693.932 PEOPLE
| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lutsen, Laurence
IMEC
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (93/93 displayed)
- 2024Elucidating the Non-Covalent Interactions that Trigger Interdigitation in Lead-Halide Layered Hybrid Perovskites.citations
- 2024Elucidating the non-covalent interactions that trigger interdigitation in lead-halide layered hybrid perovskitescitations
- 20233D Perovskite Passivation with a Benzotriazole-Based 2D Interlayer for High-Efficiency Solar Cellscitations
- 20233D Perovskite Passivation with a Benzotriazole-Based 2D Interlayer for High-Efficiency Solar Cells.
- 20233D perovskite passivation with a benzotriazole-based 2D interlayer for high-efficiency solar cellscitations
- 20232D and quasi-2D hybrid perovskites containing organic cations with an extended conjugated system: opportunities and challengescitations
- 20232D and quasi-2D hybrid perovskites containing organic cations with an extended conjugated system: opportunities and challengescitations
- 2023Surface Modulation via Conjugated Bithiophene Ammonium Salt for Efficient Inverted Perovskite Solar Cellscitations
- 2023Surface Modulation via Conjugated Bithiophene Ammonium Salt for Efficient Inverted Perovskite Solar Cellscitations
- 2022A PDTPQx:PC61BM blend with pronounced charge-transfer absorption for organic resonant cavity photodetectors – direct arylation polymerization vs. Stille polycondensationcitations
- 2022A PDTPQx:PC61BM blend with pronounced charge-transfer absorption for organic resonant cavity photodetectors – direct arylation polymerization vs. Stille polycondensationcitations
- 2021Continuous Droplet Flow Synthesis of a Near-Infrared Responsive Push-Pull Copolymer toward Large Scale Implementation of Organic Photodetectorscitations
- 2021Directing the self-assembly of conjugated organic ammonium cations in low-dimensional perovskites by halide substitutioncitations
- 2018Multi-layered hybrid perovskites templated with carbazole derivatives: optical properties, enhanced moisture stability and solar cell characteristicscitations
- 2018Degradation of the Formamidinium Cation and the Quantification of the Formamidinium–Methylammonium Ratio in Lead Iodide Hybrid Perovskites by Nuclear Magnetic Resonance Spectroscopycitations
- 2018An effective strategy to enhance the dielectric constant of organic semiconductors - CPDTTPD-based low bandgap polymers bearing oligo(ethylene glycol) side chainscitations
- 2017Molecular weight tuning of low bandgap polymers by continuous flow chemistry: increasing the applicability of PffBT4T for organic photovoltaicscitations
- 2016High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cellscitations
- 2016Synthesis of Highly Fluorescent All-Conjugated Alternating Donor Acceptor (Block) Copolymers via GRIM Polymerizationcitations
- 2015Ultrasonic spray coating as deposition technique for the light-emitting layer in polymer LEDscitations
- 2015Fluorination as an effective tool to increase the open-circuit voltage and charge carrier mobility of organic solar cells based on poly(cyclopenta[2,1-b:3,4-b′]dithiophene-alt-quinoxaline) copolymerscitations
- 2015Continuous Synthesis and Thermal Elimination of Sulfinyl-Route Poly(p-Phenylene Vinylene) in Consecutive Flow Reactionscitations
- 2015Enhanced Organic Solar Cell Stability by Polymer (PCPDTBT) Side Chain Functionalization
- 2015N-acyl-dithieno[3,2-b:2 ',3 '-d]pyrrole-based low bandgap copolymers affording improved open-circuit voltages and efficiencies in polymer solar cells
- 2015Fluorination as an effective tool to increase the open-circuit voltage and charge carrier mobility of organic solar cells based on poly(cyclopenta[2,1-b:3,4-b ']dithiophene-alt-quinoxaline) copolymerscitations
- 2015Effect of molecular weight on morphology and photovoltaic properties in P3HT:PCBM solar cellscitations
- 2015Effect of molecular weight on morphology and photovoltaic properties in P3HT:PCBM solar cells
- 2015N-acyl-dithieno[3,2-b2',3'-d]pyrrole-based low bandgap copolymers affording improved open-circuit voltages and efficiencies in polymer solar cellscitations
- 2015Continuous Flow Polymer Synthesis toward Reproducible Large-Scale Production for Efficient Bulk Heterojunction Organic Solar Cellscitations
- 2015Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubilitycitations
- 2015Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubility
- 2014Synthesis of PPV-b-PEG block copolymers via CuAAC conjugationcitations
- 2014Fluorination as an effective tool to increase the open-circuit voltage and charge carrier mobility of organic solar cells based on poly(cyclopenta[2,1-b:3,4-b′]dithiophene-alt-quinoxaline) copolymerscitations
- 2014Structural and dielectric properties of parylene-VT4 thin filmscitations
- 2014Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2′,3′-d]pyrrole N-acylationcitations
- 2014Enhanced open-circuit voltage in polymer solar cells by dithieno[3,2-b:2 ',3 '-d]pyrrole N-acylationcitations
- 2014TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2013Ester-functionalized poly(3-alkylthiophene) copolymers: Synthesis, physicochemical characterization and performance in bulk heterojunction organic solar cellscitations
- 2013Ester-functionalized poly(3-alkylthiophene) copolymers : synthesis, physicochemical characterization and performance in bulk heterojunction organic solar cells
- 2013Imidazolium-substituted ionic (co)polythiophenes: Compositional influence on solution behavior and thermal propertiescitations
- 2013Imidazolium-substituted ionic (co)polythiophenes: Compositional influence on solution behavior and thermal properties
- 2013Ionic high-performance light harvesting and carrier transporting OPV materialscitations
- 2013In Situ Monitoring the Thermal Degradation of PCPDTBT Low Band Gap Polymers with Varying Alkyl Side-Chain Patternscitations
- 2013The Importance of Bridging Points for Charge Transport in Webs of Conjugated Polymer Nanofibers
- 2013Solution-processed bi-layer polythiophene-fullerene organic solar cells
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices - the ISOS-3 inter-laboratory collaborationcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices - the ISOS-3 inter-laboratory collaborationcitations
- 2012Influence of octanedithiol on the nanomorphology of PCPDTBT:PCBM blends studied by solid-state NMRcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices: the ISOS-3 inter-laboratory collaboration:
- 2012Improved Photovoltaic Performance of a Semicrystalline Narrow Bandgap Copolymer Based on 4H-Cyclopenta[2,1-b:3,4-b ']dithiophene Donor and Thiazolo[5,4-d]thiazole Acceptor Unitscitations
- 2012Improved Photovoltaic Performance of a Semicrystalline Narrow Bandgap Copolymer Based on 4H-Cyclopenta[2,1-b:3,4-b ']dithiophene Donor and Thiazolo[5,4-d]thiazole Acceptor Units
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devices – the ISOS-3 inter-laboratory collaborationcitations
- 2012TOF-SIMS investigation of degradation pathways occurring in a variety of organic photovoltaic devicescitations
- 2011Phase behavior of PCBM blends with different conjugated polymerscitations
- 2011Phase behavior of PCBM blends with different conjugated polymers
- 2011Influence of octanedithiol on the nanomorphology of PCPDTBT:PCBM blends studied by solid-state NMR
- 2011An Efficient Acid-Induced Conversion of Dithiocarbamate Precursor Polymers into Conjugated Materialscitations
- 2011An Efficient Acid-Induced Conversion of Dithiocarbamate Precursor Polymers into Conjugated Materialscitations
- 2011CAFM on conjugated polymer nanofibers: Capable of assessing one fiber mobility
- 2011Identification and Quantification of Defect Structures in Poly(2,5-thienylene vinylene) Derivatives Prepared via the Dithiocarbamate Precursor Route by Means of NMR Spectroscopy on (13)C-Labeled Polymers
- 2011Tetra-alkoxy substituted PPV derivatives: a new class of highly soluble liquid crystalline conjugated polymerscitations
- 2011Tetra-alkoxy substituted PPV derivatives: a new class of highly soluble liquid crystalline conjugated polymerscitations
- 2011Solid-State NMR as a Tool to Describe and Quantify the Morphology of Photoactive Layers Used in Plastic Solar Cellscitations
- 2011Thermal stability of poly[2-methoxy-5-(2’-phenylethoxy)-1,4-phenylene vinylene] (MPEPPV):fullerene bulk heterojunction solar cells
- 2010Alkyl-Chain-Length-Independent Hole Mobility via Morphological Control with Poly(3-alkylthiophene) Nanofiberscitations
- 2010MIP-based sensor platforms for the detection of histamine in the nano- and micromolar range in aqueous mediacitations
- 2009Efficient formation, isolation and characterization of poly(3-alkylthiophene) nanofibres: probing order as a function of side-chain length
- 2009Design and Synthesis of Functionalized Regio regular Poly(3-hexylthiophene) based Copolymers and Application in polymer : fullerene Bulk Heterojunction solar cellscitations
- 2009Exploring the Dithiocarbamate Precursor Route: Observation of a Base Induced Regioregularity Excess in Poly[(2-methoxy-5-(3 ',7 '-dimethyloctyloxy))-1,4-phenylenevinylene] (MDMO-PPV)citations
- 2009Controlling the morphology of nanofiber-P3HT:PCBM blends for organic bulk heterojunction solar cellscitations
- 2009Design and synthesis of side-chain functionalized regioregular poly(3-hexylthiophene)-based copolymers and application in polymer:fullerene bulk heterojunction solar cellscitations
- 2009The use of nanofibers of P3HT in bulk heterojunction solar cells: the effect of order and morphology on the performance of P3HT:PCBM blends
- 2008Effect of temperature on the morphological and photovoltaic stability of bulk heterojunction polymer: fullerene solar cellscitations
- 2008Effect of temperature on the morphological and photovoltaic stability of bulk heterojunction polymer: fullerene solar cells
- 2008NMR study of the nanomorphology in thin films of polymer blends used in organic PV devices: MDMO-PPV/PCBMcitations
- 2007The synthesis of regio-regular poly(3-alkyl-2,5-thienylene vinylene) derivatives using lithium bis(trimethylsilyl)amide (LHMDS) in the dithiocarbamate precursorcitations
- 2007Influence of thermal ageing on the stability of polymer bulk heterojunction solar cellscitations
- 20072,5-substituted PPV-derivatives with different polarities: The effect of side chain polarity on solubility, optical and electronic propertiescitations
- 20072,5-substituted PPV-derivatives with different polarities: The effect of side chain polarity on solubility, optical and electronic propertiescitations
- 2007The synthesis of poly(thienylene vinylene) derivatives via the dithiocarbamate route: low band gap p-type conjugated polymers for photovoltaicscitations
- 2006Application of functional PPV-derivatives prepared via the sulfinyl precursor route as transducers in impedimetric biosensors
- 2006An efficient route towards functional PPV-derivatives for sensor applications
- 2006Correlation between the molecular structure and the charge carrier mobility in poly(arylene vinylene) derivatives
- 2006Non-isothermal elimination process in the solid state of n-alkyl-sulphinyl precursor polymers towards conjugated poly[2-(3 ',7 '-dimethyloctyloxy)-5-methoxy-1,4-phenylene vinylene] studied with MTDSC and TGAcitations
- 2004Effect of temperature and illumination on the electrical characteristics of polymer-fullerene bulk-heterojunction solar cellscitations
- 2004Effect of temperature and illumination on the electrical characteristics of polymer-fullerene bulk-heterojunction solar cellscitations
- 2004Study of the nanomorphology of OC1C10-PPV/precursor-PPV blends by solid state NMR relaxometry
- 2004Modelling the short-circuit current of polymer bulk heterojunction solar cells
- 2002Polymerization behavior of xanthate-containing monomers toward PPV precursor polymers: Study of the elimination behavior of precursor polymers and oligomers with in-situ FT-IR and UV-Vis analytical techniquescitations
- 2002A comparison between state-of-the-art 'gilch' and 'sulphinyl' synthesised MDMO-PPV/PCBM bulk hetero-junction solar cellscitations
- 2002Current-Voltage Characteristics of Polymer-Fullerene Solar Cells
- 2002Study of the conversion process of sulfinyl-OC1C10-PPV precursor polymers with different analytical techniques
Places of action
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book
Effect of molecular weight on morphology and photovoltaic properties in P3HT:PCBM solar cells
Abstract
The molecular weight of poly(3-hexylthiophene) is an important factor influencing the photovoltaic properties of bulk heterojunction organic solar cells based on this material. However, since different synthetic processes or repetitive soxhlet extractions - generally applied to obtain the different molecular weight batches under study - result in samples with simultaneously varying regioregularity (RR) and polydispersity index (PDI), it has not been possible yet to find an unambiguous correlation between the molecular weight and the photovoltaic performance. In the present work preparative gel permeation chromatography is introduced as a versatile technique to fractionate the donor polymer and thereby obtain a systematic variation of the number average molecular weight (M-n = 11-91 kg mol (1)) with an almost constant PDI and RR. Polymer crystallinity and conjugation length are evaluated by UV-Vis spectroscopy, rapid heat-cool calorimetry and selected area electron diffraction, and are found to be deeply affected by Mn. This in turn influences the behavior of the charge transfer state energy, measured via Fourier transform photocurrent spectroscopy, and therefore the open-circuit voltage. The short-circuit current is also affected by Mn, but mainly due to a change in absorption coefficient. The apparent recombination order is shown to be linked to the morphology of the polymer: fullerene blend and is determined using transient photovoltage and photocurrent techniques. Finally, a correlation between recombination and fill factor is also suggested. (C) 2015 Elsevier B.V. All rights reserved. ; The authors would like to acknowledge the Interreg Euregio-Maas-Rijn project 'ORGANEXT' and the IWT-SBO-project Polyspec for funding. They are also grateful for financial support by the Research Programme of the Research Foundation - Flanders (FWO) (project G.0415.14N and M.ERA-NET project RADESOL). ; molecular weight; crystallinity; preparative gel permeation; chromatography; recombination order