Roya Maboudian (Advisor)

Research Advised by Professor Roya Maboudian

Maboudian Group:  List of Projects | List of Researchers

BPN942: Metal-organic Frameworks with Three-dimensional Ordered Superstructures as Plasmonic Sensing Materials

Zhou Li
Adrian Davey
Aifei Pan
2020

Assembly of particles into long-range, three-dimensional (3D), ordered superstructures is crucial for the design of a variety of materials including plasmonic sensing materials. Spherical colloidal particles (mainly silica or polymers such as polystyrene and acrylates) have traditionally been used to build assembled superstructures. Recently, great progress has also been achieved in the assembly of spherical and polyhedral inorganic-based particles. However, this progress has not led to the use of other families of purely organic or hybrid metal-organic...

Silicon Carbide and Diamond Materials Development for Micro- and Nano-Electromechanical Systems

Jingchun Zhang
Roya Maboudian
Roger T. Howe
David B. Graves
Albert P. Pisano
2007
Microelectromechanical systems (MEMS) are miniature integrated systems including both mechanical and electronic components, which are developed based on silicon integrated circuits technology. The current trend indicates two directions of MEMS technology: (1) a scaling downward to nanometer scale as nanoelectromechanical systems (NEMS); (2) a development of advanced materials that can outperform silicon. The goal of this work is to study and develop the material properties and process flows to realize the...

Silicon and Silicon Carbide Nanowires: Synthesis, Characterization, Modification, and Application as Micro-Supercapacitor Electrodes

John Paul Alper
Roya Maboudian
David B. Graves
Liwei Lin
2014
For applications in mobile and remote sensing platforms, microsupercapacitors are attractive energy storage devices due to their robust lifetimes and high specific power capacity. Utilization of green electrolytes in these devices reduces environmental impact and simplifies packaging by avoiding the stringent oxygen and moisture free conditions required for organic and ionic liquid based electrolytes. Porous silicon...

Porous and Epitaxial 3C-SiC Thin Films Technology for Micro-electromechanical Systems and Electronics Applications

Wei-Cheng Lien
Roya Maboudian
David B. Graves
Albert P. Pisano
Tsu-Jae King Liu
2008
Silicon is a widely used semiconductor material because of such factors as its high quality, stable oxide, and low cost. However, silicon-based microdevices are not suitable for harsh environments, such as high temperature, intense vibrations, erosive flows, and corrosive media, because the electric properties of silicon degrades above 250 ̊C and mechanical properties degrades above 600 ̊C. Silicon carbide is a suitable material for harsh...

Material Synthesis and Characterization for Micro-supercapacitor Applications

Benjamin Hsia
Roya Maboudian
David B. Graves
Liwei Lin
2013

Supercapacitors represent a critical energy storage device technology for applications which require higher power density and/or cycle lifetime than existing battery technologies. Micro-scale supercapacitors, in particular, can enable novel applications in autonomous, wireless microsensors and microelectronics. If these micro-supercapacitors can be fabricated in a planar, on-chip geometry, the energy storage and the ...

Fabrication and Characterization of Gecko-inspired Fibrillar Adhesive

Yongkwan Kim
Roya Maboudian
David B. Graves
Ali Javey
2014
Over the last decade, geckos remarkable ability to stick to and climb surfaces found in nature has motivated a wide range of scientific interest in engineering gecko-mimetic surface for various adhesive and high friction applications. The high adhesion and friction of its pads have been attributed to a complex array of hairy structures, which maximize surface area for van der Waals interaction between the toes and the count...

Electrochemical Approaches to Renewable Energy

Peter Lobaccaro
Joel Ager
Roya Maboudian
Alexis Bell
Ali Javey
2016
Renewable energy is becoming an increasingly important component of the world’s energy supply as the threat of global warming continues to rise. There is a need to reduce the cost of this renewable energy and a future challenge to deal with the strain intermittent power sources like renewables place on the power grid. In this dissertation, electrochemistry is harnessed to address possible solutions to both of these issues. First, it is used to develop a low...

Surface Treatments for Adhesion Reduction in Polysilicon Micromechanical Devices

Michael Robert Houston
Roya Maboudian
Roger T. Howe
David B. Graves
1996
This work investigates the interactions between polysilicon surfaces for the purpose of alleviating the strong interfacial adhesion present between contacting microstructure sufaces, a problem referred to as stiction. Without specifically-designed...

Metal Oxide Heterostructure Nanowires for Gas Sensing Applications

Sikai Zhao
2021
Spring 2021 BSAC Research Review Presentation View Slides View Presentation

BPN954: Quantum Dots Based High-performance Gas Sensors

Sikai Zhao
2020

In recent years, the demands for high-performance gas sensors are rapidly increasing in many fields including environmental monitoring, public health and security, medical diagnostics, and industrial process monitoring. Among various types of gas sensors, the resistive metal-oxide-semiconductors (MOS) are very attractive and widely applied due to their high sensitivity, low cost, facile operation, and high compatibility with microfabrication processes. The working principle of such gas sensors is based on the reversible changes in the sensor’s resistance caused by the gas adsorption and...