Electrical properties of CuO nanoflakes/Au heterojunction under photo excitation

Mallik, Gyanadeep; Rath, S.

doi:10.1016/j.matpr.2022.04.978

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2023

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“…The Tauc plot expression was used to calculate the optical band gap, as shown in Figure 3. (b), 𝛼ℎ𝜐 = 𝐴(ℎ𝑣 − 𝐸 𝑔 ) 𝛾 Where A is constants, α is the absorption coefficient, 𝑣 is the frequency of photon and hv is photon energy [7]. The factor 𝛾 is equal to 1/2 for the direct band and 2 for the indirect band and depends on the kind of electron transitions that occur between the bands.…”

Section: Optical Characterizationmentioning

confidence: 99%

CVD Grown Nanodimensional Semiconductor Heterostructure: Structural and Optical Properties

Kumari,

Rath

2023

J. Phys.: Conf. Ser.

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The CdSe/CdS heterostructure nanolayer thin films grown by chemical vapour deposition (CVD) technique are discussed. The morphological characterization of heterostructure is examined using scanning electron microscopy (SEM) micrographs which demonstrate the polycrystalline structure is well-developed. The structural characterization of the heterostructure using X-ray diffraction (XRD) studies reveals that the sample’s structure is hexagonal. The optical characterization has been performed using a UV-Visible spectrophotometer that might illustrate the formation of the CdSe/CdS heterostructure interface. These studies could help to design new optoelectronic devices with a high level of efficiency.

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Section: Optical Characterizationmentioning

confidence: 99%