Anticorrelation between Surface and Subsurface Point Defects and the Impact on the Redox Chemistry of TiO2(110)
Dr. Yeohoon Yoon, Dr. Yingge Du, Dr. Juan C. Garcia, Dr. Zihua Zhu, Dr. Zhi-Tao Wang, Dr. Nikolay G. Petrik, Dr. Gregory A. Kimmel, Dr. Zdenek Dohnalek, Dr. Michael A. Henderson, Dr. Roger Rousseau, Prof. N. Aaron Deskins and Dr. Igor Lyubinetsky
Article first published online: 30 OCT 2014 | DOI: 10.1002/cphc.201402599
Spatial correlation of defects: Oxygen vacancies (VO), the dominant surface defects at TiO2(110), are absent in the vicinity of positively charged subsurface point defects. These point defects, in turn, are located only beyond the nearest subsurface region, which is thus void of any charged defects (see figure).