CONCENTRATION ENHANCEMENT OF THE VIBRONIC TRANSITIONS OF THE PR-3+ ION

被引：30

作者：

DONEGA, CDM

ELLENS, A

MEIJERINK, A

BLASSE, G

机构：

[1] Debye Research Institute, University of Utrecht, 3508TA Utrecht

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1993年 / 54卷 / 03期

关键词：

PR-3+ SPECTROSCOPY; VIBRONICS; CONCENTRATION ENHANCEMENT; SUPEREXCHANGE INTERACTION;

D O I：

10.1016/0022-3697(93)90261-O

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effects of the Pr3+ concentration on the excitation and emission spectra of Pr3+ in (La1-xPrx)2O3, (RE1-xPrx)2O2S (RE = Y, La) (x less-than-or-equal-to 0.2), and LiY1-xPrxF4 (x less-than-or-equal-to 0.1) are investigated. Concentration enhancement of vibronic transitions and of certain zero-phonon transitions is observed for the excitation spectrum of Pr3+ in (La1-xPrx)2O3 and (RE1-xPrx)2O2S. These phenomena can be ascribed to superexchange interaction between Pr3+ ions over distances of about 10 angstrom.

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页码：293 / 300

页数：8

相关论文

共 29 条

[1] AN EXAMPLE OF CONCENTRATION SENSITIVE ELECTRON-PHONON COUPLING IN [(C4H9)4N]3EUXY1-X(NCS)6 AND A NEW HYPOTHESIS FOR SELF-QUENCHING [J].

AUZEL, F ;

DESA, GF ;

AZEVEDO, WMD .

JOURNAL OF LUMINESCENCE, 1980, 21 (02) :187-192

[2]

AUZEL F, 1991, ADV NON RADIATIVE PR, P164

[3] COEXISTENCE OF 2 EXCITATION TRANSFER MECHANISMS IN LIYF4-PR3+ [J].

BARTHEM, RB ;

BUISSON, R ;

VIAL, JC .

JOURNAL OF LUMINESCENCE, 1987, 38 (1-6) :190-192

[4] THE GD-3+ LUMINESCENCE OF THE SOLID-SOLUTIONS Y2-XGDXO2S AND Y1-XGDXF3 [J].

BLASSE, G ;

BRIXNER, LH ;

HYATT, G .

CHEMICAL PHYSICS LETTERS, 1989, 164 (06) :617-620

[5] THE INTENSITY OF VIBRONIC TRANSITIONS IN THE SPECTRA OF THE TRIVALENT EUROPIUM ION [J].

BLASSE, G .

INORGANICA CHIMICA ACTA, 1990, 167 (01) :33-37

[6] VIBRONIC TRANSITIONS IN RARE-EARTH SPECTROSCOPY [J].

BLASSE, G .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 1992, 11 (01) :71-100

[7] EFFICIENCY AND FLUORESCENCE QUENCHING OF STOICHIOMETRIC RARE-EARTH LASER MATERIALS [J].

DANIELMEYER, HG .

JOURNAL OF LUMINESCENCE, 1976, 12 (01) :179-186

[8] EXISTENCE OF COOPERATIVE ABSORPTION-LINES FOR YB-(OH,OD) PAIRS - ABSOLUTE OSCILLATOR-STRENGTHS [J].

DEXPERTGHYS, J ;

AUZEL, F .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) :4003-4012

[9] VIBRONIC TRANSITIONS IN THE EXCITATION SPECTRUM OF THE TRIVALENT PRASEODYMIUM ION [J].

DONEGA, CD ;

BLASSE, G .

CHEMICAL PHYSICS LETTERS, 1991, 183 (05) :367-371

[10] VIBRONIC TRANSITION-PROBABILITIES IN THE EXCITATION-SPECTRA OF THE PR-3+ ION [J].

DONEGA, CD ;

MEIJERINK, A ;

BLASSE, G .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (45) :8889-8902