The origin of visible light absorption in chalcogen element (S, Se, and Te)-doped anatase TiO2 photocatalysts

• Main Authors: Dong, Zhili, Xu, Rong, Zheng, Jianwei, Bhattcahrayya, Atreyee, Wu, Ping, Chen, Zhong, Highfield, James
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Materials::Ecomaterials
• Online Access: https://hdl.handle.net/10356/94391; http://hdl.handle.net/10220/7397
• Institution: Nanyang Technological University

We use first-principles calculations to clarify the origin of the visible light absorption in chalcogen element-doped TiO2. Our results show that interstitial doping is not the origin of visible light absorption under any equilibrium growth conditions, but rather, sensitization is achievable via sub...