Person | Adolphe Merkle Institute | Université de Fribourg

GUNKEL Ilja

Alumni

Group leader, Soft Matter Physics

Adolphe Merkle Institute Chemin des Verdiers 4 CH-1700 Fribourg Switzerland

Office:	B129
Phone:	+41 26 300 7398
Email:	ilja.gunkel@unifr.ch
	0000-0001-5738-5309

Projects lead

Polymer self-assembly in films

Self-assembly of polymers for the generation of well-defined and controlled nanostructures

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Solid polymer electrolytes (SPEs) for lithium batteries

Creating a polymeric alternative to state of the art liquid/gelled organic solvent electrolytes to increase…

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Projects team

Mesoporous electrode materials for lithium ion batteries

Nanostructuring electrode and electrolyte materials for their performance enhancement in batteries.

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Publications

Anoplophora graafi longhorn beetle coloration is due to disordered diamond-like packed spheres
Kenza Djeghdi, Cedric Schumacher, Viola Bauernfeind, Ilja Gunkel, Bodo Wilts, Ullrich Steiner
Soft Matter (2024)

Biopolymer Photonics: From Nature to Nanotechnology
Viola V. Vogler‐Neuling, Matthias Saba, Ilja Gunkel, Justin O. Zoppe, Ullrich Steiner, Bodo D. Wilts, Andrea Dodero
Advanced Functional Materials (2023)

Photonic Amorphous I‐WP‐Like Networks Create Angle‐Independent Colors in Sternotomis virescens Longhorn Beetles
Viola Bauernfeind, Kenza Djeghdi, Ilja Gunkel, Ullrich Steiner, Bodo D. Wilts
Advanced Functional Materials (2023)

Rendering Polyurethane Hydrophilic for Efficient Cellulose Reinforcement in Melt‐Spun Nanocomposite Fibers
Alexandre Redondo, Livia K. Bast, Kenza Djeghdi, Martino Airoldi, Daseul Jang, LaShanda T. J. Korley, Ullrich Steiner, Nico Bruns, Ilja Gunkel
Advanced Materials Interfaces , 2201979 (2023)

An electrolyte additive for the improved high voltage performance of LiNi0.5Mn1.5O4 (LNMO) cathodes in Li-ion batteries
Minh Tri Nguyen, Hieu Quang Pham, José Augusto Berrocal, Ilja Gunkel, Ullrich Steiner
Journal of Materials Chemistry A (2023)

Cellulose nanofiber-reinforced solid polymer electrolytes with high ionic conductivity for lithium batteries
Cristina Prado-Martínez, Preston Sutton, Isabella Mombrini, Aristotelis Kamtsikakis, Worarin Meesorn, Christoph Weder, Ullrich Steiner, Ilja Gunkel
Journal of Materials Chemistry A (2023)

Introduction to the honorary themed collection for Thomas P. Russell
Ilja Gunkel, Xiaodan Gu, Jodie Lutkenhaus, Du Yeol Ryu, Jiun-Tai Chen, Zhiqun Lin
Journal of Materials Chemistry A (2023)

Robust Full‐Spectral Color Tuning of Photonic Colloids
Andrea Dodero, Kenza Djeghdi, Viola Bauernfeind, Martino Airoldi, Bodo D. Wilts, Christoph Weder, Ullrich Steiner, Ilja Gunkel
Small , 2205438 (2022)

Mechanically robust supramolecular polymer co-assemblies
Julien Sautaux, Franziska Marx, Ilja Gunkel, Christoph Weder, Stephen Schrettl
Nature Communications 13 (2022)

Comparing Percolation and Alignment of Cellulose Nanocrystals for the Reinforcement of Polyurethane Nanocomposites
Alexandre Redondo, Nicole Mortensen, Kenza Djeghdi, Daseul Jang, Roberto D. Ortuso, Christoph Weder, LaShanda T. J. Korley, Ullrich Steiner, Ilja Gunkel
ACS Applied Materials & Interfaces (2022)

Photonic Particles Made By The Confined Self‐assembly of A Supramolecular Comb‐like Block Copolymer
Guillaume Moriceau, Cédric Kilchoer, Kenza Djeghdi, Christoph Weder, Ullrich Steiner, Bodo D. Wilts, Ilja Gunkel
Macromolecular Rapid Communications , 2100522 (2021)

Polymer-templated mesoporous lithium titanate microspheres for high-performance lithium batteries
Minh Tri Nguyen, Preston Sutton, Andrea Palumbo, Michael G. Fischer, Xiao Hua, Ilja Gunkel, Ullrich Steiner
Materials Advances (2021)

Hyperbolic Optical Metamaterials from Shear‐Aligned Block Copolymer Cylinder Arrays
Cédric Kilchoer, Doha Abdelrahman, S. Narjes Abdollahi, Ava A. LaRocca, Ullrich Steiner, Matthias Saba, Ilja Gunkel, Bodo D. Wilts
Advanced Photonics Research (2020)

Carbon‐Assisted Stable Silver Nanostructures
S. Narjes Abdollahi, Efraín Ochoa Martínez, Cédric Kilchoer, Geoffroy Kremer, Thomas Jaouen, Philipp Aebi, Tim Hellmann, Thomas Mayer, Yibei Gu, Ulrich B. Wiesner, Ullrich Steiner, Bodo D. Wilts, Ilja Gunkel
Advanced Materials Interfaces (2020)

Structure–Property Relationships of Microphase-Separated Metallosupramolecular Polymers
Laura N. Neumann, Ilja Gunkel, Amber Barron, Emad Oveisi, Albrecht Petzold, Thomas Thurn-Albrecht, Stephen Schrettl, Christoph Weder
Macromolecules (2020)

Strong Circular Dichroism in Single Gyroid Optical Metamaterials
Cédric Kilchoer, Narjes Abdollahi, James A. Dolan, Doha Abdelrahman, Matthias Saba, Ulrich Wiesner, Ullrich Steiner, Ilja Gunkel, Bodo D. Wilts
Advanced Optical Materials (2020)

Electrospinning of Cellulose Nanocrystal-Reinforced Polyurethane Fibrous Mats
Alexandre Redondo, Daseul Jang, LaShanda T. J. Korley, Ilja Gunkel, Ullrich Steiner
Polymers (2020)

Tuning the Properties of a UV-Polymerized, Cross-Linked Solid Polymer Electrolyte for Lithium Batteries
Preston Sutton, Martino Airoldi, Luca Porcarelli, Jorge L. Olmedo-Martínez, Clément Mugemana, Nico Bruns, David Mecerreyes, Ullrich Steiner, Ilja Gunkel
Polymers (2020)

Determining the complex Jones matrix elements of a chiral 3D optical metamaterial
Cédric Kilchoer, Narjes Abdollahi, Ullrich Steiner, Ilja Gunkel, Bodo D. Wilts
APL Photonics (2019)

Surface Reconstruction Limited Conductivity in Block‐Copolymer Li Battery Electrolytes
Preston Sutton, Peter Bennington, Shrayesh N. Patel, Morgan Stefik, Ulrich B. Wiesner, Paul F. Nealey, Ullrich Steiner, Ilja Gunkel
Advanced Functional Materials (2019)

Melt-Spun Nanocomposite Fibers Reinforced with Aligned Tunicate Nanocrystals
Alexandre Redondo, Sourav Chatterjee, Pierre Brodard, LaShanda T. J. Korley, Christoph Weder, Ilja Gunkel, Ullrich Steiner
Polymers (2019)

Contrasting Chemistry of Block Copolymer Films Controls the Dynamics of Protein Self-Assembly at the Nanoscale
Bart Stel, Ilja Gunkel, Xiaodan Gu, Thomas P. Russell, James J. De Yoreo, Magalí Lingenfelder
ACS Nano (2019)

Metasurfaces Atop Metamaterials: Surface Morphology Induces Linear Dichroism in Gyroid Optical Metamaterials
James A. Dolan, Raphael Dehmel, Angela Demetriadou, Yibei Gu, Ulrich Wiesner, Timothy D. Wilkinson, Ilja Gunkel, Ortwin Hess, Jeremy J. Baumberg, Ullrich Steiner, Matthias Saba, Bodo D. Wilts
Advanced Materials (2019)

Directing Block Copolymer Self-Assembly on Patterned Substrates
Ilja Gunkel
Small (2018)

Correction to Semicrystalline Block Copolymers in Rigid Confining Nanopores
Man Yan Eric Yau, Ilja Gunkel, Brigitte Hartmann-Azanza, Wajiha Akram, Yong Wang, Thomas Thurn-Albrecht, Martin Steinhart
Macromolecules (2018)

Controlling Self-Assembly in Gyroid Terpolymer Films By Solvent Vapor Annealing
James A. Dolan, Karolina Korzeb, Raphael Dehmel, Karl C. Gödel, Morgan Stefik, Ulrich Wiesner, Timothy D. Wilkinson, Jeremy J. Baumberg, Bodo D. Wilts, Ullrich Steiner, Ilja Gunkel
Small (2018)

Structural Behavior of Cylindrical Polystyrene-block -Poly(ethylene-butylene)-block -Polystyrene (SEBS) Triblock Copolymer Containing MWCNTs: On the Influence of Nanoparticle Surface Modification
Noushin Hasanabadi, Hossein Nazockdast, Bernadetta Gajewska, Sandor Balog, Ilja Gunkel, Nico Bruns, Marco Lattuada
Macromolecular Chemistry and Physics (2017)

Semicrystalline Block Copolymers in Rigid Confining Nanopores
Man Yan Eric Yau, Ilja Gunkel, Brigitte Hartmann-Azanza, Wajiha Akram, Yong Wang, Thomas Thurn-Albrecht, Martin Steinhart
Macromolecules (2017)

Phase Segregation in Supramolecular Polymers Based on Telechelics Synthesized Via Multicomponent Reactions
Ansgar Sehlinger, Nikolai Bartnick, Ilja Gunkel, Michael A. R. Meier, Lucas Montero de Espinosa
Macromolecular Chemistry and Physics (2017)

Optical Imaging of Large Gyroid Grains in Block Copolymer Templates by Confined Crystallization
Raphael Dehmel, James A. Dolan, Yibei Gu, Ulrich Wiesner, Timothy D. Wilkinson, Jeremy J. Baumberg, Ullrich Steiner, Bodo D. Wilts, Ilja Gunkel
Macromolecules (2017)

Mesoporous Titania Microspheres with Highly Tunable Pores as an Anode Material for Lithium Ion Batteries
Michael G. Fischer, Xiao Hua, Bodo D. Wilts, Ilja Gunkel, Thomas M. Bennett, Ullrich Steiner
ACS Applied Materials & Interfaces (2017)

Macroscopically ordered hexagonal arrays by directed self-assembly of block copolymers with minimal topographic patterns
Jaewon Choi, Ilja Gunkel, Yinyong Li, Zhiwei Sun, Feng Liu, Hyeyoung Kim, Kenneth R. Carter, Thomas P. Russell
Nanoscale (2017)

Patterning of perovskite–polymer films by wrinkling instabilities
G. Nasti, S. Sanchez, I. Gunkel, S. Balog, B. Roose, B. D. Wilts, J. Teuscher, G. Gentile, P. Cerruti, V. Ambrogi, C. Carfagna, U. Steiner, A. Abate
Soft Matter (2017)

Gyroid Optical Metamaterials: Calculating the Effective Permittivity of Multi-Domain Samples
James A. Dolan, Matthias Saba, Raphael Dehmel, Ilja Gunkel, Yibei Gu, Ulrich Wiesner, Ortwin Hess, Timothy D. Wilkinson, Jeremy J. Baumberg, Ullrich Steiner, Bodo D. Wilts
ACS Photonics (2016)

Controlling Domain Spacing and Grain Size in Cylindrical Block Copolymer Thin Films by Means of Thermal and Solvent Vapor Annealing
Xiaodan Gu, Ilja Gunkel, Alexander Hexemer, Thomas P. Russell
Macromolecules (2016)

An in situ GISAXS study of selective solvent vapor annealing in thin block copolymer films: Symmetry breaking of in-plane sphere order upon deswelling
Ilja Gunkel, Xiaodan Gu, Zhiwei Sun, Eric Schaible, Alexander Hexemer, Thomas P. Russell
Journal of Polymer Science, Part B: Polymer Physics (2016)

Probing and controlling liquid crystal helical nanofilaments
Chenhui Zhu, Cheng Wang, Anthony Young, Feng Liu, Ilja Gunkel, Dong Chen, David Walba, Joseph Maclennan, Noel Clark, Alexander Hexemer
Nano Letters (2015)

Selective laser ablation in resists and block copolymers for high resolution lithographic patterning
Deirdre L. Olynick, Pradeep Perera, Adam Schwartzberg, Prashant Kulshreshta, Dimas G. De Oteyza, Nathan Jarnagin, Cliff Henderson, Zhiwei Sun, Ilja Gunkel, Thomas Russell, Matthias Budden, Ivo W. Rangelow
Journal of Photopolymer Science and Technology (2015)

An in situ grazing incidence X-ray scattering study of block copolymer thin films during solvent vapor annealing
Xiaodan Gu, Ilja Gunkel, Alexander Hexemer, Weiyin Gu, Thomas P. Russell
Advanced Materials (2014)

Solvent vapor annealing of block copolymer thin films: Removal of processing history
Xiaodan Gu, Ilja Gunkel, Alexander Hexemer, Thomas P. Russell
Colloid and Polymer Science (2014)

Pattern transfer using block copolymers
Xiaodan Gu, Ilja Gunkel, Thomas P. Russell
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (2013)

High aspect ratio sub-15 nm Silicon Trenches from Block Copolymer Templates
Xiaodan Gu, Zuwei Liu, Ilja Gunkel, S. T. Chourou, Sung Woo Hong, Deirdre L. Olynick, Thomas P. Russell
Advanced Materials (2012)

Thermodynamic and structural changes in ion-containing symmetric diblock copolymers: A small-angle X-ray scattering study
Ilja Gunkel, Thomas Thurn-Albrecht
Macromolecules (2012)

Block copolymer nanotubes by melt-infiltration of nanoporous aluminum oxide
Bhanuprathap Pulamagatta, Man Yan Eric Yau, Ilja Gunkel, Thomas Thurn‐Albrecht, Klaus Schröter, Dirk Pfefferkorn, Jörg Kressler, Martin Steinhart, Wolfgang H. Binder
Advanced Materials (2011)

Aggregation and chain dynamics in supramolecular polymers by dynamic rheology: Cluster formation and self-Aggregation
Florian Herbst, Klaus Schröter, Ilja Gunkel, Stefan Gröger, Thomas Thurn-Albrecht, Jochen Balbach, Wolfgang H. Binder
Macromolecules (2010)

Fiber - And tube - Formation by melt infiltration of block copolymers into Al2O3-pores
Bhanuprathap Pulamagatta, Wolfgang H. Binder, Eric Yau, Ilja Gunkel, Thomas Thurn‐Albrecht, Martin Steinhart
Macromolecular Symposia (2010)

Improved mechanical stability of dried collagen membrane after metal infiltration
Seung-Mo Lee, Eckhard Pippel, Oussama Moutanabbir, Ilja Gunkel, Thomas Thurn-Albrecht, Mato Knez
ACS Applied Materials and Interfaces (2010)

Fluctuation effects of the microphase separation of diblock-copolymers in the presence of an electric field
I. Gunkel, S. Stepanow, S. Trimper, T. Thurn-Albrecht, Michio Tokuyama, Irwin Oppenheim, Hideya Nishiyama
AIP Conference Proceedings (2008)

Fluctuation effects in the theory of microphase separation of diblock copolymers in the presence of an electric field
I. Gunkel, S. Stepanow, T. Thurn-Albrecht, S. Trimper
Macromolecules (2007)

GUNKEL Ilja

Polymer self-assembly in films

Solid polymer electrolytes (SPEs) for lithium batteries

Mesoporous electrode materials for lithium ion batteries