Effect of thermal annealing on Cu-related green luminescence in ZnO

V. Avrutin; M. A. Reshchikov; N. Izyumskaya; R. Shimada; S. W. Novak; H. Morkoç

doi:10.1117/12.809477

12 February 2009 Effect of thermal annealing on Cu-related green luminescence in ZnO

V. Avrutin, M. A. Reshchikov, N. Izyumskaya, R. Shimada, S. W. Novak, H. Morkoç

Proceedings Volume 7217, Zinc Oxide Materials and Devices IV; 72170X (2009) https://doi.org/10.1117/12.809477
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

We have studied the effects of thermal annealing in air on photoluminescence of bulk ZnO crystals grown by hydrothermal technique and nominally undoped ZnO layers grown by molecular beam epitaxy on sapphire. Annealing of the samples in air at temperatures above 600°C resulted in a dramatic enhancement of the Cu-related green luminescence (GL) band peaking at 2.45 eV and having characteristic fine structure. The GL band quenched at temperatures above 300 K due to escape of holes from the excited state of the Cu_Zn acceptor to the valence band. SIMS profiles revealed moderate increase of Al concentration and significant increase of Cu concentration in annealed samples. Exciton bound to hydrogen-related donor (the 3.363 eV line) quenched after annealing the sample at temperatures above 750ºC.

Citation Download Citation

V. Avrutin, M. A. Reshchikov, N. Izyumskaya, R. Shimada, S. W. Novak, and H. Morkoç "Effect of thermal annealing on Cu-related green luminescence in ZnO", Proc. SPIE 7217, Zinc Oxide Materials and Devices IV, 72170X (12 February 2009); https://doi.org/10.1117/12.809477

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available