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Browsing BITS Faculty Publications by Author "Hazra, Arnab"

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1-D TiO2 Nanorods Array-Based Parallel Electrode Sensor for Selective and Stable Detection of Organic Vapors

Hazra, Arnab; Gangopadhyay, Subhashis (IEEE, 2020-01)

A solid-state vapor sensor in parallel electrode configuration was fabricated by employing 1-D TiO 2 nanorods as a sensing layer. Highly ordered and oriented TiO 2 nanorods were synthesized on a Ti substrate by using ...
Amplified Methanol Sensitivity in Reduced Graphene Oxide FET Using Appropriate Gate Electrostatic

Hazra, Arnab (IEEE, 2020-10)

The current study concerns a technique to amplify the gas sensitivity of reduced graphene oxide (rGO)-field-effect transistor (FET) sensor for the detection of very low concentration gaseous species. rGO channel exhibits ...
ANN based approach for selective detection of breath acetone by using hybrid GO-FET sensor array

Ajmera, Pawan K.; Hazra, Arnab (IOP, 2022-04)

This research used hybrid graphene oxide (GO) field effect transistors (FETs) based sensor array to design an electronic nose (e-nose) for identifying exhaled breath acetone to diagnose diabetes mellitus through noninvasive ...
Anodically grown nanocrystalline titania thin film for hydrogen gas sensors – a comparative study of planar and MAIM configuration

Hazra, Arnab (Elsevier, 2013-11)

Nanocrystalline titanium dioxide (TiO2) thin film was grown by UV assisted anodization of 0.25 mm thick titanium foil (99.7% pure). Room temperature electrochemical oxidation and photo etching were carried out in 0.1 M ...
Au/TiO2 Nanotubes/Ti-Based Solid-State Vapor Sensor: Efficient Sensing in Resistive and Capacitive Modes

Hazra, Arnab; Gangopadhyay, Subhashis (IEEE, 2018-05)

Fabrication of TiO 2 nanotubes-based solid-state vapor sensor (Au/TiO 2 nanotubes/Ti) and its performance analysis for both resistive- and capacitive-mode sensing mechanisms are discussed here. Highly ordered TiO 2 nanotubes ...
Capacitive gas and vapor sensors using nanomaterials

Hazra, Arnab (Springer, 2018-01)

An immense number of sensors has been reported in the literature employing various methods for the detection of different gases and vapors. This article summarizes those sensors whose sensing layer is made up of nanostructured ...
Carbon Nanomaterial Electronics: Devices and Applications

Hazra, Arnab (Springer, 2021)

Presents novel research work written by expert professionals. Covers diverse aspects of carbon nanomaterial research. Includes specific chapters on graphene, carbon nanotubes, and carbon composites
CO Gas-Sensing at Low Temperature using CuO Thin Films

Hazra, Arnab (IEEE, 2019)

Carbon monoxide (CO) is known as a silent killer, as breathing in CO gas ambient for long periods with a concentration above the tolerance limit can cause severe health hazards and even death. CO concentration as low as ...
Detection and discrimination of volatile organic compounds by noble metal nanoparticle functionalized MoS2 coated biodegradable paper sensors

Hazra, Arnab (RSC, 2020)

In the current study, noble metal nanoparticle functionalized MoS2 coated biodegradable low-cost paper sensors were fabricated for the selective detection of low concentrations of volatile organic compounds (VOCs). A MoS2 ...
Development of CdS-doped TiO2 nanocomposite as acetone gas sensor

Hazra, Arnab (Elsevier, 2021-09)

In recent years, much interest has been shifted towards the design and development of gas sensing devices for use of detecting and identifying toxic gases. In this work, a CdS doped TiO2 nanocomposite, with 1–2 wt % CdS, ...
Device Modeling of Double Layered TiO2 Nanotube Array Based Resistive Vapor Sensor

Hazra, Arnab (IEEE, 2018)

Single and double layered TiO 2 nanotube array were synthesized by anodic oxidation method. Anodization voltage was varied to develop double layered TiO 2 nanotube array. Developed materials were characterized structurally ...
Dielectric Sensor System Using TiO2 Nanotubes for Real-Time Detection of Methanol Contamination in Alcoholic Beverages

Hazra, Arnab (IEEE, 2020-09)

In this article, a portable sensor system based on a TiO2 nanotube array is described for detecting methanol contamination in alcoholic beverages. TiO2 nanotubes were synthesized on a Ti substrate by using electrochemical ...
An efficient BTX sensor based on p-type nanoporous titania thin films

Hazra, Arnab (Elsevier, 2015-03)

Sensing performance of sol–gel synthesised p-titania based sensors towards detection of low concentrations (⩽1 ppm) of benzene, toluene and xylene (BTX) at low temperature range (50°–175 °C) is presented in this article. ...
Electrochemically grown nono-structured TiO2 based low power resistive random access memory

Hazra, Arnab (IEEE, 2013)

Nano TiO 2 thin film was grown on high purity Ti foil by electrochemical anodization techniques using 1 (M) as H 2 SO 4 electrolyte. Film was annealed at 600 0 C for 1 hour to prepare rutile crystalline TiO 2 . Au metal ...
Electroless deposition of Pd/Pt nanoparticles on electrochemically grown TiO2 nanotubes for ppb level sensing of ethanol at room temperature

Hazra, Arnab (RSC, 2021)

This work presents a comparative sensing study of three sensors based on pristine TiO2 nanotubes, Pd loaded TiO2 nanotubes, and Pt loaded TiO2 nanotubes. Pristine TiO2 nanotubes were synthesized using an electrochemical ...
Fast response of UV photodetector based on Ag nanoparticles embedded uniform TiO2 nanotubes array

Hazra, Arnab (IOP, 2020)

Titanium dioxide (TiO2) has drawn a potential research interest for ultraviolent (UV) photodetector (PD) applications because of its tunable bandgap in UV absorption region, low-absorption coefficient in visible region, ...
Field-Assisted Sensitivity Amplification in a Noble Metal Nanoparticle Decorated WO3/GO Hybrid FET-Based Multisensory Array for Selective Detection of Breath Acetone

Ajmera, Pawan K.; Singhal, Rahul; Hazra, Arnab (Wiley, 2021-12)

The current work shows noble metal (Au, Pd and Pt) nanoparticles, WO3 and graphene oxide based ternary hybrid field effect transistor structured sensor array for the selective detection of breath acetone. Accurate acetone ...
Formation Mechanism of Anodically Grown Free-Standing TiO2 Nanotube Array Under the Influence of Mixed Electrolytes

Hazra, Arnab (American Scientific Publishers, 2014-04)

Electrochemical anodization technique was employed to develop the wall-separated free standing ordered TiO2 nanotube array using the mixture of fluoride based electrolyte (e.g., NH4 F or HF) with another soft electrolyte ...
Graphene Nanoribbon as Potential On-Chip Interconnect Material—A Review

Hazra, Arnab (MDPI, 2018-07)

In recent years, on-chip interconnects have been considered as one of the most challenging areas in ultra-large scale integration. In ultra-small feature size, the interconnect delay becomes more pronounced than the gate ...
Highly Repeatable Low-ppm Ethanol Sensing Characteristics of p-TiO2-Based Resistive Devices

Hazra, Arnab (IEEE, 2015-01)

In this paper, we report on the development of a highly sensitive, relatively low-temperature ethanol sensor based on sol-gel derived p-TiO 2 thin film. The p-type anatase TiO 2 thin film was deposited by sol-gel technique ...

Now showing items 1-20 of 55

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