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Investigation of ZnO as a perspective material for photonics

✍ Scribed by Khranovskyy, V. ;Yazdi, G. R. ;Lashkarev, G. ;Ulyashin, A. ;Yakimova, R.


Book ID
105364681
Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
316 KB
Volume
205
Category
Article
ISSN
0031-8965

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✦ Synopsis


Abstract

Emissive properties of ZnO are of great interests in terms of the UV LED device design. The persistent β€œgreen” luminescence due to deep defect is an obstacle for obtaining an intense UV emission, expected from ZnO. We report the positive role of thermally diffused H toward quenching the defect emission in ZnO. It is suggested that hydrogen passivates defects responsible for DLE, resulting in efficient near band edge luminescence. As‐grown ZnO/SiN__~x~__:H/Si films, deposited at 350 Β°C demonstrate intense narrow peaks of UV emission at 380 nm and a ratio of emission intensities, NBE/DLE β‰ˆ 42. (Β© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


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