K3B6O10Cl: A New Structure Analogous to Perovskite with a Large Second Harmonic Generation Response and Deep UV Absorption Edge

Wu, Hongping; Pan, Shilie; Poeppelmeier, Kenneth R.; Li, Hongyi; Jia, Dianzeng; Chen, Zhaohui; Fan, Xiaoyun; Yang, Yun; Rondinelli, James M.; Luo, Haosu

doi:10.1021/ja111083x

Cited by 643 publications

(330 citation statements)

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“…Thus, finding the optimal composition that is facile to synthesize, yields large single crystals, and simultaneously satisfies the NLO requirements has attracted considerable attention. [10,11] The presence of large NLO coefficients in a structure is usually in contradiction with wide band gaps in one compound. For instance, the structural units in the known compounds are second-order Jahn-Teller (SOJT) polar dis- [17] which combine with diverse other functional building units to produce materials with large NLO coefficients, for example, Cd 4 BiO-(BO 3 ) 3 (6 KDP), [18] Pb 2 B 5 O 9 I (13.5 KDP), [19] and Ba 23 Ga 8 Sb 2 S 38 (22 AgGaS 2 ).…”

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confidence: 99%

Cs₂B₄SiO₉: A Deep‐Ultraviolet Nonlinear Optical Crystal

et al. 2013

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The generation of deep-ultraviolet (UV) coherent light from nonlinear optical (NLO) materials [1][2][3][4] as one of the most promising resource, has become a topic of intensive study because of its important applications in a broad range of fields, such as semiconductor photolithography, laser micromachining, photochemical synthesis, and material processing. They are able to shorten the wavelength of light by a factor of two (or doubling the frequency), based on the process of second-harmonic generation (SHG), which occurs only when a centrosymmetric symmetry operation is absent in a crystal. However, for a noncentrosymmetric (NCS) crystal to be used as a nonlinear optical material the essential crystal property requirements are that the crystals possess a large NLO response, wide transparent window, suitable birefringence for phase-matching, good mechanical strength, and chemical stability. [4,5] After continuous efforts over several decades, many NCS compounds were obtained by incorporating functional borate structure units, such as B 3 O 6 and B 3 O 7 . b-BaB 2 O 4 (BBO) [6] and LiB 3 O 5 (LBO) [7] are the most advanced NLO materials, which have widely been used as optoelectronic devices. However, to date, KBe 2 BO 3 F 2 (KBBF) [8,9] is the only material that can generate coherent light wavelengths below 200 nm by direct SHG, which makes KBBF a research hotspot. Unfortunately, the KBBF crystal is very difficult to grow in thickness owing to the growth habit of the layer, which severely limits the coherent light output power. Thus, finding the optimal composition that is facile to synthesize, yields large single crystals, and simultaneously satisfies the NLO requirements has attracted considerable attention. [10,11] The presence of large NLO coefficients in a structure is usually in contradiction with wide band gaps in one compound. For instance, the structural units in the known compounds are second-order Jahn-Teller (SOJT) polar dis- [17] which combine with diverse other functional building units to produce materials with large NLO coefficients, for example, Cd 4 BiO-(BO 3 ) 3 (6 KDP), [18] Pb 2 B 5 O 9 I (13.5 KDP), [19] and Ba 23 Ga 8 Sb 2 S 38 (22 AgGaS 2 ).[20] However, the structural units produce an unwanted effect-the UV absorption edge shifts toward the red region, making them less suitable for the deep-UV applications. It is necessary to create the subtle balance of above-mentioned conflicting factors so as to search for the new deep-UV NLO crystals with excellent comprehensive performances.To circumvent the wide absorption window requirement, basic structural units having excitation energies near the UV region are necessary. Such units are BO 3 , BO 4 , SiO 4 , and PO 4 . [6,7,21] A compound Rb 2 Be 2 Si 2 O 7 [22] was ever expected to be a substitution for KBBF owing to its similar structure characteristics with KBBF and without the layer habit. But, the weak SHG response of Rb 2 Be 2 Si 2 O 7 makes the substitution end in naught. However, the borosilicate may be a potential candidate for a deep-...

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Cs₂B₄SiO₉: A Deep‐Ultraviolet Nonlinear Optical Crystal

et al. 2013

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“…Many borate halides have been reported in our and other groups [24][25][26]. For example, the borate halides K 3 B 6 O 10 Cl (KBOC) [27][28][29][30][31][32], Ba 4 B 11 O 20 F [33], M 3 B 6 O 11 F 2 (M=Ba, Sr, Pb) [34][35][36], Li 3 Ca 9 (BO 3 ) 7 · 2[LiF] [37], etc.…”

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confidence: 99%

Linear optical and thermo-physical properties of polar K3B6O10Cl crystal

Yang

et al. 2015

Journal of Materiomics

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The crystal of K 3 B 6 O 10 Cl with sizes up to 35 mm × 35 mm × 11 mm was successfully grown by TSSG method. The preliminary measurements for linear, NLO optical and other functional properties have also been studied on the grown crystals. K 3 B 6 O 10 Cl is a potential UV NLO material for direct FHG of the 1112 nm laser.Abstract: Single crystal of K 3 B 6 O 10 Cl with size of 35 mm × 35 mm × 11 mm was grown by the TSSG method for the first time. In the crystal growth process, the cooling rate, the rotating speed and seed direction have been investigated. Based on the measurement of refractive-index from UV to NIR region, the limit of type-I phase matching second harmonic generation wavelength was calculated to be 272 nm, which is a little shorter than that of LiB 3 O 5 (277 nm). Thermal properties including specific heat, thermal diffusion and thermal conductivity were performed on the crystal. In addition, polarization measurements demonstrate that although K 3 B 6 O 10 Cl is polar, the material is not ferroelectric.

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“…Materials processing commercial application for the generation of coherent light in ultraviolet region have been found in b-BaB 2 O 4 (BBO) [4], LiB 3 O 5 (LBO) [5], and also some potential candidates such as KBe 2 BO 3 F 2 (KBBF) [6], K 3 B 6 O 10 Cl [7], Ba 4 B 11 O 20 F [8], Li 4 Sr(BO 3 ) 2 [9]. Recently, some copper or gallium borates also attract considerable interest owing to their ability to catalyze water splitting under visible-light excitation [10].…”

Section: Introductionmentioning

confidence: 99%