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You searched for: Journal ACS Applied Materials & Interfaces Remove constraint Journal: ACS Applied Materials & Interfaces Publication Year 2015 Remove constraint Publication Year: 2015 Source 2015 v.7 no.40 Remove constraint Source: 2015 v.7 no.40
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1. All-Solid-State High-Energy Asymmetric Supercapacitors Enabled by Three-Dimensional Mixed-Valent MnOx Nanospike and Graphene Electrodes

Author:
Yang, Jie; Li, Guizhu; Pan, Zhenghui; Liu, Meinan; Hou, Yuan; Xu, Yijun; Deng, Hong; Sheng, Leimei; Zhao, Xinluo; Qiu, Yongcai; Zhang, Yuegang
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22172-22180
ISSN:
1944-8252
Subject:
alcohols; capacitance; electrodes; electrolytes; energy density; gels; graphene; manganese oxides; nanomaterials; polymers; surface area
Abstract:
... Three-dimensional (3D) nanostructures enable high-energy storage devices. Here we report a 3D manganese oxide nanospike (NSP) array electrode fabricated by anodization and subsequent electrodeposition. All-solid-state asymmetric supercapacitors were assembled with the 3D Al@Ni@MnOₓ NSP as the positive electrode, chemically converted graphene (CCG) as the negative electrode, and Na₂SO₄/poly(vinyl a ...
DOI:
10.1021/acsami.5b07849

2. Breakdown and Protection of ALD Moisture Barrier Thin Films

Author:
Nehm, Frederik; Klumbies, Hannes; Richter, Claudia; Singh, Aarti; Schroeder, Uwe; Mikolajick, Thomas; Mönch, Tobias; Hoßbach, Christoph; Albert, Matthias; Bartha, Johann W.; Leo, Karl; Müller-Meskamp, Lars
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22121-22127
ISSN:
1944-8252
Subject:
Gibbs free energy; X-radiation; atomic force microscopy; calcium; climate; direct contact; electronics; encapsulation; foil; polymers; relative humidity; water vapor
Abstract:
... The water vapor barrier properties of low-temperature atomic layer deposited (ALD) AlOₓ thin-films are observed to be unstable if exposed directly to high or even ambient relative humidities. Upon exposure to humid atmospheres, their apparent barrier breaks down and their water vapor transmission rates (WVTR), measured by electrical calcium tests, deteriorate by several orders of magnitude. These ...
DOI:
10.1021/acsami.5b06891

3. Carrier Transport at Metal/Amorphous Hafnium–Indium–Zinc Oxide Interfaces

Author:
Kim, Seoungjun; Gil, Youngun; Choi, Youngran; Kim, Kyoung-Kook; Yun, Hyung Joong; Son, Byoungchul; Choi, Chel-Jong; Kim, Hyunsoo
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22385-22393
ISSN:
1944-8252
Subject:
electronic equipment; metals; models; oxygen; spectroscopy; statistical analysis
Abstract:
... In this paper, the carrier transport mechanism at the metal/amorphous hafnium–indium–zinc oxide (a-HIZO) interface was investigated. The contact properties were found to be predominantly affected by the degree of interfacial reaction between the metals and a-HIZO; that is, a higher tendency to form metal oxide phases leads to excellent Ohmic contact via tunneling, which is associated with the gene ...
DOI:
10.1021/acsami.5b06223

4. Controllable Fabrication of Noniridescent Microshaped Photonic Crystal Assemblies by Dynamic Three-Phase Contact Line Behaviors on Superhydrophobic Substrates

Author:
Zhou, Jinming; Yang, Jing; Gu, Zhandong; Zhang, Guofu; Wei, Yu; Yao, Xi; Song, Yanlin; Jiang, Lei
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22644-22651
ISSN:
1944-8252
Subject:
catalytic activity; colloids; color; doughnuts; droplets; energy efficiency; evaporation; hydrophobicity; iron oxides; microbeads; nanoparticles; photons; pigments
Abstract:
... Enormous research efforts have been made to self-assemble monodisperse colloidal spheres into special microscopic shapes (e.g., superbeads, superballs, or doughnuts), due to their widespread applications in sensors, displays, separation processes, catalysis, etc. But realization of photonic crystal (PC) assemblies with both facile microshape control and a noniridescent property is still a tough ta ...
DOI:
10.1021/acsami.5b07443

5. Copper Complex in Poly(vinyl chloride) as a Nitric Oxide-Generating Catalyst for the Control of Nitrifying Bacterial Biofilms

Author:
Wonoputri, Vita; Gunawan, Cindy; Liu, Sanly; Barraud, Nicolas; Yee, Lachlan H.; Lim, May; Amal, Rose
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22148-22156
ISSN:
1944-8252
Subject:
acid treatment; adenosine triphosphate; ascorbic acid; biochemical pathways; biofilm; catalysts; confocal laser scanning microscopy; copper; nitric oxide; nitrifying bacteria; nitrites; plankton; poly(vinyl chloride); reducing agents; staining; viability; vinyl chloride
Abstract:
... In this study, catalytic generation of nitric oxide by a copper(II) complex embedded within a poly(vinyl chloride) matrix in the presence of nitrite (source of nitric oxide) and ascorbic acid (reducing agent) was shown to effectively control the formation and dispersion of nitrifying bacteria biofilms. Amperometric measurements indicated increased and prolonged generation of nitric oxide with the ...
DOI:
10.1021/acsami.5b07971

6. Crumpled Nitrogen-Doped Graphene for Supercapacitors with High Gravimetric and Volumetric Performances

Author:
Wang, Jie; Ding, Bing; Xu, Yunling; Shen, Laifa; Dou, Hui; Zhang, Xiaogang
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22284-22291
ISSN:
1944-8252
Subject:
electrical conductivity; electrical equipment; electrochemistry; electrodes; energy density; graphene; ionic liquids; nanosheets; nitrogen; surface area
Abstract:
... Graphene is considered a promising electrochemical capacitors electrode material due to its high surface area and high electrical conductivity. However, restacking interactions between graphene nanosheets significantly decrease the ion-accessible surface area and impede electronic and ionic transfer. This would, in turn, severely hinder the realization of high energy density. Herein, we report a s ...
DOI:
10.1021/acsami.5b05428

7. Ecofriendly and Nonvacuum Electrostatic Spray-Assisted Vapor Deposition of Cu(In,Ga)(S,Se)2 Thin Film Solar Cells

Author:
Hossain, Md. Anower; Wang, Mingqing; Choy, Kwang-Leong
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22497-22503
ISSN:
1944-8252
Subject:
aerosols; cadmium; copper; cost effectiveness; glass; molybdenum; photovoltaic cells; sulfides; vapors
Abstract:
... Chalcopyrite Cu(In,Ga)(S,Se)₂ (CIGSSe) thin films have been deposited by a novel, nonvacuum, and cost-effective electrostatic spray-assisted vapor deposition (ESAVD) method. The generation of a fine aerosol of precursor solution, and their controlled deposition onto a molybdenum substrate, results in adherent, dense, and uniform Cu(In,Ga)S₂ (CIGS) films. This is an essential tool to keep the inter ...
DOI:
10.1021/acsami.5b06666

8. Fabrication of a Self-Cleaning Surface via the Thermosensitive Copolymer Brush of P(NIPAAm-PEGMA)

Author:
Ye, Yuansong; Huang, Jian; Wang, Xiaolin
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22128-22136
ISSN:
1944-8252
Subject:
cleaning; composite polymers; contact angle; desorption; ethylene glycol; hydrophilicity; oils; polyethylene glycol; polypropylenes; temperature; washing
Abstract:
... Surface hydrophilicity and the inherent washing force are two crucial factors for constructing an underwater self-cleaning surface. Following this self-cleaning mechanism, we fabricated thermosensitive copolymer brushes of N-isopropylacrylamide (NIPAAm) and poly(ethylene glycol) methacrylate (PEGMA) on the polypropylene (PP) surface. Benefiting from the hydrophilic poly(ethylene glycol) (PEG) side ...
DOI:
10.1021/acsami.5b07336

9. FAS Grafted Electrospun Poly(vinyl alcohol) Nanofiber Membranes with Robust Superhydrophobicity for Membrane Distillation

Author:
Dong, Zhe-Qin; Wang, Bao-Juan; Ma, Xiao-hua; Wei, Yong-Ming; Xu, Zhen-Liang
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22652-22659
ISSN:
1944-8252
Subject:
alcohols; crosslinking; desalination; distillation; energy; glutaraldehyde; hydrophobicity; leaves; microstructure; nanofibers; permeability; polyvinyl alcohol; sodium chloride; temperature; ultrasonic treatment
Abstract:
... This study develops a novel type of electrospun nanofiber membranes (ENMs) with high permeability and robust superhydrophobicity for membrane distillation (MD) process by mimicking the unique unitary microstructures of ramee leaves. The superhydrophobic ENMs were fabricated by the eletrospinning of poly(vinyl alcohol) (PVA), followed by chemical cross-linking with glutaraldehyde and surface modifi ...
DOI:
10.1021/acsami.5b07454

10. Fine Tuning of Nanocrystal and Pore Sizes of TiO2 Submicrospheres toward High Performance Dye-Sensitized Solar Cells

Author:
Li, Zhao-Qian; Ding, Yong; Mo, Li-E; Hu, Lin-Hua; Wu, Ji-Huai; Dai, Song-Yuan
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22277-22283
ISSN:
1944-8252
Subject:
ammonium hydroxide; crystal structure; hydrolysis; light scattering; nanocrystals; photovoltaic cells; porosity; porous media; surface area; titanium dioxide
Abstract:
... In general, the properties and performance of mesoporous TiO₂ are greatly dependent on its crystal size, crystallinity, porosity, surface area, and morphology; in this regard, design and fine-tuning the crystal and pore sizes of the TiO₂ submicrospheres and investigating the effect of these factors on the properties and photoelectric performance of dye-sensitized solar cells (DSSCs) is essential. ...
DOI:
10.1021/acsami.5b06556

11. Flexible Hybrid Membranes with Ni(OH)2 Nanoplatelets Vertically Grown on Electrospun Carbon Nanofibers for High-Performance Supercapacitors

Author:
Zhang, Longsheng; Ding, Qianwei; Huang, Yunpeng; Gu, Huahao; Miao, Yue-E; Liu, Tianxi
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22669-22677
ISSN:
1944-8252
Subject:
capacitance; carbon nanofibers; electrical conductivity; electrochemistry; electrodes; electrolytes; electrons; hydroxides; nickel; oxides; porous media; redox reactions
Abstract:
... The practical applications of transition metal oxides and hydroxides for supercapacitors are restricted by their intrinsic poor conductivity, large volumetric expansion, and rapid capacitance fading upon cycling, which can be solved by optimizing these materials to nanostructures and confining them within conductive carbonaceous frameworks. In this work, flexible hybrid membranes with ultrathin Ni ...
DOI:
10.1021/acsami.5b07528

12. Functionally Graded Interfaces: Role and Origin of Internal Electric Field and Modulated Electrical Response

Author:
Maurya, Deepam; Zhou, Yuan; Chen, Bo; Kang, Min-Gyu; Nguyen, Peter; Hudait, Mantu K.; Priya, Shashank
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22458-22468
ISSN:
1944-8252
Subject:
axes; electric field; hysteresis; silicon; statistical analysis
Abstract:
... We report the tunable electrical response in functionally graded interfaces in lead-free ferroelectric thin films. Multilayer thin film graded heterostructures were synthesized on platinized silicon substrate with oxide layers of varying thickness. Interestingly, the graded heterostructure thin films exhibited shift of the hysteresis loops on electric field and polarization axes depending upon the ...
DOI:
10.1021/acsami.5b06544

13. Gd3+-1,4,7,10-Tetraazacyclododecane-1,4,7-triacetic-2-hydroxypropyl-β-cyclodextrin/Pluronic Polyrotaxane as a Long Circulating High Relaxivity MRI Contrast Agent

Author:
Zhou, Zhuxian; Mondjinou, Yawo; Hyun, Seok-Hee; Kulkarni, Aditya; Lu, Zheng-Rong; Thompson, David H.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22272-22276
ISSN:
1944-8252
Subject:
acute toxicity; blood; blood circulation; kidneys; magnetic resonance imaging; pharmacology
Abstract:
... A multivalent magnetic resonance imaging agent based on a 2-hydroxypropyl-β-cyclodextrin (HPCD):Pluronic F127 polyrotaxane carrier has been synthesized, and its blood pool contrast properties have been characterized. This Gd³⁺-DO3A-HPCD/Pluronic polyrotaxane construct is shown to circulate for more than 30 min and provide >100-fold vascular enhancement relative to the monomeric Gd³⁺-DO3A-HPCD cont ...
DOI:
10.1021/acsami.5b05393

14. Genetically Programmed Clusters of Gold Nanoparticles for Cancer Cell-Targeted Photothermal Therapy

Author:
Oh, Mi Hwa; Yu, Jeong Heon; Kim, Insu; Nam, Yoon Sung
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22578-22586
ISSN:
1944-8252
Subject:
bacteriophages; blood serum; cell death; chemistry; coat proteins; genetic engineering; heat; irradiation; nanocarriers; nanogold; nanoparticles; neoplasm cells; prostatic neoplasms
Abstract:
... Interpretations of the interactions of nanocarriers with biological cells are often complicated by complex synthesis of materials, broad size distribution, and heterogeneous surface chemistry. Herein, the major capsid proteins of an icosahedral T7 phage (55 nm in diameter) are genetically engineered to display a gold-binding peptide and a prostate cancer cell-binding peptide in a tandem sequence. ...
DOI:
10.1021/acsami.5b07029

15. Grain Size and Interface Dependence of Bias Stress Stability of n-Type Organic Field Effect Transistors

Author:
Ahmed, Rizwan; Simbrunner, Clemens; Baig, M. A.; Sitter, H.
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22380-22384
ISSN:
1944-8252
Subject:
electricity; electronic equipment; free radicals; organic compounds
Abstract:
... The effect of grain size and interface dependence of bias stress stability of C₆₀-based n-type organic field effect transistors (OFETs) has been studied. It has been realized that, with increasing grain size of C₆₀, the bias stress induced threshold voltage shift can be controlled and this effect is mainly attributed to the mechanism of charge trapping at grain boundaries. It is further studied th ...
DOI:
10.1021/acsami.5b06210

16. Heterojunction of Zinc Blende/Wurtzite in Zn1–xCdxS Solid Solution for Efficient Solar Hydrogen Generation: X-ray Absorption/Diffraction Approaches

Author:
Hsu, Ying-Ya; Suen, Nian-Tzu; Chang, Chung-Chieh; Hung, Sung-Fu; Chen, Chi-Liang; Chan, Ting-Shan; Dong, Chung-Li; Chan, Chih-Chieh; Chen, San-Yuan; Chen, Hao Ming
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22558-22569
ISSN:
1944-8252
Subject:
X-radiation; X-ray absorption spectroscopy; X-ray diffraction; absorption; cadmium; catalysts; crystal structure; fuels; hydrogen production; photocatalysis; semiconductors; solar radiation; zinc
Abstract:
... In the past decade, inorganic semiconductors have been successfully demonstrated as light absorbers in efficient solar water splitting to generate chemical fuels. Pseudobinary semiconductors Zn₁–ₓCdₓS (0 ≤ x ≤ 1) have exhibited a superior photocatalytic reactivity of H₂ production from splitting of water by artificial solar irradiation without any metal catalysts. However, most studies had reveale ...
DOI:
10.1021/acsami.5b06872

17. Hierarchical Graphene-Encapsulated Hollow SnO2@SnS2 Nanostructures with Enhanced Lithium Storage Capability

Author:
Xu, Wangwang; Xie, Zhiqiang; Cui, Xiaodan; Zhao, Kangning; Zhang, Lei; Dietrich, Grant; Dooley, Kerry M.; Wang, Ying
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22533-22541
ISSN:
1944-8252
Subject:
anodes; electrochemistry; lithium; lithium batteries; nanocomposites; nanosheets; tin dioxide
Abstract:
... Complex hierarchical structures have received tremendous attention due to their superior properties over their constitute components. In this study, hierarchical graphene-encapsulated hollow SnO₂@SnS₂ nanostructures are successfully prepared by in situ sulfuration on the backbones of hollow SnO₂ spheres via a simple hydrothermal method followed by a solvothermal surface modification. The as-prepar ...
DOI:
10.1021/acsami.5b06765

18. Hierarchical Structure and Mechanical Improvement of an n-HA/GCO–PU Composite Scaffold for Bone Regeneration

Author:
Li, Limei; Zuo, Yi; Zou, Qin; Yang, Boyuan; Lin, Lili; Li, Jidong; Li, Yubao
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22618-22629
ISSN:
1944-8252
Subject:
bioactive properties; bones; castor oil; cell growth; compression strength; hydroxyapatite; mechanical properties; modulus of elasticity; orthopedics; polymerization; polyurethanes; surgery; tissue repair
Abstract:
... To improve the mechanical properties of bone tissue and achieve the desired bone tissue regeneration for orthopedic surgery, newly designed hydroxyapatite/polyurethane (HA/PU) porous scaffolds were developed via in situ polymerization. The results showed that the molecular modification of PU soft segments by glyceride of castor oil (GCO) can increase the scaffold compressive strength by 48% and th ...
DOI:
10.1021/acsami.5b07327

19. High Cycling Stability and Extreme Rate Performance in Nanoscaled LiMn2O4 Thin Films

Author:
Put, Brecht; Vereecken, Philippe M.; Labyedh, Nouha; Sepulveda, Alfonso; Huyghebaert, Cedric; Radu, Iuliana P.; Stesmans, Andre
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22413-22420
ISSN:
1944-8252
Subject:
electrodes; manganese; phase transition; radio waves
Abstract:
... Ultrathin LiMn₂O₄ electrode layers with average crystal size of ∼15 nm were fabricated by means of radio frequency sputtering. Cycling behavior and rate performance was evaluated by galvanostatic charge and discharge measurements. The thinnest films show the highest volumetric capacity and best cycling stability, retaining the initial capacity over 70 (dis)charging cycles when manganese dissolutio ...
DOI:
10.1021/acsami.5b06386

20. Influence of the Terminal Electron Donor in D–D−π–A Organic Dye-Sensitized Solar Cells: Dithieno[3,2-b:2′,3′-d]pyrrole versus Bis(amine)

Author:
Dai, Panpan; Yang, Lin; Liang, Mao; Dong, Huanhuan; Wang, Peng; Zhang, Chunyao; Sun, Zhe; Xue, Song
Source:
ACS Applied Materials & Interfaces 2015 v.7 no.40 pp. 22436-22447
ISSN:
1944-8252
Subject:
absorption; cobalt; dyes; electrolytes; energy conversion; lighting; photovoltaic cells; reports; volatile organic compounds
Abstract:
... With respect to the electron-withdrawing acceptors of D–A−π–A organic dyes, reports on the second electron-donating donors for D–D−π–A organic dyes are very limited. Both of the dyes have attracted significant attention in the field of dye-sensitized solar cells (DSCs). In this work, four new D–D−π–A organic dyes with dithieno[3,2-b:2′,3′-d]pyrrole (DTP) or bis(amine) donor have been designed and ...
DOI:
10.1021/acsami.5b06481