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List of works by Koen Vandewal

A charge carrier transport model for donor-acceptor blend layers

article

A general relationship between disorder, aggregation and charge transport in conjugated polymers

scientific article

Absorption Tails of Donor:C60 Blends Provide Insight into Thermally Activated Charge-Transfer Processes and Polaron Relaxation

scientific article published on 10 January 2017

Alkyl branching position in diketopyrrolopyrrole polymers: Interplay between fibrillar morphology and crystallinity and their effect on photogeneration and recombination in bulk-heterojunction solar cells

scientific article from 2018

An Easily Accessible Isoindigo-Based Polymer for High-Performance Polymer Solar Cells

scientific article published in 2011

Author Correction: Molecular vibrations reduce the maximum achievable photovoltage in organic solar cells

scientific article published on 22 April 2020

Aza-BODIPY Derivatives Containing BF(CN) and B(CN)2 Moieties

scientific article published on 12 December 2016

Beyond Langevin Recombination: How Equilibrium Between Free Carriers and Charge Transfer States Determines the Open-Circuit Voltage of Organic Solar Cells

article

Bipolar Charge Transport in Fullerene Molecules in a Bilayer and Blend of Polyfluorene Copolymer and Fullerene

Boron dipyrromethene (BODIPY) with meso-perfluorinated alkyl substituents as near infrared donors in organic solar cells

scientific article published in 2018

Built-in voltage of organic bulk heterojuction p-i-n solar cells measured by electroabsorption spectroscopy

article

Characterizing the Polymer:Fullerene Intermolecular Interactions

Charge Transfer Absorption and Emission at ZnO/Organic Interfaces

scientific article published on 23 January 2015

Charge Transfer State Versus Hot Exciton Dissociation in Polymer−Fullerene Blended Solar Cells

scientific article published in 2010

Charge Transfer States in Organic Donor–Acceptor Solar Cells

article

Charge Transport in Pure and Mixed Phases in Organic Solar Cells

Charge-Transfer States and Upper Limit of the Open-Circuit Voltage in Polymer:Fullerene Organic Solar Cells

article

Co-evaporant induced crystallization of zinc phthalocyanine:C60 blends for solar cells

Comparing the Device Physics and Morphology of Polymer Solar Cells Employing Fullerenes and Non-Fullerene Acceptors

Confined organization of fullerene units along high polymer chains

Conformational Disorder Enhances Solubility and Photovoltaic Performance of a Thiophene-Quinoxaline Copolymer

Controlling Interdiffusion, Interfacial Composition, and Adhesion in Polymer Solar Cells

article

Controlling Tamm Plasmons for Organic Narrowband Near-Infrared Photodetectors

scientific article from 2017

Correlated Donor/Acceptor Crystal Orientation Controls Photocurrent Generation in All-Polymer Solar Cells

article

Correlation of open-circuit voltage and energy levels in zinc-phthalocyanine: C60bulk heterojunction solar cells with varied mixing ratio

scholarly article in Physical Review B, vol. 88 no. 8, August 2013

Degradation of Sexithiophene Cascade Organic Solar Cells

Degradation pathways in standard and inverted DBP-C based organic solar cells

scientific article published on 11 March 2019

Development of polymer–fullerene solar cells

article

Diffusion-Limited Crystallization: A Rationale for the Thermal Stability of Non-Fullerene Solar Cells

scientific article published on 07 June 2019

Diketopyrrolopyrrole-based terpolymers with tunable broad band absorption for fullerene and fullerene-free polymer solar cells

scientific article published in 2019

Direct Correlation of Charge Transfer Absorption with Molecular Donor:Acceptor Interfacial Area via Photothermal Deflection Spectroscopy

scientific article published on 16 April 2015

Disorder-Induced Open-Circuit Voltage Losses in Organic Solar Cells During Photoinduced Burn-In

article

Doping-induced carrier profiles in organic semiconductors determined from capacitive extraction-current transients

scientific article published on 14 July 2017

EU COST Action MP1307 — Unravelling the degradation mechanisms of emerging solar cell technologies

Effect of Alkyl Side-Chain Length on Photovoltaic Properties of Poly(3-alkylthiophene)/PCBM Bulk Heterojunctions

Effect of H- and J-Aggregation on the Photophysical and Voltage Loss of Boron Dipyrromethene Small Molecules in Vacuum-Deposited Organic Solar Cells

scientific article published on 10 May 2019

Effect of molecular weight on morphology and photovoltaic properties in P3HT:PCBM solar cells

Effective Solution- and Vacuum-Processed n-Doping by Dimers of Benzimidazoline Radicals

Efficient charge generation by relaxed charge-transfer states at organic interfaces

scientific article published on 17 November 2013

Efficient flexible organic photovoltaics using silver nanowires and polymer based transparent electrodes

article

Electroluminescence from charge transfer states in polymer solar cells

scientific article published in August 2009

Elementary steps in electrical doping of organic semiconductors

scientific article published on 21 March 2018

Elucidating Batch-to-Batch Variation Caused by Homocoupled Side Products in Solution-Processable Organic Solar Cells

Emissive and charge-generating donor-acceptor interfaces for organic optoelectronics with low voltage losses

scientific article published on 01 April 2019

Energy-Gap Law for Photocurrent Generation in Fullerene-Based Organic Solar Cells: The Case of Low-Donor-Content Blends

scientific article published on 04 February 2019

Enhance performance of organic solar cells based on an isoindigo-based copolymer by balancing absorption and miscibility of electron acceptor

article

Erratum: Optical measurement of doping efficiency in poly(3-hexylthiophene) solutions and thin films [Phys. Rev. B 91, 085205 (2015)]

scholarly article published in Physical Review B

Excitation of Charge Transfer States and Low-Driving Force Triplet Exciton Dissociation at Planar Donor/Acceptor Interfaces

Exciton Diffusion Length and Charge Extraction Yield in Organic Bilayer Solar Cells

scientific article published in February 2017

Experimental and theoretical study of phase separation in ZnPc:C60 blends

Fast Organic Near-Infrared Photodetectors Based on Charge-Transfer Absorption

scientific article published on 2 November 2017

Flexible, light trapping substrates for organic photovoltaics

article

Fluorine-containing low-energy-gap organic dyes with low voltage losses for organic solar cells

article

Formation of a Ground-State Charge-Transfer Complex in Polyfluorene//[6,6]-Phenyl-C61 Butyric Acid Methyl Ester (PCBM) Blend Films and Its Role in the Function of Polymer/PCBM Solar Cells

Fourier-Transform Photocurrent Spectroscopy for a fast and highly sensitive spectral characterization of organic and hybrid solar cells

article

Ground-state charge-transfer complex formation in hybrid poly(3-hexyl thiophene):titanium dioxide solar cells

scholarly article by I. Haeldermans et al published December 2008 in Applied Physics Letters

High Mobility N-Type Transistors Based on Solution-Sheared Doped 6,13-Bis(triisopropylsilylethynyl)pentacene Thin Films

article

High performance all-polymer solar cell via polymer side-chain engineering

scientific article

High voltage vacuum-deposited CH3NH3PbI3–CH3NH3PbI3 tandem solar cells

Highly sensitive spectroscopic characterization of inorganic and organic heterojunctions for solar cells

Hole Transport in Low-Donor-Content Organic Solar Cells

scientific article published on 10 September 2018

Impact of molecular quadrupole moments on the energy levels at organic heterojunctions

scientific article published on 05 June 2019

Importance of the donor:fullerene intermolecular arrangement for high-efficiency organic photovoltaics

scientific article

Increased Open-Circuit Voltage of Organic Solar Cells by Reduced Donor-Acceptor Interface Area

article

Influence of Fullerene Ordering on the Energy of the Charge-Transfer State and Open-Circuit Voltage in Polymer:Fullerene Solar Cells

Influence of Meso and Nanoscale Structure on the Properties of Highly Efficient Small Molecule Solar Cells

Influence of fullerene photodimerization on the PCBM crystallization in polymer: Fullerene bulk heterojunctions under thermal stress

Influence of octanedithiol on the nanomorphology of PCPDTBT:PCBM blends studied by solid-state NMR

Influence of side groups on the performance of infrared absorbing aza-BODIPY organic solar cells

article

Interfacial Charge Transfer States in Condensed Phase Systems

scientific article published on 03 March 2016

Interlayer for Modified Cathode in Highly Efficient Inverted ITO-Free Organic Solar Cells

article

Intrinsic Detectivity Limits of Organic Near-Infrared Photodetectors

scientific article published on 19 October 2020

Intrinsic non-radiative voltage losses in fullerene-based organic solar cells

Light trapping for flexible organic photovoltaics

Low Band Gap Polymer Solar Cells With Minimal Voltage Losses

Microstructural and Electronic Origins of Open-Circuit Voltage Tuning in Organic Solar Cells Based on Ternary Blends

article

Mixed C60/C70 based fullerene acceptors in polymer bulk-heterojunction solar cells

article published in 2012

Modeling the temperature induced degradation kinetics of the short circuit current in organic bulk heterojunction solar cells

article

Molecular parameters responsible for thermally activated transport in doped organic semiconductors

scientific article published on 28 January 2019

Molecular vibrations reduce the maximum achievable photovoltage in organic solar cells

scientific article published on 20 March 2020

Nanoscale electrical characterization of organic photovoltaic blends by conductive atomic force microscopy

article

Near infrared laser annealing of CdTe and in-situ measurement of the evolution of structural and optical properties

On the Dissociation Efficiency of Charge Transfer Excitons and Frenkel Excitons in Organic Solar Cells: A Luminescence Quenching Study

article

On the Efficiency of Charge Transfer State Splitting in Polymer:Fullerene Solar Cells

article

On the origin of the open-circuit voltage of polymer–fullerene solar cells

article published in 2009

Optical Gaps of Organic Solar Cells as a Reference for Comparing Voltage Losses

article published in 2018

Optical In-Coupling in Organic Solar Cells

article

Optical absorption by defect states in organic solar cells

article

Optical display film as flexible and light trapping substrate for organic photovoltaics

scientific article published in May 2016

Optical measurement of doping efficiency in poly(3-hexylthiophene) solutions and thin films

scholarly article in Physical Review B, vol. 91 no. 8, February 2015

Organic Multiheterojunctions: Revelation of Interfacial Energetics in Organic Multiheterojunctions (Adv. Sci. 4/2017).

scientific article

Organic Photovoltaics: Low Band Gap Polymer Solar Cells With Minimal Voltage Losses (Adv. Energy Mater. 18/2016)

Organic narrowband near-infrared photodetectors based on intermolecular charge-transfer absorption

scientific article published on 5 June 2017

Orientation dependent molecular electrostatics drives efficient charge generation in homojunction organic solar cells

scientific article published on 15 September 2020

PEDOT:PSS with embedded TiO2 nanoparticles as light trapping electrode for organic photovoltaics

article

Phase behaviour of liquid-crystalline polymer/fullerene organic photovoltaic blends: thermal stability and miscibility

article

Plasmon-Induced Sub-Bandgap Photodetection with Organic Schottky Diodes

Polarization Imaging of Emissive Charge Transfer States in Polymer/Fullerene Blends

article

Polarization anisotropy of charge transfer absorption and emission of aligned polymer:fullerene blend films

scholarly article in Physical Review B, vol. 86 no. 3, July 2012

Polymer:Fullerene Bimolecular Crystals for Near-Infrared Spectroscopic Photodetectors

scientific article published on 4 July 2017

Publisher Correction: Elementary steps in electrical doping of organic semiconductors

scientific article published on 12 June 2018

Quantification of Quantum Efficiency and Energy Losses in Low Bandgap Polymer:Fullerene Solar Cells with High Open-Circuit Voltage

Re-evaluating the role of sterics and electronic coupling in determining the open-circuit voltage of organic solar cells.

scientific article

Recombination in Polymer:Fullerene Solar Cells with Open-Circuit Voltages Approaching and Exceeding 1.0 V

article

Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield

scientific article published on 14 March 2019

Reducing burn-in voltage loss in polymer solar cells by increasing the polymer crystallinity

article

Relating the open-circuit voltage to interface molecular properties of donor:acceptor bulk heterojunction solar cells

scholarly article in Physical Review B, vol. 81 no. 12, March 2010

Revelation of Interfacial Energetics in Organic Multiheterojunctions

scientific article published on December 2016

Role of Molecular Weight Distribution on Charge Transport in Semiconducting Polymers

Semi-Transparent Tandem Organic Solar Cells with 90% Internal Quantum Efficiency

scientific article published on 16 July 2012

Small Molecule Near-Infrared Boron Dipyrromethene Donors for Organic Tandem Solar Cells.

scientific article

Strong light-matter coupling for reduced photon energy losses in organic photovoltaics

scientific article published on 16 August 2019

Structural Factors That Affect the Performance of Organic Bulk Heterojunction Solar Cells

article

Structure–property relationships of oligothiophene–isoindigo polymers for efficient bulk-heterojunction solar cells

Sub-bandgap laser annealing of room temperature deposited polycrystalline CdTe

Sub-picosecond charge-transfer at near-zero driving force in polymer:non-fullerene acceptor blends and bilayers

scientific article published on 11 February 2020

Symmetry-breaking charge transfer in a zinc chlorodipyrrin acceptor for high open circuit voltage organic photovoltaics

scientific article

The Cost of Converting Excitons into Free Charge Carriers in Organic Solar Cells

scientific article published on 16 December 2019

The Crucial Influence of Fullerene Phases on Photogeneration in Organic Bulk Heterojunction Solar Cells

article

The Relation Between Open‐Circuit Voltage and the Onset of Photocurrent Generation by Charge‐Transfer Absorption in Polymer : Fullerene Bulk Heterojunction Solar Cells

The Roles of Structural Order and Intermolecular Interactions in Determining Ionization Energies and Charge-Transfer State Energies in Organic Semiconductors

article

The use of nanofibers of P3HT in bulk heterojunction solar cells: the effect of order and morphology on the performance of P3HT:PCBM blends

Toward bulk heterojunction polymer solar cells with thermally stable active layer morphology

Varying polymer crystallinity in nanofiber poly(3-alkylthiophene): PCBM solar cells: Influence on charge-transfer state energy and open-circuit voltage

Water based preparation method for ‘green’ solid-state polythiophene solar cells

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