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

264 results found

Crouch DJ, Sparrowe D, Heeney M, McCulloch I, Skabara PJet al., 2010, Polyterthiophenes Incorporating 3,4-Difluorothiophene Units: Application in Organic Field-Effect Transistors, MACROMOLECULAR CHEMISTRY AND PHYSICS, Vol: 211, Pages: 2642-2648, ISSN: 1022-1352

JOURNAL ARTICLE

O'Connor B, Chan EP, Chan C, Conrad BR, Richter LJ, Kline RJ, Heeney M, McCulloch I, Soles CL, DeLongchamp DMet al., 2010, Correlations between Mechanical and Electrical Properties of Polythiophenes, ACS NANO, Vol: 4, Pages: 7538-7544, ISSN: 1936-0851

JOURNAL ARTICLE

Savenije TJ, Grzegorczyk WJ, Heeney M, Tierney S, McCulloch I, Siebbeles LDAet al., 2010, Photoinduced Charge Carrier Generation in Blends of Poly(Thienothiophene) Derivatives and [6,6]-Phenyl-C61-butyric Acid Methyl Ester: Phase Segregation versus Intercalation, JOURNAL OF PHYSICAL CHEMISTRY C, Vol: 114, Pages: 15116-15120, ISSN: 1932-7447

JOURNAL ARTICLE

Shoaee S, Clarke TM, Huang C, Barlow S, Marder SR, Heeney M, McCulloch I, Durrant JRet al., 2010, Acceptor Energy Level Control of Charge Photogeneration in Organic Donor/Acceptor Blends, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 132, Pages: 12919-12926, ISSN: 0002-7863

JOURNAL ARTICLE

Smith J, Bashir A, Adamopoulos G, Anthony JE, Bradley DDC, Hamilton R, Heeney M, McCulloch I, Anthopoulos TDet al., 2010, Air-Stable Solution-Processed Hybrid Transistors with Hole and Electron Mobilities Exceeding 2 cm(2) V-1 s(-1), ADVANCED MATERIALS, Vol: 22, Pages: 3598-+, ISSN: 0935-9648

JOURNAL ARTICLE

Smith J, Hamilton R, McCulloch I, Stingelin-Stutzmann N, Heeney M, Bradley DDC, Anthopoulos TDet al., 2010, Solution-processed organic transistors based on semiconducting blends, JOURNAL OF MATERIALS CHEMISTRY, Vol: 20, Pages: 2562-2574, ISSN: 0959-9428

JOURNAL ARTICLE

Smith J, Hamilton R, Qi Y, Kahn A, Bradley DDC, Heeney M, McCulloch I, Anthopoulos TDet al., 2010, The Influence of Film Morphology in High-Mobility Small-Molecule:Polymer Blend Organic Transistors, ADVANCED FUNCTIONAL MATERIALS, Vol: 20, Pages: 2330-2337, ISSN: 1616-301X

JOURNAL ARTICLE

Wang C, Jimison LH, Goris L, McCulloch I, Heeney M, Ziegler A, Salleo Aet al., 2010, Microstructural Origin of High Mobility in High-Performance Poly(thieno-thiophene) Thin-Film Transistors, ADVANCED MATERIALS, Vol: 22, Pages: 697-+, ISSN: 0935-9648

JOURNAL ARTICLE

Zhang W, Smith J, Watkins SE, Gysel R, McGehee M, Salleo A, Kirkpatrick J, Ashraf S, Anthopoulos T, Heeney M, McCulloch Iet al., 2010, Indacenodithiophene Semiconducting Polymers for High-Performance, Air-Stable Transistors, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 132, Pages: 11437-11439, ISSN: 0002-7863

JOURNAL ARTICLE

Zhang X, Hudson SD, DeLongchamp DM, Gundlach DJ, Heeney M, McCulloch Iet al., 2010, In-Plane Liquid Crystalline Texture of High-Performance Thienothiophene Copolymer Thin Films, ADVANCED FUNCTIONAL MATERIALS, Vol: 20, Pages: 4098-4106, ISSN: 1616-301X

JOURNAL ARTICLE

Ball JM, Woebkenberg PH, Colleaux F, Heeney M, Anthony JE, McCulloch I, Bradley DDC, Anthopoulos TDet al., 2009, Solution processed low-voltage organic transistors and complementary inverters, APPLIED PHYSICS LETTERS, Vol: 95, ISSN: 0003-6951

JOURNAL ARTICLE

Barard S, Heeney M, Chen L, Colle M, Shkunov M, McCulloch I, Stingelin N, Philips M, Kreouzis Tet al., 2009, Separate charge transport pathways determined by the time of flight method in bimodal polytriarylamine, JOURNAL OF APPLIED PHYSICS, Vol: 105, ISSN: 0021-8979

JOURNAL ARTICLE

Bjorklund N, Lill J-O, Rajander J, Osterbacka R, Tierney S, Heeney M, McCulloch I, Coelle Met al., 2009, The effects of metal impurities in poly[(2,5-bis(3-decylthiophen-2-yl)thieno[2,3-b]thiophene] on field-effect transistor properties, ORGANIC ELECTRONICS, Vol: 10, Pages: 215-221, ISSN: 1566-1199

JOURNAL ARTICLE

Brocorens P, Van Vooren A, Chabinyc ML, Toney MF, Shkunov M, Heeney M, McCulloch I, Cornil J, Lazzoroni Ret al., 2009, Solid-State Supramolecular Organization of Polythiophene Chains Containing Thienothiophene Units, ADVANCED MATERIALS, Vol: 21, Pages: 1193-1198, ISSN: 0935-9648

JOURNAL ARTICLE

Cates NC, Gysel R, Beiley Z, Miller CE, Toney MF, Heeney M, McCulloch I, McGehee MDet al., 2009, Tuning the Properties of Polymer Bulk Heterojunction Solar Cells by Adjusting Fullerene Size to Control Intercalation, NANO LETTERS, Vol: 9, Pages: 4153-4157, ISSN: 1530-6984

JOURNAL ARTICLE

DeLongchamp DM, Kline RJ, Jung Y, Germack DS, Lin EK, Moad AJ, Richter LJ, Toney MF, Heeney M, McCulloch Iet al., 2009, Controlling the Orientation of Terraced Nanoscale "Ribbons" of a Poly(thiophene) Semiconductor, ACS NANO, Vol: 3, Pages: 780-787, ISSN: 1936-0851

JOURNAL ARTICLE

Hallam T, Lee M, Zhao N, Nandhakumar I, Kemerink M, Heeney M, McCulloch I, Sirringhaus Het al., 2009, Local Charge Trapping in Conjugated Polymers Resolved by Scanning Kelvin Probe Microscopy, PHYSICAL REVIEW LETTERS, Vol: 103, ISSN: 0031-9007

JOURNAL ARTICLE

Hamilton R, Smith J, Ogier S, Heeney M, Anthony JE, McCulloch I, Veres J, Bradley DDC, Anthopoulos TDet al., 2009, High-Performance Polymer-Small Molecule Blend Organic Transistors, ADVANCED MATERIALS, Vol: 21, Pages: 1166-1171, ISSN: 0935-9648

JOURNAL ARTICLE

Heeney M, Al-Hashimi M, McCulloch I, Zhang W, Hamilton Ret al., 2009, Structural and optoelectronic effects of chalcogen atom manipulation on low bandgap polymers, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol: 238, ISSN: 0065-7727

JOURNAL ARTICLE

Heeney M, McCulloch I, 2009, Handbook of Thiophene-Based Materials: Applications in Organic Electronics and Photonics. Chapter 17 Thienothiophene-containing polymers for field effect transistor applications, Publisher: Wiley, ISBN: 978-0-470-05732-2

BOOK

Jimison LH, Toney MF, McCulloch I, Heeney M, Salleo Aet al., 2009, Charge-Transport Anisotropy Due to Grain Boundaries in Directionally Crystallized Thin Films of Regioregular Poly(3-hexylthiophene), ADVANCED MATERIALS, Vol: 21, Pages: 1568-+, ISSN: 0935-9648

JOURNAL ARTICLE

Kao CY, Lee B, Wielunski LS, Heeney M, McCulloch I, Garfunkel E, Feldman LC, Podzorov Vet al., 2009, Doping of Conjugated Polythiophenes with Alky Silanes, ADVANCED FUNCTIONAL MATERIALS, Vol: 19, Pages: 1906-1911, ISSN: 1616-301X

JOURNAL ARTICLE

Kim Y, Nelson J, Zhang T, Cook S, Durrant JR, Kim H, Park J, Shin M, Nam S, Heeney M, McCulloch I, Ha C-S, Bradley DDCet al., 2009, Distorted Asymmetric Cubic Nanostructure of Soluble Fullerene Crystals in Efficient Polymer:Fullerene Solar Cells, ACS NANO, Vol: 3, Pages: 2557-2562, ISSN: 1936-0851

JOURNAL ARTICLE

Koppe M, Brabec CJ, Heiml S, Schausberger A, Duffy W, Heeney M, McCulloch Iet al., 2009, Influence of Molecular Weight Distribution on the Gelation of P3HT and Its Impact on the Photovoltaic Performance, MACROMOLECULES, Vol: 42, Pages: 4661-4666, ISSN: 0024-9297

JOURNAL ARTICLE

Mayer AC, Toney MF, Scully SR, Rivnay J, Brabec CJ, Scharber M, Koppe M, Heeney M, McCulloch I, McGehee MDet al., 2009, Bimolecular Crystals of Fullerenes in Conjugated Polymers and the Implications of Molecular Mixing for Solar Cells, ADVANCED FUNCTIONAL MATERIALS, Vol: 19, Pages: 1173-1179, ISSN: 1616-301X

JOURNAL ARTICLE

McCulloch I, Heeney M, 2009, Flexible Electronics Materials and Applications, Publisher: Springer, ISBN: 978-0-387-74362-2

BOOK

McCulloch I, Heeney M, 2009, Thienothiophene Copolymers in Field Effect Transistors, Pages: 647-672

JOURNAL ARTICLE

McCulloch I, Heeney M, Chabinyc ML, DeLongchamp D, Kline RJ, Coelle M, Duffy W, Fischer D, Gundlach D, Hamadani B, Hamilton R, Richter L, Salleo A, Shkunov M, Sporrowe D, Tierney S, Zhong Wet al., 2009, Semiconducting Thienothiophene Copolymers: Design, Synthesis, Morphology, and Performance in Thin-Film Organic Transistors, ADVANCED MATERIALS, Vol: 21, Pages: 1091-1109, ISSN: 0935-9648

JOURNAL ARTICLE

McGehee MD, Mayer AC, Toney MF, Scully SR, Rivnay J, Cates NC, Gysel R, Heeney M, McCulloch Iet al., 2009, Bimolecular crystals and intercalated molecular structures of polymer/fullerene in bulk heterojunction solar cells, ACS National Meeting Book of Abstracts, ISSN: 0065-7727

The performance of polymer:fullerene solar cells is heavily influenced by the packing and ordering at the molecular level in the blends as the local packing determines the stability, carrier recombination dynamics, and charge transport properties of these blends. We use x-ray diffraction, ambipolar charge transport measurements, and optical microscopy to demonstrate the formation of stable well-ordered bimolecular crystals of fullerene intercalated between the side-chains of the semiconducting polymer poly(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene (pBTTT). We show that fullerene intercalation is general and is likely to occur in blends with both amorphous and semicrystalline polymers when there is enough free volume between the side-chains to accommodate the fullerene molecule. These findings offer explanations for why luminescence is completely quenched in crystals much larger than exciton diffusion lengths, how the hole mobility of poly(2-methoxy-5-(3′,7′-dimethyloxy)-p-phylene vinylene) (MDMO-PPV) increases by over 2 orders of magnitude when blended with fullerene derivatives, and why large-scale phase separation occurs in some polymer:fullerene blend ratios while thermodynamically stable mixing on the molecular scale occurs for others, and finally what determines the optimum polymer:fullerene blending ratios.

JOURNAL ARTICLE

Rolfe NJ, Heeney M, Wyatt PB, Drew AJ, Kreouzis T, Gillin WPet al., 2009, Elucidating the role of hyperfine interactions on organic magnetoresistance using deuterated aluminium tris(8-hydroxyquinoline), PHYSICAL REVIEW B, Vol: 80, ISSN: 1098-0121

JOURNAL ARTICLE

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