Publications
228 results found
Buchaca-Domingo E, Vandewal K, Fei Z, et al., 2015, Direct correlation of charge transfer absorption with molecular donor: acceptor interfacial area via photothermal deflection spectroscopy, Journal of the American Chemical Society, Vol: 137, Pages: 5256-5259, ISSN: 0002-7863
Here we show that the charge transfer (CT) absorption signal in bulk-heterojunction solar cell blends, measured by photothermal deflection spectroscopy, is directly proportional to the density of molecular donor:acceptor interfaces. Since the optical transitions from the ground state to the interfacial CT state are weakly allowed at photon energies below the optical gap of both the donor and acceptor, we can exploit the use of this sensitive linear absorption spectroscopy for such quantification. Moreover, we determine the absolute molar extinction coefficient of the CT transition for an archetypical polymer:fullerene interface. The latter is ∼100 times lower than the extinction coefficient of the donor chromophore involved, allowing us to experimentally estimate the transition dipole moment as 0.3 D and the electronic coupling between the ground and CT states to be on the order of 30 meV.
Scarongella M, De Jonghe-Risse J, Buchaca-Domingo E, et al., 2015, A Close Look at Charge Generation in Polymer:Fullerene Blends with Microstructure Control, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 137, Pages: 2908-2918, ISSN: 0002-7863
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- Citations: 70
Hellmann C, Treat ND, Scaccabarozzi AD, et al., 2015, Solution Processing of Polymer Semiconductor: Insulator Blends-Tailored Optical Properties Through Liquid-Liquid Phase Separation Control, JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, Vol: 53, Pages: 304-310, ISSN: 0887-6266
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- Citations: 27
Nielsen CB, Ashraf RS, Treat ND, et al., 2015, 2,1,3-Benzothiadiazole-5,6-Dicarboxylic Imide - A Versatile Building Block for Additive-and Annealing-Free Processing of Organic Solar Cells with Effi ciencies Exceeding 8%, ADVANCED MATERIALS, Vol: 27, Pages: 948-953, ISSN: 0935-9648
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- Citations: 79
Fleischli FD, Ghasdian N, Georgiou TK, et al., 2015, Tailoring the optical properties of poly(3-hexylthiophene) by emulsion processing using polymeric macrosurfactants, Journal of Materials Chemistry C, Vol: 3, Pages: 2065-2071, ISSN: 2050-7534
Botiz I, Freyberg P, Leordean C, et al., 2015, Emission properties of MEH-PPV in thin films simultaneously illuminated and annealed at different temperatures, SYNTHETIC METALS, Vol: 199, Pages: 33-36, ISSN: 0379-6779
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- Citations: 21
Paquin F, Rivnay J, Salleo A, et al., 2015, Multi-phase microstructures drive exciton dissociation in neat semicrystalline polymeric semiconductors, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 10715-10722, ISSN: 2050-7526
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- Citations: 542
Bettinger CJ, Stingelin N, 2015, <i>Journal of Materials Chemistry B &</i> <i>C</i> joint themed issue: organic bioelectronics, JOURNAL OF MATERIALS CHEMISTRY B, Vol: 3, Pages: 4945-4946, ISSN: 2050-750X
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- Citations: 1
Bettinger CJ, Stingelin N, 2015, <i>Journal of Materials Chemistry B</i> & <i>C</i> joint themed issue: organic bioelectronics, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 6405-6406, ISSN: 2050-7526
De Jonghe-Risse J, Causa M, Buchaca-Domingo E, et al., 2015, Using the Stark effect to understand charge generation in organic solar cells, 14th Conference on Physical Chemistry of Interfaces and Nanomaterials, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
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- Citations: 2
Sieval AB, Treat ND, Rozema D, et al., 2015, Diels-Alders adducts of C<sub>60</sub> and esters of 3-(1-indenyl)-propionic acid: alternatives for [60]PCBM in polymer:fullerene solar cells, CHEMICAL COMMUNICATIONS, Vol: 51, Pages: 8126-8129, ISSN: 1359-7345
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- Citations: 11
Jahnke AA, Yu L, Coombs N, et al., 2015, Polytellurophenes provide imaging contrast towards unravelling the structure-property-function relationships in semiconductor:insulator polymer blends, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 3767-3773, ISSN: 2050-7526
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- Citations: 23
Dou F, Buchaca-Domingo E, Sakowicz M, et al., 2015, The effect of phase morphology on the nature of long-lived charges in semiconductor polymer:fullerene systems, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 3722-3729, ISSN: 2050-7526
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- Citations: 20
Sripathy K, MacQueen RW, Peterson JR, et al., 2015, Highly efficient photochemical upconversion in a quasi-solid organogel, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 3, Pages: 616-622, ISSN: 2050-7526
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- Citations: 66
Treat ND, Westacott P, Stingelin N, 2015, The Power of Materials Science Tools for Gaining Insights into Organic Semiconductors, ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 45, Vol: 45, Pages: 459-490, ISSN: 1531-7331
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- Citations: 36
Shaw J, Zhong H, Yau CP, et al., 2014, Alternating Copolymers Incorporating Dithienogemolodithiophene for Field-Effect Transistor Applications, MACROMOLECULES, Vol: 47, Pages: 8602-8610, ISSN: 0024-9297
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- Citations: 21
Guilbert AAY, Schmidt M, Bruno A, et al., 2014, Spectroscopic Evaluation of Mixing and Crystallinity of Fullerenes in Bulk Heterojunctions, ADVANCED FUNCTIONAL MATERIALS, Vol: 24, Pages: 6972-6980, ISSN: 1616-301X
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- Citations: 26
Brambilla L, Tommasini M, Botiz I, et al., 2014, Regio-Regular Oligo and Poly(3-hexyl thiophene): Precise Structural Markers from the Vibrational Spectra of Oligomer Single Crystals., MACROMOLECULES, Vol: 47, Pages: 6730-6739, ISSN: 0024-9297
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- Citations: 36
Gnoli A, Ustunel H, Toffoli D, et al., 2014, Bis(triisopropylsilylethynyl)pentacene/Au(111) Interface: Coupling, Molecular Orientation, and Thermal Stability, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 118, Pages: 22522-22532, ISSN: 1932-7447
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- Citations: 11
Yaacobi-Gross N, Treat ND, Pattanasattayavong P, et al., 2014, High-Efficiency Organic Photovoltaic Cells Based on the Solution-Processable Hole Transporting Interlayer Copper Thiocyanate (CuSCN) as a Replacement for PEDOT:PSS, Advanced Energy Materials, Vol: 5, ISSN: 1614-6840
The use of copper thiocyanate (CuSCN) as a universal solution-processable and highly transparent hole-transporting layer in organic bulk-heterojunction photovoltaic cells is demonstrated. When CuSCN is employed as a replacement for the commonly used poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS), organic solar cells with maximum power conversion efficiency of 8%, are realized; this value is 1.27 times higher than that for optimized control cells based on PEDOT:PSS.
Provencher F, Berube N, Parker AW, et al., 2014, Direct observation of ultrafast long-range charge separation at polymer-fullerene heterojunctions, NATURE COMMUNICATIONS, Vol: 5, ISSN: 2041-1723
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- Citations: 132
Lindqvist C, Bergqvist J, Feng C-C, et al., 2014, Fullerene Nucleating Agents: A Route Towards Thermally Stable Photovoltaic Blends, ADVANCED ENERGY MATERIALS, Vol: 4, ISSN: 1614-6832
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- Citations: 61
Taroni PJ, Hoces I, Stingelin N, et al., 2014, Thermoelectric Materials: A Brief Historical Survey from Metal Junctions and Inorganic Semiconductors to Organic Polymers, ISRAEL JOURNAL OF CHEMISTRY, Vol: 54, Pages: 534-552, ISSN: 0021-2148
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- Citations: 29
Marsh HS, Reid OG, Barnes G, et al., 2014, Control of Polythiophene Film Microstructure and Charge Carrier Dynamics Through Crystallization Temperature, JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, Vol: 52, Pages: 700-707, ISSN: 0887-6266
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- Citations: 12
Botiz I, Freyberg P, Leordean C, et al., 2014, Enhancing the Photoluminescence Emission of Conjugated MEH-PPV by Light Processing, ACS APPLIED MATERIALS & INTERFACES, Vol: 6, Pages: 4974-4979, ISSN: 1944-8244
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- Citations: 34
Botiz I, Stingelin N, 2014, Influence of Molecular Conformations and Microstructure on the Optoelectronic Properties of Conjugated Polymers, MATERIALS, Vol: 7, Pages: 2273-2300, ISSN: 1996-1944
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- Citations: 87
Buchaca-Domingo E, Ferguson AJ, Jamieson FC, et al., 2014, Additive-assisted supramolecular manipulation of polymer:fullerene blend phase morphologies and its influence on photophysical processes, MATERIALS HORIZONS, Vol: 1, Pages: 270-279, ISSN: 2051-6347
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- Citations: 56
Marshall J, Schroeder BC, Bronstein H, et al., 2014, Benzocarborano[2,1-<i>b</i>:3,4-<i>b</i>′]dithiophene Containing Conjugated Polymers: Synthesis, Characterization, and Optoelectronic Properties, MACROMOLECULES, Vol: 47, Pages: 89-96, ISSN: 0024-9297
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- Citations: 18
Janka M, Tuukkanen S, Tuorila H, et al., 2014, Use of microcutting for high throughput electrode patterning on a flexible substrate, JOURNAL OF MICROMECHANICS AND MICROENGINEERING, Vol: 24, ISSN: 0960-1317
Simonet M, Stingelin N, Wismans JGF, et al., 2014, Tailoring the void space and mechanical properties in electrospun scaffolds towards physiological ranges, JOURNAL OF MATERIALS CHEMISTRY B, Vol: 2, Pages: 305-313, ISSN: 2050-750X
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- Citations: 35
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