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Nanotruss Projects
Lauren Montemayor, Lucas Meza, Victoria Chernow, Wendy Gu
Design and fabrication of nanoscale truss structures for advanced energy applications
Fracture/CompositesPolymer
Metal
Composites:1) Strength of Polymer/Metal
Bond2) Fracture Toughness3) Dynamic Properties
• Damping Effects• Wave Propagation
Fracture Toughness:1) Lattice Structure
(Stretching vs. Bending)
2) Unit Cell Dimensions3) Metal microstructure
Lauren - [email protected]
Heat Transfer/Thermoelectrics
• SURF Tasks:– Fabrication of nanotruss structures using DLW TPL–Measurement of thermal properties of structures– Investigation into potential thermoelectric materials
3D Kagome Lattice Multilayered Truss Unit Cell
Lucas - [email protected]
Solar Cells
Silver Thin Film Deposition
Electroless plating or ALD
Nanotruss Fabrication
Malureanu, R. et al. J. Electrochem. Soc. 157, 12 (2010)
Electrodynamic calculations
Incorporation into PV device
Geometry optimization
Nanotruss Antireflective Coating
N-type Semiconductor
P-N Junction
P-type Semiconductor
Victoria - [email protected]
Si Truss Electrode for Li+ Batteries
Lithiation of Si 400% volume change mechanical stress
Goal: create a zero net volume expansion electrode based on truss geometry
Lithiation
Li+ battery
Si
Li+
Li+
Li+
Li+
Kasavajjula et al. (2007)
Wendy - [email protected]