INT Home | Legals | Data Protection | Sitemap | INT-ra Net | KIT

Welcome to the Institute of Nanotechnology

We conduct fundamental and applied research with a focus on innovation in the fields of nanoscience and nanotechnology. Our scientists collaborate within the institute and with partners around the world across the disciplines of physics, chemistry, and materials science, as well as biology and medicine.


Publication Highlights | News Archive

INT Ececutive Director Prof. Horst Hahn
Prof. Horst Hahn elected NAI Fellow

Our Executive Director received an award from the US National Academy of Inventors (NAI).

NAI press release
Graphene & Co Annual Meeting 2019

110 participants from 15 countries enjoyed an inspiring meeting in Bad Herrenalb / Black Forest.

[Graphene & Co - Annual Meeting 2019]
fqh edge
Topological classification of shot noise on fractional quantum Hall edges

It has been proposed that shot noise in a quantum Hall edge exhibits different types of behavior with varying sample size, depending on the chirality of edge modes.

Phys. Rev. Lett. 123, 137701 (2019)
Quantum superposition of superheavy molecules

Matter-wave interference of molecules consisting of up to 2000 atoms has been demonstrated by means of Talbot-Lau interferometry.

Nat. Phys. 15, 1242 (2019)
energy storage 2
New organic electrode materials for ultrafast electrochemical energy storage

New class of stable organic electrodes based on metal porphyrines has been reported.

Adv. Mater. 31, 1806599 (2019)
Indicator-displacement assay based on cucurbituril in blood serum

In situ detection and quantification of Alzheimer's drug memantine in blood serum have been reported.

Chem. Sci. 10, 6584 (2019)
Six-state molecular revolver on a rigid platform

Reversible transitions between six rotational states of tetraphenylmethane molecules have been induced with an STM tip.

Nanoscale 11, 9015 (2019)
Toward design of novel materials for organic electronics

Predictive simulation methods to complement experimental research in the identification of novel materials for organic electronics have been discussed.

Adv. Mater. 31, 1808256 (2019)
Helmholtz International Fellow Award for Prof. Yuval Gefen

Prof. Yuval Gefen from the Weizmann Institute, nominated by the INT, received a highly prestigious Helmholtz International Fellow Award.

Helmholtz-Gemeinschaft News
Granular aluminium as a material for high-impedance quantum circuits

Fluxonium qubit design based on a granular aluminium superinductor strip, with state-of-the-art coherence times, has attracted international interest.

Nat. Mater. 18, 816 (2019)
Engineered quantum Hall edge at filling factor 2/3 as a line junction

Controlled equilibration in a line junction of two counterpropagating edge modes with different filling factors has been analyzed.

Nat. Commun. 10, 1920 (2019)
Picture of the ARES project group with Prof. Schimmel that won first prize in the VIP+ program of BMBF
Validation Award for "Project ARES"

The transfer project for using Air REtaining Surfaces to lower the friction of ship hulls with the surrounding water, led by the group of Prof. Thomas Schimmel, garnered first place in the VIP+ program of the BMBF. 

Validation Award VIP+
Picture of award ceremony Leibniz prize Prof. Wernsdorfer
Leibniz Award for Prof. Wolfgang Wernsdorfer

The Deutsche Forschungs- gemeinschaft recognized Prof. Wernsdorfer's pioneering work on nanomagnetism and single-molecule magnets. The latter could represent the Qbits of Quantum Information devices.

Leibniz Award for Wolfgang Wernsdorfer
Subband splitting and quantized conductance in a bilayer graphene QPC

Valley splitting in a bilayer graphene quantum point contact in the presence of a magnetic field has been studied.

Phys. Rev. Lett. 121, 257703 (2018)
Shape of 3D-printed microstructures controlled by temperature and light

It has been demonstrated that 3D-printed objects can be made switchable by varying temperature globally or by locally illuminating with focused light.

Nat. Commun. 10, 232 (2019)
Picture of Prof. Martin Wegener
Prof. Martin Wegener elected as new member of acatech

The German National Acedemy of Science and Engineering acatech elected Prof. Martin Wegener as a new member in recognition of his scientific achievements.

acatech announcement
Picture of Prof. Martin Wegener and Prof. Maximilian Fichtner
Excellence Strategy: INT scientists successful

Prof. Martin Wegener succeeded with the cluster of excellence proposal for "3D Matter Made to Order". Prof. Maximilian Fichtner got the nod for "Energy Storage Beyond Lithium". We congratulate both for their resounding success.

Two Clusters of Excellence
Picture of Prof. Herbert Gleiter
Czochralski Award for Prof. Herbert Gleiter

Prof. Herbert Gleiter received the Jan Czochralski Award for his Lifetime Achievements in Material Science at the European MRS Fall Meeting 2018.

Jan Czochralski Award
klein graphene
Tuning anti-Klein to Klein tunneling in bilayer graphene

Continuously tunable Berry phase, controlling quasiparticle tunneling in a Fabry-Pérot interferometer based on bilayer graphene, has been observed.

Phys. Rev. Lett. 121, 127706 (2018)
high entropy
High-entropy oxides for reversible energy storage

Stabilization effect of entropy has been shown to greatly improve the lithium storage capacity retention and the cycling stability of high-entropy oxides.

Nat. Commun. 9, 3400 (2018)
Quasi-solid-state single-atom transistor

Operation of an atomic-scale transistor with high thermal and mechanical stabilities within an aqueous electrolyte has been shown.

Adv. Mater. 30, 1801225 (2018)
Selectively erasable ink for 3D printing

Chemoselectively cleavable photoresists for 3D laser lithography have been demonstrated, allowing for a targeted degradation of printed microstructures.

Nat. Commun. 9, 2788 (2018)
Combinatorial synthesis of macromolecular arrays

Microchannel cantilever spotting has been used for in-situ synthesis of surface-bound macromolecular microarrays.

Adv. Mater. 30, 1801632 (2018)
Logo of the CELEST Collaboration
The Center for Electro- chemical Energy Storage CELEST founded

The Karlsruhe Institute of Technology, the Ulm University and the Centre for Solar Energy and Hydrogen Research Baden-Württemberg strengthen their collaboration.

CELEST Press release
Stabilizing spin spirals and isolated skyrmions

Formation of skyrmions has been demonstrated by means of spin-sensitive STM at low magnetic fields in the absence of strong spin-orbit coupling.

Nat. Commun. 9, 1015 (2018)
Voltage-driven conformational switching in a single-molecular junction

Conformation of a room-temperature two-state molecular switch has been probed with Raman spectroscopy.

J. Am. Chem. Soc. 140, 4835 (2018)
DC Josephson effect in a graphene-based QPC

The effect of a quantum point contact confinement and an external magnetic field on the supercurrent has been demonstrated in a bilayer graphene heterostructure.

Nat. Commun. 9, 1722 (2018)
Templated formation of luminescent virus-like particles

Water-soluble Pt(II) amphiphiles decorated with tetraethylene glycol branches and sulfate groups have been synthesized and probed for their self-assembly properties.

J. Am. Chem. Soc. 140, 2355 (2018)
Quasiparticles in condensed matter systems - a review

Concepts of fractional, Dirac, Majorana, and topologically protected chiral quasiparticles, along with a new concept of critical quasiparticles, have been reviewed.

Rep. Prog. Phys. 81, 032501 (2018)
DPG Prize for superprecision 3D-Printing
Technology Transfer Prize by the German Physical Society for superprecise 3D laser printing

The INT, the Innovation Management at the KIT, and the company Nanoscribe are distinguished by the DPG.

KIT News
Operating quantum states in single magnetic molecules

Grover's quantum algorithm has been implemented using a single nuclear 3/2 spin of a Tb ion in a single molecular magnet transistor.

Phys. Rev. Lett. 119, 187702 (2017)
Defect-tolerant molecular ( Archimedean tiling

A surface-confined multistep reaction allows for the observation of the emergence of complexity through the formation of a defect-tolerant molecular network.

Nat. Chem., Jan 2018
3D mechanical metamaterials with a twist

Elastic chiral mechanical metamaterials showing twists per axial strain as large as 2% have been realized. 

Science 358, 1072 (2017)
Mixing instabilities during shearing of metals

Strategy to reveal physical mechanisms of the morphological evolution upon shearing up to ultrahigh strains has been introduced.

Nat. Commun. 8, 1611 (2017)
On/Off switching of ferromagnetism in manganite supercapacitors

Fully reversible, rapid, voltage-driven switching of ferromagnetism in an ultrathin LaSrMnO film has been demonstrated.

Adv. Mater., Nov 2017
Structure and dynamics of riboswitches in bacteria

Conformational energy landscape of a full-length SAM-I riboswitch has been explored by means of Förster resonant energy transfer.

Nat. Chem. Biol. 13, 1172 (2017)
In-situ manipulation of magnetization in mesoporous LSMO thin films

Large-scale tuning of the magnetic susceptibility and Curie temperature through capacitive charging has been demonstrated.

ACS Appl. Mater. Interfaces 9, 22799 (2017)
Landau-Zener transition in a single-molecule spin transistor

Landau-Zener dynamics of a single-ion magnet has been continuously monitored and theoretically modeled in a spin-transistor geometry.

Phys. Rev. Lett. 118, 257701 (2017)
Sub-50 nm channel vertical field-effect transistors

A printed vertical FET which decouples the channel length from printing resolution has been demonstrated.

Adv. Mater. 29, 1603858 (2017)
Background intensity suppression in fluorescence nanoscopy

Stimulated emission double depletion has been demonstrated as a method to selectively remove artificial background intensity.

Nat. Photon. 11, 163 (2017)
spin valve
Giant magnetoresistance in carbon nanotubes with single-molecule magnets

Gate-controlled supramolecular spin-valve effect has been demonstrated and explained in terms of Fano resonances in Coulomb blockade.

ACS Nano 11, 6868 (2017)
Hybrid supercapacitors for reversible control of magnetism

Fully reversible and robust magnetoelectric coupling has been realized in LaSrMnO/ionic liquid hybrid supercapacitors by exploiting surface electrostatic and electrochemical doping.

Nat. Commun. 8, 15339 (2017)
Prof. Wernsdorfer received a European Research Council Advanced Grant

Prof. Wolfgang Wernsdorfer, research unit chair at the INT, won an ERC Advanced Grant for his research project "Molecular quantum opto-spintronics." / KIT News
Electrically actuated molecular toggle switch

An electrical switch based on a tripodal platform with a cantilever arm and a nitrile group at its end has been demonstrated.

Nat. Commun. 8, 14672 (2017)
Nanotextiles: A weave of polymers

Molecular weaving has been realized via surface-templated epitaxy of crystalline coordination networks.

Nat. Commun. 8, 14422 (2017)
Anomalous Hooke's law in disordered graphene

It has been demonstrated that the stretching of a graphene flake is a nonlinear function of tension, with the scaling of the stiffness obeying a fractal power law governed by static ripples.

2D Materials 4, 011003 (2017)
Prof. Hahn was elected as a Member to the US NAE
Prof. Hahn elected as a member of the US National Academy of Engineering

Prof. Horst Hahn, Director of the INT, was elected a member of the US NAE for his contributions to the science and engineering of nanostructured materials with tailored and tunable properties.

NAE News
Sign reversal of the Hall coefficient in 3D metamaterials

Electrical properties of a p-type semiconductor have been experimentally mimicked by a chainmail-like metamaterial made of an n-type semiconductor.

Phys. Rev. Lett. 118, 016601 (2017)
Evolving quality of frictional contact with graphene

It has been demonstrated, by atomistic simulations, that monolayer graphene exhibits higher friction, which increases with sliding, than multilayer graphene.

Nature 539, 541 (2016)
integrated generation and detection
First quantum photonic circuit with an electrically driven light source

Optical waveguide-integrated generation and detection of nonclassical light have been demonstrated with electrically driven carbon nanotubes.

Nat. Photon. 10, 727 (2016)
3d laser writing
Conductive 3D microstructures via direct laser writing

Laser-written 3D gold-containing microstructures have been fabricated by simultaneous photopolymerization and photoreduction.

Adv. Mater. 28, 3592 (2016)
atomic switch
Atomic scale plasmonic switch

An electrically controlled switch which operates by means of relocation of an individual atom in a plasmonic cavity has been demonstrated.

Nano Lett. 16, 709 (2016)
Wegener 3d printing
Prof. Wegener is awarded Erwin Schrödinger Prize

Prof. Martin Wegener, research unit chair at the INT, receives, together with Profs. M. Bastmeyer and Ch. Barner-Kowollik, Erwin Schrödinger Prize for cell cultivation in a 3D-laserprinted ultrasmall "Petri dish."

Helmholtz-Gemeinschaft News
SF thermoelectric
Thermoelectric currents in SF tunnel junctions in high magnetic fields

Spin-dependent thermoelectric currents have been observed in superconductor-ferromagnet tunnel junctions in high magnetic fields, probing the coupling of spin and heat transport in superconductors.

Phys. Rev. Lett. 116, 097001 (2016)
lipid membrane
Self-limiting assembly of lipid membranes on graphene sensor arrays

Phospholipid membranes of different functionalities have been simultaneously assembled on arrays of graphene surfaces using multi-pen lipid dip-pen nanolithography.

Nanoscale 8, 15147 (2016)
Mechanisms of nanoglass ultrastability

A mechanism has been proposed for the existence of stable amorphous grains and interfacial regions the atomic structure and  internal energy of which differ from those of the melt-quenched glass.

ACS Nano 10, 3241 (2016)
quantum einstein-de haas
Quantum Einstein-de Haas effect

The Einstein–de Haas effect at the quantum level has been demonstrated using a single-molecule magnet attached to a carbon nanotube mechanical nanoresonator.

Nat. Commun. 7, 11443 (2016)
nitrogen-rich carbon
Novel nanocomposites for Li-ion batteries

Nitrogen-rich carbon made by hard templating and atomic-layer deposition has been demonstrated to be a versatile host material for long-life high-performance lithium-based batteries.

ACS Appl. Mater. Interfaces 8, 10274 (2016)
Towards on-chip communication with carbon nanotubes

Electrically driven nanotubes can be forced to emit light with a specific color by integration into a photonic crystal waveguide.

Nat. Photon. 10, 420 (2016)
Maximilian Fichtner and Christian Punckt received a highly competitive EC grant

M. Fichtner (Energy Storage Group) and C. Punckt (NanoMat) won a grant, focused on developing a new class of powerful materials for electrochemical energy storage, within the FET Open Call "Novel ideas for radically new technologies."

NanoMat Projects
printed oxide electronics
Towards room-temperature processing of printed high-performance oxide electronics

Solution-processed high-performance MOSFETs and CMOS inverters have been obtained entirely at room temperature without an additional curing step.

ACS Nano 9, 3075 (2015)
short-channel CN transistor
Carbon nanotubes for high-density short-channel transistors

Best performing short-channel transistors have been built by using highly enriched semiconducting single-wall CNs prepared by combining polymer-wrapping with size-exclusion chromatography.

ACS Nano 10, 1888 (2016)
Prof. Gumbsch elected as a member of the US National Academy of Engineering

Prof. Peter Gumbsch, research unit chair at the INT, was elected a member of the US NAE for his multiscale modeling research in the fields of fracture mechanics and deformation behavior of materials.

Prof. Rockstuhl elected as 2016 Fellow of the Optical Society of America

Prof. Carsten Rockstuhl, research unit chair at the INT, was recently elected as an OSA Fellow for his seminal contributions to the field of theoretical and computational nanophotonics.

OSA News
Large-area polymer-free CNT solar cells

Carbon nanotube / fullerene solar cells have been obtained with record high active area.

Adv. Energy Mater. 2015, 1501345
Gas evolution in operating lithium-ion batteries

Gassing in battery pouch cells has been directly observed using neutron imaging, with special emphasis put on the high-voltage LiNi0.5Mn1.5O4/graphite system.

Sci. Rep. 5, 15627 (2015)
Prof. Gleiter is awarded a Cothenius Medal

Prof. Herbert Gleiter, one of the founders of the INT, receives a Cothenius Medal from the Leopoldina.

Leopoldina News
Chemie steuert Magnetismus
Intercalation-Driven Reversible Control of Magnetism in Bulk Ferromagnets

An extension in magnetoelectric effects is proposed to include reversible chemistry-controlled magnetization variations.

KIT Press Release in German
Scheme of L-DPN
Modelling of L-DPN:

"A diffusive ink transport model for lipid dip-pen nanolithography" by Urtizberea and Hirtz in Nanoscale 7 (2015) 15618-15634

Integrated all-photonic non-volatile multi-level memory
Integrated all-photonic non-volatile memory

Robust, non-volatile, all-photonic integrated memory chips based on phase-change materials are demonstrated at switching speeds approaching 1GHz.

KIT Press Release
Self-Assembly of a Giant Tetrahedral 3 d–4 f Single-Molecule Magnet within a Polyoxometalate System
Self-Assembly of a Giant Single-Molecule Magnet

We synthesized a giant tetrahedral heterometallic polyoxometalate (POM)-based single molecule magnet which contains the largest number of 4f ions and is the first to incorporate two different 3d–4f and 4f coordination cluster assemblies within same POM framework.

Angewandte Chemie, 22 Sep 2015
Prof. Fichtner appointed as director of Helmholtz Institute Ulm

Prof. Maximilian Fichtner, leader of the research group “Energy Storage Systems,” is succeeding Prof. Horst Hahn as executive director of our partner institute, the Helmholtz-Institut Ulm.

Helmholtz Institute Ulm news
Partial Figure 2: Bennett resonance of a Na cylindrical nanowire of radius R=2 nm
Self-consistent hydrodynamic description of metals in nanoplasmonics

To properly describe the properties of metals used in nanoplasmonic devices in truly nanometric systems, we develop and apply for the first time a self-consistent hydrodynamic description.

Nature Communications 6, May 2015