We explore innovative 2D materials

Theoretical Chemistry

The advances in nanotechnology have pushed materials science to the point where structural control at atomic precision is becoming feasible. This appears to mark the ultimate reachable limit for the atomistic design of materials with predestined properties. Twisting van der Waals homo- and heterolayers of 2D crystals against each other results in moiré structures and alternation of electronic properties of these materials. This is commonly referred to as twistronics. Existence of relation between the twist angle and the electronic properties has been predicted theoretically and experimentally.

In the Theoretical Chemistry group, we explore innovative materials, with a particular emphasis on two-dimensional systems, for use in energy storage and generation, catalysis, isotope separation, and nano(opto)electronic devices. To achieve this, we utilize a range of quantum-mechanical techniques to analyze the structural, electronic, vibronic, and optical characteristics of materials.

PD Dr. Agnieszka Beata Kuc

PD Dr Agnieszka Beata Kuc

CASUS Research Team Leader

Contact

+49 3581 375 23 104

Center for Advanced Systems Understanding

Conrad-Schiedt-Straße 20

D-02826 Görlitz

Kalipada Koner, Kaustav Das, Rajendra Prasad Paitandi, Rohan Mahapatra, Abhradeep Sarkar, Adhra Sury, Yun Hee Koo, Yingying Zhang, Thomas Heine, Agnieszka Kuc, Pramod P. Pillai, Shu Seki, C. Malla Reddy, Rahul Banerjee - Journal of the American Chemical Society, Published March 10, 2025

Two-dimensional organic materials are mainly constructed by using orthogonal anisotropic connectivity of covalent bonding and π–π stacking. The noncovalent connectivity between building blocks is presumed to be too delicate to stabilize the two-dimensional (2D) layers. Contrary to this assumption, we constructed graphite-like 2D layered material by utilizing pure noncovalent connectivity, i.e., weak intermolecular and π–π interaction via a molecular Tetris strategy…

Dr. Zhiyong Wang, Dr. Hio-Ieng Un, Tsai-Jung Liu, Dr. Baokun Liang, Dr. Miroslav Polozij, Dr. Mike Hambsch, Jonas F. Pöhls, Prof. R. Thomas Weitz, Prof. Stefan C. B. Mannsfeld, Prof. Ute Kaiser, Prof. Thomas Heine, Prof. Henning Sirringhaus, Prof. Xinliang Feng, Prof. Renhao Dong - Angew. Chem. Int. Ed. 2025, e202423341

Electrically conductive coordination polymers (ECCPs), particularly those incorporating benzenehexathiol (BHT) ligands, are emerging as a distinctive class of electronic materials with tunable semiconducting and metallic properties. However, the exploration of novel ECCPs with low-symmetry structures and electrical anisotropy remains under development…

Tsai-Jung Liu, Florian M. Arnold, Alireza Ghasemifard, Qing-Long Liu, Dorothea Golze, Agnieszka Kuc, Thomas Heine - hys. Rev. Materials 9, 014203 – Published 30 January, 2025

With advanced synthetic techniques, a wide variety of well-defined graphene nanoribbons (GNRs) can be produced with atomic precision. Hence, finding the relation between their structures and properties becomes important for the rational design of GNRs. In this work, we explore the complete chemical space of gulf-edged zigzag graphene nanoribbons (ZGNR-Gs)…

Dr. Tian Luo, Dr. Henrik S. Jeppesen, Dr. Alexander Schoekel, Nadine Bönisch, Prof. Fei Xu, Rong Zhuang, Dr. Qiang Huang, Dr. Irena Senkovska, Dr. Volodymyr Bon, Prof. Thomas Heine, Dr. Agnieszka Kuc, Prof. Stefan Kaskel - Angew. Chem. Int. Ed. 2025, e202422776

The catalytic potential of flexible metal–organic frameworks (MOFs) remains underexplored, particularly in liquid-phase reactions. This study employs MIL-53(Cr), a prototypical “breathing” MOF capable of structural adaptation via pore size modulation, as a photocatalyst for the dehalogenation of aryl halides…

F. M. Arnold, A. Ghasemifard, A. Kuc, T. Heine - Mater. Today 73 (2024) 96-104

The advances in nanotechnology have pushed materials science to the point where structural control at atomic precision is becoming feasible. This appears to mark the ultimate reachable limit for the atomistic design of materials with predestined properties, which are defined by chemical composition and bonding…

I. Eren, Y. An, A. Kuc - Adv. Mater. Interfaces 11 (2024) 2300798

Hydrogen is a crucial source of green energy and is extensively studied for its potential usage in fuel cells. The advent of 2D crystals (2DCs) has taken hydrogen research to new heights, enabling it to tunnel through layers of 2DCs or be transported within voids between the layers, as demonstrated in recent experiments by Geim’s group…

R. Kempt, A. Kuc, T. Brumme, T. Heine - Small Struct. 5 (2024) 2300222

PtSe2 is a promising 2D material for nanoelectromechanical sensing and photodetection in the infrared regime. One of its most compelling features is the facile synthesis at temperatures below 500 °C, which is compatible with current back-end-of-line semiconductor processing…

M. Borrelli, Y. An, C. J. Querebillo, A. Morag, C. Neumann, A. Turchanin, H. Sun, A. Kuc, I. Weidinger, X. Feng -ChemSusChem 17 (2024)

Due to the drastic required thermodynamical requirements, a photoelectrode material that can function as both a photocathode and a photoanode remains elusive. In this work, we demonstrate for the first time that, under simulated solar light and without co-catalysts, donor-acceptor conjugated acetylenic polymers (CAPs) exhibit both impressive oxygen evolution (OER) and hydrogen evolution (HER) photocurrents in alkaline and neutral medium, respectively…

Team members

Dr. Dario Calvani

Postdoctoral Researcher

Sai Ram Kuchana

PhD Candidate

Ismail Eren

PhD Candidate

Beatriz Costa Arnold

PhD Candidate

Umm-e-Hani

PhD Candidate

Johannes Günzl

PhD Candidate

Dr. Miroslav Polozij

Postdoctoral Researcher