sensitivity – TechConnect Briefs

Synthesis and Characterization of a Novel Palladium Nanostructured Ensemble Supported in Anodized Alumina Membranes for Hydrogen Sensing Applications

Méndez-Colberg H.G., Martínez-Iñesta M.M., University of Puerto Rico, Mayaguez Campus, US

A Pd/Anodic alumina membrane (AAM) ensemble was formed by using Solid State Reduction. The ensemble consisted of Pd thin films on both sides of the AAM with connecting nanowires as evidenced with Scanning Electron Microscopy [...]

Electric Double Layer Simulation on Transient State for Sensitivity Enhancement of Affinity-Based Biosensor

Woo J-M, Kim S-H, Park Y.J., Seoul National University, KR

We have presented a numerical simulation for the affinity-based electrical biosensor system on the steady and transient state. Considering the screening length in the solutions, the solution with low ion concentration can be better measurement [...]

Subthreshold Operation of Schottky Barrier Silicon Nanowire FET

Yoo S.K., Ahn J.Y., Yang S., Lee J-H., Gwangju Institute of Science & Technology (GIST), KR

This paper presents that the sensitivity of Schottky barrier silicon nanowires FET (SB-SiNWFET) is strongly modulated by the applied back gate voltage, and reveals that the operation in the subthreshold regime gives the significant enhancement [...]

Gas Sensing Properties of Zn-Doped Anisometric Fe2O3 Nanoparticles

Kim T., Sharp A.C., Yim H., Guo B., Texas A&M University, College Station, US

In this study, we synthesized nanocrystalline Zn-doped Fe2O3 by flame spray pyrolysis under different conditions, and then investigated the gas sensing characteristics of these particles. The response of the gas sensor to acetone vapor in [...]

Sensitivity of Initially Stressed Un-symmetric Micro-Layered Plate in Large Deflection due to Lateral Load

Chen C-F, Chung-Hua University, TW

Initial tension often arises in a typical micro-fabrication process. It has been well recognized that the magnitude of initial tension could be high enough to cause a serious degradation in structural performance such as the [...]

MEMS Pressure Sensor with Two Thin Film Piezoelectric Read-Out

Sun B., Zhang R., Cape Penisula University of Technology, SA

MEMS accelerometers using piezoelectric lead zirconate titanate (PZT) thin films as read-out have been attracting a great deal of attention due to their simple structures and high sensitivity. This paper proposes a model of micro [...]

Nanopillar Arrays with Superior Mechanical Strength and Optimal Spacing for High Sensitivity Biosensors

Anandan V., Rao Y.L., Zhang G., University of Georgia, US

Recently, many types of vertically aligned slender nanostructures, such as nanotubes and nanorods have been fabricated for use in biosensors development because of their increased surface area. Lately, evidence has emerged to reveal that these [...]

Design & Simulation of a Mechanical Amplifier for Inertial Sensing Applications

Kham M.N., Houlihan R., Kraft M., Southampton University, UK

This paper describes the design and simulation of a mechanical amplifier used to improve the performance of a capacitive accelerometer. It comprises a long silicon beam attached to the proof mass and it amplifies the [...]

Optimization of Integrated Magnetic Field Sensors

Lienemann J., Greiner A., Korvink J.G., Sigmund O., Albert Ludwig University, DE

We present an optimization strategy for the offset reduction of integrated magnetic field sensors with simultaneous maximization of sensitivity. We use the topology optimization method to automatically find a design with maximal sensitivity for given [...]

Design of Piezoresistive Silicon Cantilevers with Stress Concentration Regions (SCR) for Scanning Probe Microscopy (SPM) Applications

Gupta A., Bashir R., Neudeck G.W., McElfresh M., Purdue University, US

This paper describes and evaluates the incorporation of novel Stress Concentration Region (SCR) in silicon based cantilevers to enhance piezoresistive displacement, force, and torque sensitivities. In brief, SCR is a region, on the cantilever, with [...]