Effects of gamma-ray irradiation on the microstructural and luminescent properties of radio-frequency magnetron-sputtered GaN thin films

Ching-Wu Wang; BoShao Soong; ChungTung Tzeng; Jing-Yu Chen; ChihLiang Chen

doi:10.1117/12.392117

11 July 2000 Effects of gamma-ray irradiation on the microstructural and luminescent properties of radio-frequency magnetron-sputtered GaN thin films

Ching-Wu Wang, BoShao Soong, ChungTung Tzeng, Jing-Yu Chen, ChihLiang Chen

Author Affiliations +

Proceedings Volume 4078, Optoelectronic Materials and Devices II; (2000) https://doi.org/10.1117/12.392117
Event: Photonics Taiwan, 2000, Taipei, Taiwan

Abstract

The microstructural and luminescent properties of sputtered GaN thin films pre-irradiated and the (gamma) -ray irradiated were systematically investigated. Analytical results revealed that the increasing dose of (gamma) -rays could enhance the more occurrence of nitrogen vacancies which not only created a prominent deep level luminescence but also destroyed the crystallinity of GaN thin films. For lose dose of (gamma) -ray irradiation (4 Mrad (GaN)), evidence showed that by raising the irradiation dose, more associated Ga-H complexes will be effectively promoted, yielding an enhanced yellow bad emission. However for high dose of (gamma) -ray irradiation (4 Mrad (GaN)), further higher dose of (gamma) - rays could lead the dissociation of Ga-H complexes in GaN samples, resulting in a repressed yellow band emission.

Citation Download Citation

Ching-Wu Wang, BoShao Soong, ChungTung Tzeng, Jing-Yu Chen, and ChihLiang Chen "Effects of gamma-ray irradiation on the microstructural and luminescent properties of radio-frequency magnetron-sputtered GaN thin films", Proc. SPIE 4078, Optoelectronic Materials and Devices II, (11 July 2000); https://doi.org/10.1117/12.392117

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