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76021 Karlsruhe
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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

Portrait picture of Wolfgang Wernsdorfer
Leibniz Award for Prof. Wolfgang Wernsdorfer

The Deutsche Forschungs- Gemeinschaft (DFG) recognized Prof. Wernsdorfers pioneering work on Nanomagnetism and Single Molecule Magnets. The latter could represent the Qbits of future Quantum Information devices.

Leibniz-Preis für Wolfgang Wernsdorfer
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)
transistor_gel
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)
 
selective_erasing
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)
spotting
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
skyrmion
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)
 
switch_raman
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)
graphene_qpc
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)
 
vlp
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)
pw
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
grover
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)
 
3.4.6.4
Defect-tolerant molecular (3.4.6.4) 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
twist
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)
 
instab_shearing
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)
ferromag_switch
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
 
riboschalter
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)
magnet_tuning
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
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)
vFET
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)
 
stedd
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)
 
supercapacitor
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)
wernsdorfer_2
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."

research-in-germany.org / KIT News
 
switch
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)
textile
Nanotextiles: A weave of polymers

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

Nat. Commun. 8, 14422 (2017)
 
spider
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
 
chainmail
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)
graphene_friction
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)
 
nanoglass
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)
NPhoton
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)
 
LiRich
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)
gumbsch_NAE
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.

BMBF News
 
Rockstuhl_OSA
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
cnt_solar_cells
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
 
lithium-ion
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)
Cothenius
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

More
 
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
 
hiu_fichtner
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