laser direct write of silicon nanowires
laser direct write of silicon nanowires
... Laser direct write of silicon nanowires
Input
Laser
Window
SiH
4
, N
2
Gas Nozzle
Piezoelectric
XYZ stage
Zone
Plates
Substrate
CVD
Chamber
Fig. 1 Schematic diagram of the system for laser direct ... Engineering October 2011/Vol. 50(10)104301-2
Mitchell et al.: Laser direct write of silicon nanowires
Fig. 3 SEM image of femtosecond laser deposited silicon...
laser direct writing of silicon field effect transistor sensors
... (V
D
)
of 100 mV in solutions with pH values varying from 3 to
10. Consistent with p-type accumulation behavior, the
FIG. 1. (a) Schematic diagram of laser direct writing of
silicon wires. A laser ... deposition of an AZ1518 photoresist layer. Figure 2(a)
shows an optical image of a typical device with four Si wires
aligned horizontally, illustrating that our laser direct...
Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation
... oxide
exceeded the growth rate of crystal silicon, outer
layer of silicon oxide will surround the crystal sil-
icon. As a result, the growth of crystal silicon
ceased and silicon oxide of outer layer coalesced
together ... The
peculiar feature of the branch suggests that there
may exist a competitive growth between crystal
silicon core and outer layer of silicon oxide....
sub diffraction laser synthesis of silicon nanowires
... synthesis of silicon nanowires of tens of nanometers via laser induced chemical vapor
deposition. These nanowires with diameters as small as 60 nm are produced by the interference between
incident laser ... fine features of sub
diffraction limit laser growth with direct material synthesis. Here we describe a laser- based method to produce
silicon nanowires with widt...
sub diffraction laser synthesis of silicon nanowires
... synthesis of silicon nanowires of tens of nanometers via laser induced chemical vapor
deposition. These nanowires with diameters as small as 60 nm are produced by the interference between
incident laser ... fine features of sub
diffraction limit laser growth with direct material synthesis. Here we describe a laser- based method to produce
silicon nanowires with widt...
Carbon assisted synthesis of silicon nanowires
... char-
acteristic of cubic silicon with a small impurity of
silica.
Reaction of silicon powder with activated car-
bon in the absence of H
2
, by procedure (ii), yielded
abundant quantities of SiNWs. ... to the (1 1 1) planes of
silicon. The crystallinity of the nanowires is con-
siderably higher when only argon was used instead
of a mixture of argon and hydrogen. The...
Growth kinetics of silicon nanowires by platinum assisted vapour–liquid–solid mechanism
... HRTEM image of Si nanowire using Au. (d) HRTEM image of Si nanowire using Pt. Both were single crystal. (e) EDS line mapping of Si
nanowires using Au catalyst. (f) EDS line mapping of Si nanowires ... degrade the performance of Si
nanowire devices even if it diffuses into the nanowires. Some
studies have reported on the growth of Si nanowires using Pt
with a precursor of...
Optical spectroscopy of silicon nanowires
... Optical spectroscopy of silicon nanowires
Jifa Qi
a,
*
, John M. White
a
, Angela M. Belcher
a
, Yasuaki Masumoto
b
a
Department of Chemistry and Biochemistry, University of Texas, Welch 4.212, ... USA
b
Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Received 16 December 2002; in final form 13 March 2003
Abstract
Silicon nanowires (SiNWs) were prepar...
Temperature dependence of the quality of silicon nanowires produced over a titania supported gold catalyt
... °C. Silicon nanowires
produced at this temperature have a well-crystal-
lized silicon core with a very thin amorphous sili-
con dioxide outer layer. The length of the
nanowires is in the range of ... and
quality of the products obtained as a function of temperature.
Ó 2003 Elsevier B.V. All rights reserved.
1. Introduction
Silicon nanowires (SiNWs) have been widely
studied...
A study in the growth mechanism of silicon nanowires with or without metal catalyst
... the
catalytic growth. However, the growth of silicon nanowires with sulfide is chiefly affected by the compound decomposition, gas stream, and
temperature difference. Silicon nanowires fabricated with metal ... typical sample of
synthesis of SiNWs without a metal catalyst [17]. In this case,
the SiO
x
vapor decomposes into Si atoms, which act as the
nuclear of SiNWs covered by...