWTH; NUCLEATION KINETICS; L-ALANINE; L-PROLINE; PERFECTION; EFFICIENCY; BEHAVIOR; ENHANCEMENT; ZWITTERION
subject category
Chemistry
authors
Singh, B; Shkir, M; AlFaify, S; Kaushal, A; Nasani, N; Bdikin, I; Shoukry, H; Yahia, IS; Algarni, H
our authors
Ajay Kaushal
Post-Doc FellowshipGroups
acknowledgements
The authors are highly thankful to King Khalid University for providing the necessary facility for the current work. Also the authors, Budhendra Singh and Ajay Kaushal would like to thank Fundacaopara a Ciencia e a Tecnologia for the financial support (Funded by NSRF-POPH) under the grant SFRH/BPD/76184/2011 and SFRH/BPD/77598/2011, respectively.