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Scintillators cover an important wide range of applications in detection and imaging. In this paper we are presenting growth and performance results of several advanced large diameter thallium-based ternary halide crystals are presented.…

Instrumentation and Detectors · Physics 2023-09-14 Rastgo Hawrami

Research in ceramic scintillators has steadily progressed alongside the research in bulk single crystal scintillator growth. As interest in faster scintillation material production with lower cost increases, more research on scintillating…

Instrumentation and Detectors · Physics 2021-07-28 R. Hawrami , E. Ariesanti , H. Parkhe , A. Burger

We describe a simple procedure for optimising the growth condition for high quality single crystals of the strontium ruthenate perovskites using an image furnace. The procedure involves carefully measuring the mass lost during crystal…

Materials Science · Physics 2009-11-10 R. S. Perry , Y. Maeno

We report an easy and versatile route for the synthesis of the parent phase of newest superconducting wonder material i.e. p-Terphenyl. Doped p-terphenyl has recently shown superconductivity with transition temperature as high as 120K. For…

We present results on the growth of CdTe-HgTe core-shell nanowires, a realization of a quasi one-dimensional heterostructure of the topological insulator HgTe. The growth is a two step process consisting of the growth of single crystalline…

Materials Science · Physics 2017-07-12 M. Kessel , J. Hajer , G. Karczewski , C. Schumacher , C. Brüne , H. Buhmann , L. W. Molenkamp

Incorporation of $\mathrm{Al_{y}Ga_{1-y}N}$ (AGN) semiconductors into high power electronics offers efficiency improvements in power transmission, generation, and use, if approaches to eliminate the defects arising from film-lattice…

Cd1-xZnxTe crystals with x in the range of 0.1-0.2 were grown by the high-pressure vertical Bridgman method from pre-synthesized CZT. Resistive graphite heaters were used to control the temperature profiles within the furnaces, and an argon…

Here we report successful single crystal growth of new possible magnetic topological insulator (MTI) FeBi2Te4 by self-flux method via vacuum encapsulation process. The detailed Rietveld analysis of Powder XRD data shows the as grown MTI…

Materials Science · Physics 2020-04-29 Ankush Saxena , Poonam Rani , S. Patnaik , Vipin Nagpal , I. Felner , V. P. S. Awana

New generation Cadmium Telluride (CZT & CdTe) solid state detectors can provide high quantum efficiency with reasonably good energy resolution and can operate at near room temperature; an unique advantage for space experiments. We present…

Astrophysics · Physics 2009-11-13 J. S. Yadav , S. Savitri , J. P. Malkar

We established a simple thermal model of the heat flow in a large crystal detector designed for a neutrinoless double beta decay experiment. The detector is composed of a CaMoO$_{4}$ crystal and a metallic magnetic calorimeter (MMC). The…

Instrumentation and Detectors · Physics 2014-09-12 G. B. Kim , S. Choi , Y. S. Jang , H. J. Kim , Y. H. Kim , V. V. Kobychev , H. J. Lee , J. H. Lee , J. Y. Lee , M. K. Lee , S. J. Lee , W. S. Yoon

Efficient and precise calculations of thermal transport properties and figure of merit, alongside a deep comprehension of thermal transport mechanisms, are essential for the practical utilization of advanced thermoelectric materials. In…

A new approach to grow FeSe1-xTex single crystals with optical zone-melting technique was successfully employed. Crystals with actual composition 0.4 < x < 1.0 all show high crystallinity with no phase separation. The ability to visually…

Superconductivity · Physics 2009-11-16 K. W. Yeh , C. T. Ke , T. W. Huang , T. K. Chen , Y. L. Huang , P. M. Wu , M. K. Wu

The preparation method of thermoelectric PbTe-CdTe semiconductor nanocomposite in the form of a bulk material doped with Bi, I or Na, intended for production the mid-temperature thermoelectric energy generators is presented. The method…

Materials Science · Physics 2023-06-16 M. Szot , K. Dybko , A. Mycielski , A. Reszka , R. Minikayev , P. Dziawa , T. Story

Samples suitable for electron diffraction studies must satisfy certain characteristics such as having a thickness in the range of 10 - 100 nm. We report, to our knowledge, the first successful synthesis technique of nanometer-thin sheets of…

Chemical Physics · Physics 2024-01-17 Hazem Daoud , Sreelaja Pulleri Vadhyar , Ehsan Nikbin , Cheng Lu , R. J. Dwayne Miller

We have designed and constructed a compact rotary substrate heater for the temperature range from 25 $^\circ$C to 700 $^\circ$C. The heater can be implemented in any deposition system where crystalline samples are needed. Its main function…

Instrumentation and Detectors · Physics 2020-12-04 Israel Perez , Tareik Netro , Mario Vazquez , Jose Elizalde

The main methods grown Cadmium Zinc Telluride (CZT) crystals with high yield and excellent homogeneity are Modified Horizontal Bridgman (MHB) and High Pressure Bridgman (HPB) processes, respectively. In this contribution, the readout system…

Astrophysics · Physics 2008-11-20 Q. Li , A. Garson , P. Dowkontt , J. Martin , M. Beilicke , I. Jung , M. Groza , A. Burger , G. De Geronimo , H. Krawczynski , . , . , . , .

The bulk single crystals of $S = 1$ chain compound Ni(C$_3$H$_{10}$N$_2$)$_2$NO$_2$ClO$_4$ are grown by using a slow evaporation method at a constant temperature and a slow cooling method. It is found that the optimum condition of growing…

Strongly Correlated Electrons · Physics 2013-11-13 W. Tao , L. M. Chen , X. M. Wang , C. Fan , W. P. Ke , X. G. Liu , Z. Y. Zhao , Q. J. Li , X. F. Sun

Graded composition CdxZn1-xTe films were prepared by growing several alternate layers of CdTe and ZnTe by the Isothermal Close Space Sublimation technique. The thickness of both kinds of layers was modified along the structure to produce an…

High quality single crystals of heavy Fermion CeCoIn5 superconductor have been grown by flux method with a typical size of (1~2)mm x (1~2)mm x ~0.1 mm. The single crystals are characterized by structural analysis from X-ray diffraction and…

The thermal stability and structural evolution of a GaN high-electron-mobility transistor (HEMT) heterostructure grown on a Si (111) substrate were investigated using in situ high-temperature X-ray diffraction (HT-XRD), reciprocal space…