Welcome to the homepage of Prof. Dr.-Ing. Matthias Bickermann

Melt and flux growth of oxides and fluorides for optical, piezoelectric and laser crystals, and as substrates for novel electronic devices.
Growth and characterization of wide-bandgap semiconductor bulk crystals. These crystals are used as substrate material in semiconductor technology.
Growth and characterization technologies, correlation between preparation and properties of bulk single crystals in a general sense.

(Overview on granted projects)
Former member of the material science review board 2020-2024

German Association for Crystal Growth - Member since 2010
Co-chair of the focus group "Crystals for photonic applications" since 2023

Co-founder and Associate Member of Berlin Research 50

9th European Conference on Crystal Growth
(ECCG-9)
5th European School on Crystal Growth
(ESCG-5)
Berlin, Summer 2027
Co-Organizer

IKZ is member of the Leibniz association

Incorporation of Divalent Transition-Metal Ions in Bulk In₂O₃ Single Crystals Grown From the Melt and Their Impact on Optical and Electrical Properties J. Appl. Phys. 138 (2025) 025104
Prediction of Impurity Concentrations by Absorption Spectra in AlN Single Crystals Using Random Forest Regression CrystEngComm 27 (2025) 184-190
Bulk Single Crystals and Physical Properties of Rutile-GeO₂ for High Power Electronics and DUV Optoelectronics Phys. Status Solidi B 25 (2025) 2400326
Solid-Solution Limits and Thorough Characterization of Bulk β-(Al_xGa_1-x)₂O₃ Single Crystals Grown by the Czochralski Method Adv. Mater. Interfaces 12 (2025) 2400122
Thermal Conductivity in Solid Solutions of Lithium Niobate Tantalate Single Crystals from 300K up to 1300K J. Alloys Compounds 1008 (2024) 176549
Evaluation and Thermodynamic Optimization of Phase Diagram of Lithium Niobate Tantalate Solid Solutions J. Mater. Sci. 59 (2024) 12305-12316
Efficient Diameter Enlargement of Bulk AlN Single Crystals with High Structural Quality Appl. Phys. Express 16 (2023) 075502
Fanout Periodic Poling of BaMgF₄ Crystals Opt. Mater. Express 13 [8] (2023) 2158-2164

Growth of Bulk Oxide Crystals for Next-Generation Oxide Semiconductors
Presentation at the 14. German-French Workshop on Oxide, Dielectric, and Laser Crystals (WODIL 2025)
in Ettlingen on Sep 24–25, 2025
IKZ - Modern Crystal Science & Technology in Times of Geopolitical Change
Presentation at the Seminar of Prof. Daniel Vizman, Fakulty of Physics at Western University
in Timisoara, Romania on Jul 23–24, 2025
AlN and Ga₂O₃ Substrate Solutions for Next Generation Efficient Power Electronics Devices
Presentation at the Workshop on High Voltage Power Components For Defence
in ISL Saint-Louis, France on Jun 11, 2025
Crystals and Substrates for Next-Generation Oxide Semiconductor Devices
Presentation at the Annual conference of the DGKK (DKT 2025)
Frankfurt on Mar 5-7, 2025

9. European Conference on Crystal Growth (ECCG-9),
Potsdam, Jul 25–29, 2027
(Conference Co-Chair and Co-Organizer)
International Workshop on Nitride Semiconductors 2026 (IWN 2026),
Kumamoto, Japan, Nov 8–13, 2026
(Member of the Program Committee)
9. International Workshop on Crystal Growth Technology (IWCGT-9),
Berlin, Jun 8–11, 2026
(Conference Chair and Chief Organizer)
Annual conference of the DGKK (DKT 2026),
Karlsruhe, Mar 4–6, 2026
(Member of the Program Committee)
7. International Symposium on the Growth of Nitrides (ISGN-8),
Tainan, Taiwan, Nov 9–12, 2025
(Member of the Program Committee)