Chemistry is my passion. It all started when I dissolved a piece of copper tubing in acetic essence in my mother´s kitchen. Guess what, she was not amused but the resulting deep green sparkling crystals were worth it. Times have changed, today my ideas are first studied by my theoretician colleagues who use "in silico" quantum chemical methods and molecular dynamic simulations. The next step is the molecular synthesis which is carried out by preparative chemists like myself and their lab teams. Finally, our Physics and Application department tests the materials in an OLED device for their ability to transform electricity into light. Working on complex topics in a highly competitive field as a member of a focused team with diverse expertise is a challenging experience. Together we struggle for perfection driven by those rare moments when OLED mysteries get unravelled. For me understanding and learning bit by bit and driving things ahead along the lines of our thoughts and hypothesis is the biggest fulfillment. I cannot anticipate when an interesting thought comes to my mind. Most often it´s not at work but while doing something different like cooking, hiking or climbing. Yes, I know, in the end it´s all about making money. But the nice thing for me at Merck KGaA, Darmstadt, Germany is the freedom to try out new things, many of which don’t work out in the end. I like the positive failure culture which in the long run fosters a deeper understanding of things and creates true and sustainable value for our customers. I came to our company in a roundabout way. After receiving my PhD in 1996 I applied for a position at Merck KGaA, Darmstadt, Germany but my application got rejected. Back then I had an option of getting a good job with a big German software company but I decided to pursue my passion for chemistry and applied for a postdoc fellowship at the Alexander von Humboldt Foundation – which I luckily received. After my postdoc I joined a small OLED startup, Covion, which was acquired by Merck KGaA, Darmstadt, Germany a few years later. Looking back, I realize that following my passion for chemistry was one of the best decisions I have made so far. Just like research lines, careers cannot be master planned – surprises are still the impulse for change.
Chemistry is my passion. It all started when I dissolved a piece of copper tubing in acetic essence in my mother´s kitchen. Guess what, she was not amused...
Joined Merck KGaA, Darmstadt, Germany: 2005
Key research fields and topics:
- Synthetic Organic and Organometallic Chemistry
- Luminescent Materials
- Tiplet Dopants
Prizes and awards:
- Doktoranden-Förderpreis der WE-Heraeus-Stiftung, 1996
- Feodor-Lynen-Fellowship, Alexander von Humboldt-Stiftung,1996 - 1998
- Avecia CEO´s Innovation Award, 2002
CV & Scientific activities
Publications and Lectures
- Photokinetic examination of (Z,E,E)-4,4´-distyrylazobenzol
Günther Gauglitz, Philipp Stoessel, Herbert Meier, Hermann Rau, J. Photochem. Photobiol., A: Chemistry 1995, 85(3), 207-211.
- Synthesis and x-ray structure of cis,cis-1,3,5-(Trisdiphenylphosphino)-1,3,5-tris(methoxycarbonyl)cyclohexane
Hermann A. Mayer, Philipp Stoessel, Riad Fawzi, Manfred Steimann, J. Organomet. Chem. 1995, 492(1), C1-C3.
- Synthesis and complexation behavior of the functionalized tripodal phosphine cis,cis-1,3,5-Tris(cyano)-1,3,5-tris(diphenylphosphin) cyclohexane (tdppcycn)
Hermann A. Mayer, Philipp Stoessel, Riad Fawzi, Manfred Steimann, Chem. Ber. 1995, 128(7), 719-723.
- Synthesis of solid supported tripodal ligand systems
Philipp Stoessel, Lecture at the Jahrestagung der Forschergruppe “Chemie in Interphasen”, Tübingen.
- Stereochemical and Electronic Control of Functionalized Tripodal Phosphines of the Adamantane-Type Ir(tripod)(CO)Cl (tripod = cis,cis-1,3,5-(PPh2)3-1,3,5-X3C6H6; X = H, COOMe, CN) - Complexes toward H+, H2, CO and C2H4
Philipp Stoessel, Wolfgang Heins, Hermann A. Mayer, Riad Fawzi, Manfred Steimann, Organometallics 1996, 15(15), 3393-3403.
- The Mo(CO)3 Fragment as an Organometallic Protection Group in the Synthesis of Functionalized Tripodal Phosphine Ligands
Philipp Stoessel, Hermann A. Mayer, Caecilia Maichele-Moessmer, Riad Fawzi, Manfred Steimann, Inorg. Chem. 1996, 35(20), 5860-5867.
- The Mo(CO)3 Fragment as an organometallic Protection Group in the synthesis of functionalized Tripodal Phosphine Ligands
Philipp Stoessel, Lecture at the Seminary of Inorganic Chemistry, Colorado-State-University, Fort Collins, CO, USA.
- Synthesis of immobilizable and water-soluble tripodal phosphine ligands supported by organometallic protection groups
Hermann A. Mayer, Philipp Stoessel, GIT Labor-Fachzeitschrift 1997, 41(8), 820-821.
- NMR Studies of the Interaction of Methane with the MMO Hydroxylase
Philipp Stoessel, Lecture at the Methane Monoxygenase Symposium, MIT, Boston, MA, USA.
- Water-soluble tripodal phosphine ligands and their rhodium complexes
Philipp Stoessel, Hermann A. Mayer, Friedrich Auer, Europ. J. Inorg. Chem. 1998, 1, 37-41.
- Control of the basicity of the Ir(tdppcymome)(CO)Cl complex with methoxymethyl functional groups at the ligand backbone [tdppcymome = cis,cis-1,3,5-(PPh2)3-1,3,5-(CH2OCH3)3-C6H6]
Philipp Stoessel, Wolfgang Heins, Hermann A Mayer, Wolfgang Horner, Teja S. Ertel, Helmut Bertagnolli, J. Organomet. Chem., 1998, 552(1-2), 229-236.
- Synthesis and characterization of Ni-, Pd- and Pt-complexes of functionalized, tripodal phosphine complexes
Wolfgang Heins, Philipp Stoessel, Riad Fawzi, Manfred Steimann, J. Organomet. Chem., 1999, 587(2), 258-266.
- Binding and Activation of Dioxygen at binuclear Iron Complexes
Philipp Stoessel, Lecture at the Sonderforschungsbereich 436, University of Jena, Germany.
- Blue temperature stable and efficient OLEDs using amorphous spiro compounds
Philipp Stoessel, International conference on synthetic metals - ISCM, Bad Gastein, Austria.
- Rhenium Oxo Complexes of a Chelating Diyne Ligand. Synthesis and Study of the Kinetics of Protonation
Yi Han, Jeff C. Harlan, Philipp Stoessel, Brian Frost, Jack R. Norton, Susie Miller, Brian Bridgewater, Qiang Xu, Inorg. Chem. 2001, 40(13), 2942-2952.
- White and blue temperature stable and efficient OLEDs using amorphous spiro transport and spiro emitting compounds.
Hubert Spreitzer, Horst Vestweber, Philipp Stoessel, Heinrich Becker, Proceedings of the SPIE – The International Society for Optical Engineering 2001, 4105 (Organic Light-Emitting Materials and Devices IV) 125-133.
- Developments in polymer materials for electroluminescence
Heinrich Becker, Horst Vestweber, Arne Buesing, Aurelie Falcou, Susanne Heun, Edgar Kluge, Amir Parham, Philipp Stoessel, Hubert Spreitzer, Kevin Treacher, Proceedings of the SPIE – The International Society for Optical Engeneering 2002, 4464 (Organic Light-Emitting Materials and Devices V) 49-58.
- Light emitting polymer materials for full-color displays
Hubert Spreitzer, Heinrich Becker, Esther Breuning, Aurelie Falco, Kevin Treacher, Arne Buesing, Amir Parham, Philipp Stoessel, Susanne Heun, Juergen Steiger, Proceedings of the SPIE – The International Society for Optical Engineering 2003, 4800 (Organic Light-Emitting Materials and Devices VI) 16-25.
- Light emitting polymer materials: The working base for flexible full color displays
Heinrich Becker, Esther Breuning, Arne Buesing, Aurelie Falco, Susanne Heun, Amir Parham, Hubert Spreitzer, Juergen Steiger, Philipp Stoessel, Material Research Society Symposium Proceedings 2003, 769, 3-14.
- A vibrational study of the diosmacyclobutene complex Os2(CO)8(µ2-1,1-C2H2): the use of organometallic complexes as vibrational models for chemisorbed ethyne
Christopher E. Anson, Norman Sheppard, Ryan Pearman, John R. Moss, Philipp Stoessel, Sandra Koch, Jack R. Norton, Phys. Chem. Chem. Phys. 2004, 6(5), 1070-1076.
- Carbazole Compounds as Host Materials for Triplet Emitters in Organic Light-Emitting Diodes: Polymer Host for High-Efficiency Light-Emitting Diodes
Addy van Dijken, Jolanda J. A. M. Bastiaansen, Nicole M. M. Kiggen, Bea M. W. Langeveld, Carsten Rothe, Andy Monkman, Ingrid Bach, Philipp Stoessel, Klemens Brunner, J. Am. Chem. Soc. 2004, 126(24), 7718-7727.
- Deep blue widely tunable organic solid-state laser based on a spiro-bifluorene derivative
Daniel Schneider, Torsten Rabe, Thomas Riedl, Thomas Dobbertin, Olaf Werner, Michael Kroger, Eike Becker, Hans-Hermann Johannes, Wolfgang Kowalsky, Thomas Weimann, Jing Wang, Peter Hinze, Anja Gerhard, Philipp Stoessel, Horst Vestweber, App. Phys. Lett. 2004, 84(23), 4693-4695.
- Emission and absorption of Ir(ppy)2(CO)Cl – temperature dependence, phosphorescence decay dynamics, and assignment of excited states
Walter J. Finkenzeller, Philipp Stoessel, Hartmut Yersin, Chem. Phys. Lett. 2004, 397(4-6), 289-295.
- Late-news paper: novel host materials for efficient and stable phosphorescent OLED devices
Heinrich Becker, Horst Vestweber, Anja Gerhard, Philipp Stoessel, Rocco Fortte, Digest of Technical Papers – Society for Information Displays International Symposium 2004, 35, 796-799.
- Highly efficient deep-blue organic light-emitting diodes with doped transport layers
Desta Gebryehu, Karsten Walzer, Gufeng He, Martin Peiffer, Karl Leo, Julia Brandt, Anja Gerhard, Philipp Stoessel, Horst Vestweber, Synth. Met. 2005, 148(2), 205-211.
- An ultraviolet organic thin-film solid-state laser for biomarker applications
Daniel Schneider, Torsten Rabe, Thomas Riel, Thomas Dobberetin, Michael Kroeger, Eike Becker, Hans-Hermann Johannes, Wolfgang Kowalsky, Thomas Weimann, Jing Wang, Peter Hinze, Anjs Gerhard, Philipp Stoessel, Horst Vestweber, Advanced Mat. 2005 17(1), 31-34.
- Crystal Structure of fac-Ir(ppy)3 and Emission Properties under Ambient Condition and at High Pressure
Josef Breu, Philipp Stoessel, Sigurd Schrader, Alexander Starukhin, Walter J. Finkenzeller, Hartmut Yersin, Chem. Mat. 2005, 17(7), 1745-1752.
- Green light-emitting solid-state electrochemical cell obtained from a homoleptic iridium(III)complex containing ionically charged ligands
Henk J. Bolink, Luca Cappelli, Eugenio Coronado, Amir Parham, Philipp Stoessel, Chem. Mat. 2006, 18(12), 2778-2780.
- Rapid combinatorial synthesis and chromatography based screening of phosphorescent iridium complexes for solution processing
Andreas Hohenleuther, Susanna Schmidbauer, Rudolf Vasold, Dominik Joosten, Philipp Stoessel, Herwig Buchholz, Burkhard Koenig, Adv. Funct. Mater. 2012, 22(16), 3406.