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https://www.readbyqxmd.com/read/29775282/confined-liquid-phase-growth-of-crystalline-compound-semiconductors-on-any-substrate
#1
Debarghya Sarkar, Wei Wang, Matthew Mecklenburg, Andrew J Clough, Matthew Yeung, Chenhao Ren, Qingfeng Lin, Louis Blankemeier, Shanyuan Niu, Huan Zhao, Haotian Shi, Han Wang, Stephen B Cronin, Jayakanth Ravichandran, Mitul Luhar, Rehan Kapadia
The growth of crystalline compound semiconductors on amorphous and non-epitaxial substrates is a fundamental challenge for state-of-the-art thin-film epitaxial growth techniques. Direct growth of materials on technologically relevant amorphous surfaces, such as nitrides or oxides results in nanocrystalline thin-films, or nanowire type structures, preventing growth and integration of high-performance devices and circuits on these surfaces. Here we show crystalline compound semiconductors grown directly on technologically relevant amorphous and non-epitaxial substrates in geometries compatible with standard microfabrication technology...
May 18, 2018: ACS Nano
https://www.readbyqxmd.com/read/29772988/combined-labeled-leukocyte-and-technicium-99-sulfur-colloid-bone-marrow-imaging-differentiating-primary-pyomyositis-pseudotumor-from-osteomyelitis-and-multiple-bone-infarcts
#2
Paul W Perdue, Allison B Spitzer, Dipal Chatterjee, Srinivas Kolla, Aditya V Maheshwari
A 53 year old-female patient with lupus had undergone a cephalo-medullary nailing for a femur shaft fracture 30 years ago. This was complicated by osteomyelitis, requiring multiple debridement procedures and hardware removal. Recently, she developed a painful soft tissue mass in the same region, which was ultimately diagnosed as pyomyositis. Because of chronic bone changes due to her past history, traditional imaging could not differentiate between osteomyelitis infarction and pseudotumor. A combined indium-labeled leukocyte scan with a technetium-99 sulfur colloid marrow scan ruled out osteomyelitis and guided proper treatment without osseous debridement and thus prevented unnecessary cross-contamination of the bone...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772767/electrical-performance-and-reliability-improvement-of-amorphous-indium-gallium-zinc-oxide-thin-film-transistors-with-hfo%C3%A2-gate-dielectrics-by-cf%C3%A2-plasma-treatment
#3
Ching-Lin Fan, Fan-Ping Tseng, Chiao-Yuan Tseng
In this work, amorphous indium-gallium-zinc oxide thin-film transistors (a-IGZO TFTs) with a HfO₂ gate insulator and CF₄ plasma treatment was demonstrated for the first time. Through the plasma treatment, both the electrical performance and reliability of the a-IGZO TFT with HfO₂ gate dielectric were improved. The carrier mobility significantly increased by 80.8%, from 30.2 cm²/V∙s (without treatment) to 54.6 cm²/V∙s (with CF₄ plasma treatment), which is due to the incorporated fluorine not only providing an extra electron to the IGZO, but also passivating the interface trap density...
May 17, 2018: Materials
https://www.readbyqxmd.com/read/29772267/reactive-oxygen-species-independent-genotoxicity-of-indium-tin-oxide-nanoparticles-triggered-by-intracellular-degradation
#4
Yosuke Tabei, Sakiko Sugino, Yoshihiro Nakajima, Masanori Horie
No abstract text is available yet for this article.
May 14, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29771118/escherichia-coli-fiber-sensors-using-concentrated-dielectrophoretic-force-with-optical-defocusing-method
#5
Yi-Hsin Tai, Chia-Wei Lee, Dao-Ming Chang, Yu-Sheng Lai, Ding-Wei Huang, Pei-Kuen Wei
A sensitive tapered optical fiber tip combined with dielectrophoretic (DEP) trapping was used to rapid and label-free detection of bacteria in water. The angular spectrum of optical field at the fiber tip was changed with surrounding refractive index (RI). By measuring far-field intensity change at the defocus plane, the intensity sensitivity was up to 95,200 %/RIU (RI unit) and the detection limit was 2.1 × 10-6 RIU at 0.2% intensity stability. By applying an AC voltage to a Ti/Al coated fiber tip and an indium-tin-oxide glass, the DEP force effectively trapped the Escherichia coli (E...
May 17, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29768827/energy-harvester-and-cell-proliferation-from-biocompatible-pmlg-nanofibers-prepared-using-near-field-electrospinning-and-electrospray-technology
#6
Cheng-Tang Pan, Chung-Kun Yen, Shao-Yu Wang, Shih-Kang Fan, Fong-Yi Ciou, Liwei Lin, J C Huang, Shiao-Wei Kuo
This paper describes the application of piezoelectric fibers and films formed using near-field electrospinning (NFES) and electrospray (ESP) technology. Poly(γ-methyl L-glutamate) (PMLG), a biocompatible material, was mixed with poly(ethylene oxide) (PEO) and surfactant to obtain a solution of appropriate viscosity and conductance. Because the orientation of the dipoles in PMLG was enhanced upon applying an electric field, we could use the NFES and ESP processes to align dipoles and enhance the piezoelectric properties of the resulting fibrous materials...
January 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29767656/a-multilayer-assembly-of-two-mixed-valence-mn16-containing-polyanions-and-study-of-their-electrocatalytic-activities-towards-water-oxidation
#7
Yu Du, Tian Yu, Zhijing Fu, Lihua Bi
Herein, two mixed-valence Mn16-containing polyanions, (Mn16) [MnIII10MnII6O6(OH)6(PO4)4(A-a-SiW9O34)4]28- (Mn16-Cs) and [MnIII4MnII12(OH)12(PO4)4(A-a-SiW9O34)4]28- (Mn16-Rb), were successfully fabricated on an indium tin oxide (ITO)-coated glass electrode and a glass carbon electrode (GCE) by a layer-by-layer assembly method. Moreover, four composite films, i.e. [PDDA/Mn16-Cs]n, [PDDA/Mn16-Rb]n, [Mn16-Cs/Rubpy]n, and [Mn16-Rb/Rubpy]n (PDDA: poly(diallyldimethylammonium chloride); Rubpy: tris(2,2'-bipyridyl)ruthenium(ii) chloride; n = 1-10), were constructed for comparison and characterized by UV-visible spectroscopy, cyclic voltammetry (CV), and X-ray photoelectron spectroscopy (XPS)...
May 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29763556/gate-defined-quantum-confinement-in-inse-based-van-der-waals-heterostructures
#8
Matthew J Hamer, Endre Tóvári, Mengjian Zhu, Michael Dermot Thompson, Alexander S Mayorov, Jonathan Prance, Yongjin Lee, Richard Haley, Zakhar R Kudrynskyi, Amalia Patanè, Daniel Terry, Zakhar D Kovalyuk, Klaus Ensslin, Andrey V Kretinin, Andre K Geim, Roman Vladislavovich Gorbachev
Indium selenide, a post-transition metal chalcogenide, is a novel two-dimensional (2D) semiconductor with interesting electronic properties. Its tunable band gap and high electron mobility have already attracted considerable research interest. Here we demonstrate strong quantum confinement and manipulation of single electrons in devices made from few-layer crystals of InSe using electrostatic gating. We report on gate-controlled quantum dots in the Coulomb blockade regime as well as one-dimensional quantization in point contacts, revealing multiple plateaus...
May 15, 2018: Nano Letters
https://www.readbyqxmd.com/read/29760500/author-correction-the-mobility-enhancement-of-indium-gallium-zinc-oxide-transistors-via-low-temperature-crystallization-using-a-tantalum-catalytic-layer
#9
Yeonwoo Shin, Sang Tae Kim, Kuntae Kim, Mi Young Kim, Saeroonter Oh, Jae Kyeong Jeong
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29756306/mussel-inspired-polydopamine-coating-for-flexible-ternary-resistive-memory
#10
Yong-Yan Zhao, Xue-Feng Cheng, Wen-Hu Qian, Jin Zhou, Jing-Hui He, Hua Li, Qing-Feng Xu, Na-Jun Li, Dong-Yun Chen, Jian-Mei Lu
In recent years, numerous organic molecules and polymers carrying various functional groups were synthesized and used in fabrication of wearable electronic devices. Compared to previous materials suffer from poisonousness, stiffness and complex film fabrication, we circumvent above matters by taking advantage of mussel-inspired polydopamine as our active material to realize random resistive access memories (RRAMs). Polydopamine thin film were grown on indium tin oxide glass catalyzed by Cu2SO4/H2O2 and characterized by Fourier infrared spectroscope (FT-IR), Ultra-violet (UV-Vis) and scanning electron microscope...
May 14, 2018: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/29755830/effects-of-substrate-and-polymer-encapsulation-on-co-2-electroreduction-by-immobilized-indium-iii-protoporphyrin
#11
Yuvraj Y Birdja, Rafaël E Vos, Tim A Wezendonk, Lin Jiang, Freek Kapteijn, Marc T M Koper
Heterogenization of molecular catalysts for CO2 electroreduction has attracted significant research activity, due to the combined advantages of homogeneous and heterogeneous catalysts. In this work, we demonstrate the strong influence of the nature of the substrate on the selectivity and reactivity of electrocatalytic CO2 reduction, as well as on the stability of the studied immobilized indium(III) protoporphyrin IX, for electrosynthesis of formic acid. Additionally, we investigate strategies to improve the CO2 reduction by tuning the chemical functionality of the substrate surface by means of electrochemical and plasma treatment and by catalyst encapsulation in polymer membranes...
May 4, 2018: ACS Catalysis
https://www.readbyqxmd.com/read/29749963/formation-of-spherical-shaped-gan-and-inn-quantum-dots-on-curved-sin-si-surface
#12
Ilgyu Choi, Hyunjoong Lee, Cheul-Ro Lee, Kwang-Un Jeong, Jin Soo Kim
This paper reports the formation of GaN and InN quantum dots (QDs) with symmetric spherical shapes, grown on SiN/Si(111). Spherical QDs are grown by modulating initial growth behavior via gallium and indium droplets functioning as nucleation sites for QDs. Field-emission scanning electron microscope (FE-SEM) images show that GaN and InN QDs are formed on curved SiN/Si(111) instead of on a flat surface similar to balls on a latex mattress. This is considerably different from the structural properties of In(Ga)As QDs grown on GaAs or InP...
May 11, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29749231/improvement-in-electrical-characteristics-of-eco-friendly-indium-zinc-oxide-thin-film-transistors-by-photocatalytic-reaction
#13
Jun Ki Kang, Sung Pyo Park, Jae Won Na, Jin Hyeok Lee, Dongwoo Kim, Hyun Jae Kim
Eco-friendly solution-processed oxide thin-film transistors (TFTs) were fabricated through photocatalytic reaction of titanium dioxide (PRT). The titanium dioxide (TiO2 ) surface reacts with H2 O under ultraviolet (UV) light irradiation and generates hydroxyl radicals (OH∙). These hydroxyl radicals accelerate the decomposition of large organic compounds such as 2-methoxyethanol (2ME; one of the representative solvents for solution-processed metal oxides), creating smaller organic molecular structures compared with 2ME...
May 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29748920/optically-active-plasmonic-metasurfaces-based-on-the-hybridization-of-in-plane-coupling-and-out-of-plane-coupling
#14
Dong Wu, Liu Yang, Chang Liu, Zenghui Xu, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Rui Ma, Han Ye
Plasmonic metasurfaces have attracted much attention in recent years owing to many promising prospects of applications such as polarization switching, local electric field enhancement (FE), near-perfect absorption, sensing, slow-light devices, and nanoantennas. However, many problems in these applications, like only gigahertz switching speeds of electro-optical switches, low-quality factor (Q) of plasmonic resonances, and relatively low figure of merit (FOM) of sensing, severely limit the further development of plasmonic metasurface...
May 10, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29743433/indium-tin-oxide-nanoparticle-modified-glassy-carbon-electrode-for-electrochemical-sulfide-detection-in-alcoholic-medium
#15
Md Abdul Aziz, Rakan Almadi, Zain Hassan Yamani
An electrochemical sensor based on an indium tin oxide nanoparticle (ITONP)-modified glassy carbon electrode (ITONP/GCE) was developed for the detection of sulfides in alcoholic medium. The ITONP/GCE was prepared by simply dropping the aqueous solution of ITONP on the GCE surface and then drying at 40°C. The homogeneous distribution of ITONP on the GCE surfaces was confirmed by recording the camera photographs and field emission scanning electron microscopic images. The ITONP/GCE was further characterized with energy dispersive X-ray spectrometry, X-ray photoelectron spectroscopy and X-ray diffractometry to identify the surface chemical composition and crystallinity...
2018: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/29741872/high-performance-solution-processed-quantum-dot-light-emitting-field-effect-transistors-with-a-scandium-incorporated-indium-oxide-semiconductor
#16
Penghui He, CongBiao Jiang, Linfeng Lan, Sheng Sun, Yuzhi Li, Peixiong Gao, Peng Zhang, Xingqiang Dai, Jian Wang, Junbiao Peng, Yong Cao
Light-emitting filed-effect transistors (LEFETs) have attained great attention due to its special characteristic with both of the switching capacity and the electroluminescence capacity. However, high performance LEFETs with high mobility, high brightness and high efficiency have not been realized due to the difficulty in developing high electron and hole mobility materials with suitable band structures. In this paper, quantum-dot hybrid LEFETs (QD-HLEFETs) combined high luminous-efficiency quantum dots (QDs) and solution-processed scandium-incorporated indium oxide (Sc:In2O3) semiconductor were demonstrated...
May 9, 2018: ACS Nano
https://www.readbyqxmd.com/read/29741864/patterned-liquid-metal-contacts-for-printed-carbon-nanotube-transistors
#17
Joseph B Andrews, Kunal Mondal, Taylor Neumann, Jorge A Cardenas, Justin Wang, Dishit P Parekh, Yiliang Lin, Peter Ballentine, Michael D Dickey, Aaron D Franklin
Flexible and stretchable electronics are poised to enable many unique applications that cannot be realized with traditional, rigid devices. One of the most promising options for low-cost stretchable transistors are printed carbon nanotubes (CNTs). However, a major limiting factor in stretchable CNT devices is the lack of a stable and versatile contact material that forms both the interconnects and contact electrodes. In this work, we introduce the use of eutectic gallium-indium (EGaIn) liquid metal for electrical contacts to printed CNT channels...
May 9, 2018: ACS Nano
https://www.readbyqxmd.com/read/29738001/nanoscale-morphology-and-electronic-coupling-at-the-interface-between-indium-tin-oxide-and-organic-molecular-materials
#18
Andrea Lorenzoni, Adriano Mosca Conte, Alessandro Pecchia, Francesco Mercuri
The correlation between nanoscale morphology and charge injection rates at the interface between an organic semiconductor layer and a transparent metal oxide electrode was investigated by integrating molecular dynamics simulations with electronic structure calculations. The simulation approach proposed has been applied to the analysis of the hole injection mechanism at the interface between an amorphous layer of tris[(3-phenyl-1H-benzimidazol-1-yl-2(3H)-ylidene)-1,2-phenylene]Ir (DPBIC), a hole transport and emitter molecule, and the surface of indium tin oxide (ITO), a material commonly used as anode in OLEDs...
May 8, 2018: Nanoscale
https://www.readbyqxmd.com/read/29736934/reverse-offset-printed-ultrathin-ag-mesh-for-robust-conformal-transparent-electrodes-for-high-performance-organic-photovoltaics
#19
Zhi Jiang, Kenjiro Fukuda, Xiaomin Xu, Sungjun Park, Daishi Inoue, Hanbit Jin, Masahiko Saito, Itaru Osaka, Kazuo Takimiya, Takao Someya
Mechanically durable transparent electrodes are needed in flexible optoelectronic devices to realize their long-term stable functioning, for applications in various fields such as energy, healthcare, and soft robotics. Several promising transparent electrodes based on nanomaterials have been previously reported to replace the conventional and fragile indium-tin oxide (ITO); however, obtaining feasible printed transparent electrodes for ultraflexible devices with a multistack structure is still a great challenge...
May 7, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29735937/fast-response-and-spontaneous-alignment-in-liquid-crystals-doped-with-12-hydroxystearic-acid-gelators
#20
Hui-Chi Lin, Chih-Hung Wang, Jyun-Kai Wang, Sheng-Feng Tsai
The spontaneous vertical alignment of liquid crystals (LCs) in gelator (12-hydroxystearic acid)-doped LC cells was studied. Gelator-induced alignment can be used in both positive and negative LC cells. The electro-optical characteristics of the gelator-doped negative LC cell were similar to those of an LC cell that contained a vertically aligned (VA) host. The rise time of the gelator-doped LC cell was two orders of magnitude shorter than that of the VA host LC cell. The experimental results indicate that the gelator-induced vertical alignment of LC molecules occurred not only on the surface of the indium tin oxide (ITO) but also on the homogeneous alignment layer...
May 7, 2018: Materials
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