Work function and electron affinity of the fluorine-terminated (100) diamond surface
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- K. J. Rietwyk
- Department of Physics, La Trobe University 1 , Victoria 3086, Australia
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- S. L. Wong
- NUS Graduate School of Integrative Sciences and Engineering, National University of Singapore 2 , 28Medical Drive S117456, Singapore
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- L. Cao
- Department of Chemistry, National University of Singapore 4 , 3 Science Drive, Singapore 117543, Singapore
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- K. M. O'Donnell
- Australian Synchrotron 5 , 800 Blackburn Road, Clayton, Victoria 3168, Australia
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- L. Ley
- Department of Physics, La Trobe University 1 , Victoria 3086, Australia
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- A. T. S. Wee
- Department of Physics, National University of Singapore 3 , Singapore 117542, Singapore
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- C. I. Pakes
- Department of Physics, La Trobe University 1 , Victoria 3086, Australia
書誌事項
- 公開日
- 2013-03-04
- DOI
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- 10.1063/1.4793999
- 公開者
- AIP Publishing
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説明
<jats:p>The work function and electron affinity of fluorine-terminated (100) diamond surfaces prepared by exposure to dissociated XeF2 have been determined using synchrotron-based photoemission. After vacuum annealing to 350 °C a clean, monofluoride terminated C(100):F surface was obtained for which an electron affinity of 2.56 eV was measured. This is the highest electron affinity reported for any diamond surface termination so far, and it exceeds the value predicted by recent density functional theory calculations by 0.43 eV. The work function of 7.24 eV measured for the same surface places the Fermi energy of 0.79 eV above the valence band maximum.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 102 (9), 091604-, 2013-03-04
AIP Publishing
