In this study, the perovskite layers were prepared by two-step wet process with different CH3NH3I (MAI) concentrations. The cell structure was glass/FTO/TiO2-mesoporous/CH3NH3PbI3 (MAPbI3)/spiro-OMeTAD/Ag. The MA...
Authors: Lung-Chien Chen, Kuan-Lin Lee, Wen-Ti Wu, Chien-Feng Hsu, Zong-Liang Tseng, Xiao Hong Sun and Yu-Ting Kao
Quantum mechanics states that hopping integral between local orbitals makes the energy band dispersive. However, in some special cases, there are bands with no dispersion due to quantum interference. These ban...
Tungsten (W) was coated onto a silicon (Si) anode at the nanoscale via the physical vaporization deposition method (PVD) to enhance its electrochemical properties. The characteristics of the electrode were ide...
Authors: Byung Dae Son, Jun Kyu Lee and Woo Young Yoon
A versatile synthetic route based on magnetic Fe3O4 nanoparticle (MNP) prefunctionalization with a phosphonic acid monolayer has been used to covalently bind the gH625 peptide on the nanoparticle surface. gH625 i...
Authors: C. Tudisco, M. T. Cambria, A. E. Giuffrida, F. Sinatra, C. D. Anfuso, G. Lupo, N. Caporarello, A. Falanga, S. Galdiero, V. Oliveri, C. Satriano and G. G. Condorelli
A one-step method which involves exfoliating graphite materials (GIMs) off into graphene materials (GEMs) in aqueous suspension of CL-20 and forming CL-20/graphene materials (CL-20/GEMs) composites by using ba...
Authors: Baoyun Ye, Chongwei An, Yuruo Zhang, Changkun Song, Xiaoheng Geng and Jingyu Wang
The dependences of the two-dimensional to three-dimensional growth (2D-3D) critical transition thickness on the composition for GeSiSn films with a fixed Ge content and Sn content from 0 to 16% at the growth t...
Authors: Vyacheslav Timofeev, Alexandr Nikiforov, Artur Tuktamyshev, Vladimir Mashanov, Michail Yesin and Aleksey Bloshkin
Abrasive flow polishing plays an important part in modern ultra-precision machining. Ultrafine particles suspended in the medium of abrasive flow removes the material in nanoscale. In this paper, three-dimensi...
Authors: Junye Li, Wenqing Meng, Kun Dong, Xinming Zhang and Weihong Zhao
The combination of graphene with transition metal oxides can result in very promising hybrid materials for use in energy storage applications thanks to its intriguing properties, i.e., highly tunable surface a...
Authors: Stefanos Chaitoglou, Roger Amade and Enric Bertran
As one of the simple and efficient routes to access two-dimensional materials, liquid exfoliation has received considerable interest in recent years. Here, we reported on high-efficient liquid exfoliation of h...
Authors: Bangwen Zhang, Qian Wu, Huitao Yu, Chaoke Bulin, He Sun, Ruihong Li, Xin Ge and Ruiguang Xing
We consider attacks on two-way quantum key distribution protocols in which an undetectable eavesdropper copies all messages in the message mode. We show that under the attacks, there is no disturbance in the m...
This work presents a multi-degrees-of-freedom motion parameter measurement method based on the use of cross-coupling diffraction gratings that were prepared on the two sides of a polydimethylsiloxane (PDMS) su...
Authors: Junping Duan, Qiang Zhu, Kun Qian, Hao Guo and Binzhen Zhang
A specific absorption rate of a dilute assembly of various random clusters of iron oxide nanoparticles in alternating magnetic field has been calculated using Landau–Lifshitz stochastic equation. This approach...
Authors: N. A. Usov, O. N. Serebryakova and V. P. Tarasov
Valence-skip compound is a good candidate with high Tc and low anisotropy because it has a large attractive interaction at the site of valence-skip atom. However, it is not easy to synthe...
Freedom of design that was introduced as organic photovoltaic (OPV) modules were fabricated by printing. As proof-of-concept, we show OPV leaf fabrication in A5 size using gravure and rotary screen printing pr...
Authors: M. Välimäki, E. Jansson, P. Korhonen, A. Peltoniemi and S. Rousu
The gas-sensing properties of antimony sulfoiodide (SbSI) nanosensors have been tested for humidity and carbon dioxide in nitrogen. The presented low-power SbSI nanosensors have operated at relatively low temp...
Authors: Krystian Mistewicz, Marian Nowak, Regina Paszkiewicz and Anthony Guiseppi-Elie
The paper deals with application of three nanomaterial systems: undoped TiO2, chromium-doped TiO2:Cr and TiO2-SnO2 synthesized by flame spray synthesis (FSS) technique for hydrogen sensing. The emphasis is put on...
In this report, we experimentally investigate the formation of “flower-like silver structures” on graphene. Using an electrochemical deposition technique with deposition times of 2.5 and 5 min, agglomerations ...
Authors: Rozalina Zakaria, Siti Fatimah Az Zahra Yusoff, Kok Chung Law, Chin Seong Lim and Harith Ahmad
In this work, the development of a new crystallization technique is reported, using nitrogen plasma (AC) to obtain nanostructured anatase and rutile from amorphous titanium oxide (TiO2). This methodology increase...
Authors: R. Trejo-Tzab, Liliana Caballero-Espada, P. Quintana, Alejandro Ávila-Ortega and R. A. Medina-Esquivel
The development of new exchange-correlation functionals within density functional theory means that increasingly accurate information is accessible at moderate computational cost. Recently, a newly developed s...
Authors: Daniel Fritsch, Benjamin J. Morgan and Aron Walsh
In this work, the adsorption kinetics of p-nitrophenol (PNP) onto several commercial activated carbons (ACs) with different textural and geometrical characteristics was studied. For this aim, a homogeneous dif...
Authors: E. Sabio, F. Zamora, C. M. González-García, B. Ledesma, A. Álvarez-Murillo and S. Román
The polarization fields in c-plane InGaN/(In)GaN multiple quantum well (MQW) structures grown on sapphire substrate by metal-organic chemical vapor deposition are investigated in this paper. The indium composi...
Authors: Feng Zhang, Masao Ikeda, Shu-Ming Zhang, Jian-Ping Liu, Ai-Qin Tian, Peng-Yan Wen, Yang Cheng and Hui Yang
Dispersion stability of nanoparticles in the liquid media is of great importance to the utilization in practice. This study aims to investigate the effects of mechanical dispersion method on the dispersibility...
Authors: Yu-zhen Lv, Chao Li, Qian Sun, Meng Huang, Cheng-rong Li and Bo Qi
Utilizing first-principles theory, we demonstrate that half-metallicity can be realized in a junction composed of non-magnetic armchair graphene nanoribbon (AGNR) and ferromagnetic Ni electrodes. The half-meta...
Authors: Hongmei Liu, Hisashi Kondo and Takahisa Ohno
In this work, prawn shell was studied as raw material for the production of mesoporous adsorbents via hydrocarbonization, studying the effect of temperature and time on the process reactivity and final charact...
Authors: S. Román, B. Ledesma, A. Álvarez-Murillo, E. Sabio, J. F. González and C. M. González
Self-assembled nanoholes are drilled into (001) AlGaAs surfaces during molecular beam epitaxy (MBE) using local droplet etching (LDE) with Al droplets. It is known that this process requires a small amount of ...
Authors: Christian Heyn, Michel Zocher, Sandra Schnüll and Wolfgang Hansen
Surface charge is one of the most significant properties for the characterisation of a biomaterial, being a key parameter in the interaction of the body implant with the surrounding living tissues. The present...
Authors: Martina Lorenzetti, Ekaterina Gongadze, Mukta Kulkarni, Ita Junkar and Aleš Iglič
We study the surface morphology and chemical composition of SiGe layers after their formation under high-temperature annealing at 800–1100 °C of 30–150 nm Ge layers deposited on Si(100) at 400–500 °C. It is fo...
Tunneling I–V characteristics between very narrow titanium nanowires and “massive” superconducting aluminum were measured. The clear trend was observed: the thinner the titanium electrode, the broader the sing...
The bimetallic Fe-Ru oxide nanoparticles were synthesized in the liquid-phase plasma (LPP) method which employed iron chloride and ruthenium chloride as precursors. The active species (OH·, Hα, Hβ, and OI) and th...
Authors: Sung-Jin Lee, Heon Lee, Ki-Joon Jeon, Hyunwoong Park, Young-Kwon Park and Sang-Chul Jung
A complete electrical characterization of hydrogenated amorphous silicon layers (a-Si:H) deposited on crystalline silicon (c-Si) substrates by electron cyclotron resonance chemical vapor deposition (ECR-CVD) w...
Authors: Héctor García, Helena Castán, Salvador Dueñas, Luis Bailón, Rodrigo García-Hernansanz, Javier Olea, Álvaro del Prado and Ignacio Mártil
We have made a diffraction grating in an indoline azobenzene/amorphous polycarbonate film by two-beam interference at 532 nm that periodically photodegrades the indoline azobenzene dye. Subsequent illumination...
Authors: G. V. M. Williams, My T. T. Do, A. Middleton, S. G. Raymond, M. D. H. Bhuiyan and A. J. Kay
In this study, we focused on the origin on the selective deposition of rutile and anatase TiO2 thin films during the sputtering process. The observation on microstructural evolution of the TiO2 films by transmiss...
Authors: Junjun Jia, Haruka Yamamoto, Toshihiro Okajima and Yuzo Shigesato
Five hundred-nanometer-thick ZnO-based textured polycrystalline films consisting of 490-nm-thick Al-doped ZnO (AZO) films deposited on 10-nm-thick Ga-doped ZnO (GZO) films exhibited a high Hall mobility (μ
...
Authors: Junichi Nomoto, Hisao Makino and Tetsuya Yamamoto
Since Zwilling and co-workers first introduced the electrochemical anodization method to prepare TiO2 nanotubes in 1999, it has attracted a lot of researches due to its outstanding gas response and selectivity, m...
Authors: Xiaoxing Zhang, Yingang Gui and Xingchen Dong
Strain-free epitaxial quantum dots (QDs) are fabricated by a combination of Al local droplet etching (LDE) of nanoholes in AlGaAs surfaces and subsequent hole filling with GaAs. The whole process is performed ...
Authors: Achim Küster, Christian Heyn, Arne Ungeheuer, Gediminas Juska, Stefano Tommaso Moroni, Emanuele Pelucchi and Wolfgang Hansen
A set of ceria, ceria-zirconia (Ce 80 at.%, Zr 20 at.%), ceria-praseodymia (Ce 80 at.%, Pr 20 at.%) and ceria-zirconia-praseodymia (Ce 80 at.%, Zr 10 at.% and Pr 10 at.%) catalysts has been prepared by the sol...
Authors: Tahrizi Andana, Marco Piumetti, Samir Bensaid, Nunzio Russo, Debora Fino and Raffaele Pirone
Nitrogen-doped zinc oxide (N: ZnO) films have been prepared by oxidizing reactive RF magnetron-sputtering zinc nitride (Zn-N) films. The effect of oxidation temperature and oxidation time on the growth, transm...
Authors: Xuesi Qin, Guojian Li, Lin Xiao, Guozhen Chen, Kai Wang and Qiang Wang
The rhenium and technetium dichalcogenides are layered van der Waals semiconductors which show a large number of Raman-active zone-centre phonon modes as a result of their unusually large unit cells and deviat...
DNAzymes have been extensively studied as biosensors because of their unique functionality of cleaving substrate in the presence of metal ion cofactors. However, there are only a few reports on visual detectio...
In this report, self-organized indium nitride nanodots have been grown on Si (111) by droplet epitaxy method and their density can reach as high as 2.83 × 1011 cm−2 for the growth at low temperature of 250 °C. Ba...
Authors: Hugo Juin-Yu Chen, Dian-Long Yang, Tseh-Wet Huang and Ing-Song Yu
For the diagnosis and prevention of diseases, a range of strategies for the detection of pathogens have been developed. In this study, we synthesized the rolling circle amplification (RCA)-based biosensor that...
Authors: Jaepil Jeong, Hyejin Kim, Dong Jun Lee, Byung Jun Jung and Jong Bum Lee
A simple optical model for photocurrent enhancement by plasmonic metal nanoparticles atop solar cells has been developed. Our model deals with the absorption, reflection, and scattering of incident sunlight as...
Hollow carbon nanofibers (HCNFs) were prepared by electrospinning method with several coaxial nozzles, in which the level of the inner nozzle-end is adjustable. Core/shell nanofibers were prepared from poly(me...
Authors: Navaporn Kaerkitcha, Surawut Chuangchote and Takashi Sagawa
Laser-produced surface nanostructures show considerable promise for many applications while fundamental questions concerning the corresponding mechanisms of structuring are still debated. Here, we present a si...
Authors: Nail A. Inogamov, Vasily V. Zhakhovsky, Viktor A. Khokhlov, Yury V. Petrov and Kirill P. Migdal
A series of ceria nanocatalysts have been prepared to study the structure dependency of the CO oxidation reaction. The ceria samples with well-defined nanostructures (nanocubes/Ce-NC and nanorods/Ce-NR) have b...
Authors: Marco Piumetti, Tahrizi Andana, Samir Bensaid, Nunzio Russo, Debora Fino and Raffaele Pirone
In this study, we reported the synthesis of the two-dimensional (2D) nanocomposite of molybdenum disulfide and nitrogen-doped graphene oxide (MoS2/nGO) as a platinum-free counter electrode (CE) for dye-sensitized...
Authors: Chao-Kuang Cheng, Che-Hsien Lin, Hsuan-Chung Wu, Chen-Chi M. Ma, Tsung-Kuang Yeh, Huei-Yu Chou, Chuen-Horng Tsai and Chien-Kuo Hsieh
This paper presents some investigations on the optical and morphological properties of the polymer (matrix):monomer (inclusion) composite materials obtained from blends of bisphenol A polycarbonate and amidic ...
In this study, monodisperse polystyrene nanospheres were prepared by dispersion polymerization using alcohol as reaction medium to prepare colloidal clusters of the latex beads. Polyvinylpyrrolidone (PVP) and ...
Authors: Young-Sang Cho, Cheol Hwan Shin and Sujin Han
