Garcia Nunez, C. , Pau, J. L., Hernández, M. J., Cervera, M. and Piqueras, J. (2011) On the true optical properties of zinc nitride. Applied Physics Letters, 99(23), 232112. (doi: 10.1063/1.3663859)
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Abstract
Refractive index (n) and extinction coefficient (k) of Zn3N2 layers deposited by radio-frequency magnetron sputtering at temperatures (T s) between 298 and 523 K were determined by spectroscopic ellipsometry. Results showed strong variations of the apparent optical constants with T s and time attributed to surface effects. Resonant Rutherford backscattering and spectroscopic ellipsometry confirmed the formation of a ZnOsurface layer provoked by the ambient exposure. Samples grown at low Ts presented the lowest surface roughness and exhibited 2.0 < n < 2.8 and 0.6 < k< 1.0 in the 1.5–4.5 eV energy range. The extracted n and k values accurately reproduced the reflectance properties.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Garcia Nunez, Dr Carlos |
| Authors: | Garcia Nunez, C., Pau, J. L., Hernández, M. J., Cervera, M., and Piqueras, J. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Applied Physics Letters |
| Publisher: | American Institute of Physics |
| ISSN: | 0003-6951 |
| ISSN (Online): | 1077-3118 |
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