OPTICALLY INDUCED CHARGE-TRANSFER PATHS BETWEEN DEFECTS IN BATIO3 CONTAINING RHODIUM

被引：24

作者：

KROSE, H ^{[1
]}

POSSENRIEDE, E ^{[1
]}

SCHARFSCHWERDT, R ^{[1
]}

VARNHORST, T ^{[1
]}

SCHIRMER, OF ^{[1
]}

HESSE, H ^{[1
]}

KUPER, C ^{[1
]}

机构：

[1] UNIV OSNABRUCK,FACHBEREICH PHYS,D-49069 OSNABRUCK,GERMANY

来源：

OPTICAL MATERIALS | 1995年 / 4卷 / 2-3期

关键词：

Hole trap - Optical method - Photorefractive crystals;

D O I：

10.1016/0925-3467(94)00053-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An optical method is presented which allows to identify at room temperature the photoinduced charge transfers between different defects in photorefractive crystals. The analysis is based on the labelling of the optical spectra with the corresponding microscopic defect models, obtained from simultaneously recording light induced ESR and optical absorption changes at low temperatures. The investigation of as-grown BaTiO3 crystals containing Rh, using this method, shows that illumination with light of energies between 1.2 eV and 2.5 eV transfers holes from Rh4+ to Fe3+. At E > 2.5 eV holes are photoionized from Fe4+ to Rh3+ and to an unidentified shallower hole trap.

引用

页码：153 / 157

页数：5

共 12 条

[1] IDENTIFICATION OF FE4+ AND FE5+ CHARGE-TRANSFER PHOTOCHROMIC ABSORPTION-BANDS IN SRTIO3 [J].

BLAZEY, KW ;

SCHIRMER, OF ;

BERLINGER, W ;

MULLER, KA .

SOLID STATE COMMUNICATIONS, 1975, 16 (05) :589-592

[2] INTENSITY-DEPENDENT ABSORPTION AND PHOTOREFRACTIVE EFFECTS IN BARIUM-TITANATE [J].

BROST, GA ;

MOTES, RA ;

ROTGE, JR .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1988, 5 (09) :1879-1885

[3]

BUSE K, COMMUNICATION

[4] CRYSTAL-GROWTH OF K(TA1-XNBX)O3 SOLID-SOLUTIONS [J].

HELLERMANN, B ;

BALLER, F ;

GATHER, B ;

HESSE, H ;

PANKRATH, R .

FERROELECTRICS, 1991, 124 (1-4) :67-72

[5] A MODEL FOR THE NONLINEAR PHOTOCONDUCTIVITY OF BATIO3 [J].

HOLTMANN, L .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1989, 113 (01) :K89-K93

[6]

MCNAMARA TW, 1994, SPIE CRITICAL RE CR, V48

[7] PARAMAGNETIC DEFECTS IN BATIO3 AND THEIR ROLE IN LIGHT-INDUCED CHARGE TRANSPORT - OPTICAL STUDIES [J].

POSSENRIEDE, E ;

JACOBS, P ;

KROSE, H ;

SCHIRMER, OF .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1992, 55 (01) :73-81

[8]

POSSENRIEDE E, 1992, J PHYS-CONDENS MAT, V4, P479

[9] IMPURITY ENHANCED SELF-PUMPED PHASE-CONJUGATION IN THE NEAR-INFRARED IN BLUE BATIO3 [J].

ROSS, GW ;

HRIBEK, P ;

EASON, RW ;

GARRETT, MH ;

RYTZ, D .

OPTICS COMMUNICATIONS, 1993, 101 (1-2) :60-64

[10] THE ROLE OF IMPURITIES IN INSULATING TRANSITION-METAL OXIDES [J].

SMYTH, DM .

PROGRESS IN SOLID STATE CHEMISTRY, 1984, 15 (03) :145-171

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