Embedded binary eutectic alloy nanostructures: a new class of phase change materials.
Phase change materials are essential to a number of technologies ranging from optical data storage to energy storage and transport applications. This widespread interest has given rise to a substantial effort to develop bulk phase change materials well suited for desired applications. Here, we suggest a novel and complementary approach, the use of binary eutectic alloy nanoparticles embedded within a matrix. Using GeSn nanoparticles embedded in silica as an example, we establish that the presence of a nanoparticle/matrix interface enables one to stabilize both nanobicrystal and homogeneous alloy morphologies. Further, the kinetics of switching between the two morphologies can be tuned simply by altering the composition.
Shin
S J
SJ
Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA.
Guzman
J
J
Yuan
C-W
CW
Liao
Christopher Y
CY
Boswell-Koller
Cosima N
CN
Stone
P R
PR
Dubon
O D
OD
Minor
A M
AM
Watanabe
Masashi
M
Beeman
Jeffrey W
JW
Yu
K M
KM
Ager
J W
JW
Chrzan
D C
DC
Haller
E E
EE