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When light hits oxygen adatoms (red) on the surface of a titanium dioxide catalyst, the adatoms are excited by reactions with electrons and/or holes created in the catalyst. The adatoms change their charge state and transfer energy to nearby krypton atoms (green), causing the reporter atoms to depart. This research was conducted at Pacific Northwest National Laboratory.

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Document Title: Photoactive Oxygen Adatoms
Category: Chemistry
Media Type: Photos
Date of Image/Photo: March 4, 2014
Background: http://www.pnl.gov/science/highlights/highlight.asp?id=1596
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/DRAE-9GWRQT

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