The Effect of Tensile Strain on Optical Anisotropy and Exciton of m-Plane ZnO

The Effect of Tensile Strain on Optical Anisotropy and Exciton of m-Plane ZnO

The near band edge emission of the tensile-strained m-plane ZnO film grown on (112)LaAlO 3 substrates shows abnormal low polarization degree (ρ = 0.1). The temperature dependency of polarization degree clarifies the origins of different emission peaks. In tensile-strained m-plane ZnO, the [0001] pol...

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Veröffentlicht in:IEEE photonics journal 2015-04, Vol.7 (2), p.1-8
Hauptverfasser: Wang, H. H., Tian, J. S., Chen, C. Y., Huang, H. H., Yeh, Y. C., Deng, P. Y., Chang, L., Chu, Y. H., Wu, Y. R., He, J. H.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropic magnetoresistance
Geometrical optics
Optical films
Optical polarization
Strain
Zinc oxide
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Zusammenfassung:The near band edge emission of the tensile-strained m-plane ZnO film grown on (112)LaAlO 3 substrates shows abnormal low polarization degree (ρ = 0.1). The temperature dependency of polarization degree clarifies the origins of different emission peaks. In tensile-strained m-plane ZnO, the [0001] polarized state is upper shifted and is overlapping with the [112̅0] polarized state. This phenomenon causes the abnormal low polarization degree and reveals the effect of strain on the emission anisotropy of m-plane ZnO.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2015.2415672