Dr. Alex J. Hariz Profile

Dr. Alex J. Hariz

Lecturer at Univ of South Australia

SPIE Involvement:

Author

SPIE Journal Paper | 8 September 2016

Perspectives on organolead halide perovskite photovoltaics

Alex Hariz

JPE, Vol. 6, Issue 03, 032001, (September 2016) https://doi.org/10.1117/12.10.1117/1.JPE.6.032001

KEYWORDS: Perovskite, Solar cells, Photovoltaics, Solar energy, Thin films, Electrons, Interfaces, Thin film solar cells, Heterojunctions, Metals

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Proceedings Article | 22 December 2015 Paper

Sub-bandage sensing system for remote monitoring of chronic wounds in healthcare

Alex Hariz, Nasir Mehmood, Nico Voelcker

Proceedings Volume 9668, 966853 (2015) https://doi.org/10.1117/12.2221917

KEYWORDS: Sensing systems, Wound healing, Remote sensing, Diagnostics, Sensors, Medicine, Temperature metrology, Skin, LCDs, Data transmission, Calibration

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Proceedings Article | 30 December 2008 Paper

Carbon nanotubes on polymer-based pressure micro-sensor for manometric catheters

M. F. Teng, A. Hariz, H. Y. Hsu, T. Omari

Proceedings Volume 7269, 726911 (2008) https://doi.org/10.1117/12.814392

KEYWORDS: Sensors, Electrodes, Polymers, Carbon nanotubes, Dielectrophoresis, Aluminum, Polymeric sensors, Silicon, Semiconducting wafers, Prototyping

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In this paper we investigate the fabrication process of a novel polymer based pressure micro-sensor for use in manometric measurements in medical diagnostics. Review and analysis of polymer materials properties and polymer based sensors has been carried out and has been reported by us elsewhere [1]. The interest in developing a novel polymer based flexible pressure micro-sensor was motivated by the numerous problems inherent in the currently available manometric catheters used in the hospitals. The most critical issue regarding existing catheters was the running and maintenance costs [2]. Thus expensive operation costs lead to reuse of the catheters, which increase the risk for disease transmission. The novel flexible polymer based pressure micro-sensor was build using SU-8, which is a special kind of negative photoresist. Single-walled carbon nanotubes (SWCNTs) and aluminum are used as the sensing material and contacting electrodes respectively. The pressure sensor diaphragm was first patterned on top of an oxidized silicon wafer using SU-8, followed by aluminum deposition to define the electrodes. The carbon nanotube is then deposited using dielectrophoresis (DEP) process. Once the carbon nanotubes are aligned in between these electrodes, the remaining of the sensor structure is formed using SU-8. Patterning of SU-8 and release from the substrate make the device ready for further testing of sensing ability. This research not only investigates the use of polymeric materials to build pressure sensors, but also explores the feasibility of full utilization of polymeric materials to replace conventional silicon materials in micro-sensors fabrication for use in medical environments. The completed sensor is expected to form an integral part of a large versatile sensing system. For example, the biocompatible artificial skin, is predicted to be capable of sensing force, pressure, temperature, and humidity, and may be used in such applications as medical and robotic system.

Proceedings Article | 28 December 2007 Paper

Flexible pressure sensor on polymeric materials

M. Teng, A. Hariz, H. Hsu, T. Omari

Proceedings Volume 6798, 67981D (2007) https://doi.org/10.1117/12.765970

KEYWORDS: Sensors, Polymers, Polymeric sensors, Microelectromechanical systems, Micromachining, Ferroelectric polymers, Carbon nanotubes, Polymer thin films, Phase transfer function, Silicon

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Proceedings Article | 28 December 2006 Paper

Optimization of wireless and batteryless power transmission for micro implants in vivo environments

Vikhyat Baxi, Alex Hariz

Proceedings Volume 6415, 64151M (2006) https://doi.org/10.1117/12.713741

KEYWORDS: Inductance, Resistance, Electromagnetic simulation, Transformers, Electronic components, Magnetism, Copper, Microtechnology, Wireless energy transfer, Transmitters

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Proceedings Article | 20 December 2006 Paper

A new disposable MEMS-based manometric catheter for in-vivo medical tests

Ming-Foey Teng, Alex Hariz, Hung-Yao Hsu

Proceedings Volume 6415, 64151L (2006) https://doi.org/10.1117/12.713739

KEYWORDS: Sensors, Prototyping, In vivo imaging, Silicon, Microelectromechanical systems, Connectors, Adhesives, Amplifiers, Diagnostics, Esophagus

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Proceedings Article | 20 December 2006 Paper

Deformable grating light modulator array for use as wavelength-selective switch

Araya Pothisorn, Alex Hariz

Proceedings Volume 6415, 64151N (2006) https://doi.org/10.1117/12.713746

KEYWORDS: Modulators, Switching, Switches, Oxides, Silicon, Dense wavelength division multiplexing, Microopto electromechanical systems, Numerical simulations, Diffraction gratings, Silicon films

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Proceedings Article | 20 December 2006 Paper

Managing design for manufacture and assembly in the development of MEMS-based products

Hung-Yao Hsu, Nachchinarkkinian Narasimhan, Alex Hariz

Proceedings Volume 6415, 64150Z (2006) https://doi.org/10.1117/12.696230

KEYWORDS: Microelectromechanical systems, Computer aided design, Manufacturing, Reliability, Design for manufacturing, Packaging, Knowledge management, Product engineering, Design for manufacturability, Standards development

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Proceedings Article | 5 January 2006 Paper

Considerations in the design of support circuitry for MEMS sensors in biomedical applications

Kerry Dunn, Alex Hariz

Proceedings Volume 6035, 603521 (2006) https://doi.org/10.1117/12.639122

KEYWORDS: Sensors, Wheatstone bridges, Integrated circuits, Integrated circuit design, Biomedical optics, Resistors, Bridges, Calibration, Lead, Multiplexing

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Proceedings Article | 5 January 2006 Paper

Design and fabrication of a MEMS-based piezoresistive pressure sensor for use in pharyngeal manometry

Richard Petty, Alex Hariz

Proceedings Volume 6035, 603522 (2006) https://doi.org/10.1117/12.641109

KEYWORDS: Sensors, Silicon, Doping, Crystals, Resistance, Etching, Chemical elements, Semiconducting wafers, Boron, Anisotropic etching

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Proceedings Article | 14 November 2002 Paper

Release and surface-passivation techniques of stiction-free micromachined structures

Alex Hariz

Proceedings Volume 4935, (2002) https://doi.org/10.1117/12.472815

KEYWORDS: Liquids, Etching, Solids, Capillaries, Microelectromechanical systems, Coating, Self-assembled monolayers, Oxides, Silicon, Plasma

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Proceedings Article | 21 November 2001 Paper

State of commercialization of MEMS: present and future prospects

Alex Hariz

Proceedings Volume 4591, (2001) https://doi.org/10.1117/12.449172

KEYWORDS: Microelectromechanical systems, Sensors, Computer aided design, Silicon, Packaging, Switches, Semiconductors, Manufacturing, Fiber optics

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Proceedings Article | 8 October 1999 Paper

Modular exponential accelerator chip based on precomputations for RSA cryptography application

Victor Ramschie, Alex Hariz, Malcolm Haskard

Proceedings Volume 3893, (1999) https://doi.org/10.1117/12.368446

KEYWORDS: Cryptography, Clocks, Multiplexers, Chromium, Very large scale integration, Binary data, Data storage, Logic, Microelectronics, Astatine

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Proceedings Article | 29 September 1999 Paper

Wide-bandgap materials for novel electronic devices and MEMS

Alex Hariz

Proceedings Volume 3891, (1999) https://doi.org/10.1117/12.364431

KEYWORDS: Gallium nitride, Microelectromechanical systems, Etching, Silicon, Sensors, Semiconductors, Electronic components, Silicon carbide, Sapphire, Crystals

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Proceedings Article | 16 April 1998 Paper

Smart electronics and microengineering: the Australian focus

Alex Hariz

Proceedings Volume 3321, (1998) https://doi.org/10.1117/12.305549

KEYWORDS: Sensors, Electronics, Microelectromechanical systems, Semiconducting wafers, Wafer bonding, Field effect transistors, Silicon, Standards development, Microelectronics, Manufacturing

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Proceedings Article | 16 April 1998 Paper

Effects of titanium-silicide coating on the electrical characteristics of field emitters

Alex Hariz, In-Jae Chung

Proceedings Volume 3321, (1998) https://doi.org/10.1117/12.305613

KEYWORDS: Titanium, Silicon, Coating, Chromium, Metals, Inspection, Reliability, Microelectronics, Field emission displays, Oxides

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Proceedings Article | 14 November 1997 Paper

Simulation of dynamic characteristics of micropumps using PSPICE

In-Byeong Kang, Alex Hariz

Proceedings Volume 3242, (1997) https://doi.org/10.1117/12.293549

KEYWORDS: Resistance, Capacitance, Device simulation, Inductance, Microfluidics, Systems modeling, Chlorine, Instrument modeling, Actuators, Optimization (mathematics)

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Proceedings Article | 23 September 1996 Paper

Analysis of field-emitter efficiency variations with geometry

In-Jae Chung, Antonino Iannella, Alex Hariz

Proceedings Volume 2881, (1996) https://doi.org/10.1117/12.251252

KEYWORDS: Etching, Silicon, Information operations, Anisotropic etching, Isotropic etching, Microelectronics, Shape analysis, Fabrication, Electron beams, Device simulation

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