Enhancement of second harmonic generation, optical and dielectric properties in L-asparagine monohydrate single crystals due to an improvement in crystalline perfection by annealing

被引：71

作者：

Shakir, Mohd. ^{[1
,2
]}

Kushawaha, S. K. ^{[1
]}

Maurya, K. K. ^{[1
]}

Kumar, Sumeet ^{[1
]}

Wahab, M. A. ^{[2
]}

Bhagavannarayana, G. ^{[1
]}

机构：

[1] CSIR, Natl Phys Lab, Mat Characterizat Div, New Delhi 110012, India

[2] Jamia Millia Islamia, Dept Phys, Crystal Growth Lab, New Delhi 110025, India

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2010年 / 43卷

关键词：

GROWTH; DIFFRACTION; SCATTERING; LINBO3; EPR;

D O I：

10.1107/S0021889810008745

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single crystals of the relatively new nonlinear optical material L-asparagine monohydrate have been successfully grown by the slow evaporation solution growth technique at room temperature in aqueous solution. The crystal system of the title material has been confirmed by powder X-ray diffraction. The crystalline perfection of the as-grown and annealed crystals has been evaluated by high-resolution X-ray diffraction. The as-grown single crystals (particularly when their size is large) were found to contain internal structural grain boundaries, and the crystalline perfection of these crystals was found to be improved substantially by annealing at low temperatures. The crystalline perfection and the measured physical properties were found to be correlated such that the second harmonic generation efficiency, optical transparency, fluorescence and dielectric properties are enhanced as the crystal quality improves. (C) 2010 International Union of Crystallography Printed in Singapore - all rights reserved

引用

页码：491 / 497

页数：7

共 26 条

[1] AC conductivity and dielectric behavior of [Cd(phen)2(SCN)2] [J].

Akgul, Unal ;

Ergin, Zuhal ;

Sekerci, Memet ;

Atici, Yusuf .

VACUUM, 2007, 82 (03) :340-345

[2]

[Anonymous], 1993, American chemical symposium series

[3]

BALAREW C, 1984, J SOLID STATE CHEM, V55, P1, DOI 10.1016/0022-4596(84)90240-8

[4] DYNAMICAL DIFFRACTION OF X RAYS BY PERFECT CRYSTALS [J].

BATTERMAN, BW ;

COLE, H .

REVIEWS OF MODERN PHYSICS, 1964, 36 (03) :681-&

[5] A study of the effect of annealing on Fe-doped LiNbO3 by HRXRD, XRT and FT-IR [J].

Bhagavannarayana, G ;

Ananthamurthy, RV ;

Budakoti, GC ;

Kumar, B ;

Bartwal, KS .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2005, 38 :768-771

[6] Enhancement of crystalline, piezoelectric and optical quality of LiNbO3 single crystals by post-growth annealing and poling [J].

Bhagavannarayana, G ;

Budakoti, GC ;

Maurya, KK ;

Kumar, B .

JOURNAL OF CRYSTAL GROWTH, 2005, 282 (3-4) :394-401

[7] Synthesis, crystal growth and characterization of L-pyrrolidone-2-carboxylic acid (L-PCA) crystals [J].

Boomadevi, S ;

Dhanasekaran, R .

JOURNAL OF CRYSTAL GROWTH, 2004, 261 (01) :70-76

[8] Correction of zero shift in powder diffraction patterns using the reflection-pair method [J].

Dong, C ;

Wu, F ;

Chen, H .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1999, 32 :850-853

[9] Two different incorporation sites of manganese in single-crystalline monohydrated L-asparagine studied by electron paramagnetic resonance [J].

Krambrock, K. ;

Guedes, K. J. ;

Ladeira, L. O. ;

Bezerra, M. J. B. ;

Oliveira, T. M. ;

Bezerra, G. A. ;

Cavada, B. S. ;

de Oliveira, M. C. F. ;

Flores, M. Z. S. ;

Farias, G. A. ;

Freire, V. N. .

PHYSICAL REVIEW B, 2007, 75 (10)

[10] EPR and optical absorption studies of VO2+ ions in L-asparagine monohydrate [J].

Kripal, Ram ;

Singh, Pragya .

SOLID STATE COMMUNICATIONS, 2007, 142 (07) :412-416

← 1 2 3 →