Advanced Materials

Cover image for Vol. 24 Issue 40

October 23, 2012

Volume 24, Issue 40

Pages 5401–5511

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Piezochromism: Unique Piezochromic Fluorescence Behavior of Dicyanodistyrylbenzene Based Donor–Acceptor–Donor Triad: Mechanically Controlled Photo-Induced Electron Transfer (eT) in Molecular Assemblies (Adv. Mater. 40/2012) (page 5401)

      Min Sang Kwon, Johannes Gierschner, Seong-Jun Yoon and Soo Young Park

      Version of Record online: 12 OCT 2012 | DOI: 10.1002/adma.201290246

      Thumbnail image of graphical abstract

      A donor–acceptor–donor triad, which exhibits fluorescence on-off switching with high contrast ratio (ca. 1000) in response to mechanical stimulus in the solid state, is reported by Soo Young Park and co-workers on page 5487. This system provides a very unique example of high contrast fluorescence switching that is driven by a mechanical force controlled photo-induced electron transfer (eT) in molecular assemblies.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Organic Complementary Circuits: Remarkable Enhancement of Hole Transport in Top-Gated N-Type Polymer Field-Effect Transistors by a High-k Dielectric for Ambipolar Electronic Circuits (Adv. Mater. 40/2012) (page 5402)

      Kang-Jun Baeg, Dongyoon Khim, Soon-Won Jung, Minji Kang, In-Kyu You, Dong-Yu Kim, Antonio Facchetti and Yong-Young Noh

      Version of Record online: 12 OCT 2012 | DOI: 10.1002/adma.201290247

      Thumbnail image of graphical abstract

      On page 5433, Yong-Young Noh, Antonio Facchetti, Kang-Jun Baeg, and co-workers report that high performance ambipolar complementary inverters and ring oscillators are provided by a remarkable enhancement of both hole injection and transport for n-channel dominant N2200 OFETs. The significant enhancement of hole mobility in N2200 OTFTs is attributed to the strong dipoles in fluorinated high-k gate dielectric blend of P(VDF-TrFE):PMMA.

  3. Back Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Nanosensors: Ordered Arrays of Raman Nanosensors for Ultrasensitive and Location Predictable Biochemical Detection (Adv. Mater. 40/2012) (page 5516)

      Xiaobin Xu, Kwanoh Kim, Huifeng Li and D.L. Fan

      Version of Record online: 12 OCT 2012 | DOI: 10.1002/adma.201290248

      Thumbnail image of graphical abstract

      Surface-enhanced raman scattering (SERS) effect is sensitive enough for single-molecule biochemical detection, but it is extremely difficult to obtain a large number of SERS hotspots for sensitive and reproducible detection. It is even more challenging to assemble the hot-spots at designated positions for location predictable sensing. On page 5457, D. L. Fan and co-workers report an original strategy for the synthesis, manipulation, and assembling of plasmonic nanocapsule SERS sensors for high-sensitivity biochemical detection at predictable locations.

  4. Masthead

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Masthead: (Adv. Mater. 40/2012)

      Version of Record online: 12 OCT 2012 | DOI: 10.1002/adma.201290249

  5. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
  6. Review

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Transition Metal Oxides for Organic Electronics: Energetics, Device Physics and Applications (pages 5408–5427)

      Jens Meyer, Sami Hamwi, Michael Kröger, Wolfgang Kowalsky, Thomas Riedl and Antoine Kahn

      Version of Record online: 1 AUG 2012 | DOI: 10.1002/adma.201201630

      Thumbnail image of graphical abstract

      Various transition metal oxides such as molybdenum oxide (MoO3), vanadium oxide (V2O5), and tungsten oxide (WO3) are reviewed; from fundamental analysis to advanced device applications for organic electronics.

  7. Communications

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. A Highly Emissive Conjugated Polyelectrolyte Vector for Gene Delivery and Transfection (pages 5428–5432)

      Xuli Feng, Fengting Lv, Libing Liu, Qiong Yang, Shu Wang and Guillermo C. Bazan

      Version of Record online: 7 AUG 2012 | DOI: 10.1002/adma.201202145

      Thumbnail image of graphical abstract

      An intrinsically fluorescent cationic polyfluorene (CCP) has been designed, synthesized, characterized, and examined as a plasmid DNA (pDNA) delivery vector. CCP can effectively protect pDNA against nuclease degradation. CCP can achieve highly efficient delivery and transfection of gene with 92% efficiency, which surpasses that of commercial transfection agents.

    2. Remarkable Enhancement of Hole Transport in Top-Gated N-Type Polymer Field-Effect Transistors by a High-k Dielectric for Ambipolar Electronic Circuits (pages 5433–5439)

      Kang-Jun Baeg, Dongyoon Khim, Soon-Won Jung, Minji Kang, In-Kyu You, Dong-Yu Kim, Antonio Facchetti and Yong-Young Noh

      Version of Record online: 9 JUL 2012 | DOI: 10.1002/adma.201201464

      Thumbnail image of graphical abstract

      A remarkable enhancement of p-channel properties is achieved in initially n-channel dominant ambipolar P(NDI2OD-T2) organic field-effect transistors (OFETs) by the use of the fluorinated high-k dielectric P(VDF-TrFE). An almost two orders of magnitude increase in hole mobility (∼0.11 cm2 V−1 s−1) originates from a strong interface modification at the semiconductor/dielectric interface, which provides high-performance complementary-like inverters and ring oscillator circuits.

  8. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Surface Micropatterning: Deterministic Order in Surface Micro-Topologies through Sequential Wrinkling (Adv. Mater. 40/2012) (page 5440)

      Jie Yin, Jose Luis Yagüe, Damien Eggenspieler, Karen K. Gleason and Mary C. Boyce

      Version of Record online: 12 OCT 2012 | DOI: 10.1002/adma.201290245

      Thumbnail image of graphical abstract

      On page 5441, Karen K. Gleason, Mary C. Boyce, and co-workers demonstrate a deterministic method to obtain orderly herringbone patterns through buckling of a stiff thin film deposited by chemical vapor deposition on a compliant substrate. Controlling the stretching and releasing of the sample enables tuning the features of the wrinkled surface, obtaining for the first time jog angles lower than 90°.

  9. Communications

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Back Cover
    5. Masthead
    6. Contents
    7. Review
    8. Communications
    9. Frontispiece
    10. Communications
    1. Deterministic Order in Surface Micro-Topologies through Sequential Wrinkling (pages 5441–5446)

      Jie Yin, Jose Luis Yagüe, Damien Eggenspieler, Karen K. Gleason and Mary C. Boyce

      Version of Record online: 23 AUG 2012 | DOI: 10.1002/adma.201201937

      Thumbnail image of graphical abstract

      Ordered herringbone patterns with deterministic long and short wavelengths are created using a sequential wrinkling strategy (SWS). Patterns with a prescribed zig-zag turning angle less than 90° are obtained upon sequential wrinkling of non-equi-biaxial prestrain for the first time. SWS provides a new method for measuring thin-film mechanical properties simply through the wrinkling metrology without measurement of film thickness.

    2. DNA Oligonucleotide Templated Nanohybrids Using Electronic Type Sorted Carbon Nanotubes for Light Harvesting (pages 5447–5451)

      Hanyu Zhang, Benjamin A. Baker, Tae-Gon Cha, M. Dane Sauffer, Yujun Wu, Nhigel Hinkson, Matthew A. Bork, Colleen M. McShane, Kyoung-Shin Choi, David R. McMillin and Jong Hyun Choi

      Version of Record online: 7 AUG 2012 | DOI: 10.1002/adma.201201628

      Thumbnail image of graphical abstract

      Light harvesting nanostructure hybrids have been designed and demonstrated using single-wall carbon nanotubes (SWCNTs) and porphyrin chromophores. DNA oligonucleotides are used to conjugate SWCNTs with light-absorbing chromophores for transparent films which generate photocurrents. High-purity semiconducting SWCNTs demonstrate significant enhancement in the photocurrent compared to metallic or unsorted tubes.

    3. Scalable Fabrication of Silicon Nanotubes and their Application to Energy Storage (pages 5452–5456)

      Jung-Keun Yoo, Jongsoon Kim, Yeon Sik Jung and Kisuk Kang

      Version of Record online: 31 JUL 2012 | DOI: 10.1002/adma.201201601

      Thumbnail image of graphical abstract

      The facile synthesis of silicon nanotubes using a surface sol–gel reaction on pyridine nanowire templates is reported and their performance for energy storage is investigated. Organic–inorganic hybrid pyridine/silica core-shell nanowires prepared using surface sol–gel reaction were converted to silica nanotubes by pyrolysis in air; this was followed by the reduction to silicon nanotubes via magnesiothermic reaction. The electrochemical activity of the obtained silicon nanotubes showed excellent cycle stability, suggesting that the hollow one-dimensional structure would be a good candidate for a high-capacity anode for a lithium ion battery.

    4. Ordered Arrays of Raman Nanosensors for Ultrasensitive and Location Predictable Biochemical Detection (pages 5457–5463)

      Xiaobin Xu, Kwanoh Kim, Huifeng Li and D.L. Fan

      Version of Record online: 9 AUG 2012 | DOI: 10.1002/adma.201201820

      Thumbnail image of graphical abstract

      Surface enhanced Raman scattering (SERS) is sensitive enough for single-molecule biochemical detection, but it is extremely difficult to obtain a large number of SERS hotspots for sensitive and reproducible detection. It is even more challenging to assemble the hotspots at designated positions for location predictable sensing. Here, we report an original strategy for the synthesis, manipulation, and assembling of plasmonic nanocapsule SERS sensors for high-sensitivity biochemical detection at predictable locations.

    5. Development of Phase-Separated Scintillators with Light-Guiding Properties (pages 5464–5469)

      Nobuhiro Yasui, Yoshihiro Ohashi, Tamaki Kobayashi and Tohru Den

      Version of Record online: 9 AUG 2012 | DOI: 10.1002/adma.201201962

      Thumbnail image of graphical abstract

      Alkali halide systems that function as phase-separated scintillators (PSSs) with light-guiding properties are sucessfully created. Furthermore, it is the matrix phases of the PSSs which display the light-guiding properties. CsI–NaCl:Tl is a practical material pair because of its high pixel light output and good spatial resolution.

    6. Piezo-Phototronic Effect of CdSe Nanowires (pages 5470–5475)

      Lin Dong, Simiao Niu, Caofeng Pan, Ruomeng Yu, Yan Zhang and Zhong Lin Wang

      Version of Record online: 13 AUG 2012 | DOI: 10.1002/adma.201201385

      Thumbnail image of graphical abstract

      The piezo-phototronic effect on transport properties of flexible CdSe NW devices is investigated. An optimum sensitivity of the flexible CdSe NW devices can be achieved by adjusting the applied strain and illumination intensity. The piezo-phototronic effect under compressive strain increases the internal electric field of the Schottky barrier, and assists the separation of the photo-excited electron-hole pairs, resulting in the increase of photocurrent. A trap-mediated mechanism is responsible for the decreased hole separation when the strain is larger than the critical strain.

    7. Surface Charge Switchable Nanoparticles Based on Zwitterionic Polymer for Enhanced Drug Delivery to Tumor (pages 5476–5480)

      You-Yong Yuan, Cheng-Qiong Mao, Xiao-Jiao Du, Jin-Zhi Du, Feng Wang and Jun Wang

      Version of Record online: 9 AUG 2012 | DOI: 10.1002/adma.201202296

      Thumbnail image of graphical abstract

      Two faced nanoparticles: A zwitterionic polymer-based nanoparticle with response to tumor acidity is developed for enhanced drug delivery to tumors. The nanoparticles are neutrally charged at physiological conditions and show prolonged circulation time; after leaking into tumor sites, in the acidic extracellular tumor environment (pHe), nanoparticles are activated and become positively charged and are therefore efficiently taken up by tumor cells, leading to enhanced therapeutic effects in cancer treatment.

    8. Highly Air-Stable Phosphorus-Doped n-Type Graphene Field-Effect Transistors (pages 5481–5486)

      Surajit Some, Jangah Kim, Keunsik Lee, Atul Kulkarni, Yeoheung Yoon, SaeMi Lee, Taesung Kim and Hyoyoung Lee

      Version of Record online: 7 AUG 2012 | DOI: 10.1002/adma.201202255

      Thumbnail image of graphical abstract

      Phosphorus-doped double-layered graphene field-effect transistors (PDGFETs) show much stronger air-stable n-type behavior than nitrogen-doped double-layered graphene FETs (NDGFETs), even under an oxygen atmosphere, due to strong nucleophilicity, which may lead to real applications for air-stable n-type graphene channels.

    9. Unique Piezochromic Fluorescence Behavior of Dicyanodistyrylbenzene Based Donor–Acceptor–Donor Triad: Mechanically Controlled Photo-Induced Electron Transfer (eT) in Molecular Assemblies (pages 5487–5492)

      Min Sang Kwon, Johannes Gierschner, Seong-Jun Yoon and Soo Young Park

      Version of Record online: 7 AUG 2012 | DOI: 10.1002/adma.201202409

      Thumbnail image of graphical abstract

      A novel donor–acceptor–donor triad that exhibits fluorescence on–off switching with high contrast ratio (ca. 103) in response to a mechanical stimulus in the solid state is reported. This system provides a very unique example of high-contrast fluorescence switching that is driven by a mechanical-force-controlled photo-induced electron transfer (eT) in molecular assemblies.

    10. Newly-Designed Complex Ternary Pt/PdCu Nanoboxes Anchored on Three-Dimensional Graphene Framework for Highly Efficient Ethanol Oxidation (pages 5493–5498)

      Chuangang Hu, Huhu Cheng, Yang Zhao, Yue Hu, Yong Liu, Liming Dai and Liangti Qu

      Version of Record online: 10 AUG 2012 | DOI: 10.1002/adma.201200498

      Thumbnail image of graphical abstract

      Newly-designed ternary Pt/PdCu nanoboxes on three-dimensional graphene framework (Pt/PdCu/3DGF) have been fabricated via a dual solvothermal strategy. This structurally well-defined Pt/PdCu/3DGF system possesses an approximately 4-fold improvement in catalytic activity for ethanol oxidation in alkaline media over the commercial 20% Pt/C catalyst as normalized by the total mass of active metals, showing the great potential for direct fuel cell applications.

    11. Silver Nanowire Composite Window Layers for Fully Solution-Deposited Thin-Film Photovoltaic Devices (pages 5499–5504)

      Choong-Heui Chung, Tze-Bin Song, Brion Bob, Rui Zhu, Hsin-Sheng Duan and Yang Yang

      Version of Record online: 7 AUG 2012 | DOI: 10.1002/adma.201201010

      Thumbnail image of graphical abstract

      A silver nanowire-indium tin oxide nanoparticle composite and its successful application to fully solution processed CuInSe2 solar cells as a window layer are demonstrated, effectively replacing the traditionally sputtered both intrinsic zinc oxide and indium tin oxide layers. The devices utilizing the nanocomposite window layer demonstrate photovoltaic parameters equal to or even beyond those with sputtered intrinsic zinc oxide and indium tin oxide contacts.

    12. High Density and Large Area Arrays of Silicon Oxide Pillars with Tunable Domain Size for Mask Etch Applications (pages 5505–5511)

      Xiaodan Gu, Paul Dorsey and Thomas P. Russell

      Version of Record online: 10 AUG 2012 | DOI: 10.1002/adma.201201278

      Thumbnail image of graphical abstract

      Silicon oxide pillars with tunable feature sizes and pitches are fabricated based on a block copolymer self-assembly template. By using reactive ion etching (RIE), the feature size of the silicon oxide pillars can be tuned without affecting the pitch. Using BCP with a different molecular weight can change the pitch size of the silicon oxide pillars. An area density of up to 2 teradots/inch2 is achieved.

SEARCH

SEARCH BY CITATION