Birgit Esser
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View article: Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte
Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte Open
Electrolytes critically influence the electrochemical performance and cycle life of lithium ion batteries (LIBs). This holds especially for organic redox polymer‐based batteries, such as those employing poly(3‐vinyl‐ N ‐methylphenoxazine) …
View article: Exploring the World of Double Nanohoops
Exploring the World of Double Nanohoops Open
Conjugated nanohoops have become highly relevant compounds based on their unique conjugation, structural, optoelectronic, and morphological properties. Recent synthetic efforts have progressed to access more elaborate structures, incorpora…
View article: Low‐Carbon Poly(3‐vinyl‐ <i>N</i> ‐methylphenothiazine) Electrode Formulation Using PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)) for Lithium‐Based Energy Storage
Low‐Carbon Poly(3‐vinyl‐ <i>N</i> ‐methylphenothiazine) Electrode Formulation Using PEDOT:PSS (poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate)) for Lithium‐Based Energy Storage Open
Metal‐free organic electrode materials are of increasing interest due to their environmental compatibility, natural abundance, and structural versatility. Poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is an intrinsic…
View article: Contact Electrification via Redox‐Active Molecules
Contact Electrification via Redox‐Active Molecules Open
Contact electrification, as the transfer of charge upon the contact of two (dis)similar materials, is strongly influenced by surface chemistry, which governs the efficiency of charge separation. For harvesting electrical energy from mechan…
View article: Contact Electrification via Redox‐Active Molecules
Contact Electrification via Redox‐Active Molecules Open
Contact electrification, as the transfer of charge upon the contact of two (dis)similar materials, is strongly influenced by surface chemistry, which governs the efficiency of charge separation. For harvesting electrical energy from mechan…
View article: Chiral Nanohoops as an Efficient Spin Polarization System
Chiral Nanohoops as an Efficient Spin Polarization System Open
A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient conditions while maintaining good electrical conductivity. Chiral conjugated nanohoops, characterized by their curved…
View article: Size and Geometry Impact the Chiroptical Properties of Double Nanohoops
Size and Geometry Impact the Chiroptical Properties of Double Nanohoops Open
Conjugated nanohoops have attracted much attention in recent years due to their unique optoelectronic properties. A more complex geometry, in which two nanohoops are covalently linked to form a so-called double nanohoop, can have a signifi…
View article: Enhanced Solubility and Deprotection of Pyrene-4,5,9,10-tetraones through Propylene Glycol and Propanediol Protection
Enhanced Solubility and Deprotection of Pyrene-4,5,9,10-tetraones through Propylene Glycol and Propanediol Protection Open
Pyrene-4,5,9,10-tetraone (PTO) is a building block of significant interest for functional organic materials. Due to the sensitivity of the vicinal diones toward bases and metal-ion chelation, and low solubility, PTO is typically protected …
View article: From Fabrication to Failure—Aqueous Processing, Electrolyte Tuning, and Degradation Mechanism Elucidation in Poly(3‐Vinyl‐<i>N</i>‐Methylphenoxazine) Positive Electrodes
From Fabrication to Failure—Aqueous Processing, Electrolyte Tuning, and Degradation Mechanism Elucidation in Poly(3‐Vinyl‐<i>N</i>‐Methylphenoxazine) Positive Electrodes Open
Organic electrode materials are considered the next generation of battery electrode materials due to their environmental friendliness, low toxicity, and competitive specific capacities. Herein, a systematic study of the processing of the r…
View article: Synthesis of Poly(1,4‐anthraquinone) Using Catalytic Amounts of Nickel
Synthesis of Poly(1,4‐anthraquinone) Using Catalytic Amounts of Nickel Open
Multivalent metal batteries are attractive options to diversify energy storage options offering higher sustainability, but the high charge density of multivalent ions poses challenges to electrode materials. Organic electrode materials are…
View article: Size and Geometry Impact the Chiroptical Properties of Double Nanohoops
Size and Geometry Impact the Chiroptical Properties of Double Nanohoops Open
Conjugated nanohoops have attracted much attention in recent years due to their unique optoelectronic properties. A more complex geometry, in which two nanohoops are covalently linked to form a so-called double nanohoop, can have a signifi…
View article: Diketo[n]CPPs as Chiral and Shape-adaptive Fullerene Hosts and Precursors to DBP[n]CPPs
Diketo[n]CPPs as Chiral and Shape-adaptive Fullerene Hosts and Precursors to DBP[n]CPPs Open
Conjugated nanohoops, such as [n]cycloparaphenylenes ([n]CPPs) and derivatives, exhibit unique structural and optoelectronic properties, making them promising candidates for applications in optoelectronic materials, and as hosts for supram…
View article: Phenothiazine Polymers as Versatile Electrode Materials for Next-Generation Batteries
Phenothiazine Polymers as Versatile Electrode Materials for Next-Generation Batteries Open
Organic battery electrode materials are key enablers of different postlithium cell chemistries. As a p-type compound with up to two reversible redox processes at relatively high potentials of 3.5 and 4.1 V vs. Li/Li+, phenothiazine is an e…
View article: Excited State Branching Processes in a Ru(II)‐Based Donor–Acceptor–Donor System
Excited State Branching Processes in a Ru(II)‐Based Donor–Acceptor–Donor System Open
Excited state properties such as excitation energy, accessibility of the respective excited state either by direct or indirect population transfer, and its lifetime govern the application of these excited states in light‐driven reactions, …
View article: Effect of Annulation Pattern on the Antiaromaticity of Thioether‐ and Sulfone‐Substituted Dinaphthopentalenes
Effect of Annulation Pattern on the Antiaromaticity of Thioether‐ and Sulfone‐Substituted Dinaphthopentalenes Open
As non‐alternant hydrocarbons with antiaromatic character, diarenopentalenes are of significant interest. By varying the nature and attachment geometry of the annulated aromatic units, their antiaromaticity and optoelectronic properties ca…
View article: Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous <i>N</i> ‐Doped Carbon Nanospheres as Conductive Additive
Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous <i>N</i> ‐Doped Carbon Nanospheres as Conductive Additive Open
The increasing demand for batteries in mobile devices, electromobility, and stationary storage requires the development of new battery materials. The organic redox‐active polymer poly(vinyl‐ N ‐methylphenothiazine) (PVMPT) shows a fast and…
View article: Quantifying local heterogeneities in the 3D morphology of X-PVMPT battery electrodes based on FIB-SEM measurements
Quantifying local heterogeneities in the 3D morphology of X-PVMPT battery electrodes based on FIB-SEM measurements Open
Organic electrode-active materials (OAMs) not only enable a variety of charge and storage mechanisms, but are also safer for the environment and of lower cost compared to materials in commonly used lithium-ion batteries. Cross-linked Poly(…
View article: How Do Organic Batteries Work? Theoretical and Design Principles of Electrode Materials for All‐Organic Batteries
How Do Organic Batteries Work? Theoretical and Design Principles of Electrode Materials for All‐Organic Batteries Open
Post‐Li battery technologies are becoming increasingly important. The diverse range of electrically powered devices requires a diversification of electrochemical energy storage technologies. Organic electrode materials are of particular im…
View article: Electron Donor‐Functionalized Pyrenes with Amplified Spontaneous Emission for Violet–Blue Electroluminescent Devices Beyond the Spin Statistical Limit
Electron Donor‐Functionalized Pyrenes with Amplified Spontaneous Emission for Violet–Blue Electroluminescent Devices Beyond the Spin Statistical Limit Open
Direct electrically pumped organic lasers remain inaccessible to date, due to an interplay of different adverse effects. The most important of these effects are insufficient charge carrier mobility in the organic material, accumulation of …
View article: Electron Donor-Functionalized Pyrenes with Amplified Spontaneous Emission for Violet-Blue Electroluminescent Devices Beyond the Spin Statistical Limit
Electron Donor-Functionalized Pyrenes with Amplified Spontaneous Emission for Violet-Blue Electroluminescent Devices Beyond the Spin Statistical Limit Open
Direct electrically pumped organic lasers remain inaccessible to date, due to an interplay of different adverse effects. The most important of these effects are, insufficient charge carrier mobility in the organic material, accumulation of…
View article: Post‐Lithium Storage—Shaping the Future
Post‐Lithium Storage—Shaping the Future Open
Electrochemical Energy Storage is one of the most active fields of current materials research, driven by an ever-growing demand for cost- and resource-effective batteries. The lithium-ion battery (LIB) was commercialized more than 30 years…
View article: Unlocking Twofold Oxidation in Phenothiazine Polymers for Application in Symmetric All-Organic Anionic Batteries
Unlocking Twofold Oxidation in Phenothiazine Polymers for Application in Symmetric All-Organic Anionic Batteries Open
Organic redox-active polymers stand out as electrode materials for alternative energy storage devices due to their potentially higher sustainability and the variability of their structures and charge storage mechanisms. Structural design o…
View article: Mitigating Dissolution to Enhance the Performance of Pillar[5]quinone in Sodium Batteries
Mitigating Dissolution to Enhance the Performance of Pillar[5]quinone in Sodium Batteries Open
Sodium‐ion batteries using organic electrode materials are a promising alternative to state‐of‐the‐art lithium‐ion batteries. However, their practical viability is hindered by challenges such as a low specific capacity of the organic elect…
View article: Advancing Reversible Magnesium−Sulfur Batteries with a Self-Standing Gel Polymer Electrolyte
Advancing Reversible Magnesium−Sulfur Batteries with a Self-Standing Gel Polymer Electrolyte Open
Magnesium (Mg) metal batteries exhibit great potential as energy storage systems beyond lithium, owing to their inherent safety, material sustainability, and low cost. However, their development is hindered by the lack of a suitable electr…
View article: Low‐lying LUMO Boosts Conductance in Antiaromatic Dibenzopentalene Versus Aromatic Analogues
Low‐lying LUMO Boosts Conductance in Antiaromatic Dibenzopentalene Versus Aromatic Analogues Open
Antiaromaticity is a fundamental concept in chemistry, but the study of molecular wires incorporating antiaromatic units is limited. Despite initial predictions, very few studies show that antiaromaticity has a beneficial effect on electro…
View article: Energy Harvesting and Storage with a High Voltage Organic Inorganic Photo‐Battery for Internet of Things Applications
Energy Harvesting and Storage with a High Voltage Organic Inorganic Photo‐Battery for Internet of Things Applications Open
Integrated local energy harvesting and storage is a critical prerequisite for energy autonomy of distributed sensing arrays required for the implementation of the internet of things (IoT). In this context, the monolithic integration of sol…
View article: Unlocking twofold oxidation in phenothiazine polymers for application in symmetric all-organic anionic batteries
Unlocking twofold oxidation in phenothiazine polymers for application in symmetric all-organic anionic batteries Open
Organic redox-active polymers stand out as electrode materials for alternative energy storage devices due to their potentially higher sustainability and the variability of their structures and charge storage mechanisms. Structural design o…
View article: Pillarquinone-based sodium-ion batteries using a highly concentrated electrolyte
Pillarquinone-based sodium-ion batteries using a highly concentrated electrolyte Open
Sodium-ion batteries using organic electrode materials are a promising alternative to state-of-the-art lithium-ion batteries. However, their practical viability is hindered by challenges such as a low specific capacity of the organic elect…