title: Influences of surface capping with electrostatically self-assembled PEI on the photoresponse of a TiO2 thin film.
abstract: The photoresponse of a TiO2 thin film was significantly improved due to the decrease in the Schottky barrier height between Au and TiO2 via the formation of interface dipoles, which was caused by electrostatically self-assembled PEI on the surface of the TiO2 film.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
authors.forename: Xuehui
authors.initials: X
authors.lastname: Gu
authors.forename: Fanxu
authors.initials: F
authors.lastname: Meng
authors.forename: Guohua
authors.initials: G
authors.lastname: Liu
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhang
authors.forename: Jingran
authors.initials: J
authors.lastname: Zhou
authors.forename: Shengping
authors.initials: S
authors.lastname: Ruan
mesh_terms: D007097:Imines / Q000138:chemical synthesis* / Q000737:chemistry; D055668:Photochemical Processes; D011095:Polyethylenes / Q000138:chemical synthesis* / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D007097:Imines; D011095:Polyethylenes; C505405:poly(ethylene imine); C009495:titanium dioxide; D014025:Titanium