Band gap varied cuprous oxide (Cu2O) thin films as a tool for glucose sensing

Pagare, Pavan K.; Torane, A. P.

doi:10.1007/s00604-016-1949-6

Cited by 40 publications

(15 citation statements)

References 42 publications

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“…It directed Bi 2 O 3 thin films towards solar cell application. The optical band gap (Eg) of optimized Bi 2 O 3 thin films using absorption spectra is determine form the equation

false(α h ν false) = A {(Eg - normalh ν)}^{normaln}

where A is constant, hν is incident photon energy, α is coefficient of absorption, and n is electronic transition causing absorption.…”

Section: Resultsmentioning

confidence: 99%

“…The optical band gap (Eg) of optimized Bi 2 O 3 thin films using absorption spectra is determine form the equation. [23][24][25] ( h ) = A(Eg − h ) n (2) where A is constant, h is incident photon energy, is coefficient of absorption, and n is electronic transition causing absorption. The recorded data were to calculate the band gap energy of the Bi 2 O 3 films.…”

Section: Optical Studymentioning

confidence: 99%

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Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Jadhav¹,

Pagare²,

Inamdar³

et al. 2019

Macromolecular Symposia

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The Bi2O3 thin films were prepared onto glass substrates by spray pyrolysis method. The Bi2O3 thin films optimized at 320 °C spray pyrolysis temperature. The crystal structure, crystallite size, and surface morphology of Bi2O3 thin films were studied by X‐ray diffraction (XRD) and scanning electron microscopy (SEM) techniques, respectively. The X‐ray diffraction pattern of Bi2O3 thin films show polycrystalline in nature. The SEM images show porous morphology of Bi2O3 thin films. The optical absorption spectra of films were examined in order to study their band gap energy. The optical study shows a direct band gap of 2.90 eV for Bi2O3 films.

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“…It directed Bi 2 O 3 thin films towards solar cell application. The optical band gap (Eg) of optimized Bi 2 O 3 thin films using absorption spectra is determine form the equation

false(α h ν false) = A {(Eg - normalh ν)}^{normaln}

where A is constant, hν is incident photon energy, α is coefficient of absorption, and n is electronic transition causing absorption.…”

Section: Resultsmentioning

confidence: 99%

Section: Optical Studymentioning

confidence: 99%

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Jadhav¹,

Pagare²,

Inamdar³

et al. 2019

Macromolecular Symposia

Self Cite

View full text Add to dashboard Cite

show abstract

“…is an additional confirmation of carrier types investigated by using both the photocurrent and linear sweep voltammetry measurement. e acceptor and donor densities can be calculated employing the Mott-Schottky equations [16]:…”

Section: Resultsmentioning

confidence: 99%

Stable Cu₂O Photoelectrodes by Reactive Ion Beam Sputter Deposition

Chen

Ejigu

Chao

2018

Advances in Materials Science and Engineering

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Cu2O has been deposited on quartz substrates by reactive ion beam sputter deposition. Experimental results show that by controlling argon/oxygen flow rates, both n-type and p-type Cu2O samples can be achieved. The bandgap of n-type and p-type Cu2O were found to be 2.3 and 2.5 eV, respectively. The variable temperature photoluminescence study shows that the n-type conductivity is due to the presence of oxygen vacancy defects. Both samples show stable photocurrent response that photocurrent change of both samples after 1,000 seconds of operation is less than 5%. Carrier densities were found to be 1.90 × 1018 and 2.24 × 1016 cm−3 for n-type and p-type Cu2O, respectively. Fermi energies have been calculated, and simplified band structures are constructed. Our results show that Cu2O is a plausible candidate for both photoanodic and photocathodic electrode materials in photoelectrochemical application.

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“…After the synthesis, the samples were rinsed with deionized (DI) water and acetone, and then dried in air. A Cu 2 O sheet layer was electrodeposited on the ZnO NWs/ITO/glass substrate by a three‐electrode system . The working electrode, counter electrode, reference electrode were the ZnO NWs/ITO/glass, a Pt stick, and Ag/AgCl, respectively.…”

Section: Methodsmentioning

confidence: 99%

UV and Visible Light Induced Photocatalytic Degradation on p–n Cu₂O/ZnO Nanowires Decorated with Au–Pd Alloy Nanoparticles

Hsu

Chuo

Hsu

et al. 2019

Adv Materials Inter

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Chemical solutions are applied to synthesize Au–Pd alloy nanoparticles (NPs) and ZnO/Cu2O core–shell nanowires (NWs) on ITO/glass substrates by the photochemical, electrochemistry, and hydrothermal methods. The Cu2O cubic structures and ZnO hexagonal wurtzite structures are verified as being polycrystalline and single crystalline, respectively, by X‐ray diffraction and high‐resolution transmission electron microscopy (HR‐TEM). The p‐Cu2O/n‐ZnO NWs samples exhibit rectification properties that confirm the p–n heterojunction interface. The diameter range of the Au–Pd alloy NPs is around 2–15 nm and the Au/Pd ratio is 27:28, according to HR‐TEM and X‐ray photoelectron spectroscopy. The p‐Cu2O/n‐ZnO core–shell NWs feature higher UV photocatalytic degradation of methylene blue than do the ZnO NWs. Deposited Au, Pd, Au–Pd alloy NPs on the p‐Cu2O/n‐ZnO core–shell NWs improve the photocatalytic degradation efficiency under UV and blue light. The Au–Pd alloy NPs/p‐Cu2O/n‐ZnO core–shell NWs offer the best photocatalytic properties under UV‐ and blue‐light‐emitting diode (LED) illumination.

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Band gap varied cuprous oxide (Cu2O) thin films as a tool for glucose sensing

Cited by 40 publications

References 42 publications

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Stable Cu₂O Photoelectrodes by Reactive Ion Beam Sputter Deposition

UV and Visible Light Induced Photocatalytic Degradation on p–n Cu₂O/ZnO Nanowires Decorated with Au–Pd Alloy Nanoparticles

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Band gap varied cuprous oxide (Cu2O) thin films as a tool for glucose sensing

Cited by 40 publications

References 42 publications

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Preparation of Bismuth Oxide Thin Films by Spray Pyrolysis Method and Its Characterizations

Stable Cu2O Photoelectrodes by Reactive Ion Beam Sputter Deposition

UV and Visible Light Induced Photocatalytic Degradation on p–n Cu2O/ZnO Nanowires Decorated with Au–Pd Alloy Nanoparticles

Contact Info

Product

Resources

About

Stable Cu₂O Photoelectrodes by Reactive Ion Beam Sputter Deposition

UV and Visible Light Induced Photocatalytic Degradation on p–n Cu₂O/ZnO Nanowires Decorated with Au–Pd Alloy Nanoparticles