Dr. Engin Karabudak

Research Interests: Physical Chemistry of Semiconductors, Artificial Photosynthesis

Dr. Engin Karabudak

Current Research:

Since July 2011, I am developing my own research line in the direction of Artificial Photosynthesis (Solar Fuels) with “Bisolar Cells” Grant (983.000 €) Grant idea about artificial photosynthesis is invented, developed by myself. I have initiated a network for the grant (Prof. Gardeniers from University of Twente, Prof. Joost Reek and Prof. Brouwer from University of Amsterdam). I wrote the Twente University part of the grant. 1/3 of the money will be received by the University of Twente.

Publications: International (refereed) Journals:

Publications at Bilkent University Chemistry Department, Ankara, Turkey:

1.(Impact Factor: 1.849) (Cited 5 times) “XPS analysis with pulsed voltage stimuli”, Karabudak E, Demirok UK, Suzer S., Surface Science, Volume: 600, Issue: 2, Pages L12-L14, Jan 2006

Publications at California Institute of Technology , Pasadena, USA:

2. A new superprotonic material CsxRb(1-x)H(PO3H) and Cation size effect on superprotonic behavior, Engin Karabudak, Cinar Oncel, Lisa A. Cowan, Sossina Haile (in preparation), Contact: e.karabudak@utwente.nl

Publications at Sabanci University , Istanbul, Turkey:

3. “Avalanche Backflow of Electrons in a Two Dimensional Electron Gas”, E. Karabudak, I. I. Kaya, (submitted), Contact: i.i.kaya@sabanci.edu

Publications at Max Planck Institute of Colloids, Potsdam, Germany:

4.(Impact Factor: 2.443) (Cited 9 times) “Performance of a fast fiber based UV/Vis multiwavelength detector for analytical Ultracentrifugation”, Strauss HM., Karabudak E., Bhattacharyya S., Kretzschmar A., Wohlleben W., Coelfen H. , Colloid and Polymer Science, Volume 286, Issue 2, Pages 121-128, Feb 2008.

5.(Impact Factor: 2.387) (Cited 3 times) “Investigation of β-carotene–gelatin composite particles with a multiwavelength UV/vis detector for the analytical ultracentrifuge”, Engin Karabudak, Wendel Wohlleben and Helmut Coelfen; European Biophysics Journal, Feb 2010, Volume:39, Issue:3, Pages: 397-403

6. (Impact Factor: 2.387) (Cited 4 times) “The Open AUC Project” Helmut Coelfen, Thomas Laue, Wendel Wohlleben, Kristian Schilling, Engin Karabudak, Bradley Langhorst, Emre Brookes, Bruce Dubbs, Dan Zollars, Mattia Rocco, Borries Demeler; European Biophysics journal : Feb 2010, Volume:39, Issue:3, Pages: 347-59

Publications at BASF SE Global Competence Center, Ludwigshafen, Germany:

7.(Impact Factor: 5.476) (Cited 7 times) “Determination of the Surfactant Density on SWCNTs by Analytical Ultracentrifugation”, Claudia Backes, Engin Karabudak, Cordula D. Schmidt, Frank Hauke, Andreas Hirsch and Wendel Wohlleben, Chemistry – A European Journal, Volume 16, Issue 44, pages 13176 – 13184, November 22, 2010

8. (Impact Factor: 3.339) (Cited 2 times) “A Universal Ultracentrifuge Spectrometer Visualizes CNT-Intercalant-Surfactant Complexes”, Engin Karabudak, Claudia Backes, Frank Hauke, Cordula D. Schmidt, Helmut Cölfen, Andreas Hirsch and Wendel Wohlleben, ChemPhysChem, Volume 11, Issue 15, Pages 3224-3227, October 25, 2010

9. “Exchanging surfactants during band sedimentation to fractionate carbon nanotubes by diameter”, Engin Karabudak, Claudia Backes, Frank Hauke, Cordula D. Schmidt, Nicolas, Berhard, Johnathan N. Coleman, Wendel Wohlleben, Andreas Hirsch (submitted to PCCP)

Publications at MESA+ Institute of Nanotechnology, Enschede, The Netherlands:

10.(Impact Factor: 5.874) E. Karabudak, B.L. Mojet, S. Schlautmann, G. Mul, H. Gardeniers, Attenuated Total Reflection-Infrared Nanofluidic Chip with 71 nL Detection Volume for in Situ Spectroscopic Analysis of Chemical Reaction Intermediates, Analytical Chemistry, 84 (2012) 3132-3137.

11. E. Karabudak, S. Schlautmann, H.J.G.E. Gardeniers, G. Mul, “Reaching the Intrinsic Rate of Photochemical Reactions in Nanochannels”, submitted to RSC Advances, (2012)

12.(Impact Factor: 3.57) E. Karabudak, E. Yuce, S. Schlautmann, O. Hansen, G. Mul, H. Gardeniers, On the pathway of photoexcited electrons: probing photon-to-electron and photon-to-phonon conversions in silicon by ATR-IR, Phys. Chem. Chem. Phys.(PCCP), 14 (2012) 10882-10885.

13.(Impact Factor: 5.874) “Disposable ATR-IR Crystals from Silicon Wafer: A Versatile Approach to Surface Infrared Spectroscopy”, Engin Karabudak, Recep Kas, Wojciech Ogieglo, Stefan Schlautmann, Damon Rafieian, Guido Mul, Han (J.G.E.) Gardeniers, Analytical Chemistry Volume: 85   Issue: 1   Pages: 33-38   DOI: 10.1021/ac302299g   Published: JAN 1 2013

Scientific Visits:

14.7 January – 7 February 2013 for one month, California Institute of Technology (CALTECH), Joint Center of Artificial Photosynthesis, (Prof. Nathan S. Lewis).

15.09-13 January 2012: Catalysis for Sustainable Energy Center, Denmark Technical University, invited by Prof. Soren Dahl (head of CASE).

Invited Talks:

16.Invited to give Oral Presentation at Harvard University at Aspuru-Guzik Group, on 13 February 2013, Title: “Novel ATR-IR applications for Semiconductor Solar Fuel Applications”.

17.Invited to give Oral Presentation at MIT (Massachusetts Institute of Technology) at Doyle Group on 7 February 2013, Title: “Novel ATR-IR applications for Semiconductor Solar Fuel Applications”.

18.Invited to give Oral Presentation Sabanci University on 9 January 2013; Title: “Novel ATR-IR applications for Semiconductor Solar Fuel Applications”.

19.Invited to give Oral Presentation Koc University on 9 January 2013; Title: “Novel ATR-IR applications for Semiconductor Solar Fuel Applications”.

20.Invited to give Oral Presentation at CASE (Catalysis for Sustainable Energy) center at Denmark Technical University, Title: "ATR-IR integrated micro-nano fluidic chips: Mechanistic study with nanoliters and first nanofluidic photoreactor", 09.January.2012

21.125th The Svedberg Anniversary; 18th International AUC Conference 13-18 September.2009,

Uppsala University, Sweden; “New Generation of Multiwavelength Analytical Ultracentrifugation” (Invited by Conference committee, Oral presentation)

Conferences/Workshops/Presentations:

22.Gordon Research Conference (GRC) Renewable Energy: Solar Fuels, May 13-18, 2012, Lucca (Barga), Italy, Poster Presentation, Title: “On the pathway of Photoexcited Electrons: Probing Photon to Electron and Photon-to-Phonon conversions in Silcion by ATR-IR.

23.Gordon Research Seminar (GRS): Renewabloe Energy:Solar Fuels, May 12 -13, 2012, Lucca(Barga), Italy. (Poster Presentation)

24.Energy and Materials from The Sun, June 20-23, 2011, Rolduc Abbey, The Netherlands (Poster presentation).

25.Netherlands Catalysis and Chemistry Conference, NCCC, XII, 2011 (Poster Presentation)

26.NIOK Course: Characterization in Catalysis Research, Eindhoven University, 24-26 January 2011

27.NIOK, Catalysis, An Integrated Approach, Schiermonnikoog, 21-26 November 2010

28.Artificial Leaf Workshop, Lorentz Center, Leiden University, 1-5 February 2010

29.Fundamentals of Nanotechnology Workshop, MESA+ Institute of Nanotechnology, University of Twente, January 2010

30.Fundamentals of Nanotechnology Workshop, 2-6 November 2009, Enschede, The Netherlands

31.Analytical Ultracentrifuge 2008 Conference, New Castle, UK (Oral Presentation)

32.Analytical Ultracentrifuge 2007 Conference, Hannover, Germany (Poster presentation)

33.American Physical Society March 2008 meeting, New Orleans, Louisiana, USA; Oral Presentation by Dr. Ismet I. Kaya (Abstract can be found at: http://absimage.aps.org/image/MWS_MAR08-2007-006905.pdf)

Important Workshops and Schools attended:

34.NIOK Course: Characterization in Catalysis Research, Eindoven University, 24-26 January 2011

35.NIOK, Catalysis, An Integrated Approach, Schiermonnikoog, 21-26 November 2010

36.Artificial Leaf Workshop, Lorentz Center, Leiden University, 1-5 February 2010

37.Fundamentals of Nanotechnology Workshop, MESA+ Institute of Nanotechnology, University of Twene, January 2010

Scholarships, Grants and Prizes:

1.October 2010: “Towards Bisolar Cells” Grant (983.000 €) Grant idea about artificial photosynthesis is invented, developed by myself. I have initiated a network for the grant (Prof. Gardeniers from University of Twente, Prof. Joost Reek and Prof. Brouwer from University of Amsterdam). I wrote the Twente University part of the grant. 1/3 of the money will be received by the University of Twente.

2.June 2009: certificate for technology transfer to BASF SE global competence center

3.October 2006 – April 2009: Full Scholarship for PhD from Max Planck Society, Germany

4.2006-2004: Full scholarship in Master of Material Sciences, Sabanci University, Istanbul, Turkey

5.July 2003 -September 2003: Summer Undergraduate Research Fellowship (SURF), , California Institute of Technology (CALTECH), Pasadena, Los Angles, USA

6.July 2002-September 2002: Max Planck Institute Foreign Researcher Scholarship, Germany

7.2002: Motorola Flash Microcontroller Design Contest ParticipantMotorola Flash Microcontroller Design Contest: Selected as representative of Department of Electrical and Electronics and Engineering, Bilkent University, Turkey. Full Development of new instrument called “Automatic Photometric Titration Machine” and presenting it in Motorola Design Contest in Ciragan Palace, 31st March 2002, Istanbul, Turkey., Istanbul, Turkey

8.1998-2004: Full Scholarship from Bilkent University Chemistry Department (Top Chemistry Department in Turkey; accepting only 15 students that are qualified with top marks in National University Exam)

9.1998: National University Exam (Turkey wide): Became 1470th over 1,000,000 students; which corresponds to 0.1 % of all students in Turkey

10.1997: Kocaeli University Mathematic Olympics: Second Degree, Kocaeli, Turkey

11.1995: National High School Exam (Turkey wide) qualified for entering “Golcuk Anatolian High School”, (educated in English), Golcuk, Turkey

Background:

•Postdoc in Si Semiconductor Surface Artificial Photosynthesis/Microfluidics: in the Mesoscale Chemical Systems group, with a “Biosolar Cells” Grant (Title: Photocatalytic Water Splitting in Microfluidic Devices), University of Twente. Since July 2011. (See current employment)

•Postdoc in Semiconductor Photocatalytics: in PCS group, University of Twente, Subject: Evaluation of nano-fluidic devices for photochemistry, November 2010 – July 2011.

•Postdoc in Semiconductor Surface Attenuated Total Reflectance Spectroscopy: in the Mesoscale Chemical Systems group, University of Twente. Subject: Developing wSi-ATR-IR coupled micro-nanofluidic reactors, July 2009 – October 2010.

•Technology transfer to BASF AG: performed transfer of technology to BASF SE global competence center, May-June 2009 Certificate for technology transfer to BASF SE global competence; Technology transfer to BASF AG: performed the transfer of technology to BASF SE global competence center, Ludwigshafen, Germany; I have developed MW-AUC technique which can use thousands of wavelength at a timeand cost only 60.000 € (Commercial Beckman Detection systems costs 500.000€ and which can only be used 3 wavelengths at a time)

•Ph.D. in Semiconductor Nanoparticles/Physical Chemistry: Max Planck Institute of Colloids and Interfaces, Potsdam, Germany, 14/12/2009, Supervised by Prof. Dr. Marcus Antonietti and Dr. habil Helmut Coelfen. Title of thesis: “Development of MWL-AUC/CCD-AUC/SLS-AUC Detectors for Analytical Ultracentrifuge: Study of proteins/nanoparticles/quantum dots/CNTs in solution phase and their interactions”

•M.Sc. in Electron Transport in the Interface of Two Semiconductors/ Sabanci University, Quantum Transport & Nano Electronics Laboratuary, (Assoc. Dr. Ismet I. Kaya), in the subject of Solid State Physics/Material Science:, Istanbul, Turkey, 15/09/2006, Supervised by Assoc. Prof. I.I. Kaya. Thesis Title: “Investigation of negative resistance induced by directional scattering in a two dimensional electron gas”

•B.Sc. in Chemistry/Physical Chemistry: Bilkent University, 15/01/2004, Ankara, Turkey. Supervised by Assoc. Prof. Gershon Borovsky, Thesis Title: “A new type of Direct Methanol Cell”

•Fellowship in Material Science: California Institute of Technology (CALTECH), USA, Summer Undergraduate Research Fellowship (SURF), (First and only chemistry student from Turkey to be awarded with SURF) Summer Research on “Superprotonic phase transition in CsH(PO3H), RbH(PO3H) and CsxRb(1-x) H(PO3H) crystals to be used as fuel cell electrolyte”Supervisor: Prof. Dr. Sossina M. Haile July 2003 - September 2003.

Brief Summary of past research:

The past research have been dedicated to study inorganic semiconductors and development of novel spectroscopy techniques and utilizing them for the purposes of better understanding of physical chemistry of semiconductors.

Firstly, a novel X-ray photoelectron spectroscopy that is called is called “pulsed voltage XPS” is developed to study time resolved properties of semiconductor surfaces.

Secondly, I have studied two dimensional electron transport between two semiconductor interfaces. I have discovered a novel effect called Reverse-Avalanche effect in the field of solid state physics.

Secondly, In particular so-called MW-AUC ( a novel UV/Vis spectroscopy technique) has been evaluated for separating a semiconductor nanoparticles solution by size in atomic resolution and taking UV/Vis spectra of individual fractions. With the help of this method, quantum size effect for CdTe semiconductors has been studied. During the transfer of this technology to BASF, carbon nanotube and ligand interactions were also analyzed utilizing MW-AUC.

Thirdly, during my research in microfluidic group, The problem of scarcity of the online chemical detection techniques that can work with micro- and nano volumes has been encountered. Another problem was that the techniques had not been designed for specific needs of microfluidic research. I developed a novel wafer based Silicon Attenuated Total Reflectance Infrared Spectroscopy (wSi-ATR -IR) is develop to study chemicals near to Si semiconductor surface. The smallest volume infrared study in the literature has been achieved and the first nanofluidic hotoreactor with simultaneous IR analysis has been developed.

While performing research on semiconductor wSi-ATR-IR, a microfluidic approach to photosynthesis has been developed. Utilizing the ‘microfluidic photosynthetic leaf’ recent result about water oxidation inside a microfluidic chip has been achieved. Research on fabricating an artificial leaf is in progress.

Teaching Experinece:

2004- 2006: Teaching assistantship at Sabanci University, Istanbul, Turkey. Lecturing/ problem solving/

General Chemistry (2 semesters, 3 hours a week)

Differential Equations (1 semester, 3 hours a week)

Material Science (1 semester, 3 hours a week)

Skills:

Instrumental Experience:

3 years hands on clean room experience (2 years during the master studies in Turkey, 1 year in MESA+ in Netherlands), experienced in lithography techniques including ebeam lithography, microwire bonding, anodic bonding, sputtering, coating etc…

Well trained in Attenuated Total Reflectance- infrared (ATR-IR), Cryogenic Cryostat down to 1,2 K Kelvin, X-ray photoelectron spectroscopy (XPS), UV-Vis Spectroscopy, Infrared Spectroscopy , Raman Spectroscopy, Impedance Spectroscopy, Powder and single crystal X-ray diffraction (XRD), Thermal Gravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), Ultracentrifugation, Analytical Ultracentrifugation, Cyclic Voltammetry, Nuclear Magnetic Resonance (NMR), Scanning Electron microscopy.

Programming:

Assembly Language: Excellent, Labview: Excellent, Java: Good

Mechanical Design:

Capable of using Autocad, Solid Works programs

Electronical Design:

Capable of digital and microprocessor design (see certificate from Motorola)

Optical Design:

Expert on Ocean optic portable spectrometers and accessories and able to program them efficiently.

Language:

English (Fluent), Turkish (Native), Dutch (Finished Follow up 1 level), German (Basic)

Hobbies:

Political Economy, Offshore sailing, robotics, microelectronics, history, travelling

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