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International Workshop on Nitride Semiconductors 2024 (IWN 2024)
Oahu, Hawaii, USA, Nov 3-8, 2024
Member of the Topical Program Committee Bulk Growth Sessions
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DGKK workshop on "Bulk Semiconductor Crystals"
Conference chair and chief organizer
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8. European Conference on Crystal Growth (ECCG-8)
Warsaw, Poland, Jul 21-25, 2024
Member of the International Advisory Committee
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10. International Conference on Nitride Semiconductors (ICNS-14)
Fukuoka, Japan, Nov 12-17, 2023
Member of the Program Committee
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HU Berlin, Sep 21-22, 2023
Conference chair and chief organizer
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DFG Research Group FOR 5044 Summer School
Head of the Local Organization Comittee
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20. International Conference on Crystal Growth (ICCGE-20)
Naples, Italy, Jul 30-Aug 4, 2022
Member of the Program Committee
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6. International Workshop on UV Materials and Devices 2023 (IWUMD 2023)
Metz, France, June 5-8, 2023
Member of the Program Committee
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Advanced Solid State Lasers Conference of the OSA (ASSL 2022)
Barcelona, Spain, Dec 11-15, 2022
Member of the Materials Program Committee
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International Workshop on Nitride Semiconductors 2022 (IWN 2022)
Berlin, Oct 9-14, 2022
Member of the Program Committee for the symposium on Growth
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19. Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP-19)
online (planned for Yokohama, Japan), Aug 28-Sep 1, 2022
Member of the Steering Committee
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7. European Conference on Crystal Growth (ECCG-7)
Paris, France, Jul 25-27, 2022
Session Chair "Semiconductors"
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Berlin, May 29-Jun 2, 2022
Conference chair and chief organizer
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5. International Workshop on UV Materials and Devices 2022 (IWUMD 2022)
Jeju, Korea, May 23-27, 2022
Member of the Program Committee
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Conference chair and chief organizer
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Advanced Solid State Lasers Conference of the OSA (ASSL 2021)
online (planned for Toronto, Canada), Sep 13-16, 2021
Member of the Materials Program Committee
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Advanced Solid State Lasers Conference of the OSA (ASSL 2020)
online (planned for Quebec, Kanada), Oct 12-16, 2020
Member of the Materials Program Committee
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Conference chair and chief organizer
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Conference chair and chief organizer
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4. International Workshop on UV Materials and Devices 2019 (IWUMD 2019)
St. Petersburg, Russia, Sep 8-13, 2019
Member of the Program Committee
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18. Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP-18)
Berlin, Sep 8-12, 2019
Conference chair and chief organizer (together with Anna Mogilatenko)
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13. International Conference on Nitride Semiconductors (ICNS-13)
Bellevue, Washington, USA, Jul 7-12, 2019
Member of the Program Committee
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Joint annual conference of the
DGKK and the
PTWK (
DKT 2019)
Poznan, Poland, Mar 17-21, 2019
Organizer of the session "Dielectrics and intermetallics" (with Andreas Erb)
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International Workshop on Nitride Semiconductors 2018 (IWN 2018)
Kanazawa, Japan, Nov 11-16, 2018
Member of the Program Committee, of the Topical Committee for Session A (Bulk Growth), and Session Chair
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Warsaw, Poland, Sep 17-20, 2018
Conference chair and chief organizer Symposium P: Epitaxial Oxide Films for Electronic Applications
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2. International Workshop on UV Materials and Devices 2017 (IWUMD 2017)
Fukuoka, Japan, Nov 14-18, 2017
Member of the Program Committee
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Potsdam, Jul 2-6, 2017
Conference chair and chief organizer
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International Workshop on Nitride Semiconductors 2016 (IWN 2016)
Orlando, Florida, USA, Oct 2-7, 2016
Member of the Program Committee, of the Topical Committee for Session A (Bulk Growth), and Session Chair
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Warsaw, Poland, Sep 19-22, 2016
Conference chair and chief organizer Symposium F: AlN and AlGaN Materials and Devices
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Conference chair and chief organizer
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Conference chair and chief organizer
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18. International Conference on Crystal Growth and Epitaxy (ICCGE-18)
Nagoya, Japan, Aug 7-12, 2016
Member of the Program Committee
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6. International Symposium on the Growth of Nitrides (ISGN-6)
Hamamatsu, Japan, Nov 8-12, 2015
Member of the Program Committee and Session chair
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9. International Workshop on Bulk Nitride Semiconductors (IWBNS-IX)
Oak Valley, Wonju, South Korea, Nov 2-6, 2015
Member of the Program Committee and Session chair
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Conference chair and chief organizer
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11th International Conference on Ceramic Materials and Components for Energy and Environmental Applications (CMCEE-11)
Vancouver, Canada, Jun 14-19, 2015
Co-Organisator of Session FS5: Crystalline materials and devices for electro-optical and biomedical applications
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Berlin, June 15-19, 2014
Conference chair and chief organizer
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International Workshop on Nitride Semiconductors 2012 (IWN 2012)
Sapporo, Japan, Oct 15-19, 2012
Member of the Program Committee and Session chair
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DPG Spring Meeting on Condensed Matter 2012 (
DPG 2012)
Co-Organisator of Session HL 46: AlGaN materials for ultraviolet light emitters
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30. Annual Conference of the
DGKK (
DKT 2000)
University of Erlangen, Mar 20-22, 2000
Member of the Local Organization Committee (Chair: Prof. G. Müller)
