Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/58277| Type: | Artigo de Periódico |
| Title: | Electronic properties of ultrathin O-terminated ZnO (0001¯) on Au (111) |
| Authors: | Israel Fidelis de Lima Christian Stiehler Sílvio Manuel Duarte Queirós Carsten Enderlein Wendell Simões e Silva Edmar Avellar Soares Shamil K. Shaikhutdinov Hans-Joachim Freund Fernando Loureiro Stavale Junior |
| Abstract: | The electronic structure of ultrathin ZnO films grown on Au (111) was investigated by scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and X-ray and ultraviolet photoemission spectroscopy (XPS and UPS). Our results show evidence of O-terminated films and formation of bulk-like ZnO (2 × 2) surface reconstruction for films with > 4 monolayers. The measurements indicate that the metal substrate plays a decisive role in the electronic structure of films since p-type doping is obtained as observed from the valence band energy shifts. Moreover, finite-size effects appear to significantly modify the Zn and O core-level energy positions. These electronic effects may account for the role of ZnO catalytic performance in ZnO/metal systems, as well as for their nanostructure optoelectronic properties. |
| Subject: | Catalizadores Filmes finos Propriedades eletrônicas Zinco |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | https://doi.org/10.1016/j.susc.2018.10.007 |
| URI: | http://hdl.handle.net/1843/58277 |
| Issue Date: | 2019 |
| metadata.dc.url.externa: | https://www.sciencedirect.com/science/article/pii/S0039602818307088 |
| metadata.dc.relation.ispartof: | Surface Science |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.