Imperial College London

ProfessorMartinHeeney

Faculty of Natural SciencesDepartment of Chemistry

Professor of Organic Materials
 
 
 
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Contact

 

+44 (0)20 7594 1248m.heeney Website

 
 
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Location

 

401GMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Publication Type
Year
to

315 results found

Marshall J, Fei Z, Yau CP, Yaacobi-Gross N, Rossbauer S, Anthopoulos TD, Watkins SE, Beavis P, Heeney Met al., 2014, Incorporation of benzocarborane into conjugated polymer systems: synthesis, characterisation and optoelectronic properties, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 2, Pages: 232-239, ISSN: 2050-7526

Journal article

Bannock JH, Al-Hashimi M, Krishnadasan SH, Halls JJM, Heeney M, de Mello JCet al., 2014, Controlled synthesis of conjugated random copolymers in a droplet-based microreactor, Materials Horizons

Journal article

Koch FPV, Rivnay J, Foster S, Mueller C, Downing JM, Buchaca-Domingo E, Westacott P, Yu L, Yuan M, Baklar M, Fei Z, Luscombe C, McLachlan MA, Heeney M, Rumbles G, Silva C, Salleo A, Nelson J, Smith P, Stingelin Net al., 2013, The impact of molecular weight on microstructure and charge transport in semicrystalline polymer Semiconductors poly(3-hexylthiophene), a model study, PROGRESS IN POLYMER SCIENCE, Vol: 38, Pages: 1978-1989, ISSN: 0079-6700

Journal article

Koch FPV, Heeney M, Smith P, 2013, Thermal and Structural Characteristics of Oligo(3-hexylthiophene)s (3HT)(n), n=4-36, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 13699-13709, ISSN: 0002-7863

Journal article

Koch FPV, Smith P, Heeney M, 2013, "Fibonacci's Route" to Regioregular Oligo(3-hexylthiophene)s, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 13695-13698, ISSN: 0002-7863

Journal article

Musser AJ, Al-Hashimi M, Maiuri M, Brida D, Heeney M, Cerullo G, Friend RH, Clark Jet al., 2013, Activated Singlet Exciton Fission in a Semiconducting Polymer, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 12747-12754, ISSN: 0002-7863

Journal article

Mei Y, Loth MA, Payne M, Zhang W, Smith J, Day CS, Parkin SR, Heeney M, McCulloch I, Anthopoulos TD, Anthony JE, Jurchescu ODet al., 2013, High Mobility Field-Effect Transistors with Versatile Processing from a Small-Molecule Organic Semiconductor, ADVANCED MATERIALS, Vol: 25, Pages: 4352-4357, ISSN: 0935-9648

Journal article

Meager I, Ashraf RS, Rossbauer S, Bronstein H, Donaghey JE, Marshall J, Schroeder BC, Heeney M, Anthopoulos TD, McCulloch Iet al., 2013, Alkyl Chain Extension as a Route to Novel Thieno[3,2-b]thiophene Flanked Diketopyrrolopyrrole Polymers for Use in Organic Solar Cells and Field Effect Transistors, MACROMOLECULES, Vol: 46, Pages: 5961-5967, ISSN: 0024-9297

Journal article

Heeney MJ, Al-Raqa SA, Auger A, Burnham PM, Cammidge AN, Chambrier I, Cook MJet al., 2013, Routes to some 3,6-disubstituted phthalonitriles and examples of phthalocyanines derived therefrom. An overview, JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, Vol: 17, Pages: 649-664, ISSN: 1088-4246

Journal article

Zhang X, Bronstein H, Kronemeijer AJ, Smith J, Kim Y, Kline RJ, Richter LJ, Anthopoulos TD, Sirringhaus H, Song K, Heeney M, Zhang W, McCulloch I, DeLongchamp DMet al., 2013, Molecular origin of high field-effect mobility in an indacenodithiophene-benzothiadiazole copolymer, NATURE COMMUNICATIONS, Vol: 4, ISSN: 2041-1723

Journal article

Lee MJ, Chen Z, di Pietro R, Heeney M, Sirringhaus Het al., 2013, Electrooptical Spectroscopy of Uniaxially Aligned Polythiophene Films in Field-Effect Transistors, CHEMISTRY OF MATERIALS, Vol: 25, Pages: 2075-2082, ISSN: 0897-4756

Journal article

Nuccio L, Willis M, Schulz L, Fratini S, Messina F, D'Amico M, Pratt FL, Lord JS, McKenzie I, Loth M, Purushothaman B, Anthony J, Heeney M, Wilson RM, Hernandez I, Cannas M, Sedlak K, Kreouzis T, Gillin WP, Bernhard C, Drew AJet al., 2013, Importance of Spin-Orbit Interaction for the Electron Spin Relaxation in Organic Semiconductors, PHYSICAL REVIEW LETTERS, Vol: 110, ISSN: 0031-9007

Journal article

Tsoi WC, Zhang W, Hollis JR, Suh M, Heeney M, McCulloch I, Kim J-Set al., 2013, In-situ monitoring of molecular vibrations of two organic semiconductors in photovoltaic blends and their impact on thin film morphology, Applied Physics Letters, Vol: 102, ISSN: 1077-3118

We report in-situ simultaneous monitoring of molecular vibrations of two components in organic photovoltaic blends using resonant Raman spectroscopy. Blend films were composed of a low bandgap copolymer thieno[3,2-b]thiophene-diketopyrrolopyrrole (DPPTTT) and (6,6)-phenyl-C71-butyric acid ester (PC 70BM). Changes in Raman spectra associated with crystallization processes of each component and their impact on thin film morphology were studied during thermal annealing and cooling processes. Transition temperatures to crystalline phases in blends were measured at ∼150 °C and ∼170 °C for DPPTTT and PC 70BM, respectively. Such phase changes lead to modifications in local chemical composition reducing relative Raman peak intensities (IPC70BM/IDPPTTT) from ∼0.4 in PC 70BM-rich domains to ∼0.15 in homogeneous areas.

Journal article

Himmelberger S, Dacuna J, Rivnay J, Jimison LH, McCarthy-Ward T, Heeney M, McCulloch I, Toney MF, Salleo Aet al., 2013, Effects of Confinement on Microstructure and Charge Transport in High Performance Semicrystalline Polymer Semiconductors, ADVANCED FUNCTIONAL MATERIALS, Vol: 23, Pages: 2091-2098, ISSN: 1616-301X

Journal article

Marshall J, Heeney MJ, Beavis P, 2013, Development of fully conjugated polymers containing benzocarborane, 245th National Spring Meeting of the American-Chemical-Society (ACS), Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727

Conference paper

Zhong H, Li Z, Deledalle F, Fregoso EC, Shahid M, Fei Z, Nielsen CB, Yaacobi-Gross N, Rossbauer S, Anthopoulos TD, Durrant JR, Heeney Met al., 2013, Fused Dithienogermolodithiophene Low Band Gap Polymers for High-Performance Organic Solar Cells without Processing Additives, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 135, Pages: 2040-2043, ISSN: 0002-7863

Journal article

Fei Z, Gao X, Smith J, Pattanasattayavong P, Domingo EB, Stingelin N, Watkins SE, Anthopoulos TD, Kline RJ, Heeney Met al., 2013, Near Infrared Absorbing Soluble Poly(cyclopenta[2,1-b:3,4-b ']dithiophen-4-one)vinylene Polymers Exhibiting High Hole and Electron Mobilities in Ambient Air, CHEMISTRY OF MATERIALS, Vol: 25, Pages: 59-68, ISSN: 0897-4756

Journal article

Zhong H, Li Z, Buchaca-Domingo E, Rossbauer S, Watkins SE, Stingelin N, Anthopoulos TD, Heeney Met al., 2013, Low band gap dithienogermolodithiophene copolymers with tunable acceptors and side-chains for organic solar cells, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 14973-14981, ISSN: 2050-7488

Journal article

Economopoulos SP, Chochos CL, Ioannidou HA, Neophytou M, Charilaou C, Zissimou GA, Frost JM, Sachetan T, Shahid M, Nelson J, Heeney M, Bradley DDC, Itskos G, Koutentis PA, Choulis SAet al., 2013, Novel BODIPY-based conjugated polymers donors for organic photovoltaic applications, RSC ADVANCES, Vol: 3, Pages: 10221-10229, ISSN: 2046-2069

Journal article

Westacott P, Tumbleston JR, Shoaee S, Fearn S, Bannock JH, Gilchrist JB, Heutz S, DeMello J, Heeney M, Ade H, Durrant J, McPhail DS, Stingelin Net al., 2013, On the role of intermixed phases in organic photovoltaic blends, Energy & Environmental Science, ISSN: 1754-5692

Journal article

Shahid M, Padamsey N, Labram J, Anthopoulos TD, Heeney Met al., 2013, Synthesis of tetraselenophenoporphyrazine and its application in transistor devices, Journal of Materials Chemistry C, Vol: 1, Pages: 6198-6201, ISSN: 2050-7526

We report the first synthesis of a soluble selenophene containing porphyrazine derivative, tetraselenophenoporphyrazine (SePz). Thin films of SePz exhibit a broad and strong absorption in the visible to near-IR region, which is red shifted compared to the thiophene analogue, and demonstrate p-type carrier mobilities of 10-2 cm2 V-1 s-1 in bottom gate, bottom contact field effect transistors.

Journal article

Bannock JH, Krishnadasan SH, Nightingale AM, Yau CP, Khaw K, Burkitt D, Halls JJM, Heeney H, de Mello JCet al., 2012, Continuous Synthesis of Device-Grade Semiconducting Polymers in Droplet-Based Microreactors, Advanced Functional Materials

A method is reported for the controlled synthesis of device-grade semiconducting polymers, utilizing a droplet-based microfluidic reactor. Using poly(3-hexylthiophene) (P3HT) as a test material, the reactor is shown to provide a controlled and stable environment for polymer synthesis, enabling control of molecular weight via tuning of flow conditions, reagent composition or temperature. Molecular weights of up to 92 000 Da are readily attainable, without leakage or reactor fouling. The method avoids the usual deterioration in materials quality that occurs when conventional batch syntheses are scaled from the sub-gram level to higher quantities, with a prototype five-channel reactor producing material of consistent molecular weight distribution and high regioregularity (>98%) at a rate of ≈60 g/day. The droplet-synthesized P3HT compares favorably with commercial material in terms of absorption spectrum, polydispersity, regioregularity, and crystallinity, yielding power conversion efficiencies of up to 4% in bulk heterojunction solar cells with [6,6]-phenyl-C61-butyric acid methyl ester.

Journal article

Miller NC, Cho E, Junk MJN, Gysel R, Risko C, Kim D, Sweetnam S, Miller CE, Richter LJ, Kline RJ, Heeney M, McCulloch I, Amassian A, Acevedo-Feliz D, Knox C, Hansen MR, Dudenko D, Chmelka BF, Toney MF, Bredas J-L, McGehee MDet al., 2012, Use of X-Ray Diffraction, Molecular Simulations, and Spectroscopy to Determine the Molecular Packing in a Polymer-Fullerene Bimolecular Crystal, ADVANCED MATERIALS, Vol: 24, Pages: 6071-+, ISSN: 0935-9648

Journal article

Tsoi WC, James DT, Domingo EB, Kim JS, Al-Hashimi M, Murphy CE, Stingelin N, Heeney M, Kim J-Set al., 2012, Effects of a Heavy Atom on Molecular Order and Morphology in Conjugated Polymer:Fullerene Photovoltaic Blend Thin Films and Devices, ACS NANO, Vol: 6, Pages: 9646-9656, ISSN: 1936-0851

Journal article

Miller NC, Cho E, Gysel R, Risko C, Coropceanu V, Miller CE, Sweetnam S, Sellinger A, Heeney M, McCulloch I, Bredas J-L, Toney MF, McGehee MDet al., 2012, Factors Governing Intercalation of Fullerenes and Other Small Molecules Between the Side Chains of Semiconducting Polymers Used in Solar Cells, ADVANCED ENERGY MATERIALS, Vol: 2, Pages: 1208-1217, ISSN: 1614-6832

Journal article

Treat ND, Varotto A, Takacs CJ, Batara N, Al-Hashimi M, Heeney MJ, Heeger AJ, Wudl F, Hawker CJ, Chabinyc MLet al., 2012, Polymer-Fullerene Miscibility: A Metric for Screening New Materials for High-Performance Organic Solar Cells, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 134, Pages: 15869-15879, ISSN: 0002-7863

Journal article

McGlashon A, Zhang W, Smilgies DM, Shkunov M, Genevicius K, Whitehead KS, Amassian A, Malliaras GG, Bradley DDC, Heeney M, Campbell AJet al., 2012, Spectroscopic and morphological investigation of conjugated photopolymerisable quinquethiophene liquid crystals, CURRENT APPLIED PHYSICS, Vol: 12, Pages: E59-E66, ISSN: 1567-1739

Journal article

Zhong H, Smith J, Rossbauer S, White AJP, Anthopoulos TD, Heeney Met al., 2012, Air-Stable and High-Mobility n-Channel Organic Transistors Based on Small-Molecule/Polymer Semiconducting Blends, ADVANCED MATERIALS, Vol: 24, Pages: 3205-3211, ISSN: 0935-9648

Journal article

Smith J, Zhang W, Sougrat R, Zhao K, Li R, Cha D, Amassian A, Heeney M, McCulloch I, Anthopoulos TDet al., 2012, Solution-Processed Small Molecule-Polymer Blend Organic Thin-Film Transistors with Hole Mobility Greater than 5 cm2/Vs, ADVANCED MATERIALS, Vol: 24, Pages: 2441-2446, ISSN: 0935-9648

Journal article

Kronemeijer AJ, Gili E, Shahid M, Rivnay J, Salleo A, Heeney M, Sirringhaus Het al., 2012, A Selenophene-Based Low-Bandgap Donor-Acceptor Polymer Leading to Fast Ambipolar Logic, ADVANCED MATERIALS, Vol: 24, Pages: 1558-1565, ISSN: 0935-9648

Journal article

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