Nicolas Woehrl

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Nicolas Wöhrl 2019

Nicolas Wöhrl (born April 25, 1974 in Recklinghausen ) is a German physicist , science communicator , podcaster and science slammer .

Life

Nicolas Wöhrl was born in Recklinghausen as the son of the geophysicist Thomas Wöhrl and the civil servant Magdalene Wöhrl. He attended elementary school, secondary school in Gelsenkirchen and, until June 1993, the Schalke Gymnasium Gelsenkirchen . After doing community service, he studied physics at the University of Duisburg-Essen . His thesis for a graduate physics engineer from September 1999 was entitled "Improving the biocompatibility of stents through carbon-based layers ". He completed a postgraduate degree in physics in May 2003 with the thesis "Generation of hard carbon layers with the LARGE plasma source". In April 2010 he received the academic degree of Dr. with his doctoral thesis “Synthesis and Characterization of Nanocrystalline Diamond Films”. rer. nat.

From July 2003 to April 2007 Wöhrl worked as a research assistant at Volker Buck in technical physics. He worked on the subject of "Deposition and characterization of nanocrystalline diamond layers", carried out physical internships for doctors and supervised graduate students. From May 2007 to October 2009 Nicolas Wöhrl worked at iplas GmbH Troisdorf as a senior scientist in the research and development department on the process development for plasma CVD , the deposition of homoepitaxially grown carbon layers and the construction of a production line. From November 2009 to February 2013 Wöhrl worked as a research assistant with Volker Buck at the Center for Nanointegration Duisburg-Essen at the University of Duisburg-Essen. From March 2013 to January 2016, Wöhrl was a research associate in inorganic chemistry at the University of Duisburg-Essen with Stephan Schulz. Nicolas Wöhrl has been working for Axel Lorke in experimental physics at the University of Duisburg-Essen since February 2016.

Since 2013, Nicolas Wöhrl has been the spokesman for the Young Researcher Network (YRN) at the University of Duisburg-Essen.

In his spare time, Nicolas Wöhrl plays the drums in the progressive metal band "Path Zero" (previously "Requiem"), climbs and takes part in running and triathlon competitions. Nicolas Wöhrl is married and lives in Gelsenkirchen with his wife and two children.

Area of ​​Expertise

Nicolas Wöhrl's area of ​​expertise is the synthesis and characterization of (nano) structured carbon layers. His work at the University of Duisburg-Essen is integrated into the “Center for Nanointegration University-Duisburg” (CENIDE) - the activities in the field of nanotechnology at the University of Duisburg-Essen. These range from crystalline structures ( diamond single crystals, nanocrystalline diamond coatings ) on low-dimensional structures ( graphs , carbon nano Walls) to amorphous carbon layers (aC, aC: H) . Both PVD and plasma-assisted CVD processes are used for the synthesis of these structures . The system concepts used include microwave , RF and various arc processes . With these facilities and methods, Nicolas Wöhrl was able to make important contributions to the development and modeling of synthesis processes for these materials. Among other things, he realized one of the first graphs to be deposited using the direct plasma method in Germany.

In his doctoral thesis he dealt with the production of nanocrystalline and ultra-nanocrystalline diamond layers with specific properties and showed the role that the amorphous carbon matrix in these layers has on many material properties.

In the area of ​​monocrystalline diamond layers, Wöhrl is researching the generation and properties of spin centers near the surface in high-purity diamond. He examines the influence of the structure and termination of the surface on the underlying spin centers and their properties.

In 2016 he worked on the miniaturization of conventional fuel cell concepts by maximizing the electrochemically active surface through the use of carbon nanowalls . Through the use of innovative plasma processes and catalyst or electrolyte materials, the electrodes of the micro fuel cells were specifically improved in their electrochemical performance.

In addition to material synthesis, surface modifications using plasma processes and the characterization of these plasmas using various processes such as optical emission spectroscopy , mass spectroscopy and plasma probes are part of his field of activity.

Science communication and podcast "Methodically incorrect!"

In addition to his work at the university, Nicolas Wöhrl works in various areas of science communication . He appears as an expert in television formats, for example " 1, 2 or 3 ", Galileo , on WDR radio or on the live stream channel of Rocket Beans TV .

On various occasions he has presented his research to the interested public both for adults and for children through popular science lectures, science slams and in experimental shows.

Together with his colleague Reinhard Remfort , Nicolas Wöhrl has been running the podcast “ Methodically incorrect! ". This achieved around 70,000 downloads per episode in January 2017. The podcast regularly occupies top positions in the German iTunes podcast charts. In the two-week podcast, the two physicists present scientific publications and experiments, technical gadgets made in China (“China gadgets ”), beers and music with mostly scientific relevance and tell of their experiences as scientists since the previous episode.

The podcast has made some stage appearances since 2014, including as an evening event as part of the Chaos Communication Congress .

Nicolas Wöhrl is co-founder of the curated directory of knowledge podcasts Wissenschaftspodcasts.de, which aims to strengthen the potential of podcasts for imparting knowledge.

Works

  • Nicolas Wöhrl, Volker Buck: Influence of Hydrogen on the Residual Stress in Nanocrystalline Diamond films . In: Diamond Related Materials . tape 16 , no. 748 , 2007.
  • Volker Buck, Nicolas Wöhrl: Tailoring the Matrix in Ultra-Nanocrystalline Diamond Films . In: Jpn. J. Appl. Phys. tape 47 , no. 8208 , 2008.
  • Nicolas Wöhrl, Tina Hirte, Oliver Posth, Volker Buck: Investigation of the coefficient of thermal expansion in nanocrystalline diamond films . In: Diamond Related Materials . tape 18 , no. 224 , 2009.
  • Rishi Sharma, Nicolas Wöhrl, PK Barhai, Volker Buck: Nucleation density enhancement for Nanocrystalline diamond films . In: Journal of Optoelectronics and Advanced Materials . tape 12 , no. 1915 , 2010.
  • Nicolas Wöhrl: Synthesis and Characterization of Nanocrystalline Diamond Films . Dissertation. 2010 (English, duepublico.uni-duisburg-essen.de [PDF; 49.3 MB ]).
  • Nicolas Wöhrl, Volker Buck: The importance of the matrix in nanocrystalline diamond layers . In: Richard Suchentrunk (ed.): Yearbook surface technology . tape 66 . Eugen G. Leuze Verlag, Bad Saulgau 2010, p. 196-205 .
  • Nicolas Woehrl, Volker Buck: Ultrananocrystalline Diamond as Material for Surface Acoustic Wave Devices . In: Marco G. Beghi (Ed.): Acoustic Waves - From Microdevices to Helioseismology . INTECH Open Access Publisher, Rijeka 2011, ISBN 978-953-307-572-3 .
  • Nicolas Wöhrl, Volker Buck: The importance of the matrix in nanocrystalline diamond layers . In: Electroplating . tape 102 , no. 12 , 2011, ISSN  0016-4232 , p. 2748-2757 .
  • Nicolas Wöhrl, Stephan Schulz, Volker Buck: Against (conventional) electricity - non-classic thermoelectrics with non-classic processes . In: UNIKATE NanoEnergie - material development for a sustainable energy supply . No. 43 . University of Duisburg-Essen / Wissenschaftsverlag, Essen 2013.
  • Nicolas Wöhrl, Reinhard Remfort, Volker Buck: Production and application of different carbon-based layers - from graphene to diamond . In: Electroplating . tape 134 , no. 8 . Eugen G. Leuze Verlag, Bad Saulgau 2014, p. 1750-1756 .
  • Anna Weber, Reinhard Remfort, Nicolas Woehrl, Wilfried Assenmacher: Chemical vapor deposition of Si / SiC nano-multilayer thin films . In: Thin Solid Films . tape 593 . ScienceDirect, 2015, ISSN  0040-6090 , p. 44-52 .
  • Nicolas Wöhrl, Volker Buck, Ulrich Köhler, Dieter Suter: Color centers in crystal . In: UNIKATE, Materials Chain . No. 48 . University of Duisburg-Essen / Wissenschaftsverlag, Essen 2016.
  • Felix Büsching, Nuria Cerdá-Esteban, Tobias Glufke, Helga Hofmann-Sieber, Sebastian Huncke, Kai Kühne, André Lampe, Lydia Möcklinghoff, Reinhard Remford, Timo Sieber, Nicolas Wöhrl: A Science Slam Book . Ed .: André Lampe. Lektora, Paderborn 2017, ISBN 978-3-95461-095-2 .
  • Steven Gottlieb, Nicolas Wöhrl, Volker Buck: Conductive Thin Film CVD: Graphene . In: Monica Powell (Ed.): Chemical Vapor Deposition (CVD): Types, Uses and Selected Research . nova science publishing, 2017, ISBN 978-1-5361-0893-4 .

Web links

Commons : Nicolas Wöhrl  - Collection of images, videos and audio files

Individual evidence

  1. ↑ Hoaxilla portrait # 20 - 'Nicolas Wöhrl'. In: Hoaxilla . May 16, 2015, accessed December 29, 2016 .
  2. ↑ Dr. Nicolas Woehrl. In: Center for Nanointegration Duisburg-Essen. Retrieved December 29, 2016 .
  3. ↑ Elena Zay: Duisburg physicists research with diamonds from the microwave. In: DerWesten . September 18, 2013, accessed January 24, 2017 .
  4. ^ Schulz Group. Former Members. In: uni-due.de. Retrieved January 24, 2017 .
  5. ^ AG Lorke: Employees. In: uni-due.de. Retrieved January 24, 2017 .
  6. ↑ Young Researcher Network (YRN) at the Center for Nano Integration at the University of Duisburg-Essen. Retrieved January 26, 2017 (English).
  7. ↑ eMinor: Path Zero | Metal from Gelsenkirchen, NW, DE. In: ReverbNation. Retrieved December 29, 2016 (American English).
  8. ↑ Minkorrekt, episode 97 "Yeast, you bum!" Retrieved October 26, 2019 (German).
  9. ↑ Generation and investigation of near-surface spin centers in ultra-pure diamond. In: Mercator Research Center Ruhr. Retrieved January 26, 2017 .
  10. ↑ D. Oing, M. Geller, A. Lorke, N. Wöhrl: Tunable carrier density and high mobility of two-dimensional hole gases on diamond: The role of oxygen adsorption and surface roughness . In: Diamond and Related Materials . tape 97 , August 1, 2019, ISSN  0925-9635 , p. 107450 , doi : 10.1016 / j.diamond.2019.107450 ( sciencedirect.com [accessed October 26, 2019]).
  11. ↑ 1, 2 or 3. Coal Koks & Co. November 19, 2017, accessed on August 18, 2018 .
  12. ↑ Galileo. Diamond experiment . In: www.prosieben.de . October 14, 2013 ( prosieben.de [accessed January 26, 2017]).
  13. ↑ Children's University gets to the bottom of mysteries in the Phenomenta on April 7th. In: come-on.de. March 26, 2013. Retrieved January 26, 2017 .
  14. ^ Bohn Jour # 50. Methodologically Incorrect Podcast & Mate Knights. 13/01/2016. Rocket Beans TV, January 13, 2016, accessed January 26, 2017 .
  15. ^ Nicolas Wöhrl - Science Slam 2012 - West German final. In: Video Dailymotion. August 11, 2015, accessed January 26, 2017 .
  16. ↑ M4A RSS feed of the podcast Methodologically incorrect. In: minkorrekt.de. Retrieved January 26, 2017 .
  17. ↑ Susanne Kasper: Nicolas Wöhrl and Reinhard Remfort from Methodisch Inkorrekt. In: literaturschock.de. June 29, 2015. Retrieved January 26, 2017 .
  18. ↑ Lukas Grasberger: The sound makes the science. In: MERTON online magazine of the Stifterverband. August 18, 2016, accessed January 26, 2017 .
  19. ↑ 'incorrect Methodically' podcast 'German iTunes Chart Performance - Nicolas Wöhrl and Reinhard Remfort. In: iTunesCharts.net. Retrieved January 26, 2017 (English).
  20. ↑ Methodologically incorrect experiments. (No longer available online.) In: minkorrekt.pajowu.de. Archived from the original on December 29, 2016 ; accessed on December 29, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / minkorrekt.pajowu.de
  21. ↑ Mink-correct (music) videos. In: minmusik.stresskuh.de. Retrieved December 29, 2016 .
  22. ↑ The broadcast center: Methodologically incorrect - episode 41 “The wrong 42”. January 1, 2015, accessed January 26, 2017 .
  23. ↑ Nicolas Wöhrl, Reinhard Remfort: Methodologically incorrect! The science gala from 32C3. December 30, 2015, accessed January 26, 2017 .
  24. ↑ Nicolas Wöhrl, Reinhard Remfort: Methodologically incorrect! The science gala from 33C3. December 30, 2016, accessed January 26, 2017 .
  25. ↑ Tim Pritlove: Methodically Incorrect - Live at Logbuch: Netzpolitik 200 # lnp200. November 14, 2016, accessed January 26, 2017 .
  26. ↑ CCC: Methodologically incorrect! Retrieved October 28, 2018 .
  27. ↑ Science Podcasts . Retrieved January 26, 2017 .
personal data
SURNAME Woehrl, Nicolas
BRIEF DESCRIPTION German physicist, science communicator, podcaster and science slammer
DATE OF BIRTH April 25, 1974
PLACE OF BIRTH Recklinghausen