Materials & Chemicals
SUBSTANTIAL LIFETIME ENHANCEMENT OF SI-BASED PHOTOANODES ENABLED BY AMORPHOUS TIO2 COATING WITH IMPROVED STOICHIOMETRY
WARF: P230258US02
Inventors: Xudong Wang, Yutao Dong, Dane Morgan, Jun Meng, Jinwoo Hwang, Mehrdad Abbasi Gharacheh
The Invention
UW-Madison researchers have developed a post-ALD in-situ water treatment procedure that removes residual Cl ligands from amorphous TiO2 films and thereby extends the photoelectrochemical cell’s protection lifetime. This method partially removed the Cl residues and improved the film stoichiometry without introducing any additional crystallization. The processed amorphous TiO2 film showed drastically improved chemical stability, and substantially elongated the lifetime of Si photoanodes to ~600 hours in an alkaline electrolyte.
Additional Information
For More Information About the Inventors
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