Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime
We perform high-resolution photoelectron spectroscopy on in situ cleaved topological insulator Bi2Se3 single crystals and in situ transport measurements on Bi2Se3 films grown by molecular beam epitaxy. We demonstrate efficient electron depletion of Bi2Se3 via vacuum deposition of molecular MoO3, low...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Chemical Society
2014
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/4851 |
| _version_ | 1848744632346738688 |
|---|---|
| author | Edmonds, M. Hellerstedt, J. Tadich, A. Schenk, A. O'Donnell, Kane Tosado, J. Butch, N. Syers, P. Paglione, J. Fuhrer, M. |
| author_facet | Edmonds, M. Hellerstedt, J. Tadich, A. Schenk, A. O'Donnell, Kane Tosado, J. Butch, N. Syers, P. Paglione, J. Fuhrer, M. |
| author_sort | Edmonds, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We perform high-resolution photoelectron spectroscopy on in situ cleaved topological insulator Bi2Se3 single crystals and in situ transport measurements on Bi2Se3 films grown by molecular beam epitaxy. We demonstrate efficient electron depletion of Bi2Se3 via vacuum deposition of molecular MoO3, lowering the surface Fermi energy to within ~100 meV of the Dirac point, well into the topological regime. A 100 nm MoO3 film provides an air-stable doping and passivation layer. |
| first_indexed | 2025-11-14T06:04:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-4851 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:04:33Z |
| publishDate | 2014 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-48512017-09-13T14:44:02Z Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime Edmonds, M. Hellerstedt, J. Tadich, A. Schenk, A. O'Donnell, Kane Tosado, J. Butch, N. Syers, P. Paglione, J. Fuhrer, M. air-stable capping layer topological insulator molecular doping Bi2Se3 We perform high-resolution photoelectron spectroscopy on in situ cleaved topological insulator Bi2Se3 single crystals and in situ transport measurements on Bi2Se3 films grown by molecular beam epitaxy. We demonstrate efficient electron depletion of Bi2Se3 via vacuum deposition of molecular MoO3, lowering the surface Fermi energy to within ~100 meV of the Dirac point, well into the topological regime. A 100 nm MoO3 film provides an air-stable doping and passivation layer. 2014 Journal Article http://hdl.handle.net/20.500.11937/4851 10.1021/nn502031k American Chemical Society restricted |
| spellingShingle | air-stable capping layer topological insulator molecular doping Bi2Se3 Edmonds, M. Hellerstedt, J. Tadich, A. Schenk, A. O'Donnell, Kane Tosado, J. Butch, N. Syers, P. Paglione, J. Fuhrer, M. Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title | Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title_full | Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title_fullStr | Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title_full_unstemmed | Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title_short | Air-Stable Electron Depletion of Bi2Se3 Using Molybdenum Trioxide into the Topological Regime |
| title_sort | air-stable electron depletion of bi2se3 using molybdenum trioxide into the topological regime |
| topic | air-stable capping layer topological insulator molecular doping Bi2Se3 |
| url | http://hdl.handle.net/20.500.11937/4851 |