Publications K. Zojer group

Transport of volatiles in porous materials (4)
DMSO sorption in paper

Unraveling overlapping processes in the sorption and in the release dynamics of DMSO vapor in paper

2025 paper sorption, release optical microscopy kinetics CDL mass transport Open Access

R. Teubler, A. Serebrennikova, E. Leitner, M. Fuchs, R. Saf, and K. Zojer. Adsorption, 31 (2025) 104.

DOI: 10.1007/s10450-025-00656-x

Organic volatile desorption

Kinetics of Organic Volatile Desorption from Cellulose-Based Materials

2024 paper release kinetics CDL mass transport Open Access

A. Serebrennikova, R. Teubler, E. Leitner, and K. Zojer. Industrial & Engineering Chemistry Research, 63 (2024) 9380-9390.

DOI: 10.1021/acs.iecr.4c00553

Physics informed neural networks

Physics informed neural networks reveal valid models for reactive diffusion of volatiles through paper

2024 paper PINNs sorption kinetics CDL mass transport Open Access

A. Serebrennikova, R. Teubler, L. Hoffellner, E. Leitner, U. Hirn, and K. Zojer. Chemical Engineering Science, 285 (2024) 119636.

DOI: 10.1016/j.ces.2023.119636

Transport of volatiles through paper

Transport of Organic Volatiles through Paper: Physics-Informed Neural Networks for Solving Inverse and Forward Problems

2022 paper PINNs sorption kinetics CDL mass transport Open Access

A. Serebrennikova, R. Teubler, L. Hoffellner, E. Leitner, U. Hirn, and K. Zojer. Transport in Porous Media, 145 (2022) 589-612.

DOI: 10.1007/s11242-022-01864-7

Microstructure of porous materials (11)
Hierarchical nanoporous copper

Microstructure of hierarchical nanoporous copper from electrochemical dealloying of additively manufactured and cast Al–Cu intermetallics

2026 nanoporous copper electrochemical dealloying XRD Hg intrusion μ-CT SEM TEM hierarchical pore structure lead project PMWS Open Access

P. P. Biswal, S. Graf, M. Luckabauer, M. Eichlseder, F. G. Warchomicka, F. Blaschke, H. Fitzek, T. Kormilina, M. Fuchs, E. M. Charry, B. Kunert, E.-M. Steyskal, R. Resel, and K. Zojer. Materialia, 45 (2026) 102678.

DOI: 10.1016/j.mtla.2026.102678

Air flow in calendered paper sheets

Predicting Air Flow in Calendered Paper Sheets from μ-CT Data: Combining Physics with Morphology

2026 paper simulations computational fluid dynamics pore network model image analysis μ-CT permeability CDL mass transport Open Access

P. Gräfensteiner, A. Rodriguez, P. Leitl, E. Baikova, M. Fuchs, E. Machado Charry, U. Hirn, A. Hilger, I. Manke, R. Schennach, M. Neumann, V. Schmidt, and K. Zojer. Transport in Porous Media, 153 (2026) 15.

DOI: 10.1007/s11242-025-02250-9

X-ray interaction with cellulose materials

Estimating dose and interaction of X-rays with cellulose-based fibrous materials using micro-computed tomography

2026 paper viscose μ-CT dose estimation radiation damage Open Access

A. Apfolter, P. Schindler, V. Haberl, M. Fuchs, K. Zojer, E. Machado Charry, and R. Schennach. TAPPI Journal, 25 (2026) 129.

DOI: 10.32964/TJ25.3.129

Void volume characteristics in cellulose materials

Application of micro-CT imaging and SNOW-based partition to investigate the void volume characteristics in porous cellulose materials

2026 viscose μ-CT pore space partition (SNOW) Open Access

T. Harter, M. Fuchs, E. Machado-Charry, I. Bernt, E. Baikova, A. Maaß, R. Schennach, K. Zojer, and U. Hirn. Cellulose, 33 (2026) 665–679.

DOI: 10.1007/s10570-025-06890-4

Chemical looping hydrogen production

Advancing Green Hydrogen Purity with Iron-Based Self-Cleaning Oxygen Carriers in Chemical Looping Hydrogen

2024 H2 Fe-YSZ-SiO2 μ-CT Hg intrusion catalysis lead project PMWS Open Access

F. Blaschke, B. P. Prasad, E. Machado Charry, K. Halper, M. Fuchs, R. Resel, K. Zojer, M. Lammer, R. Hasso, and V. Hacker. Catalysts, 14 (2024) 515.

DOI: 10.3390/catal14080515

RVine Copula

R-Vine Copulas for Data-Driven Quantification of Descriptor Relationships in Porous Materials

2024 paper R-vine copula image analysis compact parametric descriptor model CDL mass transport Open Access

M. Neumann, P. Gräfensteiner, E. Machado Charry, U. Hirn, A. Hilger, I. Manke, R. Schennach, V. Schmidt, and K. Zojer. Advanced Theory and Simulations, 7 (2024) 2301261.

DOI: 10.1002/adts.202301261

Local pore space properties

Joint Distributions of Local Pore Space Properties Quantitatively Explain Simulated Air Flow Variations in Paper

2023 paper Copula image analysis computational fluid dynamics porosity tortuosity model permeance CDL mass transport Open Access

P. Leitl, E. M. Charry, E. Baikova, M. Neumann, U. Hirn, V. Schmidt, and K. Zojer. Transport in Porous Media, 148 (2023) 627-648.

DOI: 10.1007/s11242-023-01964-y

Where is the Water

Where is the Water?

2022 paper μ-CT time-resolved segmentation liquid volume quantification CDL mass transport Open Access

M. Fuchs, E. M. Charry, G. Böhm, R. Resel, R. Schennach, and K. Zojer. Trans. of the XVIIth Fund. Res. Symp. Cambridge, 2022, 2022 (2022) 495-510.

DOI: 10.15376/frc.2022.1.495

Calendered paper micro-CT benchmark

Capturing Centimeter-Scale Local Variations in Paper Pore Space via μ-CT: A Benchmark Study Using Calendered Paper

2021 paper image analysis μ-CT local variability microstucture descriptors CDL mass transport Open Access

M. Neumann, E. Machado Charry, E. Baikova, A. Hilger, U. Hirn, R. Schennach, I. Manke, V. Schmidt, and K. Zojer. Microscopy and Microanalysis, 27 (2021) 1305-1315.

DOI: 10.1017/S1431927621012563

Porosity and tortuosity in sack paper

On variability and interdependence of local porosity and local tortuosity in porous materials: A case study for sack paper

2020 paper image analysis μ-CT copula microstucture descriptors CDL mass transport

M. Neumann, E. Machado Charry, K. Zojer, and V. Schmidt. Methodology and Computing in Applied Probability, (2020).

DOI: 10.1007/s11009-019-09761-1

Pore space extraction in sack paper

Pore space extraction and characterization of sack paper using μ-CT: Pore space extraction and characterization

2021 paper image analysis μ-CT segmentation pore space descriptors CDL mass transport Open Access

E. Machado Charry, M. Neumann, J. Lahti, R. Schennach, V. Schmidt, and K. Zojer. Journal of Microscopy, 272 (2018) 35-46.

DOI: 10.1111/jmi.12730

Transport in electronic devices (14)
Charge carriers in organic electronic devices

Simulation of Charge Carriers in Organic Electronic Devices: Methods with their Fundamentals and Applications

2021 organic electronic devices simulation methods devices in operation FWF Elise Richter Review Open Access

K. Zojer. Advanced Optical Materials, 9 (2021) 2100219.

DOI: 10.1002/adom.202100219

MoS2 gold interfaces

Interfacial Band Engineering of MoS2/Gold Interfaces Using Pyrimidine-Containing Self-Assembled Monolayers: Toward Contact-Resistance-Free Bottom-Contacts

A. Matković, A. Petritz, G. Schider, M. Krammer, M. Kratzer, E. Karner-Petritz, A. Fian, H. Gold, M. Gärtner, A. Terfort, C. Teichert, E. Zojer, K. Zojer, and B. Stadlober. Advanced Electronic Materials, 6 (2020) 2000110.

DOI: 10.1002/aelm.202000110

Flexible organic transistors

Small contact resistance and high-frequency operation of flexible low-voltage inverted coplanar organic transistors

J. W. Borchert, B. Peng, F. Letzkus, J. N. Burghartz, P. K. L. Chan, K. Zojer, S. Ludwigs, and H. Klauk. Nature Communications, 10 (2019) 1119.

DOI: 10.1038/s41467-019-09119-8

Organic thin-film transistor models

Critical Evaluation of Organic Thin-Film Transistor Models

M. Krammer, J. W. Borchert, A. Petritz, E. Karner-Petritz, G. Schider, B. Stadlober, H. Klauk, and K. Zojer. Crystals, 9 (2019) 85.

DOI: 10.3390/cryst9020085

Electrical doping of organic semiconductors

Elementary steps in electrical doping of organic semiconductors

M. L. Tietze, J. Benduhn, P. Pahner, B. Nell, M. Schwarze, H. Kleemann, M. Krammer, K. Zojer, K. Vandewal, and K. Leo. Nature Communications, 9 (2018) 1182.

DOI: 10.1038/s41467-018-03302-z

Oligothiophene molecular junctions

Tunneling Probability Increases with Distance in Junctions Comprising Self-Assembled Monolayers of Oligothiophenes

Y. Zhang, S. Soni, T. L. Krijger, P. Gordiichuk, X. Qiu, G. Ye, H. T. Jonkman, A. Herrmann, K. Zojer, E. Zojer, and R. C. Chiechi. Journal of the American Chemical Society, 140 (2018) 15048–15055.

DOI: 10.1021/jacs.8b09793

Dipole self-assembled monolayers

Embedded Dipole Self-Assembled Monolayers for Contact Resistance Tuning in p-Type and n-Type Organic Thin Film Transistors and Flexible Electronic Circuits

A. Petritz, M. Krammer, E. Sauter, M. Gärtner, G. Nascimbeni, B. Schrode, A. Fian, H. Gold, A. Cojocaru, E. Karner-Petritz, R. Resel, A. Terfort, E. Zojer, M. Zharnikov, K. Zojer, and B. Stadlober. Advanced Functional Materials, 28 (2018) 1804462.

DOI: 10.1002/adfm.201804462

Schottky barriers in organic transistors

Utilizing Schottky barriers to suppress short-channel effects in organic transistors

A. Fernández Fernández and K. Zojer. Applied Physics Letters, 111 (2017) 173302.

DOI: 10.1063/1.4997405

Nano-patterned organic transistors

Switching from weakly to strongly limited injection in self-aligned, nano-patterned organic transistors

K. Zojer, T. Rothländer, J. Kraxner, R. Schmied, U. Palfinger, H. Plank, W. Grogger, A. Haase, H. Gold, and B. Stadlober. Scientific Reports, 6 (2016) 31387.

DOI: 10.1038/srep31387

Dielectric capacitance and contact resistance

Impact of the Capacitance of the Dielectric on the Contact Resistance of Organic Thin-Film Transistors

K. Zojer, E. Zojer, A. Fernandez, and M. Gruber. Physical Review Applied, 4 (2015) 044002.

Contact resistance materials and geometry

Impact of Materials versus Geometric Parameters on the Contact Resistance in Organic Thin-Film Transistors

M. Gruber, E. Zojer, F. Schürrer, and K. Zojer. Advanced Functional Materials, 23 (2013) 2941-2952.

Injection barrier and contact resistance

Relation between injection barrier and contact resistance in top-contact organic thin-film transistors

M. Gruber, F. Schürrer, and K. Zojer. Organic Electronics, 13 (2012) 1887-1899.

Surface proton transfer doping

Mechanism of surface proton transfer doping in pentacene based organic thin-film transistors

S. J. Ausserlechner, M. Gruber, R. Hetzel, H.-G. Flesch, L. Ladinig, L. Hauser, A. Haase, M. Buchner, R. Resel, F. Schürrer, B. Stadlober, G. Trimmel, K. Zojer and E. Zojer. physica status solidi (a), 209 (2012) 181-192.

DOI: 10.1002/pssa.201127595

Threshold voltage shifts due to self-assembled monolayers

Threshold Voltage Shifts in Organic Thin-Film Transistors Due to Self-Assembled Monolayers at the Dielectric Surface

S. K. Possanner, K. Zojer, P. Pacher, E. Zojer, and F. Schürrer. Advanced Functional Materials, 19 (2009) 958-967.

Transport in opto-electronic devices (7)
Thermal transport in OLEDs

Impact of thermal transport parameters on the operating temperature of organic light emitting diodes

G. Krikun and K. Zojer. Journal of Applied Physics, 125 (2019) 085501.

DOI: 10.1063/1.5079531

BCP interfacial layers in OPV cells

Area dependent behavior of bathocuproine (BCP) as cathode interfacial layers in organic photovoltaic cells

B. R. Patil, M. Ahmadpour, G. Sherafatipour, T. Qamar, A. F. Fernández, K. Zojer, H.-G. Rubahn, and M. Madsen. Scientific Reports, 8 (2018) 12608.

DOI: 10.1038/s41598-018-30826-7

Charge transfer state in organic solar cells

Role of the Charge-Transfer State in Reduced Langevin Recombination in Organic Solar Cells: A Theoretical Study

Y. Liu, K. Zojer, B. Lassen, J. Kjelstrup-Hansen, H.-G. Rubahn, and M. Madsen. The Journal of Physical Chemistry C, 119 (2015) 26588-26597.

DOI: 10.1021/acs.jpcc.5b08936

Hybrid solar cell morphology

Influence of morphology and polymer:nanoparticle ratio on device performance of hybrid solar cells—an approach in experiment and simulation

M. Arar, M. Gruber, M. Edler, W. Haas, F. Hofer, N. Bansal, L. X. Reynolds, S. A. Haque, K. Zojer, G. Trimmel, and T. Rath. Nanotechnology, 24 (2013) 484005.

DOI: 10.1088/0957-4484/24/48/484005

Transport parameters in hybrid solar cells

Influence of transport-related material parameters on the I-V characteristic of inorganic-organic hybrid solar cells

B. Stickler, M. Gruber, G. Trimmel, F. Schürrer, and K. Zojer. Organic Electronics, 12 (2011) 1434-1445.

DOI: 10.1016/j.orgel.2011.04.021

Drift diffusion simulation

Simulation of the performance of organic electronic devices based on a two-dimensional drift-diffusion approach

M. Gruber, B. A. Stickler, S. Possanner, K. Zojer, and F. Schurrer. Communications in Applied and Industrial Mathematics, 2 (2011).

DOI: 10.1685/journal.caim.000384

Energy alignment and morphology in hybrid solar cells

Impact of energy alignment and morphology on the efficiency in inorganic-organic hybrid solar cells

M. Gruber, B. Stickler, G. Trimmel, F. Schürrer, and K. Zojer. Organic Electronics, 11 (2010) 1999–2011.

DOI: 10.1016/j.orgel.2010.08.015

Transport
Para-hexaphenyl on mica

Origin of the bimodal island size distribution in ultrathin films of para-hexaphenyl on mica

L. Tumbek, C. Gleichweit, K. Zojer, and A. Winkler. Physical Review B, 86 (2012) 085402.

Schroedinger Poisson Boltzmann system

Schroedinger-Poisson-Boltzmann system applied to the charge carrier transport in strained silicon

G. Toschkoff, G. Ossig, P. Lichtenberger, K. Zojer, and F. Schurrer. (2010).