Search Results - "Janssen, René A. J"
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Diketopyrrolopyrrole Polymers for Organic Solar Cells
Published in Accounts of chemical research (19-01-2016)“…Conjugated polymers have been extensively studied for application in organic solar cells. In designing new polymers, particular attention has been given to…”
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High Quantum Efficiencies in Polymer Solar Cells at Energy Losses below 0.6 eV
Published in Journal of the American Chemical Society (18-02-2015)“…Diketopyrrolopyrrole-based conjugated polymers bridged with thiazole units and different donors have been designed for polymer solar cells. Quantum…”
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Advances in Solution‐Processed Multijunction Organic Solar Cells
Published in Advanced materials (Weinheim) (01-03-2019)“…The efficiency of organic solar cells can benefit from multijunction device architectures, in which energy losses are substantially reduced. Herein, recent…”
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High Performance All-Polymer Solar Cells by Synergistic Effects of Fine-Tuned Crystallinity and Solvent Annealing
Published in Journal of the American Chemical Society (31-08-2016)“…Growing interests have been devoted to the design of polymer acceptors as potential replacement for fullerene derivatives for high-performance all polymer…”
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Efficient Tandem and Triple-Junction Polymer Solar Cells
Published in Journal of the American Chemical Society (17-04-2013)“…We demonstrate tandem and triple-junction polymer solar cells with power conversion efficiencies of 8.9% and 9.6% that use a newly designed, high molecular…”
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Morphology Optimization via Side Chain Engineering Enables All-Polymer Solar Cells with Excellent Fill Factor and Stability
Published in Journal of the American Chemical Society (18-07-2018)“…All-polymer solar cells (all-PSCs) composed of conjugated polymers as both donor and acceptor components in bulk heterojunction photoactive layers have…”
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High-Molecular-Weight Regular Alternating Diketopyrrolopyrrole-based Terpolymers for Efficient Organic Solar Cells
Published in Angewandte Chemie International Edition (05-08-2013)“…A regular alternating terpolymer design strategy is used to create a semiconducting polymer with tailored energy levels and optical band gap. Combined with a…”
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Universal Correlation between Fibril Width and Quantum Efficiency in Diketopyrrolopyrrole-Based Polymer Solar Cells
Published in Journal of the American Chemical Society (18-12-2013)“…For a series of six diketopyrrolopyrrole (DPP)-based conjugated polymers, we establish a direct correlation between their external quantum efficiencies (EQE)…”
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Deep Absorbing Porphyrin Small Molecule for High-Performance Organic Solar Cells with Very Low Energy Losses
Published in Journal of the American Chemical Society (17-06-2015)“…We designed and synthesized the DPPEZnP-TEH molecule, with a porphyrin ring linked to two diketopyrrolopyrrole units by ethynylene bridges. The resulting…”
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Small-Bandgap Semiconducting Polymers with High Near-Infrared Photoresponse
Published in Journal of the American Chemical Society (27-08-2014)“…Lowering the optical bandgap of conjugated polymers while maintaining a high efficiency for photoinduced charge transfer to suitable electron acceptors such as…”
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Predicting Morphologies of Solution Processed Polymer:Fullerene Blends
Published in Journal of the American Chemical Society (14-08-2013)“…The performance of solution processed polymer:fullerene thin film photovoltaic cells is largely determined by the nanoscopic and mesoscopic morphology of these…”
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Enhancing the Photocurrent in Diketopyrrolopyrrole-Based Polymer Solar Cells via Energy Level Control
Published in Journal of the American Chemical Society (22-08-2012)“…A series of diketopyrrolopyrrole (DPP)-based small band gap polymers has been designed and synthesized by Suzuki or Stille polymerization for use in polymer…”
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Ultralow dark current in near-infrared perovskite photodiodes by reducing charge injection and interfacial charge generation
Published in Nature communications (14-12-2021)“…Metal halide perovskite photodiodes (PPDs) offer high responsivity and broad spectral sensitivity, making them attractive for low-cost visible and…”
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Toward Practical Useful Polymers for Highly Efficient Solar Cells via a Random Copolymer Approach
Published in Journal of the American Chemical Society (31-08-2016)“…Using benzo[1,2-b:4,5-b′]dithiophene and two matched 5,6-difluorobenzo[2,1,3]thiadiazole-based monomers, we demonstrate that random copolymerization of two…”
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The effect of three-dimensional morphology on the efficiency of hybrid polymer solar cells
Published in Nature materials (01-10-2009)“…The efficiency of polymer solar cells critically depends on the intimacy of mixing of the donor and acceptor semiconductors used in these devices to create…”
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“Double-Cable” Conjugated Polymers with Linear Backbone toward High Quantum Efficiencies in Single-Component Polymer Solar Cells
Published in Journal of the American Chemical Society (27-12-2017)“…A series of “double-cable” conjugated polymers were developed for application in efficient single-component polymer solar cells, in which high quantum…”
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Narrow-Bandgap Diketo-Pyrrolo-Pyrrole Polymer Solar Cells: The Effect of Processing on the Performance
Published in Advanced materials (Weinheim) (02-07-2008)“…Solar cells based on a new conjugated donor polymer with alternating quaterthiophene and diketo pyrrolo‐pyrrole units in combination with C60 and C70 PCBM…”
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Compositional and Electric Field Dependence of the Dissociation of Charge Transfer Excitons in Alternating Polyfluorene Copolymer/Fullerene Blends
Published in Journal of the American Chemical Society (18-06-2008)“…The electro-optical properties of thin films of electron donor−acceptor blends of a fluorene copolymer (PF10TBT) and a fullerene derivative (PCBM) were…”
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Poly(diketopyrrolopyrrole−terthiophene) for Ambipolar Logic and Photovoltaics
Published in Journal of the American Chemical Society (25-11-2009)“…A new semiconducting polymer, PDPP3T, with alternating diketopyrrolopyrrole and terthiophene units is presented. PDPP3T has a small band gap of 1.3 eV and…”
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Optimizing Polymer Tandem Solar Cells
Published in Advanced materials (Weinheim) (23-02-2010)“…Optimized tandem solar cells based on wide‐and small‐bandgap polymer semiconductor cells reach an efficiency of 4.9%. In this tandem cell the short‐circuit…”
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