Fundamentals of Laser Direct Write Deposition for Electrochemically Active Materials

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Fundamentals of Laser Direct Write Deposition for
Electrochemically Active Materials
Craig B. Arnold, Mechanical and Aerospace
Engineering, Princeton Institute of Science and
Technology of Materials, Princeton University,
Princeton, NJ 08544
LDW is an important way to create patterns of
active material for small scale energy storage
systems
We demonstrate that not only can this technique
fabricate devices, but it can be used to optimize
material properties during printing
In contrast to traditional oven annealing laser
processing allows independent decrease in
electron resistivity without affecting the proton
transport
Hydrous ruthenium oxide
Decrease is due to local sintering during transfer
Higher laser energies lead to more explosive
transfer and correspondingly higher cooling rate
? Less sintering and increase in resistivity