Energy transfer processes in semiconductors doped with transition metals and rare-earth elements

Victor I. Sokolov

doi:10.1117/12.229157

3 January 1996 Energy transfer processes in semiconductors doped with transition metals and rare-earth elements

Victor I. Sokolov

Proceedings Volume 2706, Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transitional-Metal Ions; (1996) https://doi.org/10.1117/12.229157
Event: Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare Earth and Transitional Ions, 1995, St. Petersburg, Russian Federation

Abstract

In the paper energy states of structured isoelectronic impurities of transition metals and rare earth elements, the donor and acceptor excitons (DE, AE) of 3d and 4f impurities, the role of DE, AE of 3d and 4f impurities in an energy transfer from the matrix to impurities are discussed. It is shown that structured impurities may be classified as 'open' and 'closed' isoelectronic impurities. The number of electrons in the 3d or 4f shells is changed at $HBAR(omega) < E_g for the open impurities and is not changed for closed impurities. The structure of energy levels generated by 3d and 4f impurities in a forbidden gap, the properties of DE and AE of these impurities and energy transfer mechanisms from the matrix to an impurity (capture of carriers into 3d or 4f shells for open impurities and auger process for closed impurities) are essentially distinguished for two kinds of structured isoelectronic impurities. For the closed impurities a model is discussed in which frame the spectra of electroabsorption, photoluminescence, cathodeluminescence and the intracenter photoconductivity are described.

Citation Download Citation

Victor I. Sokolov "Energy transfer processes in semiconductors doped with transition metals and rare-earth elements", Proc. SPIE 2706, Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transitional-Metal Ions, (3 January 1996); https://doi.org/10.1117/12.229157

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