Structural Modulation of Anionic Group Architectures by Cations to Optimize SHG Effects: A Facile Route to New NLO Materials in the ATCO₃F (A = K, Rb; T = Zn, Cd) Series

Abstract

Crystals of KCdCO3F (I), RbCdCO3F (II), KZnCO3F (III), and RbZnCO3F (IV) are grown under subcritical hydrothermal conditions, using e.g. a 1:6:2 molar mixture of CdCl2, KF, and K2CO3 in H2O for KCdCO3F (autoclave, 220 °C, 5 d).

A High Laser Damage Threshold and a Good Second-Harmonic Generation Response in a New Infrared NLO Material: LiSm3SiS7

“…Recently, numerous famous NLO crystals have been discovered and have effectively solved the generation of UV-visible light [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. However, for the mid-far infrared (IR) region (3-20 µm), outstanding IR NLO materials have been discovered less, and only a few (chalcopyrites AgGaS 2 , AgGaSe 2 , and ZnGeP 2 ) have been commercially applied [23][24][25].…”

KNiB4O6F3: A Layered Fluorooxoborate with Charge‐Oriented Ordering

“…Similarly, Ye et al. found that the (CO 3 ) 2− group alignment is controlled by the cations of different sizes . Chang et al.…”

“…found that the (CO 3 ) 2À group alignment is controlled by the cations of different sizes. [5] Chang et al found that the orderly alignment of the lone-pair in the (IO 3 ) À groups were more susceptible to the influence of compact octahedral coordination of LiO 6 and NaO 6 in A 2 Ti(IO 3 ) 6 (A = Li, Na). [6] Those proposals can only guarantee to order the anionic groups locally around the coordinatedc ations,w hich can achievet he maximum favourable alignment of the anionic groups into 2d imensional (2D) layers in the structure.…”

Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

“…For the last years, more intensive studies have been carried out in the search and synthesis of new carbon-containing oxide crystals, which are also of higher transparence in the UV spectral ranges [20][21][22][23][24][25][131][132][133][134][135][136][137][138][139][140][141][142][143][144][145] (carbonates [132,138,140,143,144], tartrates [133][134][135]145], formates [136], oxalates [137], acetates [109], and fluoride-carbonates [20][21][22][23][24][25]). These crystals also have their high optical damage threshold and the phase-matching angles in the UV spectral range.…”