Abstract

Non-polar-oriented ZnO/Zn0.81Mg0.19O multiple quantum wells (MQWs) were grown on r-plane sapphire substrates by plasma-assisted molecular beam epitaxy. The internal quantum efficiency (ηint) of the non-polar MQWs was only 1.8%. The degraded quality of non-polar MQWs is the main factor for the low ηint. Besides improving the quality of non-polar MQWs, an effective way to enhance the UV emission of the non-polar MQWs by sputtering Pt nanoparticles has been used. Employing the resonant coupling between UV emission from the MQWs and Pt nanoparticle surface plasmons (SPs), a 20-fold enhancement of the UV emission has been achieved under the optimized sputtering time. Moreover, the ηint value of the non-polar MQWs has been strongly improved with the help of Pt. 6.7-fold enhancement of ηint has been achieved due to SPs coupling. It paves a new way in designing highly efficient non-polar LEDs.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Great photoluminescence enhancement in Al-sputtered Zn0.78Mg0.22O films

Yonghui Zhou, Shanshan Chen, Xinhua Pan, and Zhizhen Ye
Opt. Lett. 42(24) 5129-5132 (2017)

Photoluminescence enhancement in non-polar ZnO films through metallodielectric mediated Al surface plasmons

Yonghui Zhou, Shanshan Chen, Xinhua Pan, and Zhizhen Ye
Opt. Lett. 43(10) 2288-2291 (2018)

60-fold photoluminescence enhancement in Pt nanoparticle-coated ZnO films: role of surface plasmon coupling and conversion of non-radiative recombination

Shanshan Chen, Xinhua Pan, Haiping He, Wei Chen, Wen Dai, Cong Chen, Honghai Zhang, Ping Ding, Jingyun Huang, Bin Lu, Jianguo Lu, and Zhizhen Ye
Opt. Lett. 40(12) 2782-2785 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription