TITLE

Design of an atomic layer deposition reactor for hydrogen sulfide compatibility

AUTHOR(S)
Dasgupta, Neil P.; Mack, James F.; Langston, Michael C.; Bousetta, Al; Prinz, Fritz B.
PUB. DATE
April 2010
SOURCE
Review of Scientific Instruments;Apr2010, Vol. 81 Issue 4, p044102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A customized atomic layer deposition (ALD) reactor was designed with components compatible with hydrogen sulfide (H2S) chemistry. H2S is used as a reactant for the ALD of metal sulfides. The use of H2S in an ALD reactor requires special attention to safety issues due to its highly toxic, flammable, and corrosive nature. The reactor was designed with respect to materials compatibility of all wetted components with H2S. A customized safety interlock system was developed to shut down the system in the event of toxic gas leakage, power outage, loss of building ventilation or compressed air pressure. ALD of lead sulfide (PbS) and zinc sulfide (ZnS) were demonstrated with no chemical contamination or detectable release of H2S.
ACCESSION #
50173714

 

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