Search results for: AUNP-DECORATED WO3 NANOWIRES - Bridge of Knowledge

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Search results for: AUNP-DECORATED WO3 NANOWIRES

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Search results for: AUNP-DECORATED WO3 NANOWIRES

  • Zespół Metrologii i Optoelektroniki

    * komputerowo wspomagana metrologia i diagnostyka * projektowanie systemów * mikrosystemów i makrosystemów elektronicznych * testowanie i diagnostyka elektroniczna * pomiary właściwości szumowych i zakłóceń * spektroskopia impedancyjna * telemetria i telediagnostyka internetowa * katedra redaguje Metrology and Measurement Systems * kwartalnik PAN znajdujący się na liście JCR

  • Zespół Fizyki Ciała Stałego

    Tematyka badawcza Katedry Fizyki Ciała Stałego obejmuje wytwarzanie i badanie materiałów dla energetyki (m.in. nanostruktury, sensory) o innowacyjnych właściwościach fizyko-chemicznych, tj: * kryształy, polikryształy, ceramika, szkło * materiały objętościowe, cienkie warstwy, nanomateriały * materiały metaliczne, półprzewodnikowe, nadprzewodnikowe, izolatory Tematyka badawcza obejmuje również badania symulacyjne i obliczeniowe...

  • Katedra Technologii Chemicznej

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Search results for: AUNP-DECORATED WO3 NANOWIRES

  • Formaldehyde detection with chemical gas sensors based on WO3 nanowires decorated with metal nanoparticles under dark conditions and UV light irradiation

    Publication

    - SENSORS AND ACTUATORS B-CHEMICAL - Year 2020

    We report results of formaldehyde gas (CH2O) detection under dark conditions and UV light irradiation with pristine tungsten trioxide nanowires (WO3 NWs) and metal nanoparticles decorated WO3 NWs gas sensing layers. The resistive layers were deposited by one step aerosol assisted chemical vapor deposition (AACVD) on commercial alumina substrates with 10-pair interdigitated platinum electrodes. The elaborated gas sensors, based...

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  • Fluctuation enhanced gas sensing using UV irradiated Au-nanoparticle-decorated WO3-nanowire films

    Publication
    • M. Trawka
    • J. Smulko
    • L. Hasse
    • C. G. Granqvist
    • R. Ionescu
    • F. E. Annanouch
    • E. Llobet
    • L. B. Kish

    - Year 2014

    WO3 nanowires (WO3-NWs) decorated with gold nanoparticles (AuNPs) were utilized in resistive gas sensor devices to detect ethanol by use of fluctuation enhanced sensing (FES). The experimental system records both DC resistance and fluctuations of the sensing film. Our data verify that the sensitivity and selectivity of the gas sensor are improved by applying FES when the sensor is stimulated with a combination of UV light and heating....

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  • Low-frequency noise in Au-decorated graphene–Si Schottky barrier diode at selected ambient gases

    Publication
    • J. Smulko
    • K. Drozdowska
    • A. Rehman
    • T. Welearegay
    • L. Österlund
    • S. Rumyantsev
    • G. Cywiński
    • B. Stonio
    • A. Krajewska
    • M. Filipiak
    • P. Sai

    - APPLIED PHYSICS LETTERS - Year 2023

    We report results of the current–voltage characteristics and low-frequency noise in Au nanoparticle (AuNP)-decorated graphene–Si Schottky barrier diodes. Measurements were conducted in ambient air with addition of either of two organic vapors, tetrahydrofuran [(CH2)4O; THF] and chloroform (CHCl3), as also during yellow light illumination (592nm), close to the measured particle plasmon polariton frequency of the Au nanoparticle...

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  • Probability distribution of flicker noise in AuNPdecorated graphene–Si Schottky barrier diode

    Publication

    - Year 2023

    We present results of the probability distribution analysis of flicker noise generated in Au nanoparticle (AuNP) decorated graphene–Si Schottky barrier diodes with and without yellow light illumination (592 nm), close to the localized surface plasmon resonance in the AuNPs (586 nm). The AuNPs occupy imperfections in the single-layer graphene and reduce the flicker noise intensity generated in the graphene layer. The estimated probability...

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  • Efficiency of gas detection algorithms using fluctuation enhanced sensing

    Publication

    - Year 2015

    Efficiency of various gas detection algorithms by applying fluctuation enhanced sensing method was discussed. We have analyzed resistance noise observed in resistive WO3- nanowires gas sensing layers. Power spectral densities of the recorded noise were used as the input data vectors for two algorithms: the principal component analysis (PCA) and the support vector machine (SVM). The data were used to determine gas concentration...

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