Uda Hashim, Prof. Ts. Dr.: Recent submissions
Now showing items 141-160 of 244
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Structural and optical investigations of cadmium sulfide nanostructures for optoelectronic applications
(Elsevier Ltd., 2012-11)Cadmium sulfide (CdS) nanostructures were deposited on glass substrates by sol–gel spin coating technique. X-Ray Diffraction (XRD) results have indicated that the formation of CdS has hexagonal structure. The lattice constants ... -
Further optical properties of CdX (X¼ S, Te) compounds under quantum dot diameter effect: Ab initio method
(Elsevier Ltd., 2012-09)For energy band calculations, the indirect energy gap (G X) is calculated using density functional theory (DFT) of the full potential-linearized augmented plane wave (FP-LAPW) method as implemented in WIEN2K code. The ... -
Structural and impedance spectroscopy study of Al-doped ZnO nanorods grown by sol-gel method
(Emerald Group Publishing Limited, 2012)Purpose – The purpose of this paper is to investigate the electrical transport mechanism of the Al-doped ZnO nanorods at different temperatures by employing impedance spectroscopy. Design/methodology/approach – Al-doped ... -
Characterisation, analysis and optical properties of nanostructure ZnO using the sol-gel method
(Institution of Engineering and Technology (IET), 2012-02)Nanostructure ZnO was grown on thin aluminium layer, deposited on silicon substrate using the sol-gel method. The surface morphologies of nanostructure ZnO at different precursor concentrations were studied using scanning ... -
Mask design for the reproducible fabrication and reliable pattern transfer for polysilicon nanowire
(Institute of Electrical and Electronics Engineers (IEEE), 2012)In fabrication of Nanowire alignment and exposure are the most critical steps in photolithography process, the resolution requirements and precise alignment are vital, each mask needs to be precisely aligned with original ... -
Micro/nanoscale biosensing in microfluidics: Selection of polymers and microstructures
(AENSI Publications, 2012-01)Microfluidic techniques based on nanotechnology for miniaturized lab-on-chip systems have recently received huge research attention because of its undisputable and widespread biomedical applications. For the development ... -
Three-dimensional channel design and fabrication in Polydimethylsiloxane (PDMS) elastomers using capillary action mechanism in fluidics for life sciences
(AENSI Publications, 2012-04)A simple design and fabrication for a 3D microchannel that could be used as a mixer in microfluidic flow system with minimum sample available, analysis using COMSOL 3.5 Multiphysics simulation and fabricated using ... -
The usage of max 262 as a programmable low pass filter for nanogap automated permittivity measurement system
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)The Nanogap Automated Permittivity Measurement System (APMS) are fabricated for low cost, portable and label free DNA hybridization detection kit. The nanogap capacitor can react as a DNA sensor. The difference ... -
Synthesis of silicon carbide nanotubes from carbon nanotubes and silicon dioxide by microwaves irradiation
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)In this study, an attempt to fabricate silicon carbide nanotubes (SiCNTs) from the reactions between multiwalled carbon nanotubes (MWCNTs) and silicon dioxide (SiO2) is presented. Shape Memory Synthesis (SMS) method ... -
Brief review on ZnO Synthesis methods, thin film & nanowire gas sensors
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)ZnO nanowires are ideal building blocks for a wide range of nanoscale electronics, optoelectronics, and chemical sensing devices. The material properties change when the material is in nanowire form as compare to thin film ... -
Study of the cycle time behavior for product scaling 0.16um and smaller in foundry
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)This research is to study the cycle time behavior for 0.16um and smaller geometry for wafer product once its started in wafer manufacturing facility. The overall configuration of the process, product, manufacturing and ... -
Development of carbon nanotube based biosensor fabrication for medical diagnostics application
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Carbon nanotubes are tiny hollow cylinders, made from a single grapheme sheet, that possess many amazing properties. Another reason why nanotubes have generated intense research activities from scientists of various ... -
Application of e-beam lithography for nanowire development
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Miniaturization and performance improvements are driving the electronics industry to shrink the feature size of semiconductor device. Because of its diffraction limit, conventional photolithography is becoming increasingly ... -
Design development of SOI based biologically sensitive field-effect transistor (Bio-FET) for earlier detection of cancer cell
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Cancer cell is a class of disease in which group of cell that display uncontrolled growth, invasion and metastasis. For late stage of cancer cell detection, it is classified as an incurable disease. Hence, SOI Based ... -
NanoDNA chip for the detection of porcine derivatives in halal products
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Pig (Sus scrofa) mitochondrial genome was analyzed for AluI sites by NEB cutter version 2 and REBASE softwares. Out of 66 AluI fragments, five were selected as probes for the construction of porcine mitochondrial DNA ... -
Formation of Si nanostructure using size reduction technique
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)A simple method for the fabrication of nanogaps using conventional photolithography combined with pattern-size reduction techniques is presented. Silicon material is used to fabricate the nanogap structure and gold is used ... -
Analysis of optimum dispatching policies for semiconductor fabrication
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)This paper focuses on the comparison of the lot dispatching policies to reveal results for optimum product cycle time. The model is based on the 200mm-wafer size, 12K product Work In Progress (WIP), 10 product mixes in the ... -
Photodynamic damage in liver carcinoma HepG2 cells
(Institute of Electrical and Electronics Engineers (IEEE), 2012-02-27)Cirrhosis is the consequence of chronic liver disease, which is common in people of Asian countries. In this experimental approach, HepG2 cells are treated as experimental model (appropriate biological sample), extracted ... -
Study of ZnO thin film on silicon substrate by sol-gel spin coating method for bio-medical application
(Institute of Electrical and Electronics Engineers (IEEE), 2012-02-27)Transparent semiconductor ZnO thin films deposited on p-Si (100) substrates with different solvent (Methanol and Ethanol) were obtained by sol-gel method. The coated ZnO films were annealed in furnace at 500°C for 2 hours. ... -
Microstructure and polymer choice in microfluidic interfacing for nanoscale biosensing
(Institute of Electrical and Electronics Engineers (IEEE), 2012-02-27)Miniaturization of Biosensors based on nanotechnology are rapidly developing with gaining of undisputable ground and are becoming widespread in the biomedical with capability of improving the existing current diagnosis ...