Development of Composite Scintillators Based on the LuAG: Pr Single Crystalline Films and LuAG:Sc Single Crystals

The scintillation properties of novel type of composite scintillator based on Lu3Al5O12:Pr (LuAG:Pr) single crystalline film (SCF) and LuAG:Sc substrate grown by the liquid-phase epitaxy method are considered in this work. The registration of α-particles and γ-quanta in such types of composites occurs by means of separation of the scintillation decay kinetics of SCF and crystal parts, respectively. Namely, under excitation by α-particles of 241Am (5.5 MeV) source and γ-quanta of 137Cs (662 keV) source, the large differences in the respective scintillation decay kinetics and decay time values tα and tγ are observed for the LuAG:Pr SCF/LuAG:Sc SC composite scintillator with various film thicknesses. Furthermore, the best tγ/tα ratio above 4.5 is achieved for such types of epitaxial structure with SCF and substrate thicknesses of 17 μm and about 0.5 mm, respectively. The development types of composite scintillators can be successfully applied for simultaneous registration of α-particles and γ-quanta in the mixed radiation fluxes.

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LPE Growth of Composite Thermoluminescent Detectors Based on the Lu3−xGdxAl5O12:Ce Single Crystalline Films and YAG:Ce Crystals

Crystals ◽

10.3390/cryst10030189 ◽

2020 ◽

Vol 10 (3) ◽

pp. 189 ◽

Cited By ~ 1

Author(s):

Sandra Witkiewicz-Lukaszek ◽

Anna Mrozik ◽

Vitalii Gorbenko ◽

Tetiana Zorenko ◽

Pawel Bilski ◽

...

Keyword(s):

Liquid Phase ◽

Liquid Phase Epitaxy ◽

Single Crystalline ◽

Epitaxial Structure ◽

Simultaneous Registration ◽

Crystalline Films ◽

Ionization Radiation ◽

Growth Method ◽

The Difference ◽

Thermoluminescent Detectors

This work is dedicated to the development of new types of composite thermoluminescent (TL) detectors for simultaneous registration of the different components of ionization radiation based on the single crystalline films (SCFs) of Ce3+-doped Lu3−xGdxAl5O12:Ce (x = 0–1.5) garnet and Y3Al5O12:Ce (YAG:Ce) substrates using the liquid phase epitaxy (LPE) growth method. For this purpose, the TL properties of the mentioned epitaxial structures were examined in Risø TL/OSL-DA-20 reader under excitation by α- and β-particles from 242Am and 90Sr-90Y sources. We have shown that the cation engineering of SCF content can result in more significant separation of the TL glow curves of SCFs and substrates under α- and β-particle excitations in comparison with the prototype of such composite detectors based on the Lu3Al5O12:Ce (LuAG:Ce)/YAG:Ce epitaxial structure. Specifically, the difference between the TL glow curves of Lu1.5Gd1.5Al5O12:Ce SCFs and YAG:Ce substrates increases up to 120 K in comparison with a respective value of 80 degrees in the prototype based on the LuAG:Ce/YAG:Ce epitaxial structure. Therefore, the LPE-grown epitaxial structures containing Lu1.5Gd1.5Al5O12:Ce SCFs and Ce3+-doped YAG:Ce substrate can be successfully applied for simultaneous registration of α- and β-particles in mixed fluxes of ionization radiation.

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Epitaxial growth of single-crystalline-film scintillators based on Tb3+-doped and Tb3+–Ce3+-codoped Gd1–xLuxAlO3 (x = 0–1) mixed perovskites

CrystEngComm ◽

10.1039/c8ce01889h ◽

2019 ◽

Vol 21 (9) ◽

pp. 1433-1441 ◽

Cited By ~ 1

Author(s):

V. Gorbenko ◽

T. Zorenko ◽

K. Paprocki ◽

F. Riva ◽

P. A. Douissard ◽

...

Keyword(s):

Liquid Phase ◽

Epitaxial Growth ◽

Liquid Phase Epitaxy ◽

Single Crystalline ◽

Crystalline Film ◽

Crystalline Films ◽

Single Crystalline Film

The paper is dedicated to the development of scintillating screens based on the single crystalline films of singly Tb3+ and doubly Tb3+–Ce3+ doped Gd1–xLuxAlO3 (x = 0–1) perovskites grown onto YAlO3 substrates using the liquid phase epitaxy method.

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Epitaxial growth of single crystalline film scintillating screens based on Eu3+ doped RAlO3 (R = Y, Lu, Gd, Tb) perovskites

CrystEngComm ◽

10.1039/c7ce02074k ◽

2018 ◽

Vol 20 (7) ◽

pp. 937-945 ◽

Cited By ~ 7

Author(s):

V. Gorbenko ◽

T. Zorenko ◽

K. Paprocki ◽

F. Riva ◽

P. A. Douissard ◽

...

Keyword(s):

Liquid Phase ◽

Epitaxial Growth ◽

Liquid Phase Epitaxy ◽

Single Crystalline ◽

Crystalline Film ◽

Crystalline Films ◽

Single Crystalline Film

The study is dedicated to the development of scintillating screens for microimaging applications based on the single crystalline films of Eu3+-doped (Y,Lu,Gd,Tb)AlO3-mixed perovskites using the liquid phase epitaxy method.

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Epitaxial growth of single crystalline film scintillators based on the Pr3+ doped solid solution of Lu3Al5−xGaxO12 garnet

CrystEngComm ◽

10.1039/c7ce01376k ◽

2017 ◽

Vol 19 (46) ◽

pp. 7031-7040

Author(s):

V. Gorbenko ◽

T. Zorenko ◽

K. Paprocki ◽

B. Machlovanyi ◽

B. Mazalon ◽

...

Keyword(s):

Solid Solution ◽

Epitaxial Growth ◽

Single Crystalline ◽

Crystalline Film ◽

Crystalline Films ◽

Single Crystalline Film

Scintillating screens based on single crystalline films of Lu3Al5−xGaxO12:Pr garnet have been developed by the LPE method onto YAG substrates using BaO based flux.

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UV emitting single crystalline film scintillators grown by LPE method: current status and perspective

MRS Proceedings ◽

10.1557/opl.2011.1113 ◽

2011 ◽

Vol 1341 ◽

Author(s):

Yuriy Zorenko ◽

Vitaliy Gorbenko ◽

Volodymyr Savchyn ◽

Taras Voznyak ◽

Miroslaw Batentschuk ◽

...

Keyword(s):

Decay Time ◽

Luminescence Decay ◽

Current Status ◽

Single Crystalline ◽

Crystalline Film ◽

Crystalline Films ◽

New Type ◽

Single Crystalline Film ◽

Spectral Ranges ◽

Nm Range

ABSTRACTThis work is dedicated to the development of new type of UV phosphors based on single crystalline films (SCF) of aluminum garnet compounds grown by liquid phase epitaxy (LPE). The development of two types of UV emitting SCF scintillators is reported in this work: 1) Pr-doped SCF of Y-Lu-Al garnet having the intensive Pr3+ f-d luminescence in the 300-400 nm spectral ranges with a decay time of about 13-18 ns; 2) SCF of Y-Lu-Al-garnet doped with Sc3+ isoelectronic impurity emitting in the 290-400 nm range due to the formation of the ScY,Lu and ScAl centers with a luminescence decay time in the order of several hundred ns.

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Seeded 2D epitaxy of large-area single-crystal films of the van der Waals semiconductor 2H MoTe2

Science ◽

10.1126/science.abf5825 ◽

2021 ◽

Vol 372 (6538) ◽

pp. 195-200

Author(s):

Xiaolong Xu ◽

Yu Pan ◽

Shuai Liu ◽

Bo Han ◽

Pingfan Gu ◽

...

Keyword(s):

Large Scale ◽

Van Der Waals ◽

Electrical Performance ◽

Large Area ◽

Single Crystalline ◽

Crystalline Film ◽

Single Crystal Films ◽

Crystal Films ◽

Crystalline Films ◽

Single Crystalline Film

The integration of two-dimensional (2D) van der Waals semiconductors into silicon electronics technology will require the production of large-scale, uniform, and highly crystalline films. We report a route for synthesizing wafer-scale single-crystalline 2H molybdenum ditelluride (MoTe2) semiconductors on an amorphous insulating substrate. In-plane 2D-epitaxy growth by tellurizing was triggered from a deliberately implanted single seed crystal. The resulting single-crystalline film completely covered a 2.5-centimeter wafer with excellent uniformity. The 2H MoTe2 2D single-crystalline film can use itself as a template for further rapid epitaxy in a vertical manner. Transistor arrays fabricated with the as-prepared 2H MoTe2 single crystals exhibited high electrical performance, with excellent uniformity and 100% device yield.

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Epitaxial growth of composite scintillators based on Tb3Al5O12 : Ce single crystalline films and Gd3Al2.5Ga2.5O12 : Ce crystal substrates

CrystEngComm ◽

10.1039/c8ce00536b ◽

2018 ◽

Vol 20 (28) ◽

pp. 3994-4002 ◽

Cited By ~ 8

Author(s):

S. Witkiewicz-Lukaszek ◽

V. Gorbenko ◽

T. Zorenko ◽

K. Paprocki ◽

O. Sidletskiy ◽

...

Keyword(s):

Epitaxial Growth ◽

Single Crystalline ◽

Simultaneous Registration ◽

Crystalline Films ◽

Growth Method ◽

Α Particles

The composite scintillators based on the single crystalline films of TbAG : Ce garnet and GAGG : Ce crystal substrates was developed using the LPE growth method for simultaneous registration of α-particles and γ-quanta in mixed ionizing fluxes.

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LPE growth of Tb3Al5O12:Ce single crystalline film converters for WLED application

CrystEngComm ◽

10.1039/d1ce00268f ◽

2021 ◽

Author(s):

Anton Markovskyi ◽

Vitalii Gorbenko ◽

Tetiana Zorenko ◽

Tadahiro Yokosawa ◽

Johannes Will ◽

...

Keyword(s):

Liquid Phase ◽

Liquid Phase Epitaxy ◽

White Led ◽

Single Crystalline ◽

Crystalline Film ◽

Crystalline Films ◽

Single Crystalline Film

The possibility of development of an efficient phosphor converters (PC) for white LED (WLED) based on single crystalline films (SCF) of Ce3+ doped Tb3Al5O12 garnet (TbAG:Ce), grown using liquid-phase epitaxy...

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