Studies on Ferromagnetic and Photoluminescence Properties of ITO and Cu-Doped ITO Nanoparticles Synthesized by Solid State Reaction

Babu, S. Harinath; Kaleemulla, S.; Rao, N. Madhusudhana; Krishnamoorthi, C.

doi:10.1007/s11664-016-4795-8

Cited by 12 publications

(3 citation statements)

References 33 publications

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“…The energy difference between this peak and the proposed bandgap is 2.82-2.75 = 0.07 eV, which may be a donor ionization energy. The next peak is at 2.64 eV, and PL near this energy has also been reported in ITO nanoparticles and thin films by two groups [18,46,47]. The lower energy PL, down to 2 eV, is assumed to involve states farther from the band edges.…”

Section: Discussion Of Optical Propertiesmentioning

confidence: 65%

“…As reported by other groups, the PL emission from ITO covers a broad energy range [17,18,[46][47][48][49][50]. Some researchers used lower energy photons for PL excitation and, as a result, they do not see the high energy (∼3.8 eV) emission.…”

Section: Photoluminescence Analysismentioning

confidence: 89%

“…This PL results from transitions of electrons from the conduction band to the deep valence band 0.81 eV below the VBM [27] (figure 9(d)). Harinath Babu et al [46,47] observed a distinct PL peak at 3.76 eV in ITO nanoparticles.…”

Section: Discussion Of Optical Propertiesmentioning

confidence: 99%

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Ellipsometry, transmission, and photoluminescence characterization of Mn-doped ITO thin films deposited by DC magnetron sputtering

Kaveh,

Lawrence,

Bender

et al. 2023

Mater. Res. Express

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Manganese-doped indium tin oxide (ITO) thin films (0–12.8 at% Mn) were deposited by DC magnetron sputtering. The structural, electrical, and optical properties of the films were studied. Optical characterization was emphasized and included ellipsometry, transmission, and photoluminescence (PL) measurements. Features of the energy band structure of ITO and Mn-ITO were extracted from PL spectra and Tauc analyses of absorption data. We concluded that the fundamental bandgap of ITO is ∼2.8 eV. A separate deep valence band, ∼0.8 eV below the valence band maximum, was confirmed to be involved in higher energy optical absorption and emission transitions. Both of these observations were consistent with recent published theoretical studies and spectroscopic measurements (XPS, XES, etc). Mn addition was found to result in a decrease of the transition energies. Additionally, Burstein–Moss shifts were observed.

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Section: Discussion Of Optical Propertiesmentioning

confidence: 65%