标题: | Single femtosecond laser pulse-single crystal formation of glycine at the solution surface |
作者: | Liu, Tsung-Han Uwada, Takayuki Sugiyama, Teruki Usman, Anwar Hosokawa, Yoichiroh Masuhara, Hiroshi Chiang, Ting-Wei Chen, Chun-Jung 應用化學系 應用化學系分子科學碩博班 Department of Applied Chemistry Institute of Molecular science |
关键字: | Crystal morphology;Interfaces;Single crystal;Femtosecond laser;Glycine |
公开日期: | 1-三月-2013 |
摘要: | We demonstrate femtosecond laser-induced crystallization of glycine from its supersaturated solution depending on laser tunable parameters (pulse energy and repetition rate) and focal position, and examine the crystallization probability, crystal morphology, and crystal polymorph. The generation of cavitation bubble through multiphoton absorption of water depends on input laser pulse energy and repetition rate, which strongly determine morphology and number of the obtained crystals. Significant increase in the crystallization probability is observed by irradiating the femtosecond laser pulses to the air/solution interface, and single pulse-induced single crystal formation is successfully achieved. The crystallization mechanism is discussed in view of inhomogeneous mechanical stress induced by cavitation bubble generation and molecular assembly characteristics of the surface. (C) 2012 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.jcrysgro.2012.11.018 http://hdl.handle.net/11536/21196 |
ISSN: | 0022-0248 |
DOI: | 10.1016/j.jcrysgro.2012.11.018 |
期刊: | JOURNAL OF CRYSTAL GROWTH |
Volume: | 366 |
Issue: | |
起始页: | 101 |
结束页: | 106 |
显示于类别: | Articles |
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