Advanced Materials

Cover image for Vol. 26 Issue 36

Editor-in-Chief: Peter Gregory, Deputy Editors: Martin Ottmar, Carolina Novo da Silva, Lorna Stimson

Online ISSN: 1521-4095

Associated Title(s): Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials Interfaces, Advanced Optical Materials, Particle & Particle Systems Characterization, Small

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Recently Published Articles

  1. A–D–A-type S,N-Heteropentacenes: Next-Generation Molecular Donor Materials for Efficient Vacuum-Processed Organic Solar Cells

    Amaresh Mishra, Dusko Popovic, Astrid Vogt, Hannelore Kast, Tanja Leitner, Karsten Walzer, Martin Pfeiffer, Elena Mena-Osteritz and Peter Bäuerle

    Article first published online: 22 SEP 2014 | DOI: 10.1002/adma.201402448

    Thumbnail image of graphical abstract

    A new class of acceptor-substituted S,N-heteropentacenes is developed for vacuum-processed organic solar cells, providing encouraging power conversion efficiencies of up to 6.5%. Atomic force microscopy (AFM) investigations give a direct correlation between the blend film morphology and the photovoltaic parameters, such as short-circuit current density (JSC) and fill factor (FF).

  2. Biodegradable Materials for Multilayer Transient Printed Circuit Boards

    Xian Huang, Yuhao Liu, Suk-Won Hwang, Seung-Kyun Kang, Dwipayan Patnaik, Jonathan Fajardo Cortes and John A. Rogers

    Article first published online: 22 SEP 2014 | DOI: 10.1002/adma.201403164

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    Biodegradable printed circuit boards based on water-soluble materials are demonstrated. These systems can dissolve in water within 10 mins to yield end-products that are environmentally safe. These and related approaches have the potential to reduce hazardous waste streams associated with electronics disposal.

  3. Doping Graphene with an Atomically Thin Two Dimensional Molecular Layer

    Haena Kim, Hyun Ho Kim, Jeong In Jang, Seong Kyu Lee, Geon-Woong Lee, Joong Tark Han and Kilwon Cho

    Article first published online: 22 SEP 2014 | DOI: 10.1002/adma.201403196

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    Atomically thin and chemically versatile GO sheets are used as p-type dopants of CVD-graphene. This method enables the strong, stable, large-scale, low-temperature, and controllable p-doping of graphene with preserved charge mobility, intrinsic roughness, and transmittance.

  4. Oligonucleotide Flexibility Dictates Crystal Quality in DNA-Programmable Nanoparticle Superlattices

    Andrew J. Senesi, Daniel J. Eichelsdoerfer, Keith A. Brown, Byeongdu Lee, Evelyn Auyeung, Chung Hang J. Choi, Robert J. Macfarlane, Kaylie L. Young and Chad A. Mirkin

    Article first published online: 22 SEP 2014 | DOI: 10.1002/adma.201402548

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    The evolution of crystallite size and microstrain in DNA-mediated nanoparticle superlattices is dictated by annealing temperature and the flexibility of interparticle bonds. This work addresses a major challenge in synthesizing optical metamaterials based upon noble metal nanoparticles by enabling the crystallization of large nanoparticles (100 nm diameter) at high volume fractions (34% metal).

  5. Interplay of Solvent Additive Concentration and Active Layer Thickness on the Performance of Small Molecule Solar Cells

    John A. Love, Samuel D. Collins, Ikuhiro Nagao, Subhrangsu Mukherjee, Harald Ade, Guillermo C. Bazan and Thuc-Quyen Nguyen

    Article first published online: 22 SEP 2014 | DOI: 10.1002/adma.201402403

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    A relationship between solvent additive concentration and active layer thickness in small molecule solar cells is investigated. Specifically, the additive concentration must scale with the amount of semiconductor material and not as absolute concentration in solution. Devices with a wide range of active layers of up to 200 nm thickness can readily achieve efficiencies close to 6% when the right concentration of additive is used.