Radiation-enhanced thermal diffusion of transition metal and rare earth ions into II-VI semiconductors

Alán Martinez; Lamario Williams; Ozarfar Gafarov; Dmitry Martyshkin; Vladimir Fedorov; Sergey Mirov

doi:10.1117/12.2080409

20 February 2015 Radiation-enhanced thermal diffusion of transition metal and rare earth ions into II-VI semiconductors

Alán Martinez, Lamario Williams, Ozarfar Gafarov, Dmitry Martyshkin, Vladimir Fedorov, Sergey Mirov

Proceedings Volume 9342, Solid State Lasers XXIV: Technology and Devices; 93420G (2015) https://doi.org/10.1117/12.2080409
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

We report on study of gamma radiation-enhanced thermal diffusion of Transition Metal and Rare Earth ions into IIVI semiconductor crystals. ZnSe and ZnS samples with of iron thin film deposited on one facet were sealed in evacuated quartz ampoules at 10^-3 Torr. The crystals were annealed for 14 days at 950°C under γ-irradiation from ⁶⁰Co source. The irradiation dose rates of 43.99 R/s, 1.81 R/s were varied by distance between 60Co source and furnaces. For comparison, the samples were also annealed without irradiation at the same temperature. The spatial distributions of transition metal were measured by absorption of focused laser radiation at ⁵T₂-5E mid-IR transitions of iron ions. In addition, samples of ZnSe were similarly sealed in evacuated quartz ampoules in the presence of Praseodymium metal and annealed at 950°C under 43.99 R/s and 0 R/s and the diffusion lengths and Pr concentrations were compared. The γ-irradiation results in better intrusion of the iron ions from the metal film and increase of the diffusion length at ~25%, while Praseodymium diffusion is dramatically enhanced by γ-irradiation during the annealing process.

Citation Download Citation

Alán Martinez, Lamario Williams, Ozarfar Gafarov, Dmitry Martyshkin, Vladimir Fedorov, and Sergey Mirov "Radiation-enhanced thermal diffusion of transition metal and rare earth ions into II-VI semiconductors", Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93420G (20 February 2015); https://doi.org/10.1117/12.2080409

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