Search Results - "Hummelen, Jan C"
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Pathways to a New Efficiency Regime for Organic Solar Cells
Published in Advanced energy materials (01-10-2012)“…Three different theoretical approaches are presented to identify pathways to organic solar cells with power conversion efficiencies in excess of 20%. A…”
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Enhancing Molecular n‐Type Doping of Donor–Acceptor Copolymers by Tailoring Side Chains
Published in Advanced materials (Weinheim) (01-02-2018)“…In this contribution, for the first time, the molecular n‐doping of a donor–acceptor (D–A) copolymer achieving 200‐fold enhancement of electrical conductivity…”
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3
Efficient Perovskite Solar Cells over a Broad Temperature Window: The Role of the Charge Carrier Extraction
Published in Advanced energy materials (22-11-2017)“…The mechanism behind the temperature dependence of the device performance in hybrid perovskite solar cells (HPSCs) is investigated systematically. The power…”
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4
Observation of quantum interference in molecular charge transport
Published in Nature nanotechnology (25-03-2012)“…As the dimensions of a conductor approach the nanoscale, quantum effects begin to dominate, and it becomes possible to control the conductance through direct…”
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5
N-type organic thermoelectrics: demonstration of ZT > 0.3
Published in Nature communications (10-11-2020)“…The ‘phonon-glass electron-crystal’ concept has triggered most of the progress that has been achieved in inorganic thermoelectrics in the past two decades…”
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6
Electron Trapping in Higher Adduct Fullerene‐Based Solar Cells
Published in Advanced functional materials (23-09-2009)“…Here, the performance of bulk‐heterojunction solar cells based on a series of bisadduct analogues of commonly used derivatives of C60 and C70, such PCBMs and…”
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7
Strategy for Enhancing the Dielectric Constant of Organic Semiconductors Without Sacrificing Charge Carrier Mobility and Solubility
Published in Advanced functional materials (07-01-2015)“…Current organic semiconductors for organic photovoltaics (OPV) have relative dielectric constants (relative permittivities, ε r) in the range of 2–4. As a…”
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8
Small Bandgap Polymers for Organic Solar Cells (Polymer Material Development in the Last 5 Years)
Published in Polymer Reviews (01-08-2008)“…During the last decade the field of polymer photovoltaics has seen a tremendous improvement in both device efficiency and understanding of the underlying…”
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Electric-Field Control of Interfering Transport Pathways in a Single-Molecule Anthraquinone Transistor
Published in Nano letters (12-08-2015)“…It is understood that molecular conjugation plays an important role in charge transport through single-molecule junctions. Here, we investigate electron…”
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10
Increasing the Open Circuit Voltage of Bulk-Heterojunction Solar Cells by Raising the LUMO Level of the Acceptor
Published in Organic letters (15-02-2007)“…We report the synthesis, characterization, and electrochemical properties of ten new fullerene derivatives for usage in organic solar cells. The phenyl ring of…”
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11
Ultrafast Hole-Transfer Dynamics in Polymer/PCBM Bulk Heterojunctions
Published in Advanced functional materials (25-05-2010)“…Ultrafast dynamics of the hole‐transfer process from methanofullerene to a polymer in a polymer/PCBM bulk heterojunction are directly resolved. Injection of…”
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12
Formation of High-Quality Self-Assembled Monolayers of Conjugated Dithiols on Gold: Base Matters
Published in Journal of the American Chemical Society (06-04-2011)“…This Article reports a systematic study on the formation of self-assembled monolayers (SAMs) of conjugated molecules for molecular electronic (ME) devices. We…”
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13
Photovoltaic Performance of an Ultrasmall Band Gap Polymer
Published in Organic letters (19-02-2009)“…A conjugated polymer (PBTTQ) that consists of alternating electron-rich bithiophene and electron-deficient thiadiazoloquinoxaline units was synthesized via…”
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14
An MCBJ case study: The influence of π-conjugation on the single-molecule conductance at a solid/liquid interface
Published in Beilstein journal of nanotechnology (18-10-2011)“…π-Conjugation plays an important role in charge transport through single molecular junctions. We describe in this paper the construction of a mechanically…”
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15
Statistical analysis of single-molecule breaking traces
Published in Physica Status Solidi. B: Basic Solid State Physics (01-11-2013)“…We present an experimental study of charge transport through single oligo(phenylene‐ethynylene) (OPE3) molecules and anthracene substituted OPE3 (OPE3‐AC)…”
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16
High mobility n-channel organic field-effect transistors based on soluble C60 and C70 fullerene derivatives
Published in Synthetic metals (01-07-2008)Get full text
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17
Tracing photoinduced electron transfer process in conjugated polymer/fullerene bulk heterojunctions in real time
Published in Chemical physics letters (01-06-2001)“…Ultrafast spectroscopic studies using an optical excitation of a conjugated polymer by sub-10-fs pulses are reported. Phonon modes which are strongly coupled…”
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18
New C84 Derivative and Its Application in a Bulk Heterojunction Solar Cell
Published in Chemistry of materials (27-06-2006)“…We report here the synthesis and characteristics of a new C84 adduct ([84]PCBM), realized via a diazoalkane addition reaction. [84]PCBM was obtained as a…”
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19
Large negative differential conductance in single-molecule break junctions
Published in Nature nanotechnology (31-08-2014)Get full text
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20
Synthesis and Properties of an Anthraquinone-Based Redox Switch for Molecular Electronics
Published in Organic letters (25-05-2006)“…The synthesis of a molecular wire bearing an anthraquinone core and thioacetyl end groups for gold electrode binding is described. A model anthraquinone…”
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