Advanced Materials Interfaces

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  1. TopUp Plasmonic Arrays for Surface-Enhanced Raman Spectroscopy

    Sophie Patze, Uwe Huebner, Karina Weber, Dana Cialla-May and Juergen Popp

    Version of Record online: 24 AUG 2016 | DOI: 10.1002/admi.201600549

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    A new plasmonic active array, the so-called TopUp substrate, is introduced. It is prepared using a smart combination of a bottom-up process and a top-down prepared template structure. The desert-rose-like structures on gold templates are characterized and the application as a plasmonic substrate in analytical science is introduced, using the advantage of a strong field enhancement under surface-enhanced Raman spectroscopy conditions.

  2. Synthesis and Interfacial Properties of Optically-Active Photonic Nanocomposites with Single Nanoparticle Dispersion at High Solids Loading

    Xinyu Zhao, Yang Sun, Chaobin He and Mei Chee Tan

    Version of Record online: 24 AUG 2016 | DOI: 10.1002/admi.201600334

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    A successful method using partially hydrolyzed amphiphilic polyhedral oligomeric silsesquioxane-poly (methyl methacrylate) as a surfactant and matrix to obtain brightly emitting composites comprising of NaYF4:Yb,Er nanoparticles is demonstrated. The infrared (IR) emitting composite shows an improved thermal stability and mostly single particle dispersion for 10 vol% of solids which leads to lower scattering losses and brighter IR emissions.

  3. High Efficiency Epitaxial-Graphene/Silicon-Carbide Photocatalyst with Tunable Photocatalytic Activity and Bandgap Narrowing

    Aakash Mathur, Surjendu Bikash Dutta, Dipayan Pal, Jaya Singhal, Ajaib Singh and Sudeshna Chattopadhyay

    Version of Record online: 24 AUG 2016 | DOI: 10.1002/admi.201600413

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    A novel way of tuning photocatalytic activity and bandgap narrowing of epitaxial graphene/silicon carbide composite is investigated. Control of structural properties of graphene and interface heterojunction layers of EG/SiC is found to yield bandgap narrowing of less than 2 eV along with significant enhancement in photocatalytic efficiency indicating its potential use in high conversion efficiency solar water splitting.

  4. pH-Responsive Self-Organization of Metal-Binding Protein Motifs from Biomolecular Junctions in Mussel Byssus

    Antje Reinecke, Gerald Brezesinski and Matthew J. Harrington

    Version of Record online: 24 AUG 2016 | DOI: 10.1002/admi.201600416

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    Mussel byssal threads are self-healing proteinaceous fibers that serve as important archetypes for bio-inspired polymers; however, effective technology transfer requires better understanding of underlying structure-function relationships. Metal-binding histidine-rich domains in byssal thread proteins are shown to undergo pH and concentration dependent transitions in structure and metal binding, significant for thread self-assembly and mechanical function.

  5. Nano-Au and Ferroelectric Polarization Mediated Si/ITO/BiFeO3 Tandem Photocathode for Efficient H2 Production

    Xiaorong Cheng, Huanyu Shen, Wen Dong, Fengang Zheng, Liang Fang, Xiaodong Su and Mingrong Shen

    Version of Record online: 24 AUG 2016 | DOI: 10.1002/admi.201600485

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    An Si-pnn+/ITO/Au/BiFeO3 photocathode catalyzed by MoS2/Pt is constructed with an intension to fulfill the efficient transfer of photogenerated electrons from Si to electrode surface. Remarkably, the photocathode exhibits an onset potential of 1.3 V versus reversible hydrogen electrode (RHE), and the photocurrent at 0 V versus RHE can be up to –9.1 mA cm–2 under 100 mW cm–2 Xe-lamp illumination.

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