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Vapour‐liquid‐solid Growth and Characterisation of N‐methylurea Crystals
Author(s) -
Zha M.,
Zanotti L.,
Zuccalli G.,
Ardoino M.,
Capelletti R.,
Paorici C.
Publication year - 1997
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170320121
Subject(s) - urea , materials science , crystal growth , crystallography , chemistry , organic chemistry
A new growth method, based on a vapour‐liquid‐solid (VLS) mechanism, is reported for preparing single crystals of N‐methylurea (NMU), a material which appears to be a good alternative to urea for non‐linear optical applications in the “near UV‐visible” region of the spectrum. Details of the growth procedure are given and it is shown that large single crystals, with volumes up to 7 ÷ 10 cm 3 , can be obtained with satisfactory reproducibility and very fast growth rate. Structural and optical characterisation, still preliminary, are reported, which evidence a crystalline quality comparable to that of urea and N‐methylurea as previously grown with other growth techniques. Cryst. Res. Technol., Vol. 32, No. 1.