"02/18 IKZ-News: Thomas Schröder appointed as new director of the Leibniz Institute for Crystal Growth"

On February 1st, 2018 Prof. Dr. Thomas Schröder becomes head of the Leibniz Institute for Crystal Growth (IKZ) in Berlin-Adlershof, Germany. Associated with the position of director is the professorship "Crystal Growth" at the Humboldt University of Berlin. Since 2013, Prof. Dr. Günther Tränkle, director of the Ferdinand-Braun-Institutes für Höchstfrequenztechnik, has been acting as temporary director of the institute, which has enabled the IKZ to develop into a leading centre for crystal growth in Europe and worldwide.

Thomas Schröder has held a professorship for semiconductor materials at the Brandenburg University of Technology (BTU) Cottbus-Senftenberg since 2012 and has been head of the Materials Research Department at the IHP GmbH - Innovations for High Performance Microelectronics (IHP) in Frankfurt (Oder) since 2009. With his team he conducts modern materials research in the field of "More than Moore" silicon microelectronics. As a chemist and physicist Thomas Schröder received his PhD in the area of physical chemistry of dielectrics at Humboldt University Berlin after a research study at the Fritz Haber Institute of the Max Planck Society in Berlin.

The Leibniz Institute for Crystal Growth researches the scientific and technological challenges of crystal growth. This ranges from basic research to industry-oriented technology development. The materials developed at the institute form the basis for modern technical applications that are used in microelectronics, opto- and power electronics, photovoltaics, optics, laser technology and sensor technology. In addition, the institute fulfils a supraregional service function that includes the provision of special crystals for research, the characterization of crystalline materials or the development of technologies for research and industry.


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"12/17 IKZ-News: Beta-gallium oxide - A new semiconductor for power electronics"

Microelectronic power devices with efficient switching capabilities make a significant contribution to the development of innovative technologies. At present, components based on silicon carbide (SiC) and gallium nitride (GaN) are mainly used in power electronics. Now, however, the focus of interest is on a new material.


Monoclinic ß-gallium oxide (ß-Ga2O3) is a transparent, semiconducting oxide with promising properties. With a band gap of 4.8 eV, a high theoretically determined field strength of 8 MV/cm and a high performance index ß-Ga2O3 offers a promising perspective in the field of power electronics.

In recent years, IKZ has gained an excellent expertise in growing of ß-Ga2O3 single crystals and layers. The institute has succeeded in developing and patenting a crystal growing technology based on the Czochralski process for ß-Ga2O3 crystals. In principle, crystals can be produced with high crystalline quality using this process.

In summer 2017, a joint research project with the Technische Universität Berlin and the Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Berlin, was launched on this basis. This Project is funded by the Federal Ministry of Education and Research as part of the VIP+ programme. Preliminary investigations have already shown that metal-insulator semiconductor field-effect transistors (MISFETs) based on (100)-oriented ß-Ga2O3 epitaxial layers have very good component properties. This demonstrate the great potential of the semiconductor ß-Ga2O3 for power electronics.

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"11/17 IKZ-News: Thomas Schroeder accepts call as new direktor of IKZ"

Prof. Dr. Thomas Schroeder has accepted the call for professorship „Crystal Growth“ at Humboldt- University zu Berlin. The IKZ thus receives a new director. Mr. Schroeder is expected to assume this position in early 2018.

Currently, Mr. Schroeder is head of the Material Research department at IHP GmbH - Innovations for High Performance Microelectronics in Frankfurt (Oder) and holds a professorship for Semiconductor materials at BTU Cottbus – Senftenberg.

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"10/17 IKZ-News: Dorothee Braun finishes her graduation with distinction"

Dr. Dorothee Braun (Leibniz Institute for Crystal Growth) has passed her doctorate with distinction on October 17, 2017 at the Technical University of Berlin with the topic "Strain-phase relations in lead-free ferroelectric KxNa1-xNbO3 epitaxial films for domain engineering".

In her doctoral thesis, Ms. Braun investigated materials with ferro- and piezoelectric properties, such as those used for electronic applications, e. g. for pressure sensors or ultrasound devices. The materials currently used pose a potential health risk due to their lead content. Therefore, lead-free materials with comparable or novel properties must be found. For this purpose, she investigated in particular thin crystalline potassium-sodium-niobate layers and examined the relationship between the crystalline structure and the ferroelectric order. Dorothee Braun's doctoral thesis laid the foundation for further, targeted research into the structure-property relationship of oxide layers, especially perovskite structures. The experimental and theoretical work was carried out at the working group Ferroelectric Oxide Layers at the IKZ.

She completed her bachelor's and master's degree in physics at the Humboldt University of Berlin, specializing in solid state physics. Ms. Braun will spend two more years at the Leibniz Institute for Crystal Growth in the group Ferroelectric Oxide Layers, working on the production and characterization of lead-free perovskite layers.


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"09/17 IKZ-News: Dr. Kaspars Dadzis received international LIMTECH young scientist award"

Dr. Kaspars Dadzis (Leibniz Institute for Crystal Growth) has received the LIMTECH Young Scientist Award 2017 for his work in the field of model experiments and numerical simulation in crystal growth.

From 2002 to 2007, Mr. Dadzis worked at the University of Latvia, Riga, on the simulation of crystal growth processes using the float zone method before starting to work in industrial crystal growth in 2008 (SolarWorld, Freiberg). He obtained his doctorate in the field of directional solidification of silicon at the TU Bergakademie Freiberg in cooperation with the Fraunhofer institutes IISB and THM. Since 2016, Mr. Dadzis has been conducting research at the Leibniz Institute for Crystal Growth in the Silicon & Germanium workgroup where he has been working on the development of new methods for the growth of crystalline materials.

The prize is awarded annually by the LIMTECH Alliance, a research initiative on liquid metal technology sponsored by the Helmholtz Association of German Research Centres. Dr. Dadzis will give his presentation on the award ceremony on "Model experiments in crystal growth" at a symposium of the alliance on September 19 and 20, 2017 in Dresden. The award is endowed with 2000 €.

Further information about the award and the conference please find here:

International LIMTECH Young Scientist Award

Final LIMTECH Colloquium and International Symposium on Liquid Metal Technologies


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"09/17 IKZ-News: Leibniz Insitute for crystal growth (IKZ) successful at Adlershofer Firmenstaffel 2017"

The 5th Adlershofer Firmenstaffel took place on September 7, 2017 at the former airfield of Johannesthal. In total 163 teams from companies based in Adlershof competed for the best runtime on a total distance of 8.7 km (3 x 2.9 km).

The IKZ was successfully represented by Felix Lange, Natalia Stolyarchuk and Christian Ehlers, who were able to secure a good position in the first half of the overall ranking.


We would like to take this opportunity to thank the organizers of Health Sports Berlin-Brandenburg e. V. (GSBB) for the very successful event.



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"08/17 IKZ-News: Thomas Schroeder received call as new director of IKZ"

With the date of 15th of August 2017 Prof. Dr. Thomas Schroeder has received the call for professorship „Crystal Growth“ at Humboldt-Universität zu Berlin. The professorship is connected to the position of the director of the Leibniz Institute for Crystal Growth.

Currently, Mr. Schroeder is head of the Material Research department at IHP GmbH - Innovations for High Performance Microelectronics in Frankfurt (Oder) and holds a professorship for Semiconductor materials at BTU Cottbus – Senftenberg.



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"04/17 IKZ-News: Kick-off and laser materials meeting on the occasion of the founding of the Center for Laser Materials"

As part of a two-day workshop, the Leibniz-Institut für Kristallzüchtung (IKZ) has invited renowned experts from the scientific community and industry to give them an overview of the research activities of the new Center for Laser Materials – Zentrum für Lasermaterialien (ZLM).

Led by Dr. Christian Kränkel, a competence center for novel laser materials is being installed at the Leibniz-Institut für Kristallzüchtung since March 2017. In cooperation with the Ferdinand-Braun-Institut (FBH) innovative laser materials will be explored, qualified and developed.

The workshop participants came together, to get an idea of stakeholders current competencies, prospective challenges of the novel center and possible industrial applications.
A wide range of lectures of laser research and technology completed the meeting.


Zentrum für Lasermaterialien / Center for Laser Materials
(web presence)
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"03/17 IKZ-News: Founders Award for IKZ-Spin-Off GOLARES"

Excellent Coating – Founders Award for IKZ-Spin-Off GOLARES

At the 24th of March 2017, the GOLARES GmbH has been awarded the  „Gründerpreis der Leibniz-Gemeinschaft“.
The Spin-Off from IKZ provides coating and microstructure by means of plasma technology.
This technology is used to optimate optoelectronic and microelectronic components.  Treating surfaces with gas plasma is a key step for the production of high-tech products.
Since ten years Dr. Michael Arens and Dr. Sebastian Golka are dealing with this technology. They set up GOLARES in June 2016.

"Our method has a remarkably low risk of damaging. Meanwhile, our layers are of excellent quality. Other methods can not achieve this level of quality" explains Sebastian Golka.
This increases efficiency and lifespan of the final products. Also, there are very few providers of plasma-assisted gas phase coatings with special materials as aluminum nitride or titanium nitride.
"We offer services especially for small and medium-sized enterprises which can not afford own facilities for plasma coating" adds Michael Arends. Often only small quantities are needed for research and development.

The start-up was supported by the Bundeswirtschaftsministerium as part of an EXIST start-up scholarship.
With the prize money of € 50,000, the two founders have the opportunity to successfully enter the market and thereby further expand their company concept.

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"02/17 IKZ News: Development of large Gallium(III)oxide single crystals for electronic devices"


An intensive research on bulk growth of β-Ga2O3 by the Czochralski method resulted in development of large single crystals of 2 inch diameter and length up to 4 inch.
High thermal instability at high temperatures of that compound required an application of unique technical solutions to thermodynamically stabilize and make the growth of β-Ga2O3 stable. The provision of this proprietary technology allows for yet further scaling-up of melt grown β-Ga2O3 crystals.
β-Ga2O3 is a transparent semiconducting oxide with a wide energy gap of 4.85 eV, a wide range of possible free electron concentrations between 1016 and 1019 cm-3 and electron mobility up to 150 cm2V-1s-1. Electrically insulating crystals can also be obtained by doping with Mg.
A unique combination of electrical and optical properties make β-Ga2O3 a great candidate for designing devices in different areas of state of the art technology, such as in transparent or high power electronics, optoelectronics and detecting systems.

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IKZ Summer School, October 12 -14, 2016 'Towards Understanding Crystal Growth on an Atomic Scale',  Prof. Elias Vlieg

This year's summer school will take place between October 12 and October 14, 2016. Please find further information here

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"IKZ in the papers: 05/17 - 25 Jahre Forschungsverbund Berlin - schwieriger Neuanfang nach der Wende - an interview with Dr. Günter Wagner"

Quelle: Berliner Zeitung, 17.05.2017
25 Jahre Forschungsverbund Berlin - schwieriger Neuanfang nach der Wende

...So entstand auch das Institut für Kristallzüchtung (IKZ), das zum Forschungsverbund gehört und seinen Sitz in Adlershof hat. „Nach der Evaluierung wurde beschlossen, dass der Bereich Kristallzüchtung eines der Akademie-Institute gute Impulse für die gesamtdeutsche Forschungslandschaft geben würde“, erinnert sich Günter Wagner. Der Kristallograf ist seit 1992 wissenschaftlicher Mitarbeiter am IKZ. Aus diesem speziellen Bereich wurde ein neues, eigenständiges Institut gegründet – mit Wissenschaftlern aus unterschiedlichen Einrichtungen, die sich mit dem Thema Kristallzucht befassten. Heute ist das Institut europaweit führend. Die Kristalle werden beispielsweise für Datenspeicher, Quantentechnologie und Elektronik gebraucht.


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Long night of Sciences 2016! 1.828 visitors came to Leibniz Institute for Crystal Growth

Saturday, June 11, IKZ opened its doors again to the public during the Long Night of Science 2016. This year, 1.828 visitors came by at the institute in Adlershof to get an insight into the facilities and the recent fields of research. At peak times, visitors had the wait 90 mins to get a spot for the highly requested tours.

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Program 'French-German Workshop on Oxide, Dielectric and Laser Crystals

The program for the 'French-German Workshop on Oxide, Dielectric and Laser Crystals' organized by the DGKK-Arbeitskreises Kristalle für Laser und Nichtlineare Optik is online now.

Please find further information on the workshop here

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French-German Workshop on Oxide, Dielectric and Laser Crystals, September 15 - September 16, 2016

The Institut will host the 'French-German Workshop on Oxide, Dielectric and Laser Crystals' later this week (Thursday, September 15 - Friday, September 16). Everybody who is interested in attending the workshop please register This email address is being protected from spambots. You need JavaScript enabled to view it..

Please find more information on the workshop here

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