Markus Döblinger
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View article: A Defect-Free Vertical-Cavity GaAs-Based Nanowire Laser on Silicon Emitting at the Telecom O-Band
A Defect-Free Vertical-Cavity GaAs-Based Nanowire Laser on Silicon Emitting at the Telecom O-Band Open
Telecom-band vertical-cavity nanowire (NW) lasers are promising integrated light sources for silicon (Si) photonics applications but have remained elusive within the important GaAs materials system. Here, we demonstrate the direct site-sel…
View article: Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion
Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion Open
Lanthanide coordination polymers (Ln‐CPs), an intriguing type of near‐infrared (NIR) emitting materials, hold significant potential as fast‐response platforms in light‐emitting devices. The controlled crystallization of a series of Ln‐DHBQ…
View article: Combinatorial Design of Benzodithiophene-Benzothiadiazole Building Blocks for Ultralarge Pore Optoelectronically Tunable Covalent Organic Frameworks
Combinatorial Design of Benzodithiophene-Benzothiadiazole Building Blocks for Ultralarge Pore Optoelectronically Tunable Covalent Organic Frameworks Open
While covalent organic frameworks (COFs) have attracted enormous attention in diverse fields due to their large molecular design space, tuning their optoelectronic properties is challenging due to complex synthetic pathways. Herein we esta…
View article: Highly Crystalline and Oriented Thin Films of Fully Conjugated 3D‐Covalent Organic Frameworks
Highly Crystalline and Oriented Thin Films of Fully Conjugated 3D‐Covalent Organic Frameworks Open
Fully conjugated 3D covalent organic frameworks (COFs) are a newly emerged class of materials that expands reticular chemistry to extended electron delocalization for optoelectronic applications. To overcome the limitations of sp 3 ‐connec…
View article: Highly Crystalline and Oriented Thin Films of Fully Conjugated 3D‐Covalent Organic Frameworks
Highly Crystalline and Oriented Thin Films of Fully Conjugated 3D‐Covalent Organic Frameworks Open
Fully conjugated 3D covalent organic frameworks (COFs) are a newly emerged class of materials that expands reticular chemistry to extended electron delocalization for optoelectronic applications. To overcome the limitations of sp 3 ‐connec…
View article: Origin of performance enhancement of superconducting nanowire single-photon detectors by He-ion irradiation
Origin of performance enhancement of superconducting nanowire single-photon detectors by He-ion irradiation Open
Superconducting nanowire single-photon detectors (SNSPDs) are indispensable in fields such as quantum science and technology, astronomy, and biomedical imaging, where high detection efficiency, low dark count rates and high timing accuracy…
View article: Competing mechanisms of dominant radiative and Auger recombination in hot carrier generation in III-V semiconductor nanowires
Competing mechanisms of dominant radiative and Auger recombination in hot carrier generation in III-V semiconductor nanowires Open
One-dimensional structures such as nanowires (NWs) show great promise in tailoring the rates of hot carrier thermalization in semiconductors with important implications for the design of efficient hot carrier absorbers. However, fabricatio…
View article: High-Throughput Spectroscopy of Geometry-Tunable Arrays of Axial InGaAs Nanowire Heterostructures with Twin-Induced Carrier Confinement
High-Throughput Spectroscopy of Geometry-Tunable Arrays of Axial InGaAs Nanowire Heterostructures with Twin-Induced Carrier Confinement Open
Predicting the optical properties of large-scale ensembles of luminescent nanowire arrays that host active quantum heterostructures is of paramount interest for on-chip integrated photonic and quantum photonic devices. However, this has re…
View article: Chemical Epitaxy of Iridium Oxide on Tin Oxide Enhances Stability of Supported OER Catalyst
Chemical Epitaxy of Iridium Oxide on Tin Oxide Enhances Stability of Supported OER Catalyst Open
Significantly reducing the iridium content in oxygen evolution reaction (OER) catalysts while maintaining high electrocatalytic activity and stability is a key priority in the development of large‐scale proton exchange membrane (PEM) elect…
View article: Low-threshold single ternary GaAsSb nanowire lasers emitting at silicon transparent wavelengths
Low-threshold single ternary GaAsSb nanowire lasers emitting at silicon transparent wavelengths Open
Conventional binary III–V nanowire (NW) lasers face substantial challenges in tuning their lasing emission to silicon transparent wavelengths and require complex quantum heterostructure designs for realizing on-chip integrated nanolasers. …
View article: Axial Growth Characteristics of Optically Active InGaAs Nanowire Heterostructures for Integrated Nanophotonic Devices
Axial Growth Characteristics of Optically Active InGaAs Nanowire Heterostructures for Integrated Nanophotonic Devices Open
III-V semiconductor nanowire (NW) heterostructures with axial InGaAs active regions hold large potential for diverse on-chip device applications, including site-selectively integrated quantum light sources, NW lasers with high material gai…
View article: Strong Dimensional and Structural Dependencies of Hot Carrier Effects in InGaAs Nanowires: Implications for Photovoltaic Solar Cells
Strong Dimensional and Structural Dependencies of Hot Carrier Effects in InGaAs Nanowires: Implications for Photovoltaic Solar Cells Open
III-V nanowire structures are among the promising material systems with applications in hot carrier solar cells. These nanostructures can meet the requirements for such photovoltaic devices, i.e., the suppression of thermalization loss, an…
View article: Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma
Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma Open
View article: An electrically conducting 3D coronene-based metal–organic framework
An electrically conducting 3D coronene-based metal–organic framework Open
A novel electrically conducting cubic mesoporous metal–organic framework (MOF), consisting of hexahydroxy- cata -hexabenzocoronene ( c -HBC) and Fe III ions is presented.
View article: Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma
Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma Open
File contains source data for all magnetic, calorimetric, Raman spectroscopy and viscosity analyses performed. Data are divided by tabs accordingly within the file. For details of the methods and context please see the original paper.
View article: CCDC 2237540: Experimental Crystal Structure Determination
CCDC 2237540: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Large Tolerance of Lasing Properties to Impurity Defects in GaAs(Sb)‐AlGaAs Core‐Shell Nanowire Lasers
Large Tolerance of Lasing Properties to Impurity Defects in GaAs(Sb)‐AlGaAs Core‐Shell Nanowire Lasers Open
GaAs‐AlGaAs based nanowire (NW) lasers hold great potential for on‐chip photonic applications, where lasing metrics have steadily improved over the years by optimizing resonator design and surface passivation methods. The factor that will …
View article: Sb-saturated high-temperature growth of extended, self-catalyzed GaAsSb nanowires on silicon with high quality
Sb-saturated high-temperature growth of extended, self-catalyzed GaAsSb nanowires on silicon with high quality Open
Ternary GaAsSb nanowires (NW) are key materials for integrated high-speed photonic applications on silicon (Si), where homogeneous, high aspect-ratio dimensions and high-quality properties for controlled absorption, mode confinement and wa…
View article: A Collaboration to Create Functional Frameworks from Multiple Components
A Collaboration to Create Functional Frameworks from Multiple Components Open
This invited Team Profile was created by the teams of Dana D. Medina, LMU Munich, Germany ; Laura M. Salonen, CINBIO, University of Vigo, Spain ; Tim Kowalczyk, Western Washington University, Bellingham, USA ; João Rocha, CICECO, Universit…
View article: Study on the properties of wafer-scale grown MoS<sub>2</sub> deposited via thermally induced chemical vapor deposition with Mo(CO)<sub>6</sub> and H<sub>2</sub>S precursors
Study on the properties of wafer-scale grown MoS<sub>2</sub> deposited via thermally induced chemical vapor deposition with Mo(CO)<sub>6</sub> and H<sub>2</sub>S precursors Open
To realize profitable applications with 2D-materials the transition from research scale to microelectronic fabrication methods is needed. This means the use of equipment for larger substrates and assessment of the process flows. In this st…
View article: Fine‐Tuning Blue‐Emitting Halide Perovskite Nanocrystals
Fine‐Tuning Blue‐Emitting Halide Perovskite Nanocrystals Open
Lead halide perovskite nanocrystals (NCs) with narrow, bright emission in the visible range are promising candidates for light‐emitting applications. Near‐unity quantum yields have been realized for green and red‐emitting perovskites, but …
View article: Iron-Gallic Acid Peptide Nanoparticles as a Versatile Platform for Cellular Delivery with Synergistic ROS Enhancement Effect
Iron-Gallic Acid Peptide Nanoparticles as a Versatile Platform for Cellular Delivery with Synergistic ROS Enhancement Effect Open
Cytosolic delivery of peptides is of great interest owing to their biological functions, which could be utilized for therapeutic applications. However, their susceptibility to enzymatic degradation and multiple cellular barriers generally …
View article: Building Blocks and COFs Formed <i>in Concert</i>—Three‐Component Synthesis of Pyrene‐Fused Azaacene Covalent Organic Framework in the Bulk and as Films
Building Blocks and COFs Formed <i>in Concert</i>—Three‐Component Synthesis of Pyrene‐Fused Azaacene Covalent Organic Framework in the Bulk and as Films Open
A three‐component synthesis methodology is described for the formation of covalent organic frameworks (COFs) containing extended aromatics. Notably, this approach enables synthesis of the building blocks and COF along parallel reaction lan…
View article: Building Blocks and COFs Formed <i>in Concert</i>—Three‐Component Synthesis of Pyrene‐Fused Azaacene Covalent Organic Framework in the Bulk and as Films
Building Blocks and COFs Formed <i>in Concert</i>—Three‐Component Synthesis of Pyrene‐Fused Azaacene Covalent Organic Framework in the Bulk and as Films Open
A three‐component synthesis methodology is described for the formation of covalent organic frameworks (COFs) containing extended aromatics. Notably, this approach enables synthesis of the building blocks and COF along parallel reaction lan…
View article: Sb‐Mediated Tuning of Growth‐ and Exciton Dynamics in Entirely Catalyst‐Free GaAsSb Nanowires
Sb‐Mediated Tuning of Growth‐ and Exciton Dynamics in Entirely Catalyst‐Free GaAsSb Nanowires Open
Vapor‐liquid‐solid (VLS) growth is the mainstream method in realizing advanced semiconductor nanowires (NWs), as widely applied to many III‐V compounds. It is exclusively explored also for antimony (Sb) compounds, such as the relevant GaAs…
View article: Role of twin defects on growth dynamics and size distribution of undoped and Si-doped GaAs nanowires by selective area epitaxy
Role of twin defects on growth dynamics and size distribution of undoped and Si-doped GaAs nanowires by selective area epitaxy Open
We report the effects of Si doping on the growth dynamics and size distribution of entirely catalyst-free GaAs nanowire (NW) arrays grown by selective area molecular beam epitaxy on SiO2-masked Si (111) substrates. Surprising improvements …
View article: Enhanced growth and properties of non-catalytic GaAs nanowires via Sb surfactant effects
Enhanced growth and properties of non-catalytic GaAs nanowires via Sb surfactant effects Open
We report the effects of antimony (Sb) surfactant on the growth and correlated structural and optical properties of non-catalytic GaAs nanowires (NW) grown by selective area epitaxy on silicon. Strong enhancements in the axial growth with …
View article: Tailoring Plasmonic Bimetallic Nanocatalysts Toward Sunlight‐Driven H<sub>2</sub> Production
Tailoring Plasmonic Bimetallic Nanocatalysts Toward Sunlight‐Driven H<sub>2</sub> Production Open
Hybrid nanoparticles combining plasmonic and catalytic components have recently gained interest for their potential use in sunlight‐to‐chemical energy conversion. However, a deep understanding of the structure–performance that maximizes th…
View article: Interfacial Manganese‐Doping in CsPbBr<sub>3</sub> Nanoplatelets by Employing a Molecular Shuttle
Interfacial Manganese‐Doping in CsPbBr<sub>3</sub> Nanoplatelets by Employing a Molecular Shuttle Open
Mn‐doping in cesium lead halide perovskite nanoplatelets (NPls) is of particular importance where strong quantum confinement plays a significant role towards the exciton–dopant coupling. In this work, we report an immiscible bi‐phasic stra…
View article: Interfacial Manganese‐Doping in CsPbBr<sub>3</sub> Nanoplatelets by Employing a Molecular Shuttle
Interfacial Manganese‐Doping in CsPbBr<sub>3</sub> Nanoplatelets by Employing a Molecular Shuttle Open
Mn‐doping in cesium lead halide perovskite nanoplatelets (NPls) is of particular importance where strong quantum confinement plays a significant role towards the exciton–dopant coupling. In this work, we report an immiscible bi‐phasic stra…