Unusual Enhancement in Intrinsic Thermal Conductivity of Multilayer Graphene by Tensile Strains

Nano Letters

DOI: 10.1021/acs.nanolett.5b02403

Youdi Kuang, Lucas Lindsay and Baoling Huang
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Metal–Organic Frameworks Encapsulated in Photocleavable Capsules for UV-Light Triggered Catalysis

Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b01140

Willem P. R. Deleu, Guadalupe Rivero, Roberto F. A. Teixeira, Filip E. Du Prez and Dirk E. De Vos
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Blue-Green Color Tunable Solution Processable Organolead Chloride–Bromide Mixed Halide Perovskites for Optoelectronic Applications

Nano Letters

DOI: 10.1021/acs.nanolett.5b02369

Aditya Sadhanala, Shahab Ahmad, Baodan Zhao, Nadja Giesbrecht, Phoebe M. Pearce, Felix Deschler, Robert L. Z. Hoye, Karl C. Gödel, Thomas Bein, Pablo Docampo, Siân E. Dutton, Michael F. L. De Volder and Richard H. Friend
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Surface-Confined Amorphous Films from Metal-Coordinated Simple Phenolic Ligands

Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b02790

Md. Arifur Rahim, Kristian Kempe, Markus Müllner, Hirotaka Ejima, Yi Ju, Martin P. van Koeverden, Tomoya Suma, Julia A. Braunger, Michael G. Leeming, Brendan F. Abrahams and Frank Caruso
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Visualization of Lipid Membrane Reorganization Induced by a Pore-Forming Toxin Using High-Speed Atomic Force Microscopy

ACS Nano

DOI: 10.1021/acsnano.5b01041

Neval Yilmaz and Toshihide Kobayashi
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Influence of Interparticle Structure on the Steady-State and Transient Current within Arrays of Thiocyanate-Treated PbS Nanocubes

Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b01861

Martin R. McPhail and Emily A. Weiss
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Thin-Film Preparation and Characterization of Cs3Sb2I9: A Lead-Free Layered Perovskite Semiconductor

Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b01989

Bayrammurad Saparov, Feng Hong, Jon-Paul Sun, Hsin-Sheng Duan, Weiwei Meng, Samuel Cameron, Ian G. Hill, Yanfa Yan and David B. Mitzi
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Correlating Structure and Function in Organic Electronics: From Single Molecule Transport to Singlet Fission

Chemistry of Materials

DOI: 10.1021/cm502366x

Jonathan Z. Low, Samuel N. Sanders and Luis M. Campos
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Interfacial Mineral–Peptide Properties of a Mineral Binding Peptide from Osteonectin and Bone-like Apatite

Chemistry of Materials

DOI: 10.1021/acs.chemmater.5b01696

Irina Matlahov, Taly Iline-Vul, Meital Abayev, Elizabeth M. Y. Lee, Merav Nadav-Tsubery, Keren Keinan-Adamsky, Jeffrey J. Gray and Gil Goobes
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Rechargeable Lithium-Iodine Batteries with Iodine/Nanoporous Carbon Cathode

Nano Letters

DOI: 10.1021/acs.nanolett.5b02116

Qing Zhao, Yanying Lu, Zhiqiang Zhu, Zhanliang Tao and Jun Chen
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Two-Dimensional Topological Crystalline Insulator and Topological Phase Transition in TlSe and TlS Monolayers

Nano Letters

DOI: 10.1021/acs.nanolett.5b02299

Chengwang Niu, Patrick M. Buhl, Gustav Bihlmayer, Daniel Wortmann, Stefan Blügel and Yuriy Mokrousov
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Direct Plasmon-Driven Photoelectrocatalysis

Nano Letters

DOI: 10.1021/acs.nanolett.5b02453

Hossein Robatjazi, Shah Mohammad Bahauddin, Chloe Doiron and Isabell Thomann
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Separation of the piezotronic and piezoresistive effects in a zinc oxide nanowire

The strain-induced band structure change in a semiconductor can change its resistivity, known as the piezoresistive effect. If the semiconductor is also a piezoelectric material, strain-induced polarization charge can control the current transport at the metal-semiconductor contact, which is called a ‘piezotronic effect’. Piezotronic effect is intertwined with piezoresistive effect in the study of present piezotronic nanowire devices. Decoupling those effects will facilitate the fundamental study on the piezotronic devices and simplify the data analysis in real applications. Here, we report a general method to separate the piezotronic and piezoresistive effects in the same nanowire, based on modified four-point measurements. Current transport characteristics of each contact was extracted and showed different responses to the strain. The piezoresistive effect was measured in zinc oxide nanowires for the first time, and the result confirmed the dominant role of piezotronic effect i...

Ren Zhu and Rusen Yang

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Anti-TROP2 conjugated hollow gold nanospheres as a novel nanostructure for targeted photothermal destruction of cervical cancer cells

Photothermal ablation (PTA) is a promising avenue in the area of cancer therapeutics that destroys tumor cells through conversion of near-infrared (NIR) laser light to heat. Hollow gold nanospheres (HGNs) are one of the few materials that are capable of converting light to heat and have been previously used for photothermal ablation studies. Selective delivery of functional nanoparticles to the tumor site is considered as an effective therapeutic approach. In this paper, we demonstrated the anti-cancer potential of HGNs. HGNs were conjugated with monoclonal antibody (anti-TROP2) in order to target cervical cancer cells (HeLa) that contain abundant trophoblast cell surface antigen 2 (TROP2) on the cell surface. The efficient uptake and intracellular location of these functionalized HGNs were studied through application of inductively coupled plasma atomic emission spectroscopy (ICP-AES) and transmission electron microscopy (TEM). Cytotoxicity induced by PTA was measured using CCK-...



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Incorporation of carbon nanotubes in a hierarchical porous photoanode of tandem quantum dot sensitized solar cells

The incorporation of multi-walled carbon nanotubes (MWCNT) in quantum dot (QD) sensitized solar cells (QDSC) based on CdSe QDs and quantum rods (QRs) is investigated. The composite hierarchical porous photoanode of titania/CNT is synthesized by sol–gel induced phase separation and QDs/QRs are prepared by the modified solvothermal method. The QDs and QRs form a tandem structure on the hierarchical porous photoanode after deposition by the electrophoretic method. Incorporation of MWCNT in the QDSC photoanode in optimum content (0.32 wt%) causes appreciable enhancement in cells efficiency (about 41% increase). This improvement in efficiency mainly emerges from the beneficial role of MWCNTs in charge injection and collection. The MWCNTs result in longer electron lifetime and higher electron diffusion length, which is confirmed by electrochemical impedance spectroscopy.

Mohammad Reza Golobostanfard, Hossein Abdizadeh and Shamsoddin Mohajerzadeh

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Adhesion and friction characteristics of carbon nanotube arrays

There has been a great deal of interest in understanding, design and fabrication of bio-mimetic and bio-inspired adhesives in recent years. In this paper we present theoretical investigations on adhesion, friction behaviors and characteristics of fibrillar arrays composed of noninteracting carbon nanotubes for bio-inspired dry adhesives. Contact, compression, subsequent pulling off and dry sliding friction simulations were performed. It is demonstrated that there are two different adhesion forces during pull off. Static friction force values are in between 40 and 60 ##IMG## [http://ift.tt/1pZ7pt7] {${\rm N}\;{\rm c}{{{\rm m}}^{-2}}$} at different loads and they are significantly larger than the normal adhesion forces. Dynamic friction force and load are anisotropic and they depend on the direction of the motion. It is also found that friction force values and friction coefficients decrease although contact length...

A Buldum

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Hybridization effects on the out-of-plane electron tunneling properties of monolayers: is h-BN more conductive than graphene?

Electron transport properties through multilayers of hexagonal boron nitride (h-BN) sandwiched between gold electrodes is investigated by density functional theory together with the non-equilibrium Green’s function method. The calculated results find that despite graphene being a gapless semimetal and h-BN two-dimensional layer being an insulator, the transmission function perpendicular to the atomic layer plane in both systems is nearly identical. The out-of-plane tunnel current is found to be strongly dependent on the interaction at the interface of the device. As a consequence, single layer h-BN coupled with atomically flat weakly interacting metals such as gold may not work as a good dielectric material, but the absence of sharp resonances would probably lead to more stable out-of-plane electronic transport properties compared to graphene.

Xiaoliang Zhong, Rodrigo G Amorim, Alexandre R Rocha and Ravindra Pandey

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Role of Interchain Interaction in Determining the Band Gap of Trigonal Selenium: A Density Functional Theory Study with a Linear Combination of Bloch Orbitals

The Journal of Physical Chemistry C

DOI: 10.1021/jp5047084

Masafuyu Matsui

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Co–Co2C and Co–Co2C/AC Catalysts for Hydroformylation of 1-Hexene under Low Pressure: Experimental and Theoretical Studies

The Journal of Physical Chemistry C

DOI: 10.1021/jp504215y

Wenda Dong, Jinxun Liu, Hejun Zhu, Yunjie Ding, Yanpeng Pei, Jia Liu, Hong Du, Miao Jiang, Tao Liu, Haiyan Su and Weixue Li

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Remarkable Enhancement in Au Catalytic Utilization for Liquid Redox Reactions by Galvanic Deposition of Au on Cu Nanoparticles

The Journal of Physical Chemistry C

DOI: 10.1021/jp500908e

Dan Zhao, Xiang Xiong, Chang-Lin Qu and Ning Zhang

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