Journal of Electron Microscopy Advance Access published online on April 8, 2009
Journal of Electron Microscopy, doi:10.1093/jmicro/dfp018
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Development of a multifunctional TEM specimen holder equipped with a piezodriving probe and a laser irradiation port
1 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577
2 JEOL Co., Ltd, Akishima 196-8558, Japan
* To whom correspondence should be addressed. E-mail: shindo{at}tagen.tohoku.ac.jp
The double-probe piezodriving specimen holder that was recently developed by some of the present authors is modified to introduce a laser irradiation port in one of its two arms. As a result, the new specimen holder consists of a piezodriving probe and a laser irradiation port, both of which can be three-dimensionally controlled by using piezoelectric elements and micrometers. While the piezodriving probe interacts with the specimen set in the holder in several ways, the laser beam causes photo-induced phenomena to occur. By performing electron holography using the new specimen holder, we demonstrate that it is possible to evaluate the change in the electric field resulting from the discharging effect of laser irradiation on organic photoconductors.
Keywords electron holography, electric field, electric potential, photoconductor, photo-induced phenomenon, charging
Received 22 December 2008, accepted 19 March 2009