####################################################
# John Budai <budaijd@ornl.gov>
# requesting 6 days, at minimum=5 days
# beamline 34ID-E, Growth and microstructure of ZnO nanorods
# instrument 34ID-E microbeam
####################################################
# top:/home/www/beamtime-requests/req00660.txt
# UNICAT Member Beam Time Request  #660
# created Fri Aug 20 13:40:33 CDT 2004
####################################################

beamline:
	34ID-E

collaboration:
	No

collaborator_Wenjun:
	ON

contact:
	budaijd@ornl.gov

days:
	6

description:
	We will use white-beam Laue microdiffraction to study the growth mechanisms and microstructure of individual ZnO nanorods (~50 – 500 nm diameter) grown by catalyst-assisted molecular-beam epitaxy (MBE).   ZnO nanorods are direct, wide-bandgap semiconductors of interest in a range of nanostructured devices.  We will measure the crystal structure, the perfection (mosaic spread), and the lattice orientation along individual ZnO and (Zn,Mg)O nanorods deposited on Si wafers and glass slides.  Measurements of the region near the Au or Ag catalyst will be examined in order to understand orientation and alloying effects associated with MBE growth.  Results will be correlated with electrical transport measurements.

equipment_required:
	

experiment:
	Growth and microstructure of ZnO nanorods

foreign_nationals:
	

hazards:
	none

instrument:
	34ID-E microbeam

instrument_other:
	

minimumdays:
	5

name:
	John Budai

new_request:
	ON

nonmembers:
	

unacceptable_dates:
	Oct 5 - 11;  Oct 27 – 31;  Nov 6;  Nov 24 - Dec 4

z34ID_change_undulator:
	yes

z34ID_details:
	Large taper may make beam unsuitable for some parasitic experiments.

z34ID_on_axis:
	no

z34ID_parasitic:
	no

z34ID_taper:
	yes


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