A5015859410- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Silicon and Solar Cell Technologies
- Thin-Film Transistor Technologies
- Nanomaterials and Printing Technologies
- Fullerene Chemistry and Applications
- Copper-based nanomaterials and applications
- Additive Manufacturing and 3D Printing Technologies
- Organic Light-Emitting Diodes Research
- Molecular Junctions and Nanostructures
- Silicone and Siloxane Chemistry
- Advancements in Battery Materials
- Semiconductor materials and interfaces
- ZnO doping and properties
- Thermography and Photoacoustic Techniques
- Photovoltaic Systems and Sustainability
- Photovoltaic System Optimization Techniques
- Green IT and Sustainability
- Extraction and Separation Processes
- Advanced biosensing and bioanalysis techniques
Northumbria University
2024
Holst Centre (Netherlands)
2018-2023
Energy Research Centre of the Netherlands
2016
Eindhoven University of Technology
2010-2014
Dutch Polymer Institute
2010-2014
A regular alternating terpolymer design strategy is used to create a semiconducting polymer with tailored energy levels and optical band gap. Combined modified synthetic procedure for the polymerization reaction, high-molecular-weight polymers of as well parent co-polymers were obtained high efficiencies (up 8.0 %) in organic solar cells when combined [70]PCBM. As service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed...
A new easily accessible, high molecular weight, alternating dithieno-diketopyrrolopyrrolophenylene copolymer provides electron and hole mobilities exceeding 0.02 cm2 V−1 s−1 in FETs AM1.5 power conversion efficiencies of 4.6% 5.5% solar cells when combined with [60]PCBM [70]PCBM. The performance the strongly depends on use a processing agent. Semiconducting copolymers diketopyrrolopyrrole (DPP) units are emerging as interesting materials for optoelectronic applications field-effect...
The performance of solution processed polymer:fullerene thin film photovoltaic cells is largely determined by the nanoscopic and mesoscopic morphology these blends that formed during drying layer. Although blend morphologies have been studied in detail using a variety microscopic, spectroscopic, scattering techniques large degree control has obtained, current understanding processes involved limited. Hence, predicting optimized processing conditions corresponding device remains challenge. We...
Monolithic two-terminal (2T) perovskite/CuInSe2 (CIS) tandem solar cells (TSCs) combine the promise of an efficient photovoltaic (PV) technology with simplicity all-thin-film device architecture that is compatible flexible and lightweight PV. In this work, we present first-ever 2T perovskite/CIS TSC a power conversion efficiency (PCE) approaching 25% (23.5% certified, area 0.5 cm2). The relatively planar surface profile narrow band gap (∼1.03 eV) our CIS bottom cell allow us to exploit...
Solution processed polymer tandem solar cells that combine wide and small bandgap absorber layers reach a power conversion efficiency of 7% in series configuration. This represents 20% increase compared to the best single junction made with individual active shows configuration reduces transmission thermalization losses converting sunlight. Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset....
The use of diiodooctane as processing additive for construction PCPDTBT:PCBM solar cells results in a profound change photophysical behavior this blend. In the improved morphology obtained with additive, recombination charge carriers to lowest triplet excited state is suppressed. This contributes boost power conversion efficiency induced by agent.
Three isomeric π-conjugated molecules based on diketopyrrolopyrrole and bithiophene (DPP2T) substituted with hexyl side chains in different positions are investigated for use solution-processed organic solar cells. Efficiencies greater than 3% obtained when a mild annealing step is used. The position of the DDP2Ts has major influence optical electronic properties these thin semicrystalline films. By combining absorption fluorescence spectroscopy, microscopy (AFM TEM) scattering techniques...
The morphology of the active layer in polymer:fullerene solar cells is a key parameter for performance. We compare bilayer poly(3-hexylthiophene)/[6,6]-phenyl-C(61)-butyric acid methyl ester (P3HT/PCBM) cell devices produced from orthogonal solvents before and after thermal annealing with P3HT:PCBM bulk heterojunction single solvent. By comparing spectral shape magnitude experimental theoretically modeled EQEs we show that P3HT/PCBM bilayers made via solution processing do not lead to sharp...
Abstract The limits of maximizing the open‐circuit voltage V oc in solar cells based on poly[2,7‐(9,9‐didecylfluorene)‐ alt ‐5,5‐(4,7‐di‐2‐thienyl‐2,1,3‐benzothiadiazole)] (PF10TBT) as a donor using different fullerene derivatives acceptor are investigated. Bulk heterojunction with PF10TBT and [6,6]‐phenyl‐C 61 ‐butyric acid methyl ester (PCBM) give over 1 power conversion efficiency 4.2%. Devices which is blended bisadduct an even higher , but also strong decrease short circuit current ( J...
Abstract The preparation and characterization of butylene‐terminated silicon nanoparticles (SiNPs) their functionalization using thiol‐ene chemistry is described, as well the coupling DNA strands. Bromide‐terminated SiNPs were prepared by means oxidation magnesium silicide functionalized with butylene chains through treatment corresponding Grignard reagent. successful was confirmed NMR FTIR spectroscopy. TEM measurements revealed a silicon‐core diameter (2.4±0.5) nm. fluorescence emission...
Eine modifizierte Syntheseprozedur ermöglichte die Bildung eines hochmolekularen regulär alternierenden Terpolymers, das als Halbleiter mit maßgeschneiderten Energieniveaus und optischer Bandlücke fungiert. Organische Solarzellen des Terpolymers in Kombination [70]PCBM zeigten hohe Umwandlungseffizienzen von bis zu 8 %.
ABSTRACT Among reliability studies on perovskite photovoltaics (PV) cells and modules, partial shading degradation is a crucial under‐investigated topic. In the present work, we use combination of mapping electroluminescence (EL), photoluminescence (PL), illuminated lock‐in thermography (ILIT) to gain insight into reverse bias mechanisms induced by monolithically interconnected module. Spatial inhomogeneities across cell length are shown play an important role in degradation. A module was...
Abstract In this work we employ the transfer matrix method for analysis of optical materials properties to simulate and optimize monolithic tandem solar cell devices based on CuIn 1− x Ga Se 2 , CI(G)S, perovskite (PVK) absorbers. By finding models that fit well experimental data CI(G)S cell, semitransparent (PSC) PVK/CI(G)S were able perform a detailed loss allowed us determine sources parasitic absorption. We found better substitute transport layers increase power conversion efficiency...
The interconnection layer (ICL) that connects adjacent subcells electrically and optically in solution‐processed multi‐junction polymer solar cells must meet functional requirements terms of work functions, conductivity, transparency, but also be compatible with the multiple stack processing deposition conditions. Using a combination poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate, diluted near azeotropic water/ n ‐propanol dispersions as hole transport layer, ZnO nanoparticles,...
To determine the role of photon energy on charge generation in bulk heterojunction solar cells, bias voltage dependence photocurrent for excitation with energies below and above optical band gap is investigated two structurally related polymer cells. Charges generated (poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (C-PCPDTBT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) cells via low-energy transfer (CT) state, situated gap,...
Positron annihilation depth-profiling is used as an innovative tool to monitor the evolution of vacancy defects in two series ZnO:Al transparent conductive oxide (TCO) layers for Cu(In,Ga)Se2 (CIGS) solar cells under accelerated degradation at 85 °C/85% relative humidity. The first are deposited directly on flat glass substrates, leading low densities (extended) grain boundaries ZnO:Al. These only show increase open volume upon near-surface range. second more corrugated surface CdS/CIGS/Mo...
Back end interconnection technology is presented for CIGS using laser scribing and inkjet printing of dielectric material. Shunt-free shown, which essential in the back approach monolithic serial interconnection. Full interconnected mini-modules 20×20cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> were made show no electrical losses compared to reference cells. These results feasibility complete module manufacturing after full area...
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionCorrection to Preparation, Characterization, and Surface Modification of Trifluoroethyl Ester-Terminated Silicon NanoparticlesWouter Biesta, Barend van Lagen, Veronique S. Gevaerts, Antonius T. M. Marcelis, Jos J. Paulusse, Michel W. F. Nielen, Han Zuilhof*Cite this: Chem. Mater. 2012, 24, 4782Publication Date (Web):December 3, 2012Publication History Published online3 December 2012Published...
Monolithic interconnection technology is presented for CIGS using laser scribing and inkjet printing of dielectric conductive inks. After deposition all active layers the solar cell stack a shunt-free P1 P3 are scribed. A material printed P2 scribe made in between isolated scribes. In last step deposited to connect P2, over insulating front-contact neighboring cell. With this back end mini-modules were TCO or Ag nanoparticle based The final modules show no electrical losses compared reference cells.
Thin- film photovoltaics (PV), and in particular Copper Indium Gallium Selenide (CIGS) technologies, will play an important role the turnaround inevitable energy policy due to their high efficiencies, easy installation, product flexibility, a lower carbon footprint when compared silicon solar cells. However, delicate processing associated costs manufacturing of CIGS cells, inline quality control during production is hot topic for PV industry. In this work we demonstrate that...
Digital printing of organic photovoltaic devices is presented as a viable option for the creation increasingly complex device structures. Fully printed tandem junction were made that show perfect summation open circuit voltages subcells. These results feasibility complete digitally stacks providing product designers with unprecedented freedom design integration functionality in new products.