Numéro
J. Phys. I France
Volume 6, Numéro 12, December 1996
Page(s) 1575 - 1580
DOI https://doi.org/10.1051/jp1:1996175
DOI: 10.1051/jp1:1996175
J. Phys. I France 6 (1996) 1575-1580

Twist Morphology of Organic Crystal (BPE-DMB)IBr $\mathsf{_2}$

Kazushige Kawabata1, Tomonori Kumagai1, Makoto Mizutani2 and Takashi Sambongi1

1  Department of Physics, Graduate School of Science, Hokkaido University, Sapporo 060, Japan
2  PRESTO, JRDC (Idemitsu Kosan Co. LTD), Sodegaura Chiba 299-02, Japan



(Received 26 April 1996, accepted 1 July 1996)

Abstract
Crystals of (BPE-DMB)IBr 2, where BPE-DMB denotes 1,4-bis[2-(pyrene-1-yl) vinyl]-2,5-dimethylbenzene, are found to be twisted along the growing axis. Their morphology was examined in detail by X-ray examination, scanning electron and optical microscopic observations. It was found that the twisted crystals are quasi-stable and that the twisting is not discrete but rather continuous in sub-micron scale. The relation between a twist pitch and the cross-section area was obtained and compared with the dislocation model proposed by Eshelby.



© Les Editions de Physique 1996

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.