What is it about?
Area-selective growth via chemical vapor deposition allows us to pattern the IrO2 nanorods array. You may achieve growth and patterning the IrO2 nanocrystals in one step. The trick can be done by defining a slippery glass pattern on top of the sapphire substrate, such that nucleation barrier on the glass surface prohibits IrO2 crystal growth, meanwhile IrO2 grows on sapphire surface since no nucleation barrier exists.
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Why is it important?
Conventional patterning processing is tedious, area-selective growth is simpler.
Perspectives
IrO2 and RuO2 are important electrocatalysts for water splitting and other electrochemical reactions. The area-selective growth can assist in patterning these catalysts.
Dah-Shyang Tsai
National Taiwan University of Science and Technology
Read the Original
This page is a summary of: Selective growth of IrO2nanorods using metalorganic chemical vapor deposition, Journal of Materials Chemistry, January 2006, Royal Society of Chemistry,
DOI: 10.1039/b514499j.
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