Twin-free and high-quality DAST crystals : Effected through solutions of lower supersaturation coupled with isothermal solvent evaporation
Twin-free and high-quality DAST crystals : Effected through solutions of lower supersaturation coupled with isothermal solvent evaporation
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无孪晶和高质量 DAST 晶体：通过较低过饱和度溶液与等温溶剂蒸发相结合来实现
DOI：
10.1021/cg0505721
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发表时间：
2006
影响因子：
3.8
通讯作者：
T. Sasaki
中科院分区：
文献类型：
--
作者：
S. Brahadeeswaran;S. Onduka;M. Takagi;Yoshinori Takahashi;H. Adachi;T. Kamimura;M. Yoshimura;Y. Mori;K. Yoshida;T. Sasaki
采用低过饱和度溶液和恒温溶剂挥发相结合的方法，生长出表面粗糙度为1.7lt；3.8 nm(−；4 nm)、无孪晶的4-N-二甲氨基-4‘-N’-甲基二苯基苯磺酸盐(DAST)晶体。此外，这些高效的有机−离子非线性光学(NLO)晶体具有发达的001面和001面，便于这些晶体直接用于电光(EO)和太赫兹(THZ)应用。由于与常规方法相比，这种改进的生长方法所需的昂贵原料的量相对较少(约46%)，因此它也被证明是具有成本效益的。
Growth of twin-free and high-quality 4-N,N-dimethylamino-4‘-N‘-methyl stilbazolium tosylate (DAST) crystals, with a surface roughness in the range of 1.7−3.8 nm (<4 nm) for as-grown crystals, has been achieved using solutions of lower supersaturation coupled with isothermal solvent evaporation. In addition, these efficient organic−ionic nonlinear optical (NLO) crystals possessed well-developed 001 and 001 faces that facilitate direct utilization of these crystals for electrooptic (EO) and terahertz (THz) applications. Since this modified growth method necessitates a relatively lower amount (about 46%) of the expensive starting material as compared to that required for routine methods, it is also proven to be cost-effective.