Andreas Hirsch
YOU?
Author Swipe
View article: Effect of yield locus exponent on draw-in prediction during deep drawing of commercially pure titanium
Effect of yield locus exponent on draw-in prediction during deep drawing of commercially pure titanium Open
The Yld2000-2D yield locus is widely employed to model anisotropic plasticity in sheet metal forming. Its exponent, a , critically influences the shape of the yield surface and is typically assigned fixed values based on crystal structure–…
View article: Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence
Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence Open
Creating well‐defined and spatially resolved fluorescent graphene‐dye hybrid structures has long been a challenge, particularly in maintaining the dye's emission properties and preventing fluorescence quenching. A successful strategy is pr…
View article: Advancing Bidirectional Photoswitching of Norbornadienes: Exclusively Light‐Induced Interconversion of <i>Imide</i> ‐ and <i>Ortho</i> ‐Connected Norbornadiene‐Perylene Diimide Hybrids
Advancing Bidirectional Photoswitching of Norbornadienes: Exclusively Light‐Induced Interconversion of <i>Imide</i> ‐ and <i>Ortho</i> ‐Connected Norbornadiene‐Perylene Diimide Hybrids Open
The norbornadiene/quadricyclane (NBD/QC) photoswitch is a promising candidate for molecular solar energy storage. Isomerization to the energy‐storing, metastable QC occurs upon UV light irradiation, while the back‐switching can be triggere…
View article: Spatially Resolved 2D Laser Writing on Graphene Using Diazonium Salts
Spatially Resolved 2D Laser Writing on Graphene Using Diazonium Salts Open
We present the first investigation of precise laser‐guided patterning, functionalization, defunctionalization, and refunctionalization of single‐layer graphene (SLG) with three different aryl diazonium salts. Using scanning Raman microscop…
View article: Laser‐Initiated Covalent Functionalization of Graphene Using Perfluorophenylazides with Local Addend‐Binding Control
Laser‐Initiated Covalent Functionalization of Graphene Using Perfluorophenylazides with Local Addend‐Binding Control Open
This study investigates the laser‐activated covalent functionalization of graphene using methyl‐4‐azidotetrafluorobenzoate (PFPA‐CO 2 Me) as heterobifunctional model compound. By introducing perfluorophenyl azides to the portfolio of suita…
View article: Laser‐Induced Covalent Defunctionalization of Graphene — Precise Patterning and Site‐Selective Removal of Functional Groups
Laser‐Induced Covalent Defunctionalization of Graphene — Precise Patterning and Site‐Selective Removal of Functional Groups Open
In this study, for the first time, site‐selective defunctionalization concepts for structuring and reusing covalently patterned monolayer graphene are reported. Using a laser‐activated precursor deposition approach with dibenzoyl peroxide …
View article: Tuning Electrocatalytic Energy Release in Norbornadiene Based Molecular Solar Thermal Systems Through Substituent Effects
Tuning Electrocatalytic Energy Release in Norbornadiene Based Molecular Solar Thermal Systems Through Substituent Effects Open
Molecular solar thermal (MOST) systems, such as the norbornadiene/quadricyclane (NBD/QC) pair, combine solar energy conversion, storage, and release in a simple one‐molecule process. The energy‐releasing reaction QC to NBD can be controlle…
View article: Synthesis and Self‐Assembly of a Discotic Oligo‐Carboxylate <i>Tetra‐</i>Porphyrin‐Perylenebisimide Amphiphile
Synthesis and Self‐Assembly of a Discotic Oligo‐Carboxylate <i>Tetra‐</i>Porphyrin‐Perylenebisimide Amphiphile Open
We report the synthesis of an amphiphilic tetra ‐porphyrin perylenebisimide (PBI) conjugate via four‐fold Suzuki cross‐coupling at the PBI ortho‐ position. Oligo‐carboxylate Newkome‐type G1 dendrons attached at the porphyrin periphery serv…
View article: A novel CoF3-mediated fluorination approach toward crystalline perthiolated coronenes
A novel CoF3-mediated fluorination approach toward crystalline perthiolated coronenes Open
View article: Multizustands‐Photoschalter mit niedrigem Molekulargewicht auf der Basis von einfachen Norbornadien‐Triazin Gerüsten
Multizustands‐Photoschalter mit niedrigem Molekulargewicht auf der Basis von einfachen Norbornadien‐Triazin Gerüsten Open
Kurzzusammenfassung Wir haben eine Serie von einfachen Norbornadien (NBD)‐Triazin‐Strukturen als Multizustands‐Photoschalter mit einer unvergleichlich hohen Informationsspeicherdichte entwickelt und untersucht. Einfachere Mono‐NBDs dienen …
View article: Low Molecular Weight Multistate Photoswitches Based on Simple Norbornadiene‐Triazine Scaffolds
Low Molecular Weight Multistate Photoswitches Based on Simple Norbornadiene‐Triazine Scaffolds Open
We have synthesized and characterized a series of simple norbornadiene(NBD)‐triazine architectures, including multistate photoswitches with unprecedentedly high information storage densities. The simple mono‐NBDs served as suitable model s…
View article: Investigation of the Degree of Functionalization and Colloidal Stability of <i>Shell‐by‐Shell</i> Functionalized TiO<sub>2</sub> Nanoparticles as a Function of Different Phosphonic Acid Chain Lengths
Investigation of the Degree of Functionalization and Colloidal Stability of <i>Shell‐by‐Shell</i> Functionalized TiO<sub>2</sub> Nanoparticles as a Function of Different Phosphonic Acid Chain Lengths Open
In this work, a series of Shell‐by‐Shell ( SbS )‐functionalized colloidal systems consisting of 6 nm TiO 2 anatase nanoparticles (NPs), one of the phosphonic acids (PAs) propylphosphonic acid (PAC 3 ), hexylphosphonic acid (PAC 6 ), dodecy…
View article: Patterned Assembly of Transition Metal Dichalcogenide/Graphene Heterostructures via Direct Laser Writing
Patterned Assembly of Transition Metal Dichalcogenide/Graphene Heterostructures via Direct Laser Writing Open
Connecting two‐dimensional (2D) material layers via interface linkers represents a new avenue for fabricating 2D heterostructures. Utilizing light to remotely modulate this interface function allows for seamless assembly and patterning in …
View article: Benzonitrile-driven discharge of potassium-intercalated carbon allotropes
Benzonitrile-driven discharge of potassium-intercalated carbon allotropes Open
View article: Tailorable Nanoparticles for Magnetic Water Cleaning of Polychlorinated Biphenyls
Tailorable Nanoparticles for Magnetic Water Cleaning of Polychlorinated Biphenyls Open
Anthropogenic persistent organic pollutants pose a pressing threat to the environment and human health. They can be found in water bodies all around the world at low but hazardous concentrations. Typical representatives of this contaminant…
View article: Towards precision controlled 2D functional group patterning of graphene via laser writing
Towards precision controlled 2D functional group patterning of graphene via laser writing Open
View article: Synthesis and photoinduced switching properties of C<sub>7</sub>-heteroatom containing push–pull norbornadiene derivatives
Synthesis and photoinduced switching properties of C<sub>7</sub>-heteroatom containing push–pull norbornadiene derivatives Open
We report the synthesis and characterization of heteroatom-incorporated norbornadiene (NBD) derivatives. Push–pull substitution on the 2 and 3 position as well as introduction of oxygen or nitrogen at position 7 of the NBD scaffold have le…
View article: Synthesis and Aggregation of Amphiphilic Porphyrin‐Perylenebisimide Dyads
Synthesis and Aggregation of Amphiphilic Porphyrin‐Perylenebisimide Dyads Open
We report the straightforward synthesis of a family of amphiphilic zinc‐porphyrin‐perylenebisimide (PBI) dyads containing sterically demanding substituents at the porphyrin meso‐ position, as well as at the PBI bay‐position. The hydrophili…
View article: Chemical Vapor Deposition Strategy of Fe‐N‐C Nanotubes for the Oxygen Evolution Reaction
Chemical Vapor Deposition Strategy of Fe‐N‐C Nanotubes for the Oxygen Evolution Reaction Open
The conversion of metal‐nitrogen‐carbon (M‐N‐C) nanoparticles derived from conventional metal‐organic frameworks (MOFs) into self‐supporting and well‐defined metal‐nitrogen‐carbon (M‐N‐C) superstructures is essential for various functional…
View article: Covalent Patterned Functionalization of Graphene
Covalent Patterned Functionalization of Graphene Open
View article: Tailorable nanoparticles for magnetic water cleaning of polychlorinated biphenyls (PCBs)
Tailorable nanoparticles for magnetic water cleaning of polychlorinated biphenyls (PCBs) Open
Anthropogenic persistent organic pollutants pose a pressing threat to the environment and human health. They can be found in water bodies all around the world at low but hazardous concentrations. Typical representatives of this contaminant…
View article: A synthetic methodology toward π-extended porphyrin-rylenediimide conjugates
A synthetic methodology toward π-extended porphyrin-rylenediimide conjugates Open
A straightforward synthetic route for the preparation of functionalized β- meso -fused porphyrins, which are then connected to rylendiimides is demonstrated. The donor–acceptor-type conjugates show features of panchromaticity and small ene…
View article: A Novel Cof3-Mediated Fluorination Approach Toward Crystalline Perthiolated Coronenes
A Novel Cof3-Mediated Fluorination Approach Toward Crystalline Perthiolated Coronenes Open
View article: Moiré Lattice of Twisted Bilayer Graphene as Template for Non‐Covalent Functionalization
Moiré Lattice of Twisted Bilayer Graphene as Template for Non‐Covalent Functionalization Open
We present a novel approach to achieve spatial variations in the degree of non‐covalent functionalization of twisted bilayer graphene (tBLG). The tBLG with twist angles varying between ~5° and 7° was non‐covalently functionalized with 1,4,…
View article: Triskelion‐Shaped Hexabenzocoronenes: Synthesis and Characterization of Tris‐Substituted HBC Derivatives
Triskelion‐Shaped Hexabenzocoronenes: Synthesis and Characterization of Tris‐Substituted HBC Derivatives Open
The synthesis of unprecedented triskelion‐shaped hexa‐ peri ‐hexabenzocoronenes with C 3 , C 3h or D 3h symmertry is reported. We present a new, five step synthetic access to tris‐iodinated HBC derivatives carrying different solubilizing m…
View article: Moiré Lattice of Twisted Bilayer Graphene as Template for Non‐Covalent Functionalization
Moiré Lattice of Twisted Bilayer Graphene as Template for Non‐Covalent Functionalization Open
We present a novel approach to achieve spatial variations in the degree of non‐covalent functionalization of twisted bilayer graphene (tBLG). The tBLG with twist angles varying between ~5° and 7° was non‐covalently functionalized with 1,4,…
View article: <i>N</i>‐Heterocycle‐Substituted Hexa‐<i>peri</i>‐Hexabenzocoronenes with Windmill Architectures
<i>N</i>‐Heterocycle‐Substituted Hexa‐<i>peri</i>‐Hexabenzocoronenes with Windmill Architectures Open
We describe the synthesis and computational investigation of N ‐heterocycle‐substituted hexa‐ peri ‐hexabenzocoronenes (HBCs). Following our method for the preparation of thioether‐substituted HBCs, we prepared pyrrole‐, indole‐, carbazole…
View article: Laser‐Driven Modular Precision Chemistry of Graphene Using λ<sup>3</sup>‐Iodanes
Laser‐Driven Modular Precision Chemistry of Graphene Using λ<sup>3</sup>‐Iodanes Open
The emerging laser writing represents an efficient and promising strategy for covalent two dimensional (2D)‐patterning of graphene yet remains a challenging task due to the lack of applicable reagents. Here, we report a versatile approach …
View article: Shell-by-Shell functionalized nanoparticles as radiosensitizers and radioprotectors in radiation therapy of cancer cells and tumor spheroids
Shell-by-Shell functionalized nanoparticles as radiosensitizers and radioprotectors in radiation therapy of cancer cells and tumor spheroids Open
Shell-by-Shell (SbS)-functionalized NPs can be tailor-made by combining a metal oxide NP core of choice with any desired phosphonic acids and amphiphiles as 1st or 2nd ligand shell building blocks. The complementary composition of such hig…
View article: Investigations of Crucial Factors for the Non‐Covalent Functionalization of Black Phosphorus (BP) using Perylene Diimide Derivatives for the Passivation of BP Nanosheets
Investigations of Crucial Factors for the Non‐Covalent Functionalization of Black Phosphorus (BP) using Perylene Diimide Derivatives for the Passivation of BP Nanosheets Open
The non‐covalent functionalization of black phosphorus (BP) was studied with a scope of ten tailor‐made perylene diimides (PDIs). A combination of UV/Vis‐, fluorescence‐, as well as Raman spectroscopy and atomic force microscopy was used t…