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

 

133ChemistrySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

274 results found

Charlton RJ, Fogarty RM, Bogatko S, Zuehlsdorff TJ, Hine NDM, Heeney M, Horsfield AP, Haynes PDet al., 2018, Implicit and explicit host effects on excitons in pentacene derivatives, JOURNAL OF CHEMICAL PHYSICS, Vol: 148, ISSN: 0021-9606

JOURNAL ARTICLE

Datko BD, Walwark DJ, Fei Z, Heeney MJ, Grey JKet al., 2018, Resolving Anomalous Heavy Atom Effects from Discrete Triplet Mediated Photochemistry Events on Single Conjugated Polymer Chains, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 122, Pages: 9718-9725, ISSN: 1932-7447

JOURNAL ARTICLE

Fei Z, Eisner FD, Jiao X, Azzouzi M, Rohr JA, Han Y, Shahid M, Chesman ASR, Easton CD, McNeill CR, Anthopoulos TD, Nelson J, Heeney Met al., 2018, An Alkylated Indacenodithieno[3,2-b]thiophene-Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses, ADVANCED MATERIALS, Vol: 30, ISSN: 0935-9648

JOURNAL ARTICLE

Fei Z, Eisner FD, Jiao X, Azzouzi M, Rohr JA, Han Y, Shahid M, Chesman ASR, Easton CD, McNeill CR, Anthopoulos TD, Nelson J, Heeney Met al., 2018, An Alkylated Indacenodithieno[3,2-b] thiophene-Based Nonfullerene Acceptor with High Crystallinity Exhibiting Single Junction Solar Cell Efficiencies Greater than 13% with Low Voltage Losses (vol 30, 2018), ADVANCED MATERIALS, Vol: 30, ISSN: 0935-9648

JOURNAL ARTICLE

Lu R, Han Y, Zhang W, Zhu X, Fei Z, Hodsden T, Anthopoulos TD, Heeney Met al., 2018, Alkylated indacenodithieno[3,2-b] thiophene-based all donor ladder-type conjugated polymers for organic thin film transistors, Journal of Materials Chemistry C, Vol: 6, Pages: 2004-2009, ISSN: 2050-7534

We report the synthesis of a series of indacenodithieno[3,2-b]thiophene (IDTT) based conjugated polymers by copolymerization with three different electron rich co-monomers [thiophene (T), thieno[3,2-b] thiophene (TT) and dithieno[3,2-b:2′,3′-d]thiophene (DTT)] under Stille coupling conditions. The resulting all-donor polymers show very good solubility in common solvents and exhibit similar optical, thermal and electronic properties. However, the performance of these semiconductors in thin film transistor devices varied and was highly dependent on the nature of the co-monomer. All polymers exhibited unipolar p-type charge transport behaviour, with the mobility values following the trend of IDTT-TT > IDTT-DTT > IDTT-T. The peak saturation mobility value of IDTT-TT was extracted to be 1.1 cm 2 V -1 s -1 , amongst the highest mobility for all-donor conjugated polymers reported to date.

JOURNAL ARTICLE

Marsh AV, Cheetham NJ, Little MS, Dyson M, White AJP, Beavis P, Warriner CN, Swain AC, Heeney MJ, Stavrinou PNet al., 2018, Carborane Induced Excimer Emission of Severely Twisted Bis-o-Carboranyl Chrysene., Angew Chem Int Ed Engl

We report the synthesis of a highly twisted chrysene derivative incorporating two electron deficient o-carboranyl groups. The molecule is found to exhibit a complex, excitation dependent photoluminescence, including aggregation-induced emission (AIE) with good quantum efficiency and an exceptionally long singlet excited state lifetime. Through a combination of detailed optical studies and theoretical calculations, the excited state species are identified, including an unusual excimer induced by the presence of o-carborane. This is the first time that o-carborane has been shown to induce excimer formation, as well as the first observation of excimer emission by a carborane-containing chrysene based small molecule in solution. Bis-o-carboranyl chrysene is thus an initial member of a new family of o-carboranyl phenacenes; exhibiting a novel architecture for highly-efficient multi-luminescent fluorophores.

JOURNAL ARTICLE

Panidi J, Paterson AF, Khim D, Fei Z, Han Y, Tsetseris L, Vourlias G, Patsalas PA, Heeney M, Anthopoulos TDet al., 2018, Remarkable Enhancement of the Hole Mobility in Several Organic Small-Molecules, Polymers, and Small-Molecule:Polymer Blend Transistors by Simple Admixing of the Lewis Acid p-Dopant B(C6F5)(3), ADVANCED SCIENCE, Vol: 5, ISSN: 2198-3844

JOURNAL ARTICLE

Squeo BM, Gregoriou VG, Han Y, Palma-Cando A, Allard S, Serpetzoglou E, Konidakis I, Stratakis E, Avgeropoulos A, Anthopoulos TD, Heeney M, Scherf U, Chochos CLet al., 2018, alpha,beta-Unsubstituted meso-positioning thienyl BODIPY: a promising electron deficient building block for the development of near infrared (NIR) p-type donor-acceptor (D-A) conjugated polymers, JOURNAL OF MATERIALS CHEMISTRY C, Vol: 6, Pages: 4030-4040, ISSN: 2050-7526

JOURNAL ARTICLE

Taroni PJ, Santagiuliana G, Wan K, Calado P, Qiu M, Zhang H, Pugno NM, Palma M, Stingelin-Stutzman N, Heeney M, Fenwick O, Baxendale M, Bilotti Eet al., 2018, Toward Stretchable Self-Powered Sensors Based on the Thermoelectric Response of PEDOT:PSS/Polyurethane Blends, ADVANCED FUNCTIONAL MATERIALS, Vol: 28, ISSN: 1616-301X

JOURNAL ARTICLE

Wijeyasinghe N, Tsetseris L, Regoutz A, Sit W-Y, Fei Z, Du T, Wang X, McLachlan MA, Vourlias G, Patsalas PA, Payne DJ, Heeney M, Anthopoulos TDet al., 2018, Copper (I) Selenocyanate (CuSeCN) as a Novel Hole-Transport Layer for Transistors, Organic Solar Cells, and Light-Emitting Diodes, ADVANCED FUNCTIONAL MATERIALS, Vol: 28, ISSN: 1616-301X

JOURNAL ARTICLE

Boufflet P, Bovo G, Occhi L, Yuan HK, Fei Z, Han Y, Anthopoulos TD, Stavrinou PN, Heeney Met al., 2017, The Influence of Backbone Fluorination on the Dielectric Constant of Conjugated Polythiophenes, Advanced Electronic Materials

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. The ability to modify or enhance the dielectric constant of semiconducting polymers can prove valuable for a range of optoelectronic and microelectronic applications. In the case of organic photovoltaics, increasing the dielectric constant of the active layer has often been suggested as a method to control charge generation, recombination dynamics, and ultimately, the power conversion efficiencies. In this contribution, the impact that the degree and pattern of fluorination has on the dielectric constant of poly(3-octylthiophene) (P3OT), a more soluble analogue of the widely studied conjugated material poly(3-hexylthiophene), is explored. P3OT and its backbone-fluorinated analogue, F-P3OT, are compared along with a block and alternating copolymer version of these materials. It is found that the dielectric constant of the polymer thin films increases as the degree of backbone fluorination increases, in a trend consistent with density functional theory calculations of the dipole moment.

JOURNAL ARTICLE

Boufflet P, Casey A, Xia Y, Stavrinou PN, Heeney Met al., 2017, Pentafluorobenzene end-group as a versatile handle for para fluoro "click" functionalization of polythiophenes, CHEMICAL SCIENCE, Vol: 8, Pages: 2215-2225, ISSN: 2041-6520

JOURNAL ARTICLE

Casey A, Green JP, Tuladhar PS, Kirkus M, Han Y, Anthopoulos TD, Heeney Met al., 2017, Cyano substituted benzotriazole based polymers for use in organic solar cells, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 5, Pages: 6465-6470, ISSN: 2050-7488

JOURNAL ARTICLE

Costa L, Al-Hashimi M, Heeney M, Terekhov A, Rajput D, Hofmeister W, Verma Aet al., 2017, Template-Synthesis of Conjugated Poly(3-Hexylselenophene) (P3HS) Nanofibers Using Femtosecond Laser Machined Fused Silica Templates, MRS ADVANCES, Vol: 2, Pages: 2957-2960, ISSN: 2059-8521

JOURNAL ARTICLE

Creamer A, Casey A, Marsh AV, Shahid M, Gao M, Heeney Met al., 2017, Systematic Tuning of 2,1,3-Benzothiadiazole Acceptor Strength by Monofunctionalization with Alkylamine, Thioalkyl, or Alkoxy Groups in Carbazole Donor-Acceptor Polymers, MACROMOLECULES, Vol: 50, Pages: 2736-2746, ISSN: 0024-9297

JOURNAL ARTICLE

Datko BD, Thomas AK, Fei Z, Heeney M, Grey JKet al., 2017, Effect of a heavy heteroatom on triplet formation and interactions in single conjugated polymer molecules and aggregates, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 19, Pages: 28239-28248, ISSN: 1463-9076

JOURNAL ARTICLE

Fei Z, Chen L, Han Y, Gann E, Chesman ASR, McNeill CR, Anthopoulos TD, Heeney M, Pietrangelo Aet al., 2017, Alternating 5,5-Dimethylcyclopentadiene and Diketopyrrolopyrrole Copolymer Prepared at Room Temperature for High Performance Organic Thin-Film Transistors, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 139, Pages: 8094-8097, ISSN: 0002-7863

JOURNAL ARTICLE

Fei Z, Han Y, Gann E, Hodsden T, Chesman ASR, McNeill CR, Anthopoulos TD, Heeney Met al., 2017, Alkylated Selenophene-Based Ladder-Type Monomers via a Facile Route for High-Performance Thin-Film Transistor Applications, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 139, Pages: 8552-8561, ISSN: 0002-7863

JOURNAL ARTICLE

Green JP, Cryer SJ, Marafie J, White AJP, Heeney Met al., 2017, Synthesis of a Luminescent Arsolo[2,3-d:5,4-d']bis(thiazole) Building Block and Comparison to Its Phosphole Analogue, ORGANOMETALLICS, Vol: 36, Pages: 2632-2636, ISSN: 0276-7333

JOURNAL ARTICLE

Hu Z, Haws RT, Fei Z, Boufflet P, Heeney M, Rossky PJ, Vanden Bout DAet al., 2017, Impact of backbone fluorination on nanoscale morphology and excitonic coupling in polythiophenes, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 114, Pages: 5113-5118, ISSN: 0027-8424

JOURNAL ARTICLE

Patra D, Lee J, Lee J, Sredojevic DN, White AJP, Bazzi HS, Brothers EN, Heeney M, Fang L, Yoon M-H, Al-Hashimi Met al., 2017, Synthesis of low band gap polymers based on pyrrolo[3,2-d:4,5-d ']bisthiazole (PBTz) and thienylenevinylene (TV) for organic thin-film transistors (OTFTs), JOURNAL OF MATERIALS CHEMISTRY C, Vol: 5, Pages: 2247-2258, ISSN: 2050-7526

JOURNAL ARTICLE

Rodriquez D, Kim J-H, Root SE, Fe Z, Boufflet P, Heeney M, Kim T-S, Lipomi DJet al., 2017, Comparison of Methods for Determining the Mechanical Properties of Semiconducting Polymer Films for Stretchable Electronics, ACS APPLIED MATERIALS & INTERFACES, Vol: 9, Pages: 8855-8862, ISSN: 1944-8244

JOURNAL ARTICLE

Wade J, Wood S, Collado-Fregoso E, Heeney M, Durrant J, Kim J-Set al., 2017, Impact of Fullerene Intercalation on Structural and Thermal Properties of Organic Photovoltaic Blends, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 121, Pages: 20976-20985, ISSN: 1932-7447

JOURNAL ARTICLE

Wijeyasinghe N, Regoutz A, Eisner F, Du T, Tsetseris L, Lin Y-H, Faber H, Pattanasattayavong P, Li J, Yan F, McLachlan MA, Payne DJ, Heeney M, Anthopoulos TDet al., 2017, Copper(I) Thiocyanate (CuSCN) Hole-Transport Layers Processed from Aqueous Precursor Solutions and Their Application in Thin-Film Transistors and Highly Efficient Organic and Organometal Halide Perovskite Solar Cells, ADVANCED FUNCTIONAL MATERIALS, Vol: 27, ISSN: 1616-301X

JOURNAL ARTICLE

Al-Hashimi M, Han Y, Smith J, Bazzi HS, Alqaradawi SYA, Watkins SE, Anthopoulos TD, Heeney Met al., 2016, Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers, CHEMICAL SCIENCE, Vol: 7, Pages: 1093-1099, ISSN: 2041-6520

JOURNAL ARTICLE

Bannock JE, Xu W, Baissas T, Heeney M, de Mello JCet al., 2016, Rapid flow-based synthesis of poly(3-hexylthiophene) using 2-methyltetrahydrofuran as a bio-derived reaction solvent, EUROPEAN POLYMER JOURNAL, Vol: 80, Pages: 240-246, ISSN: 0014-3057

JOURNAL ARTICLE

Bannock JH, Treat ND, Chabinyc M, Stingelin N, Heeney M, de Mello JCet al., 2016, The influence of polymer purification on the efficiency of poly(3-hexylthiophene):fullerene organic solar cells, SCIENTIFIC REPORTS, Vol: 6, ISSN: 2045-2322

JOURNAL ARTICLE

Boufflet P, Wood S, Wade J, Fei Z, Kim J-S, Heeney Met al., 2016, Comparing blends and blocks: Synthesis of partially fluorinated diblock polythiophene copolymers to investigate the thermal stability of optical and morphological properties, BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, Vol: 12, Pages: 2150-+, ISSN: 1860-5397

JOURNAL ARTICLE

Cachelin P, Green JP, Peijs T, Heeney M, Bastiaansen CWMet al., 2016, Optical Acetone Vapor Sensors Based on Chiral Nematic Liquid Crystals and Reactive Chiral Dopants, ADVANCED OPTICAL MATERIALS, Vol: 4, Pages: 592-596, ISSN: 2195-1071

JOURNAL ARTICLE

Casey A, Dimitrov SD, Shakya-Tuladhar P, Fei Z, Malgorzata N, Han Y, Anthopoulos TD, Durrant JR, Heeney Met al., 2016, Effect of Systematically Tuning Conjugated Donor Polymer Lowest Unoccupied Molecular Orbital Levels via Cyano Substitution on Organic Photovoltaic Device Performance, CHEMISTRY OF MATERIALS, Vol: 28, Pages: 5110-5120, ISSN: 0897-4756

JOURNAL ARTICLE

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