Phenomenological characterization of photoactive centers in Bi12TiO20 crystals

被引：21

作者：

Frejlich, Jaime ^{[1
]}

Montenegro, Renata

Inocente-Junior, Nilson R.

dos Santos, Pedro V.

Launay, Jean Claude

Longeaud, Christophe

Carvalho, Jesiel F.

机构：

[1] Univ Estadual Campinas, IFGW, Lab Opt, BR-13083970 Sao Paulo, Brazil

[2] Univ Bordeaux 1, CNRS, ICMCB, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France

[3] Univ Paris 06, CNRS, Ecole Super Elect, Lab Genie Elect Paris,UMR 8507, F-91190 Gif Sur Yvette, France

[4] Univ Paris 11, CNRS, Ecole Super Elect, Lab Genie Elect Paris,UMR 8507, F-91190 Gif Sur Yvette, France

[5] Unic Fed Goias, Inst Fis, BR-94001970 Goiania, Go, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1063/1.2434009

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report optical and electrical measurements contributing for a better characterization of the relevant photoactive center levels in undoped photorefractive Bi12TiO20 (BTO) crystals grown in Brazil. Comparative results for Pb-doped BTO and Bi12GaO20 are also reported. A center responsible for photochromism was identified at 0.42-0.44 eV, probably below the conduction band (CB). The main electron and hole donor center is detected at 2.2 eV from the CB and the equilibrium Fermi level is pinned at this level. Other localized centers were identified at different positions in the band gap and their relation with the behavior of BTO under different wavelengths and operating conditions is discussed with particular attention to holographic recording.

引用

页数：12

共 25 条

[1] ELECTRICAL AND OPTICAL PROPERTIES OF BI12SIO20 [J].

ALDRICH, RE ;

HOU, SL ;

HARVILL, ML .

JOURNAL OF APPLIED PHYSICS, 1971, 42 (01) :493-&

[2] SPECTRAL DEPENDENCE OF PHOTOREFRACTIVE ERASURE IN BI12GEO20 AND BI12SIO20 [J].

BAQUEDANO, JA ;

CONTRERAS, L ;

DIEGUEZ, E ;

CABRERA, JM .

JOURNAL OF APPLIED PHYSICS, 1989, 66 (11) :5146-5150

[3] Light-induced charge transport processes in photorefractive crystals .1. Models and experimental methods [J].

Buse, K .

APPLIED PHYSICS B-LASERS AND OPTICS, 1997, 64 (03) :273-291

[4] Growth and optical characterization of cerium and lead-doped Bi12TiO20 sillenite single crystals [J].

Carvalho, JF ;

Hernandes, AC .

CRYSTAL RESEARCH AND TECHNOLOGY, 2005, 40 (09) :847-851

[5] Gallium-induced inhibition of the photorefractive properties of sillenite crystals [J].

Coya, C ;

Zaldo, C ;

Volkov, VV ;

Egorysheva, AV ;

Polgar, K ;

Peter, A .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1996, 13 (05) :908-915

[6] QUASI-NONDESTRUCTIVE READOUT OF HOLOGRAPHICALLY STORED INFORMATION IN PHOTOREFRACTIVE BI12SIO20 CRYSTALS [J].

DELBOULBE, A ;

FROMONT, C ;

HERRIAU, JP ;

MALLICK, S ;

HUIGNARD, JP .

APPLIED PHYSICS LETTERS, 1989, 55 (08) :713-715

[7] Direct near infrared photorefractive recording and pre-exposure controlled hole-electron competition with enhanced recording in undoped Bi12TiO20 [J].

dos Santos, PV ;

Frejlich, J ;

Carvalho, JF .

APPLIED PHYSICS B-LASERS AND OPTICS, 2005, 81 (05) :651-655

[8]

DOSSANTOS PV, 2007, OPT MATER, V29, P642

[9] DETERMINATION OF THE MOBILITY AND TRANSPORT-PROPERTIES OF PHOTOCARRIERS IN BI12GEO20 BY THE TIME-OF-FLIGHT TECHNIQUE [J].

ENNOURI, A ;

TAPIERO, M ;

VOLA, JP ;

ZIELINGER, JP ;

MOISAN, JY ;

LAUNAY, JC .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (04) :2180-2191

[10] Advances in real-time holographic interferometry for the measurement of vibrations and deformations [J].

Frejlich, J ;

Garcia, PM .

OPTICS AND LASERS IN ENGINEERING, 1999, 32 (06) :515-527

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