Growth of N-benzyl-2-methyl-4-nitroaniline (BNA) single crystal fibers by micro-pulling down method

Abstract

N-benzyl-2-methyl-4-nitroaniline (BNA) fiber single crystals were grown by the micro-pulling down (µ-PD) method. Crucible material and its shape were selected based on wetting of the crucible material by liquid BNA. As a result, BNA fiber single crystal with about 1-2 mm diameter was successfully grown. Powder XRD analysis and x-ray rocking curve measurements were performed. Widely-tunable THz-wave generation from 4 THz to 14 THz was demonstrated using the BNA fiber crystal grown by µ-PD method.

Synthesis and characterization of a new isoxazolone-based nonlinear optical crystal: MPMOI

“…Compared with MLS (T m = 166 °C), the MPMOI electron acceptor introduces an additional CH 3 O-group and forms more strong hydrogen bonds, resulting in a higher melting point of MPMOI. Besides, MPMOI also has a higher melting temperature than previously reported NLO crystals, such as 43 and 2-cyclooctylamino-5-nitropyridine COANP (71 °C). 44 In addition, MPMOI is insoluble in water, which is beneficial to long-term optical device operation and storage in laser technology.…”

“…Besides, MPMOI also has a higher melting temperature than previously reported NLO crystals, such as 4-(4-(methylthio)phenyl)-2,6-di(1 H -pyrazol-1-yl)pyridine UOH1 (ref. 30) (170 °C), N -(4-nitrophenyl)-( l )-prolinol NPP (116 °C), 42 N -benzyl-2-methyl-4-nitroaniline BNA (106 °C), 43 and 2-cyclooctylamino-5-nitropyridine COANP (71 °C). 44 In addition, MPMOI is insoluble in water, which is beneficial to long-term optical device operation and storage in laser technology.…”

Structural, electrical and optical studies on organic NLO single crystal of N‐benzyl‐2‐methyl‐4‐nitroaniline (BNA)

“…[12][13][14] The BNA crystals are a leading NLO material and potentially superior to currently available organic materials. [15,16] Here, BNA through slow evaporation method and investigated its functional groups, XRD, FIIR, TG/DSC, optical studies, NLO studies, and dielectric measurement of BNA crystal, and their results are discussed.…”

Single Crystal Growth of N‐Benzyl‐2‐methyl‐4‐nitroaniline by Seeded Czochralski Pulling Technique for NLO and THz Applications

“…[ 10 ] Subsequently, the BNA material was synthesized under a newer chemical environment and reported in our previous communication. [ 11 ] Though various methods of solution growth such as solvent evaporation and slow cooling methods are being adapted by many researchers to grow bulk size of BNA single crystals with good optical quality by considering its admirable properties, [ 9–15 ] yet problems such as the presence of solution inclusion, internal growth defects, and lattice mismatches within the grown crystals are inevitable and hence the single crystal growth of BNA with desired properties for the development of an effective THz wave generation is still a challenging one. [ 15 ] Hence finding out alternative methods of crystal growth is the need of the hour which will yield defect free single crystals but it depends very much on the physical and chemical properties of the material concerned.…”