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Browsing BITS Faculty Publications by Author "Benedict, Samatha"

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Activate Zeolite Filter: A gas sensor signal stabilization and enhancement

Benedict, Samatha (IEEE, 2019)

In this report, we investigate zeolite as a humidity filter by optimizing its heating temperature providing constant humidity to the gas sensor chip. The metal oxide semiconductor (MOS) based gas sensor signals are prone ...
Colloidal lithography nanostructured Pd/PdOx core–shell sensor for ppb level H2S detection

Benedict, Samatha (IOP, 2018-04)

In this work we report on plasma oxidation of palladium (Pd) to form reliable palladium/palladium oxide (Pd/PdOx) core–shell sensor for ppb level H2S detection and its performance improvement through nanostructuring using ...
Enhanced sensor life using UV treatment of sulphur poisoned Pt-PtOx

Benedict, Samatha (Elsevier, 2019-04)

In this work,we report a novel method for recovery of sulphur poisoned platinum/platinum oxide (Pt-PtOx) core-shell nanowire sensor using UV irradiation.The optimum core to shell thickness ratio and the operating conditions ...
Heterogenous Integration of MEMS Gas Sensor using FOWLP : Personal Environment Monitors

Benedict, Samatha (IEEE, 2020)

The exponentially increasing global population has led to environmental pollution which drastically affects human health; emphasizing the need for personal environmental monitoring. This demands the development of wearable ...
A High Spatial Resolution Surface Electromyography (sEMG) System Using Fan-Out Wafer-Level Packaging on FlexTrate™

Benedict, Samatha (IEEE, 2020)

We demonstrate a fully integrated wireless surface electromyography (sEMG) system using Fan-Out Wafer-Level Packaging on a flexible biocompatible package with two corrugated high conductivity electroplated Cu wiring levels ...
Low power gas sensor array on flexible acetate substrate

Benedict, Samatha (IOP, 2017-06)

In this paper, we present a novel approach of fabricating a low-cost and low power gas sensor array on flexible acetate sheets for sensing CO, SO2, H2 and NO2 gases. The array has four sensor elements with an integrated ...
Microwave-Synthesized NiO as a Highly Sensitive and Selective Room-Temperature NO2 Sensor

Benedict, Samatha (IOP, 2018-04)

In this work, we report microwave-assisted deposition of NiO for application as room- temperature NO2 sensor. The synthesis conditions are varied to arrive at the optimum film for sensing NO2. The optimum NiO film shows ...
Multi-Peaked Velocity Spectrum of a AC-Electric-Field-Induced Electrolytic Flow with Microelectrodes

Benedict, Samatha (Applied Mechanics and Materials, 2012-11)

We study the electrolytic flow in a system of coplanar parallel electrodes subjected to an AC field. The model system has been thoroughly examined numerically for a large range of frequencies of the applied potential where ...
Nanodisc Decorated W–WO x Suspended Nanowire: A Highly Sensitive and Selective H2S Sensor

Benedict, Samatha (IEEE, 2019-03)

In this paper, we report room temperature synthesis of plasma oxidized, suspended tungsten-tungsten oxide (W-WOx) core-shell nanowire for sensing ppb level H 2 S. The electric field modulation at the W-WOx interface of the ...
Nanowire Impregnated Poly-dimethyl Siloxane for Flexible, Thermally Conductive Fan-Out Wafer-Level Packaging

Benedict, Samatha (IEEE, 2020)

FlexTrate TM , a flexible hybrid electronics (FHE) platform based on fan-out wafer level packaging (FOWLP) has demonstrated low die shift by using room temperature cured poly-dimethyl siloxane (PDMS) as a molding compound. ...
Plasma Oxidized Suspended Core-Shell Nanostructures for High Performance Metal Oxide Gas sensors

Benedict, Samatha (IEEE, 2019)

We report on the novel technique of creating core-shell metal-metal oxide high performance gas sensors using plasma oxidation of a suspended metal thin film. We demonstrate that this technique is very generic by realizing ...
Plasma Oxidized W-WOx Sensor for Sub-ppm H2S Detection

Benedict, Samatha (MDPI, 2017-08)

In this work we have fabricated W-WOx core-shell nanowire structure using plasma oxidation, a CMOS compatible process, for sensing H2S gas. For comparison, the sputtered stack structure of W-WOx with different thickness ...
A Suspended Low Power Gas Sensor With In-Plane Heater

Benedict, Samatha (IEEE, 2017-02)

An ultralow power suspended gas sensor with in-plane heater and nano gap sensor electrodes is presented. The heater and sensing electrodes, separated by 1-μm air gap, are processed using single lithography step with standard ...
An ultralow power nanosensor array for selective detection of air pollutants

Benedict, Samatha (IOP, 2019-10)

Semiconducting metal oxide gas sensors typically operate at a high temperature and consume hundreds of milliwatts of power. Therefore there is great demand for the development of a low-power gas-sensing technology that can ...

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