Schwöbel, André and Precht, Ruben and Motzko, Markus and Carrillo Solano, Mercedes A. and Calvet, Wolfram and Hausbrand, René and Jaegermann, Wolfram (2014):
Determination of the valence band structure of an alkali phosphorus oxynitride glass: A synchrotron XPS study on LiPON.
In: Applied Surface Science, 321, pp. 55-60. Elsevier Science Publishing, ISSN 01694332,
[Article]
Abstract
Lithium phosphorus oxynitride (LiPON) is a solid state electrolyte commonly used in thin film batteries (TFBs). Advanced TFBs face the issue of detrimental electrode–electrolyte interlayer formation, related to the electronic structure of the interface.
In this contribution, we study the valence band structure of LiPON using resonant photoemission and synchrotron photoemission with variable excitation energies. The identification of different valence band features is done according to the known valence band features of meta- and orthophosphates. Additionally we compare our results with partial density of states simulations from literature. We find that the valence band structure is similar to the known metaphosphates with an additional contribution of nitrogen states at the top of the valence band. From the results we conclude that synchrotron X-ray photoemission (XPS) is a useful tool to study the valence band structure of nitridated alkali phosphate glasses.
| Item Type: | Article |
|---|---|
| Erschienen: | 2014 |
| Creators: | Schwöbel, André and Precht, Ruben and Motzko, Markus and Carrillo Solano, Mercedes A. and Calvet, Wolfram and Hausbrand, René and Jaegermann, Wolfram |
| Title: | Determination of the valence band structure of an alkali phosphorus oxynitride glass: A synchrotron XPS study on LiPON |
| Language: | English |
| Abstract: | Lithium phosphorus oxynitride (LiPON) is a solid state electrolyte commonly used in thin film batteries (TFBs). Advanced TFBs face the issue of detrimental electrode–electrolyte interlayer formation, related to the electronic structure of the interface. In this contribution, we study the valence band structure of LiPON using resonant photoemission and synchrotron photoemission with variable excitation energies. The identification of different valence band features is done according to the known valence band features of meta- and orthophosphates. Additionally we compare our results with partial density of states simulations from literature. We find that the valence band structure is similar to the known metaphosphates with an additional contribution of nitrogen states at the top of the valence band. From the results we conclude that synchrotron X-ray photoemission (XPS) is a useful tool to study the valence band structure of nitridated alkali phosphate glasses. |
| Journal or Publication Title: | Applied Surface Science |
| Journal volume: | 321 |
| Publisher: | Elsevier Science Publishing |
| Uncontrolled Keywords: | LiPON, Solid electrolyte, Lithium phosphorus oxynitride, Resonant photoemission, Valence band |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Surface Science 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences |
| Date Deposited: | 27 Feb 2015 10:11 |
| Official URL: | http://dx.doi.org/10.1016/j.apsusc.2014.09.174 |
| Identification Number: | doi:10.1016/j.apsusc.2014.09.174 |
| Funders: | The authors would like to thank the BMBF (13N11843) and Catrene (CT402) for funding in the 9D Sense project. , Additionally the authors would like to thank the BMBF (03KP801) for funding the UHV system DAISY-BAT. |
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