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# IET Micro & Nano Letters

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Displaying Results 1 - 19 of 19
• ### Controllable synthesis of hierarchical ZnO microstructures via a hydrothermal route

Publication Year: 2011, Page(s):741 - 744
| | PDF (393 KB)

Hierarchical ZnO superstructures assembled by ZnO nanorods have been successfully constructed in mixed solvents of ethylene glycol (EG)-water via a facile hydrothermal method. ZnO nanostructures with dumb-bell-like and microsphere morphologies were obtained by only a change of the precursor concentration. The products were characterised by means of X-ray powder diffraction (XRD), scanning electron... View full abstract»

• ### Rapid pathogen detection using an organic field effect transistor

Publication Year: 2011, Page(s):745 - 748
| | PDF (381 KB)

A pentacene field effect transistor (FET) for the detection of DNA from pathogenic organisms is fabricated. The pentacene FET is an excellent candidate for disposable sensor applications because of its low-cost fabrication process and fast detection. A viral (λ-phage) genomic DNA was chosen as a model organism and its presence was successfully detected by probe DNA hybridisation on the pent... View full abstract»

• ### In situ method of densification for powder-based piezoelectric thick films for microelectromechanical system applications

Publication Year: 2011, Page(s):749 - 754
Cited by:  Papers (1)
| | PDF (743 KB)

Piezoelectric (PZT) (Pb(Zr0.52Ti0.48)O3) thick film-based microtransducers demonstrate excellent piezoelectric performances. PZT thick films on Si-based substrate can be used as piezoelectric actuators and sensors with the introduction of microelectromechanical system technology and the screen printing method. However, the thick films made just by the screen printi... View full abstract»

• ### Steps to fabricate 3D overhanging nanostructures using focused ion beam

Publication Year: 2011, Page(s):755 - 758
| | PDF (327 KB)

Novel methodologies to overcome some of the difficulties in standard deposition procedures in focused ion beam (FIB) systems to fabricate 3D nanostructures are described. The geometrical restriction put on by the position of electron and ion columns and the precursor gas needles in a conventional FIB chamber, complicates the 3D fabrication process. As case studies, wide vertical walls and overhang... View full abstract»

• ### Dosimeter based on silver-nanoparticle precursors for medical applications with linear response over a wide dynamic range

Publication Year: 2011, Page(s):759 - 762
| | PDF (291 KB)

In this Letter the authors study a liquid detector based on Ag nanoparticles for dosimetry purposes. They use two different concentrations of silver nitrate (1 mM AgNO3) and sodium citrate (1 and 0.1% C6H5O7Na3) as precursors for the formation of Ag nanoparticles in an aqueous colloidal solution. The authors utilise a linear accelerator to exp... View full abstract»

• ### Optoelectronic property and sensing applications of crystalline nano/microwires of decacyclene

Publication Year: 2011, Page(s):763 - 766
| | PDF (275 KB)

The characterisation and potential sensing applications of nano- and microwires of decacyclene are reported in this study. Attenuated total reflection infrared and differential thermal analyses reveal that the nano/microstructures are composed of aggregated decacyclene molecules that are held by π-π interactions. Transmission electron microscopy images and the electron diffraction pa... View full abstract»

• ### Structural and optical properties of ZnO thin films prepared by sol-gel method

Publication Year: 2011, Page(s):767 - 769
Cited by:  Papers (1)
| | PDF (401 KB)

In this Letter thin films of zinc oxide (ZnO) are prepared by sol-gel method and deposited on glass substrate to evaluate structural and optical properties of the film. The films were grown at different thicknesses in the range of 100-180-nm. The properties of layers were characterised using X-ray diffractometer (XRD), atomic force microscope (AFM) and optical spectrophotometer to evaluate the qua... View full abstract»

• ### Non-destructive and controllable catalyst deposition of in situ growing carbon nanotubes onto the carbon fibre fabric

Publication Year: 2011, Page(s):770 - 773
| | PDF (358 KB)

To in situ grow carbon nanotubes (CNTs) on the surface of carbon fibre fabric (CFF) with suitable diameter and uniform distribution, controllable catalyst deposition is the key process. A controllable and non-destructive pre-treatment, that is, electrochemical oxidation pre-treatment, was explored to facilitate uniform seeding nano-sized catalyst particles on the surface of CFF without ca... View full abstract»

• ### Synthesis and characterisation of CuO nanorods via a hydrothermal method

Publication Year: 2011, Page(s):774 - 776
Cited by:  Papers (1)
| | PDF (244 KB)

CuO nanorods were synthesised on a large scale via a simple hydrothermal method. CuCl2·2H2O and cetyltrimethylammonium bromide (CTAB) were used as the copper source and surfactant, respectively. The microstructure and morphology of the CuO nanorods were examined by X-ray diffraction, Raman spectrum, field-emission scanning electron microscopy, transmission electron mic... View full abstract»

• ### Power VDMOS transistor with the step oxide trench breaks the limit line of silicon

Publication Year: 2011, Page(s):777 - 780
| | PDF (283 KB)

A power vertical double-diffusion metal-oxide-semiconductor (VDMOS) transistor is designed with the step oxide trench based on the oxide-bypassed concept proposed by Liang and co-workers. It is suitable for breakdown voltage below 300 V to obtain ultra-low specific on-resistance. The electric field of the drift region is modulated because of the new electric field peak introduced by the various th... View full abstract»

• ### Synthesis and photoluminescence study of Ce3+/Dy3+-activated KLa(WO4)2 phosphors

Publication Year: 2011, Page(s):781 - 784
| | PDF (259 KB)

In this study, the authors report the synthesis of Ce3+- and Dy3+-activated double potassium lanthanum tungstates [KLa(WO4)2], prepared by solid-state diffusion method. The prepared phosphors were characterised by X-ray diffraction, scanning electron microscopy and photoluminescence (PL) techniques. The PL spectra of KLa(WO4)2:Dy... View full abstract»

• ### Numerical investigation and optimisation of hollow-core photonic crystal fibre for optical trapping of fluorescent microparticles

Publication Year: 2011, Page(s):785 - 789
| | PDF (445 KB)

This Letter proposes and demonstrates the optical trapping of fluorescence sample in a transversely-probed microstructured hollow-core photonic crystal fibres (HC-PCFs). The transmission intensity distribution at the central core of liquid-filled HC-PCFs with different central wavelengths is monitored for both the transverse electric and transverse magnetic modes, with illumination in the Γ... View full abstract»

• ### Influence of TiC nanoparticles on microstructures and properties of electrodeposited Ni-P coatings

Publication Year: 2011, Page(s):790 - 793
| | PDF (233 KB)

Electrodeposited composite coatings show large development potential, thanks to particular properties obtained by the incorporation of particles. In the present work, Ni-P and Ni-P/nano-TiC coatings were electroplated on steel substrates. X-ray diffraction technique, scanning electron microscopy, energy-dispersive analytical X-ray, microhardness, potentiodynamic polarisation and electrochemical im... View full abstract»

• ### Atomic force microscopy tip-sample interaction analysis using nanocontact mechanic models

Publication Year: 2011, Page(s):794 - 798
Cited by:  Papers (1)
| | PDF (263 KB)

Various nanocontact mechanic models have been proposed for modelling of the atomic force microscopy (AFM) cantilever tip and its interaction with the sample. In this Letter, the role of adhesion force on tip-sample contact radius and applied load are compared using different nanocontact mechanic models including Hertz, Derjaguin-Muller-Toporov, Johnson-Kendall-Roberts-Sperling, Burnham-Colton-Poll... View full abstract»

• ### Resistance-switching behaviour in ZnO-Nb2O5 thin films for non-volatile memory application

Publication Year: 2011, Page(s):799 - 801
| | PDF (311 KB)

The microstructure and resistance switching characteristics of polycrystalline ZnO-Nb2O5 thin films prepared by the sol-gel method on indium tin oxide (ITO)/glass substrates at different annealing temperatures followed by annealing in oxygen have been investigated. The selected-area diffraction pattern showed that the deposited films exhibited a polycrystalline microstructure... View full abstract»

• ### Investigation of loading and release of guest molecules from hollow mesoporous silica spheres

Publication Year: 2011, Page(s):802 - 805
| | PDF (258 KB)

The authors report, for the first time, the investigation of loading and release of guest molecules from the hollow mesoporous silica (HMS) spheres by using confocal laser scanning microscopy (CLSM) technique. The HMS spheres with particle size of 800-1200-nm and peak pore size of 2.5-nm were well prepared by using the carbon spheres templating method. Using rhodamine 6G (Rho-6G) dye as guest mole... View full abstract»

• ### Facile synthesis and magnetic properties of cross α-Fe2O3 nanorods

Publication Year: 2011, Page(s):806 - 808
| | PDF (246 KB)

Novel cross α-Fe2O3 nanorods were obtained by forced hydrolysis of ferric chloride in the water solution system. The as-obtained products were characterised by X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectrum, Brunauer-Emmett-Teller and vibrating sample magnetometry. XRD results revealed that the product exhibited α-Fe2O... View full abstract»

• ### Fabrication of polydimethylsiloxane microlens arrays by surface tension induced liquid separation

Publication Year: 2011, Page(s):809 - 811
| | PDF (367 KB)

This Letter presents a novel fabrication method to build polymer microlens arrays. The key mechanism of the fabrication process is surface tension, which induces liquid separation phenomenon when a post is immersed and detached from a bottom liquid mixture. The surface tension also acts on the formation of lens surface at liquid-air interface resulting in an excellent surface roughness. The surfac... View full abstract»

• ### Solution combustion synthesis of Cu nanoparticles: a role of oxidant-to-fuel ratio

Publication Year: 2011, Page(s):812 - 815
| | PDF (270 KB)

Solution combustion synthesis technique is one of the novel techniques used to prepare nanoparticles, nanocomposite and ceramic oxides. The authors prove in this study the usefulness of the technique in producing copper nanoparticles. In solution combustion, the stoichiometric ratio, according to propellant chemistry, needs the oxidiser-to-fuel ratio to be unity. The combustion of cupric nitrate a... View full abstract»

## Aims & Scope

Micro & Nano Letters offers express publication of short research papers presenting research conducted at the forefront of micro- and nanoscale science, engineering and technology, with at least one dimension ranging from a few tens of micrometres to a few nanometres.

Full Aims & Scope

## Meet Our Editors

Editors-in-Chief
Professor Gwo-Bin Vincent Lee
National Tsing-Hua University, Taiwan

Professor Peter Dobson
University of Oxford, UK