Radiative properties of n-ZnSe single crystals doped with Ag

Galina N. Ivanova; Vladimir A. Kasiyan; Dmitri D. Nedeoglo; Natalia D. Nedeoglo

doi:10.1117/12.347408

5 May 1999 Radiative properties of n-ZnSe single crystals doped with Ag

Galina N. Ivanova, Vladimir A. Kasiyan, Dmitri D. Nedeoglo, Natalia D. Nedeoglo

Proceedings Volume 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (1999) https://doi.org/10.1117/12.347408
Event: International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 1998, St. Petersburg, Russian Federation

Abstract

Ag impurity exists in ZnSe as interstitial atoms Ag_i and substitution atoms Ag_zn. The structure of photoluminescence (PL) spectra of the ZnSe crystals doped with Ag depends on quantitative ratio of these defects in the crystal. Evidently, this is a cause of significant difference of PL spectra of n-ZnSe crystals doped with Ag either in the growing process or in the process of annealing in the Zn+Ag melt. The questions of electron configuration and of a charge state of Ag impurity in ZnSe is discussed also in the literature. Theoretical analysis of this problem allows the existence possibility of Ag multi-charged states in ZnSe, while the authors assume that Ag in ZnSe exists only in the single-charged state with d¹⁰-electron configuration. In this work, the PL spectra and photoluminescence excitation (PLE) spectra of n-ZnSe single crystals annealed in Zn melt with Ag contents from 0.1 at.% to 20 at.% are investigated in the temperature range from 82 K to 300 K. The annealing was made at the temperature of 950 degrees Celsius during the 100 h. At the termination of annealing the quartz ampoules were immersed in cold water for the sharp cooling of the samples. Luminescence was excited either by radiation of LGI-21 laser with the wavelength of 337 nm (E_excit equals 3.68 eV) or by monochromatic light from VSU-1 monochromator with the halogen lamp. The investigation of PL spectra was carried out using MDR-23 monochromator with the line dispersion of 1.4 nm/mm in the wavelength region from 430 nm to 700 nm.

Citation Download Citation

Galina N. Ivanova, Vladimir A. Kasiyan, Dmitri D. Nedeoglo, and Natalia D. Nedeoglo "Radiative properties of n-ZnSe single crystals doped with Ag", Proc. SPIE 3687, International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (5 May 1999); https://doi.org/10.1117/12.347408

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
2 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Silver

Crystals

Luminescence

Excitons

Annealing

Chemical species

Monochromators

Show All Keywords

Keywords/Phrases

Search In:

Publication Years