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Si–Ge–Sn alloys: From growth to applications
Publication date: Available online 18 January 2016 Source:Progress in Crystal Growth and Characterization of Materials Author(s): S. Wirths, D. Buca, S. Mantl In this review article, we address key material parameters as well as the fabrication and application of crystalline GeSn binary and SiGeSn ternary alloys. Here, the transition from an indirect to a fundamental direct bandgap material will be discussed. The main emphasis, however, is put on the Si–Ge–Sn epitaxy. The low solid solubility of α-Sn in Ge and Si of below 1 at.% along with the large lattice mismatch between α-Sn (6.489 Å) and Ge (5.646...
Source: Progress in Crystal Growth and Characterization of Materials - February 1, 2016 Category: Chemistry Source Type: research

A Jewel in the Crown: A History of Crystal Growth Research at the RRE Radar Research Establishment/RSRE Royal Signals and Radar Establishment, Malvern, UK, Donald T. J. Hurle, Keith G. Barraclough, Aspect Design (2014). 126 p., ISBN: 978-1-908832-66-5
Publication date: Available online 14 November 2015 Source:Progress in Crystal Growth and Characterization of Materials Author(s): H. Hardtdegen (Source: Progress in Crystal Growth and Characterization of Materials)
Source: Progress in Crystal Growth and Characterization of Materials - November 17, 2015 Category: Chemistry Source Type: research

Modern chemical synthesis methods towards low-dimensional phase change structures in the Ge–Sb–Te material system
This report centers on different modern chemical synthesis methods suitable for production with which low-dimensional crystalline structures are attainable in the Ge–Sb–Te material system. The general characteristics of the methods are described first. The special challenges are discussed for the Ge–Sb–Te material system. Growth optimization is studied, and the resulting nanostructures are presented. At last a comparison of the methods is given with respect to research scale vapor transport approach on the one hand and the potential described for future application in technology on the other hand. (Source: Progress...
Source: Progress in Crystal Growth and Characterization of Materials - November 17, 2015 Category: Chemistry Source Type: research

Metastable cubic zinc-blende III/V semiconductors: Growth and structural characteristics
Publication date: Available online 14 November 2015 Source:Progress in Crystal Growth and Characterization of Materials Author(s): Andreas Beyer, Wolfgang Stolz, Kerstin Volz III/V semiconductors with cubic zinc-blende crystal structure, for example GaAs, GaP or InP, become metastable if atoms with significantly smaller or larger covalent radius than the matrix atoms are alloyed. Examples are the incorporation of Boron, Nitrogen and Bismuth in the above-mentioned materials. The resulting multinary compound semiconductors, like for example (Ga,In)(N,As), Ga(N,As,P) and Ga(As,Bi), are extremely interesting for seve...
Source: Progress in Crystal Growth and Characterization of Materials - November 17, 2015 Category: Chemistry Source Type: research

Protein crystallization in a magnetic field
Publication date: March 2015 Source:Progress in Crystal Growth and Characterization of Materials, Volume 61, Issue 1 Author(s): Da-Chuan Yin The rapid advance in superconducting magnet technology enables more and more applications for the use of high magnetic fields in scientific researches and industrial manufacturing. These applications include material processing, separation, chemical reaction, nuclear fusion, high energy physics, and many more. Generally, a superconducting magnet provides both homogeneous and inhomogeneous magnetic fields simultaneously, and both can affect the samples in the field so that the mag...
Source: Progress in Crystal Growth and Characterization of Materials - May 12, 2015 Category: Chemistry Source Type: research

Manufacturing and characterization of porous titanium components
Publication date: September–December 2014 Source:Progress in Crystal Growth and Characterization of Materials, Volume 60, Issues 3–4 Author(s): Florencia Edith Wiria , Saeed Maleksaeedi , Zeming He A powder-bed 3D printer (3DP) is investigated to fabricate porous titanium components. The titanium material was 3D printed and subsequently post-processed by thermal debinding and sintering. Characterization work was carried out to investigate the effects of sintering temperature on the internal porosity profile and shrinkage of 3D printed titanium components, the effects of different binder content on the overall sh...
Source: Progress in Crystal Growth and Characterization of Materials - December 18, 2014 Category: Chemistry Source Type: research

Study of optical and conducting properties of FeCl3 doped PVA polymers
Publication date: September–December 2014 Source:Progress in Crystal Growth and Characterization of Materials, Volume 60, Issues 3–4 Author(s): G. Thejas Urs , Radhika V. Hurkadli , R.V. Basavaraj , M. Niranjana , A. Manjunath , R. Somashekar In the present work, PVA and various concentrations of FeCl3 doped PVA polymer were prepared and optical studies like IR and UV/Visible analysis were carried out on them in solution form also the cast films were examined for their conductance. The variation of optical band gap of PVA polymer with the addition of Fe3+ transition metal ion has been determined by the Tauc p...
Source: Progress in Crystal Growth and Characterization of Materials - December 18, 2014 Category: Chemistry Source Type: research

Magnetic nanocrystals for biomedical applications
Publication date: September–December 2014 Source:Progress in Crystal Growth and Characterization of Materials, Volume 60, Issues 3–4 Author(s): Sabino Veintemillas-Verdaguer , Marzia Marciello , Maria del Puerto Morales , Carlos J. Serna , Manuel Andrés-Vergés (Source: Progress in Crystal Growth and Characterization of Materials)
Source: Progress in Crystal Growth and Characterization of Materials - December 18, 2014 Category: Chemistry Source Type: research

Electrophoretic deposition of hydroxyapatite coatings on AZ31 magnesium substrate for biodegradable implant applications
Publication date: September–December 2014 Source:Progress in Crystal Growth and Characterization of Materials, Volume 60, Issues 3–4 Author(s): S. Kaabi Falahieh Asl , S. Nemeth , M.J. Tan (Source: Progress in Crystal Growth and Characterization of Materials)
Source: Progress in Crystal Growth and Characterization of Materials - December 18, 2014 Category: Chemistry Source Type: research

Surface properties of biomimetic nanocrystalline apatites; applications in biomaterials
Publication date: September–December 2014 Source:Progress in Crystal Growth and Characterization of Materials, Volume 60, Issues 3–4 Author(s): Christian Rey , Christèle Combes , Christophe Drouet , Sophie Cazalbou , David Grossin , Fabien Brouillet , Stéphanie Sarda (Source: Progress in Crystal Growth and Characterization of Materials)
Source: Progress in Crystal Growth and Characterization of Materials - December 18, 2014 Category: Chemistry Source Type: research

Role of transmission electron microscopy in the semiconductor industry for process development and failure analysis
Publication date: September–December 2009 Source:Progress in Crystal Growth and Characterization of Materials, Volume 55, Issues 3–4 Author(s): Raghaw S. Rai , Swaminathan Subramanian Transmission electron microscope (TEM) based techniques offer superior spatial resolution and highly sensitive elemental analysis capabilities that can be exploited for metrology and materials characterization of sub-nanometer sized device features in advanced semiconductor technologies. TEM based techniques are suited for evaluating interfacial details, dimensions of device structures, and defects or flaws that arise during the fab...
Source: Progress in Crystal Growth and Characterization of Materials - October 12, 2014 Category: Chemistry Source Type: research

Ion conducting phosphate glassy materials
We present an overview on silver based fast ion conducting phosphate glasses. Silver phosphate glasses containing chlorides of some metals viz; Li, Na, Mg, Pb and Cu [Ag2O–P2O5–xMCl y , where x =0, 1, 5, 10 and 15wt% and y =1 when M=Li or Na and y =2 when M=Mg, Pb or Cu] have been synthesized by melt quenching technique. Studies on these glassy materials characterized by X-ray diffraction, Fourier transform infrared spectroscopy, differential scanning calorimetric techniques and ion transport measurements are presented. The FT-IR studies support the formation of P–O–M linkages. The values of glass transition temper...
Source: Progress in Crystal Growth and Characterization of Materials - October 12, 2014 Category: Chemistry Source Type: research

Modelling the dynamics and control design for Czochralski, Liquid Encapsulated Czochralski and Floating Zone processes
Publication date: March–June 2010 Source:Progress in Crystal Growth and Characterization of Materials, Volume 56, Issues 1–2 Author(s): Gennadii Satunkin The need for high quality crystals constantly rise. It is especially obvious in connection with the evolution of electronics and optoelectronics. At the present time all the basic methods for crystal growing are known. So the question arises – what further developments are needed to create further advances? Without doubt first of all it is necessary to speak about perfecting crystal growing equipment. Perfecting modern equipment will enhance and accommodate the...
Source: Progress in Crystal Growth and Characterization of Materials - October 12, 2014 Category: Chemistry Source Type: research

Germanium: Epitaxy and its applications
Publication date: September–December 2010 Source:Progress in Crystal Growth and Characterization of Materials, Volume 56, Issues 3–4 Author(s): Matteo Bosi , Giovanni Attolini This paper reviews the most important properties of germanium, gives an insight into the newer techniques and technology for the growth of epitaxial Ge thin layers and focuses on some applications of this material, with a special emphasis on recent achievements in electronics and photovoltaics. We will highlight the recent development of Ge research and will give an account of the most important Ge applications that emerged in the last two ...
Source: Progress in Crystal Growth and Characterization of Materials - October 12, 2014 Category: Chemistry Source Type: research

Gas bubbles in shaped sapphire
Publication date: September–December 2010 Source:Progress in Crystal Growth and Characterization of Materials, Volume 56, Issues 3–4 Author(s): O.M. Bunoiu , Th. Duffar , I. Nicoara Shaped sapphire single crystals almost always contain a typical defect: small bubbles also known as “micro-voids”. The goal of this paper is to review the existing literature and give a survey of our recent work on this specific defect. As a conclusion to our review we propose a mechanism for bubble formation and its occurrence and distribution in shaped sapphire. The bubbles contain CO which originates as a result of complex rea...
Source: Progress in Crystal Growth and Characterization of Materials - October 12, 2014 Category: Chemistry Source Type: research