A5037414759- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Silicon and Solar Cell Technologies
- Nanowire Synthesis and Applications
- Photovoltaic System Optimization Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Marine Bivalve and Aquaculture Studies
- solar cell performance optimization
- Carbon Nanotubes in Composites
- Atmospheric and Environmental Gas Dynamics
- Electron and X-Ray Spectroscopy Techniques
- Perovskite Materials and Applications
- Mercury impact and mitigation studies
- Polymer crystallization and properties
- Molecular Junctions and Nanostructures
- Force Microscopy Techniques and Applications
- Marine and fisheries research
- Semiconductor materials and interfaces
- Aquaculture Nutrition and Growth
- Ion-surface interactions and analysis
- Toxic Organic Pollutants Impact
University of the Faroe Islands
2022
Technical University of Denmark
2011-2013
Aqueous nanoparticle dispersions of a series three low-band-gap polymers poly[4,8-bis(2-ethylhexyloxy)benzo(1,2-b:4,5-b′)dithiophene-alt-5,6-bis(octyloxy)-4,7-di(thiophen-2-yl)(2,1,3-benzothiadiazole)-5,5′-diyl] (P1), poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-b:2′,3′-d]silole)-2,6-diyl-alt-(2,1,3-benzothiadiazole)-4,7-diyl] (P2), and poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (P3) were prepared using ultrasonic treatment chloroform solution the polymer...
The investigation of degradation seven distinct sets (with a number individual cells n ≥ 12) state the art organic photovoltaic devices prepared by leading research laboratories with combination imaging methods is reported. All have been shipped to and degraded at Risø DTU up 1830 hours in accordance established ISOS-3 protocols under defined illumination conditions. Imaging device function different stages was performed laser-beam induced current (LBIC) scanning; luminescence imaging,...
Seven distinct sets (n ≥ 12) of state the art organic photovoltaic devices were prepared by leading research laboratories in a collaboration planned at Third International Summit on Organic Photovoltaic Stability (ISOS-3). All shipped to RISØ DTU and characterized simultaneously up 1830 h accordance with established ISOS-3 protocols under three illumination conditions: accelerated full sun simulation; low level indoor fluorescent lighting; dark storage daily measurement simulation. Three...
We are here presenting a comparative study between four different types of functionalities for cross-linking. With relatively simple means bromine, azide, vinyl and oxetane could be incorporated into the side chains low band-gap polymer TQ1. Cross-linking polymers was achieved by UV-light illumination to give solvent resistant films reduced phase separation growth PCBM crystallites in polymer:PCBM films. The stability solar cells based on cross-linked tested under various conditions. This...
This work is part of the inter-laboratory collaboration to study stability seven distinct sets state-of-the-art organic photovoltaic (OPV) devices prepared by leading research laboratories. All have been shipped and degraded at RISØ-DTU up 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. In this work, we apply Incident Photon-to-Electron Conversion Efficiency (IPCE) situ IPCE techniques determine relation between solar cell performance...
New thermally reactive copolymers based on dithienylthiazolo[5,4-d]thiazole (DTZ) and silolodithiophene (SDT) have been synthesized explored in bulk heterojunction solar cells as mixtures with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). In thin films the polymers had optical band gaps range of 1.64–1.80 eV. For solubility incorporated alkyl groups SDT unit removable DTZ that can be eliminated around 200 °C for improved photochemical stability films. The bulkiness chains proved to very...
Light induced thermocleaving of a thermally reactive copolymer based on dithienylthiazolo[5,4-d]thiazole (DTZ) and silolodithiophene (SDT) in contact with the heat sensitive substrate polyethyleneterphthalate (PET) was effectively demonstrated use high intensity pulsed light, delivered by commercial photonic sintering system. Thermally labile ester groups are positioned DTZ unit that can be eliminated for enhanced photochemical stability advantages terms processing (solubility/insolubility...
The present work is the fourth (and final) contribution to an inter-laboratory collaboration that was planned at 3rd International Summit on Organic Photovoltaic Stability (ISOS-3). involved six laboratories capable of producing seven distinct sets OPV devices were degraded under well-defined conditions in accordance with ISOS-3 protocols. degradation experiments lasted up 1830 hours and more than 300 cells 100 devices. analyzed characterized different points their lifetimes by a large...
ADVERTISEMENT RETURN TO ISSUEPREVNoteRemoval of Solubilizing Side Chains at Low Temperature: A New Route to Native Poly(thiophene)Eva Bundgaard*†, Ole Hagemann†, Morten Bjerring‡, Niels Chr. Nielsen‡, Jens W. Andreasen†, Birgitta and Frederik C. Krebs†View Author Information† Department Energy Conversion Storage, Technical University Denmark, Frederiksborgvej 399, DK-4000 Roskilde, Denmark‡ Centre for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience (iNANO) Chemistry,...
We report the preparation of native polythiophene (n-PT)/[6, 6]-phenyl-C61-butyric acid methyl ester (PCBM) composite nanoparticles from a poly[3-(2-methylhex-2-yl)oxy-carbonyldithiophene] (P3MHOCT)/PCBM aqueous dispersion prepared an ultrasonically generated emulsion. The subsequent steps involve both ultrasonic generation microdroplets in argon as carrier gas and drying followed by thermocleaving P3MHOCT component phase. chemical transition to n-PT was confirmed Fourier transform infrared...
Silicon nano-particles grafted with two different organic oligomers were prepared; the used a phenylene-vinylene (PV) oligomer and 3,3'''-didodecylquaterthiophene. The graftings performed by use of functional groups, PV was hydroxyl-group in form phenol lithium derivative to graft morphology size particles analyzed atomic force microscopy (AFM) extent grafting NMR. Organic photovoltaics normal geometry (ITO/PEDOT:PSS/active layer/Al) prepared using these materials as donor phenyl-C61-butyric...
Commercial salmonid farming is typically performed in open-water net cages where interactions between the environment and production unit might be widespread not easily predicted or controlled. Integrated multi-trophic aquaculture (IMTA) has been suggested to mitigate some of environmental impacts. Based on empirical data, assimilation particulate waste from a commercial fish farm was modeled by two approaches salmon/blue mussel IMTA: system with mussels at surface next an alternative setup...
Seven distinct sets (n ≥ 12) of state the art organic photovoltaic devices were prepared by leading research laboratories in a collaboration planned at Third International Summit on Organic Photovoltaic Stability (ISOS-3). All shipped to DTU and characterized simultaneously up 1830 h accordance with established ISOS-3 protocols under three illumination conditions: accelerated full sun simulation; low level indoor fluorescent lighting; dark storage daily measurement simulation. Three...
This work is part of the inter-laboratory collaboration to study stability seven distinct sets state-of-the-art organic photovoltaic (OPVs) devices prepared by leading research laboratories. All have been shipped and degraded at Danish Technical University (DTU, formerly RISO-DTU) up 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. In this we present a summary degradation response observed for NREL sample, an inverted OPV type...