Results 41 to 50 of about 717 (187)

Vertical Bridgman growth of sapphire-Seed crystal shapes and seeding characteristics

open access: yes, 2014
The growth of sapphire by the traditional vertical Bridgman (VB) method was studied by using various shapes of seed crystals and tungsten (W) crucibles shaped to match the seeds. Approximately 2-in.
Osada, J   +17 more
core   +1 more source

High compositional homogeneity of CdTexSe1−x crystals grown by the Bridgman method

open access: yesAPL Materials, 2015
We obtained high-quality CdTexSe1−x (CdTeSe) crystals from ingots grown by the vertical Bridgman technique. The compositional uniformity of the ingots was evaluated by X-ray fluorescence at BNL’s National Synchrotron Light Source X27A beam line.
U. N. Roy   +10 more
doaj   +1 more source

Vertical Bridgman Growth of GaAs

open access: yes, 1988
We have developed a process to grow both undoped, semi-insulating (SI) and silicon-doped, semiconducting (SC) GaAs using a vertical Bridgman method. The technique combines advantages of both liquid encapsulated Czochralski (LEC) and horizontal Bridgman ...
R. E. Kremer   +4 more
core   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Co‐Firing Slow Solidification Process for Growing Indium‐Doped Cs3Cu2I5 Single Crystals With Record‐Breaking X‐Ray Detection Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel brand‐new co‐firing slow solidification process has been used to prepare Cs3Cu2I5: In single crystals (SCs), which demonstrate record‐breaking X‐ray detection performance. The regular‐shaped Cs3Cu2I5: In wafer obtains a high light yield (74 368 Ph MeV−1), which is the highest related to indium‐doped Cu‐based perovskites.
Rui Liu   +6 more
wiley   +1 more source

Characteristics of Pb2+ doped CsI matriz under gamma and neutron excitations

open access: yesBrazilian Journal of Radiation Sciences, 2019
In recent years, there has been an increasing interest in finding new fast scintillating material or improve the characteristics of known scintillators for the demand of high energy physics, industrial and nuclear medical applications. Ions divalent lead
Maria da Conceição Costa Pereira   +5 more
doaj   +1 more source

Boron Oxide Encapsulated Vertical Bridgman Grown CdZnTe Crystals as X-ray Detector Material

open access: yes, 2008
In this work, the growth of CdZnTe 2-inches crystals by the Boron Oxide Vertical Bridgman Technique is reported. A thin boron oxide layer fully encapsulates the growing crystals, thus preventing a direct crystal-crucible ...
R. Mosca   +29 more
core   +1 more source

An induction heating system for in situ X‐ray diffraction imaging: design, simulation and application to dislocation dynamics in semiconductors

open access: yesJournal of Synchrotron Radiation, EarlyView.
This work presents a compact induction heating system for time‐resolved in situ X‐ray diffraction imaging. The system enables contact‐free volumetric heating up to approximately 1600°C and provides flexible operation in different operating modes. Its performance is demonstrated through representative diffraction imaging experiments.We present a compact
Merve P. Kabukcuoglu   +6 more
wiley   +1 more source

Growth and Characterization of CZT Crystals by the Vertical Bridgman Method for X-ray Detector Applications

open access: yes, 2011
CdZnTe crystals were grown by the vertical Bridgman method in closed quartz ampoules. The crystalline quality and the impurity content of these crystals were studied. Several X-ray detectors were cut out of these crystals.
R. Mosca   +23 more
core   +1 more source

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