A5073510029- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Superconducting and THz Device Technology
- Gyrotron and Vacuum Electronics Research
- Photonic and Optical Devices
- Semiconductor materials and interfaces
- Radio Frequency Integrated Circuit Design
- Semiconductor Lasers and Optical Devices
- Spectroscopy and Quantum Chemical Studies
- Multiferroics and related materials
- Energy Harvesting in Wireless Networks
- Spectroscopy and Laser Applications
- Photosynthetic Processes and Mechanisms
- Advanced Thermoelectric Materials and Devices
- Nanowire Synthesis and Applications
- Strong Light-Matter Interactions
- Ferroelectric and Piezoelectric Materials
- Molecular Junctions and Nanostructures
- Microwave Dielectric Ceramics Synthesis
Technical University of Denmark
2023-2025
Luxembourg Institute of Science and Technology
2022
Ghent University
2019
Abstract Doping is a crucial strategy to enhance the performance of various organic electronic devices. However, in many cases, random distribution dopants conjugated polymers leads disruption polymer microstructure, severely constraining achievable Here, it shown that by ion‐exchange doping polythiophene‐based P[(3HT) 1‐x ‐stat‐(T) x ] ( = 0 (P1), 0.12 (P2), 0.24 (P3), and 0.36 (P4)), remarkably high electrical conductivity >400 S cm −1 power factor >16 µW m K −2 are achieved for...
n-Type organic electrochemical transistors (OECTs) and field-effect (OFETs) are less developed than their p-type counterparts. Herein, polynaphthalenediimide (PNDI)-based copolymers bearing novel fluorinated selenophene-vinylene-selenophene (FSVS) units as efficient materials for both n-type OECTs OFETs reported. The PNDI polymers with oligo(ethylene glycol) (EG7) side chains P(NDIEG7-FSVS), affords a high µC* of > 0.2 F cm
Retraction of ‘Integration photovoltaic organic materials into mm-wave technologies: towards self-powered phase shifters’ by Suraj Manikandan et al. , J. Mater. Chem. C 2024, https://doi.org/10.1039/D4TC02828G.
Tuning bulk heterojunctions is an important step for improving organic photovoltaic device performance; however, challenges remain in obtaining sufficient lifetimes using this concept. In work, we report on high-performance PM6/Y7 layer-by-layer devices by carefully tuning the structure and studying effects performance. We demonstrate that optimized can effectively improve photophysical properties of device, resulting a conversion efficiency 16.21%, surpassing heterojunction counterpart....
Abstract The development of n‐type organic thermoelectric materials, especially π‐conjugated small molecules, lags far behind their p‐type counterparts, due primarily to the scarcity efficient electron‐transporting molecules and typically low electron affinities conjugated that leads inefficient n‐doping. Herein, n‐doping two functionalized (carbonyl vs dicyanovinylene) indenofluorene‐based 2,8‐bis(5‐(2‐octyldodecyl)thien‐2‐yl)indeno[1,2‐b]fluorene‐6,12‐dione (TIFDKT)...
Abstract Modern high‐frequency applications critically depend on the availability of data dielectric properties functional materials in microwave and millimeter‐wave range. This paper investigates response polycrystalline lead zirconate titanate (PZT) thin films prepared by solution deposition at frequencies between 10 MHz 70 GHz temperatures 305–395 K measuring S‐parameters coplanar waveguides (CPW). The real imaginary parts permittivity PZT film are de‐coupled from electrical both fused...
This communication introduces a Ka-band phase shifter that leverages blend of the donor polymer PM6 and non-fullerene acceptor (NFA) Y7 organic materials. The design integrates coplanar waveguide (CPW) with spin-coated thin film PM6:Y7 blend, characterized by its dielectric nonlinearity light sensitivity. An applied electric field between CPW signal ground electrodes governs shift mechanism, effectively modulating permittivity blend. Our study reveals significant differential up to 28 degree...
Dielectric properties and nonlinear capacitance of PM6:Y7 blend, voltage-dependent phase shifting, its performance in CPW systems.
This communication introduces a Ka-band phase shifter that leverages blend of the donor polymer PM6 and non-fullerene acceptor (NFA) Y7 organic materials. The design integrates coplanar waveguide (CPW) with spin-coated thin film PM6:Y7 blend, characterized by its dielectric nonlinearity light sensitivity. An applied electric field between CPW signal ground electrodes governs shift mechanism, effectively modulating permittivity blend. Our study reveals significant differential up to 28 degree...
Organic photovoltaics (OPVs) have emerged as a promising technology for renewable energy production. However, their stability and performance depend on the morphology roughness of interface between donor acceptor layers. In this study, we investigated transport properties degradation mechanisms inverted bilayer solar cells based P3HT using dark current measurements capacitance spectroscopy. Our study shows that molecular orientation intermixing layers can be regulated solvent-drenching...
Organic photovoltaics (OPVs) have emerged as a promising technology for renewable energy production. However, their stability and performance depend on the morphology roughness of interface between donor acceptor layers. In this study, we investigated transport properties degradation mechanisms inverted bilayer solar cells based P3HT using dark current measurements capacitance spectroscopy. Our study shows that molecular orientation intermixing layers can be regulated solvent-drenching...
Organic solar cells (OSCs) hold significant promise as low-cost, flexible, and lightweight photovoltaic technologies. However, they encounter challenges such instability in donor-acceptor (D-A) mixing limited exciton dissociation bilayer configurations. To address these issues, we propose a strategy that leverages polariton-mediated energy transfer by integrating Fabry-Pérot cavity into OSCs. This configuration facilitates the formation of hybrid light-matter states, known polaritons, which...
The present work is a theoretical and experimental study of temperature effect on wavelength threshold current. Since Semiconductor lasers are the type which uses semiconductor material as gain medium to achieve stimulated emission radiation. In this module, use VCSEL laser diode. Temperature change cause shift its current, variation also causes in output wavelength. results highly agreement with calculations.