Growth and characterization of undoped and doped Bi12 TiO20 crystals

Mersch, F.; Buse, K.; Sauf, W.; Hesse, H.; Krätzig, E.

doi:10.1002/pssa.2211400127

Cited by 52 publications

(13 citation statements)

References 13 publications

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“…where T is the transmission coefficient, d is the sample thickness and R is the reflection coefficient calculated considering normal incidence and using the refractive index dispersion curve of pure BTO crystal [16]. These calculations were based on 200 µm thick samples.…”

Section: Methodsmentioning

confidence: 99%

Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

Carvalho¹,

Hernandes

2005

Cryst. Res. Technol.

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Bi 12 TiO 20 (BTO) single crystals doped with PbO and CeO 2 were grown by the Top Seeded Solution Growth (TSSG) technique from the liquid phase with nominal compositions of 10Bi 2 O 3 : (1-x)TiO 2 : x PbO and 10Bi 2 O 3 : (1-x)TiO 2 : xCeO 2 with x = 0.25 and 0.10. No growth-related difficulties were encountered other than those typical of sillenite crystals. Samples with good optical quality were obtained and were characterized by optical absorption, dark current, spectral photocurrent dependence, optical activity and electro-optic coefficient measurements. A comparison is made of the results of the optical measurements of doped and undoped BTO crystals.

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Section: Methodsmentioning

confidence: 99%

Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

Carvalho¹,

Hernandes

2005

Cryst. Res. Technol.

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“…The terbium and niobium doped BTO crystals were grown using the Top Seeded Solution Growth technique (TSSG) from nonstoichiometric liquid phases because BTO melts incongruently [8]. The raw materials were bismuth oxide (Bi2O3, Johnson Matthey, 99.995%), titanium oxide (TiO2, Johnson Matthey, 99.995%), terbium oxide (Sigma-Aldrich, 99.9%), for terbium doped BTO crystal (BTO:Tb), and niobium oxide (Nb2O5, Sigma-Aldrich, 99,99%), for niobium doped BTO crystal (BTO:Nb).…”

Section: Crystal Growthmentioning

confidence: 99%

“…where T is the transmission coefficient, d is the sample thickness, and R is the reflection coefficient, calculated considering normal incidence and using the refractive index dispersion curve for pure BTO [8]. Figure 2 shows the absorption spectra of doped and undoped BTO crystals, for comparison.…”

Section: Optical Characterizationmentioning

confidence: 99%

Crystal growth and optical characterization of terbium and niobium doped BTO single crystals

Santos¹,

Montenegro²,

Oliveira³

et al. 2017

Opt. Pura Apl.

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ABSTRACT:In this study, single crystals of Bi12TiO20 doped with niobium and terbium were grown by Top Seeded Solution Growth technique (TSSG). Samples with good optical quality were obtained and were investigated concerning optical absorption, optical activity, electro-optic effect, and photoconductivity. It was verified that doping with terbium and niobium changes the defects structure characteristic of sillenites, affecting in different ways the optical behavior of crystals.

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“…The increasing interest in these potential applications initiated the growth of large and homogeneous single crystals both doped [6][7][8] and undoped [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

An optical excitation study of Ru‐, Rh‐, Re‐ and Os‐doped Bi₁₂SiO₂₀ crystals

Скориков

Milenov

Егорышева

et al. 2007

Physica Status Solidi (b)

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We studied the influence of doping with 4d and 5d elements on the optical and photo-induced properties of Bi 12 SiO 20 (BSO) crystals. Doping with Ru, Rh and Re does not significantly influence BSO absorption spectra as well as photo-induced absorption and photocurrent in BSO. On the other hand, doping with Os with concentration of 0.0004 mass % increases by more than an order of magnitude the illumination response time, the strength of the photochromic effect and photocurrent, all this being accompanied by only a slight change of the absorption coefficient as compared to undoped BSO. The observed effects are explained in the framework of the Rose model assuming that doping with Os creates deep levels in the gap that act as recombination centers with a very little cross-section of electron capture. We also studied the kinetic curves of photocurrent increase and decrease in BSO : Os which enabled us to determine the magnitude of the cross-section of a photon capture at an impurity center.

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Growth and characterization of undoped and doped Bi12 TiO20 crystals

Cited by 52 publications

References 13 publications

Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

Crystal growth and optical characterization of terbium and niobium doped BTO single crystals

An optical excitation study of Ru‐, Rh‐, Re‐ and Os‐doped Bi₁₂SiO₂₀ crystals

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Growth and characterization of undoped and doped Bi12 TiO20 crystals

Cited by 52 publications

References 13 publications

Growth and optical characterization of cerium and lead‐doped Bi12TiO20 sillenite single crystals

Growth and optical characterization of cerium and lead‐doped Bi12TiO20 sillenite single crystals

Crystal growth and optical characterization of terbium and niobium doped BTO single crystals

An optical excitation study of Ru‐, Rh‐, Re‐ and Os‐doped Bi12SiO20 crystals

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Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

Growth and optical characterization of cerium and lead‐doped Bi₁₂TiO₂₀ sillenite single crystals

An optical excitation study of Ru‐, Rh‐, Re‐ and Os‐doped Bi₁₂SiO₂₀ crystals