Advanced Functional Materials

Cover image for Vol. 24 Issue 8

February 26, 2014

Volume 24, Issue 8

Pages 1029–1181

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Polyelectrolytes: Multi-Charged Conjugated Polyelectrolytes as a Versatile Work Function Modifier for Organic Electronic Devices (Adv. Funct. Mater. 8/2014) (page 1029)

      Byoung Hoon Lee, In Hwan Jung, Han Young Woo, Hong-Ku Shim, Geunjin Kim and Kwanghee Lee

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470046

      Thumbnail image of graphical abstract

      H. Y. Woo and co-workers describe an energy level tuning mechanism at the interface between a metal electrode and a conjugated polyelectrolyte. On page 1100, by introducing a series of cationic conjugated polyelectrolytes, the effect of ion density on the energy level tuning process at such an interface in the organic electronic devices is investigated. These series materials indicate that two different electron injection mechanisms must be invoked according to the film thickness of the interfacial layer.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Antibacterials: Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires (Adv. Funct. Mater. 8/2014) (page 1030)

      Zahra Mohammad Davoudi, Ahmad Esmaielzadeh Kandjani, Anand I. Bhatt, Ilias L. Kyratzis, Anthony P. O'Mullane and Vipul Bansal

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470047

      Thumbnail image of graphical abstract

      A new application of metal-tetracyanoquinodimethane charge-transfer complexes for efficient antimicrobial performance is discovered by V. Bansal and co-workers. On page 1047, long AgTCNQ nanowires of >4000 aspect ratio are grown onto a fabric surface. The high surface area of the 3D interwoven network of AgTCNQ nanowires and the low aqueous solubility of this material allow the AgTCNQ fabric unprecedented antibacterial performance over pristine Ag fabric due to slow Ag+ ion release characteristics.

  3. Back Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Reversible Polymers: Tetrakis-(4-thiyphenyl)methane: Origin of a Reversible 3D-Homopolymer (Adv. Funct. Mater. 8/2014) (page 1184)

      Laure Monnereau, Martin Nieger, Thierry Muller and Stefan Bräse

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470052

      Thumbnail image of graphical abstract

      A hypercrosslinked polymer of tetrakis-(4-thiyphenyl)methane held together by disulfide bonds is shown by T. Muller, S. Bräse, and co-workers. The powder is made up of condensed spherical particles, with a non-uniform size distribution and diameters ranging from 0.5 to 1.7 μm. On page 1054, the surface can be post-functionalized with maleimides. When this material is depolymerized under controlled mild conditions, only monomer and monofunctionalized mono mer in a ratio of 3:1 are obtained.

  4. Masthead

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Masthead: (Adv. Funct. Mater. 8/2014)

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470051

  5. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Contents: (Adv. Funct. Mater. 8/2014) (pages 1031–1036)

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470048

  6. Correction

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      High-Performance Dopamine Sensors Based on Whole-Graphene Solution-Gated Transistors (page 1036)

      Meng Zhang, Caizhi Liao, Yanli Yao, Zhike Liu, Fengfei Gong and Feng Yan

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201400059

      This article corrects:

      High-Performance Dopamine Sensors Based on Whole-Graphene Solution-Gated Transistors

      Vol. 24, Issue 7, 978–985, Article first published online: 18 NOV 2013

    2. You have free access to this content
      Fast, Air-Stable Infrared Photodetectors based on Spray-Deposited Aqueous HgTe Quantum Dots (page 1037)

      Mengyu Chen, Hui Yu, Stephen V. Kershaw, Haihua Xu, Shuchi Gupta, Frederik Hetsch, Andrey L. Rogach and Ni Zhao

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201400075

      This article corrects:

      Fast, Air-Stable Infrared Photodetectors based on Spray-Deposited Aqueous HgTe Quantum Dots

      Vol. 24, Issue 1, 53–59, Article first published online: 20 JUN 2013

  7. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Rubrene: Photovoltaic Effect at the Schottky Interface with Organic Single Crystal Rubrene (Adv. Funct. Mater. 8/2014) (page 1038)

      Supravat Karak, Jung Ah Lim, Sunzida Ferdous, Volodimyr V. Duzhko and Alejandro L. Briseno

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470049

      Thumbnail image of graphical abstract

      Due to exceptional structural order and satisfactory material purity, organic single crystals in various heterostructures can serve as model systems for studying the fundamental photophysical processes that constitute organic photovoltaic device operation. On page 1039, V. V. Duzhko, A. L. Briseno, and co-workers introduce a photovoltaic device architecture based on the Schottky heterojunction of rubrene single crystals with metal electrodes and provide a comprehensive description of the mechanism of photovoltaic effect formation.

  8. Full Papers

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. Photovoltaic Effect at the Schottky Interface with Organic Single Crystal Rubrene (pages 1039–1046)

      Supravat Karak, Jung Ah Lim, Sunzida Ferdous, Volodimyr V. Duzhko and Alejandro L. Briseno

      Article first published online: 16 SEP 2013 | DOI: 10.1002/adfm.201301891

      Thumbnail image of graphical abstract

      The photovoltaic effect at the Schottky interface of a rubrene single crystal and Al or LiF/Al electrodes in lateral ITO–rubrene–Al and ITO–rubrene–LiF/Al device configurations is demonstrated and explained based on constructed energy band diagrams of the heterostructures.

    2. Hybrid Antibacterial Fabrics with Extremely High Aspect Ratio Ag/AgTCNQ Nanowires (pages 1047–1053)

      Zahra Mohammad Davoudi, Ahmad Esmaielzadeh Kandjani, Anand I. Bhatt, Ilias L. Kyratzis, Anthony P. O'Mullane and Vipul Bansal

      Article first published online: 1 OCT 2013 | DOI: 10.1002/adfm.201302368

      Thumbnail image of graphical abstract

      The synthesis of Ag–tetracyanoquinodimethane (TCNQ) nanowires of extremely high aspect ratios (>3000) supported on a metallic silver fabric is reported. These Ag/AgTCNQ fabrics show higher antimicrobial performance against both Gram negative and Gram positive bacteria than pristine Ag fabrics. This study extends the applicability of metal–TCNQ charge transfer complexes beyond electronics applications and opens up new avenues towards flexible electronics.

    3. Tetrakis-(4-thiyphenyl)methane: Origin of a Reversible 3D-Homopolymer (pages 1054–1058)

      Laure Monnereau, Martin Nieger, Thierry Muller and Stefan Bräse

      Article first published online: 17 SEP 2013 | DOI: 10.1002/adfm.201302483

      Thumbnail image of graphical abstract

      The efficient generation of a hyper-crosslinked poly(disulfide) is described. After high yielding synthesis of the monomer tetrakis-(4-thiylphenyl)methane, the polymeric material is obtained in excellent yield under mild reaction conditions. Combination of controlled de-polymerization under bio-compatible conditions and postfunctionalization gives access to the number of free termini at the surface.

    4. GeOx/Reduced Graphene Oxide Composite as an Anode for Li-Ion Batteries: Enhanced Capacity via Reversible Utilization of Li2O along with Improved Rate Performance (pages 1059–1066)

      Dongping Lv, Mikhail L. Gordin, Ran Yi, Terrence Xu, Jiangxuan Song, Ying-Bing Jiang, Daiwon Choi and Donghai Wang

      Article first published online: 19 SEP 2013 | DOI: 10.1002/adfm.201301882

      Thumbnail image of graphical abstract

      A GeOx/reduced graphene oxide (RGO) composite, where amorphous GeOx (1.01 < x < 1.07) nanoparticles are in intimate contact with well-dispersed RGO sheets, is successfully synthesized via a facile one-step reduction approach. The introduction of conductive RGO sheets into germanium oxide is a simple but effective strategy for enhancing the reversible utilization of Li2O and improving rate capability for Li+ storage in germanium oxides.

    5. Multiferroic Polymer Laminate Composites Exhibiting High Magnetoelectric Response Induced by Hydrogen-Bonding Interactions (pages 1067–1073)

      Jiezhu Jin, Fang Zhao, Kuo Han, M. A. Haque, Lijie Dong and Qing Wang

      Article first published online: 20 SEP 2013 | DOI: 10.1002/adfm.201301675

      Thumbnail image of graphical abstract

      Multferroic composites based on the hydrate salt doped ferroelectric polymers exhibit state-of-the-art magnetoelectric voltage coefficients under remarkably low magnetic bias fields. The effect of hydrogen bonds on the polarization ordering, coupled with the enhancement of the evolution of the polar phase, of the ferroelectric polymers is investigated, entailing marked improvement in piezoelectricity and magnetoelectric coupling relative to the analogous composites.

    6. Nepenthes Pitcher Inspired Anti-Wetting Silicone Nanofilaments Coatings: Preparation, Unique Anti-Wetting and Self-Cleaning Behaviors (pages 1074–1080)

      Junping Zhang, Aiqin Wang and Stefan Seeger

      Article first published online: 2 OCT 2013 | DOI: 10.1002/adfm.201301481

      Thumbnail image of graphical abstract

      Nepenthes pitcher inspired anti-wetting coatings are fabricated by the combination of fluoro-silicone nanofilaments and a perfluoropolyether liquid. The sliding speed of liquid drop and the self-cleaning property can be controlled by composition of the coating, properties of liquid drop, and dirt.

    7. Virtually Bare Nanocrystal Surfaces: Significantly Enhanced Electrical Transport in CuInSe2 and CuIn1−xGaxSe2 Thin Films upon Ligand Exchange with Thermally Degradable 1-Ethyl-5-Thiotetrazole (pages 1081–1088)

      Jannika Lauth, Jakob Marbach, Andreas Meyer, Sedat Dogan, Christian Klinke, Andreas Kornowski and Horst Weller

      Article first published online: 23 SEP 2013 | DOI: 10.1002/adfm.201301957

      Thumbnail image of graphical abstract

      A ligand exchange method for CI(G)S nanocrystals (NCs) with 1-ethyl-5-thiotetrazole (ETT) that preserves colloidal stability of the structures is presented. NCs yield ordered films which are heated to 260 °C to completely remove ETT resulting in closely assembled individual NCs with virtually bare surfaces. NC solids show up to four orders of magnitude increased conductivity in ligand-free films compared to ligand-covered ones.

  9. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. You have free access to this content
      Apatites: Crystal Size, Morphology, and Growth Mechanism in Bio-Inspired Apatite Nanocrystals (Adv. Funct. Mater. 8/2014) (page 1089)

      José Manuel Delgado-López, Ruggero Frison, Antonio Cervellino, Jaime Gómez-Morales, Antonietta Guagliardi and Norberto Masciocchi

      Article first published online: 20 FEB 2014 | DOI: 10.1002/adfm.201470050

      Thumbnail image of graphical abstract

      Nanocrystalline apatite platelets, the mineral component of bone, form from an amorphous precursor through a complex biomineralization process. Here, A. Guagliardi and co-workers use citrate-bio-inspired apatites as a system model and, by cross-coupling the results on crystal domains provided by X-ray total scattering modeling with atomic force microscopy observations, they reconstruct the amorphousto-crystal transformation mechanism and clarify the origin of the platy morphology breaking the hexagonal crystal symmetry.

  10. Full Papers

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Correction
    8. Frontispiece
    9. Full Papers
    10. Frontispiece
    11. Full Papers
    1. Crystal Size, Morphology, and Growth Mechanism in Bio-Inspired Apatite Nanocrystals (pages 1090–1099)

      José Manuel Delgado-López, Ruggero Frison, Antonio Cervellino, Jaime Gómez-Morales, Antonietta Guagliardi and Norberto Masciocchi

      Article first published online: 18 SEP 2013 | DOI: 10.1002/adfm.201302075

      Thumbnail image of graphical abstract

      Citrate bio-inspired apatite nanoparticles are characterized in terms of structure, size, morphology, and composition through advanced X-ray total scattering techniques. By cross-coupling size and shape information of crystal domains with atomic force microscopy data for multidomain nanoparticles, a plausible mechanism underlying the amorphous-to-crystal transformation is reconstructed and the origin of platy crystal morphology, breaking the hexagonal symmetry, explained.

    2. Multi-Charged Conjugated Polyelectrolytes as a Versatile Work Function Modifier for Organic Electronic Devices (pages 1100–1108)

      Byoung Hoon Lee, In Hwan Jung, Han Young Woo, Hong-Ku Shim, Geunjin Kim and Kwanghee Lee

      Article first published online: 23 SEP 2013 | DOI: 10.1002/adfm.201301810

      Thumbnail image of graphical abstract

      An electron injection mechanism for conjugated polyelectrolyte (CPE) electron transport layers in organic electronic devices is demonstrated by introducing a new series of CPEs with various numbers of ionic functionalities. Energy level tuning at the CPE/metal interface can be determined directly by adjusting ion density in the CPEs. Thickness-dependent electron injection characteristics indicate that two different mechanisms must be invoked according to the CPE thickness.

    3. Photo-Stable Organic Thin-Film Transistor Utilizing a New Indolocarbazole Derivative for Image Pixel and Logic Applications (pages 1109–1116)

      Ji Hoon Park, Hee Sung Lee, Soohyung Park, Sung-Wook Min, Yeonjin Yi, Cheon-Gyu Cho, Jiwon Han, Tae Woong Kim and Seongil Im

      Article first published online: 23 SEP 2013 | DOI: 10.1002/adfm.201301783

      Thumbnail image of graphical abstract

      A new indolocabazole derivative (heptazole) possessing a HOMO-LUMO gap of ≈2.95 eV is synthesized and shows good photo-stability unlike old pentacene. An image pixel driving our photostable heptazole OTFT connected to a pentacene/Al Schottky photodiode is demonstrated. The heptazole OTFT also conveniently forms a logic inverter coupled with a pentacene OTFT, sharing Au for source/drain.

    4. Influence of Cavity Thickness and Emitter Orientation on the Efficiency Roll-Off of Phosphorescent Organic Light-Emitting Diodes (pages 1117–1124)

      Caroline Murawski, Philipp Liehm, Karl Leo and Malte C. Gather

      Article first published online: 9 OCT 2013 | DOI: 10.1002/adfm.201302173

      Thumbnail image of graphical abstract

      The efficiency roll-off of organic light-emitting diodes is studied by varying the distance between emitter and metal cathode. Roll-off is found to depend on the orientation of the emitter molecules, which can be explained by measurements and modeling of the triplet decay rate. Simulations of the roll-off behavior give further insight into the principles of efficient stack design.

    5. Extrusion of YAG Tubes Shows that Bottom-up Processing is Not Always Optimal (pages 1125–1132)

      Nathan J. Taylor and Richard M. Laine

      Article first published online: 8 OCT 2013 | DOI: 10.1002/adfm.201301290

      Thumbnail image of graphical abstract

      Thermoplastic extrusion of 3:5 Y2O3-Al2O3 nanopowder mixtures creates YAG tubes that sinter to 95+% of their theoretical density at 1500 °C with fine grain sizes. Extrusion of highly atomically mixed Y3Al5O12 nanopowders creates tubes which only sinter at higher temperatures to larger grain sizes, illustrating a situation in which nanoscale bottom-up synthesis is not advantageous.

    6. Polymer–Aptamer Hybrid Emulsion Templating Yields Bioresponsive Nanocapsules (pages 1133–1139)

      Dawid Kedracki, Plinio Maroni, Helmut Schlaad and Corinne Vebert-Nardin

      Article first published online: 4 NOV 2013 | DOI: 10.1002/adfm.201302475

      Thumbnail image of graphical abstract

      An IgE-aptamer polymer hybrid efficiently stabilizes an emulsion. Since they specifically recognize immunoglobulin E, the resulting nanocapsules are biological-stimulus responsive.

    7. Aerosol-Synthesis of Mesoporous Organosilica Nanoparticles with Highly Reactive, Superacidic Surfaces Comprising Sulfonic Acid Entities (pages 1140–1150)

      Julia Gehring, David Schleheck, Martin Luka and Sebastian Polarz

      Article first published online: 24 OCT 2013 | DOI: 10.1002/adfm.201302330

      Thumbnail image of graphical abstract

      High surface area organosilica colloids with superacid properties are prepared from a novel sulfonic acid sol–gel precursor. An aerosol assisted method affords spherical mesoporous particles, which exhibit a high density of surface acid groups. Furthermore, initial antifouling studies are conducted.

    8. Synthesis, Electronic Structure, and Charge Transport Characteristics of Naphthalenediimide-Based Co-Polymers with Different Oligothiophene Donor Units (pages 1151–1162)

      Alessandro Luzio, Daniele Fazzi, Dario Natali, Ester Giussani, Kang-Jun Baeg, Zhihua Chen, Yong-Young Noh, Antonio Facchetti and Mario Caironi

      Article first published online: 29 OCT 2013 | DOI: 10.1002/adfm.201302297

      Thumbnail image of graphical abstract

      A series of newly synthesized naphthalenediimide-based co-polymers are investigated in order to unveil the effect of the donor π-conjugation length and the heteroatomic fusion of the thiophene rings on charge transport properties. Physical-chemical and variable temperature electrical properties are complemented with density functional theory calculations to assess the most critical factors determining efficient charge transport in field-effect devices.

    9. Ultrathin Nanogenerators as Self-Powered/Active Skin Sensors for Tracking Eye Ball Motion (pages 1163–1168)

      Sangmin Lee, Ronan Hinchet, Yean Lee, Ya Yang, Zong-Hong Lin, Gustavo Ardila, Laurent Montès, Mireille Mouis and Zhong Lin Wang

      Article first published online: 14 OCT 2013 | DOI: 10.1002/adfm.201301971

      Thumbnail image of graphical abstract

      Ultrathin piezoelectric nanogenerator is developed as active or self-powered sensor for monitoring local deformation on a human skin. The nanogenerator which detects the motion of the eye ball underneath can be effective in monitoring sleep pattern, tiredness, brain activity, and spirit status of a person, as well as any biological associated skin deformation.

    10. Mechanical Properties of Conjugated Polymers and Polymer-Fullerene Composites as a Function of Molecular Structure (pages 1169–1181)

      Suchol Savagatrup, Aditya S. Makaram, Daniel J. Burke and Darren J. Lipomi

      Article first published online: 14 OCT 2013 | DOI: 10.1002/adfm.201302646

      Thumbnail image of graphical abstract

      This paper describes the large effect of small changes in a structural characteristic—the length of the alkyl side chain—on the elasticity and ductility of conjugated polymers. Measurements of tensile modulus are complemented with measurements of ductility. These experiments could influence the selection and design of new organic semiconductors in flexible and stretchable applications.

      Corrected by:

      Correction: Mechanical Properties of Conjugated Polymers and Polymer-Fullerene Composites as a Function of Molecular Structure

      Vol. 24, Issue 16, 2264, Article first published online: 16 APR 2014

SEARCH

SEARCH BY CITATION