Emission spectral characteristics of Cu, Ag, Zn, and Cd neutral atoms in a glow discharge

Zhao, Yuhui; Horlick, Gary

doi:10.1016/j.sab.2006.05.009

Cited by 13 publications

(14 citation statements)

References 10 publications

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“…9b) that testified to its relation with Cu 2+ ions at lattice sites. As it was mentioned, similar Cu-related PL emission (500-530 nm) was observed in other wide bandgap compounds 33,35 and in some cases it was attributed to the intradefect transition in Figure 9. EPR(a) and PL (b) spectra of the Cu-8 samples calcined at 1000 • C (1) and after its annealing at 1100 • C for 20 min followed by quenching (2).…”

Section: Discussionsupporting

confidence: 79%

“…Because the substances, which can be present on the crystallite surface (CuO, Cu 2 O, yttrium cuprate), cannot give such a coloration, it can be assigned to color centers. It is known that the Cu ions have the absorption band in green spectral range 35 and can be responsible for the greenish coloration. Thus, its enhancement testifies to Cu incorporation into the nanocrystals.…”

Section: Discussionmentioning

confidence: 99%

“…35 It was shown that this emission can be excited via light absorption by Cu + ions. In our case, the green emission can be excited both by self-trapped exciton (280-290-nm) and, possibly, by the bound exciton (300-310 nm).…”

Section: Discussionmentioning

confidence: 99%

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Structural and Luminescent Properties of (Y,Cu)-Codoped Zirconia Nanopowders

Korsunska

Baran

Polishchuk

et al. 2015

ECS J. Solid State Sci. Technol.

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The effect of both CuO content (1 and 8 mol%) and calcination temperature (T c = 500-1000 • C) on light emitting and structural properties of ZrO 2 -Y 2 O 3 -CuO nanopowders was studied by photoluminescence (PL), X-ray diffraction (XRD) and Raman scattering methods. The samples, calcinated at T c = 500-700 • C, contain the tetragonal ZrO 2 phase predominantly. The increase of T c results in its transformation to monoclinic one, and the phase transformation happens at higher temperature at higher Cu content. It is shown that the increase of T c from 500 to 800 • C results in the Cu incorporation into nanocrystals from the surface entities. This manifests itself in the shift of XRD and Raman peaks of tetragonal phase. The PL spectra demonstrate the presence of two main PL components peaked at about 540 nm and 630 nm in the most samples. The increase of T c from 500 to 1000 • C results in the non-monotonic variation of total PL intensity as well as in minor changes in PL spectra shape. The evolution of PL intensity is explained by both the increase of a crystallinity degree and the variation of the concentration of non-radiative recombination centres. The transformation of PL spectra shape is ascribed to the appearance of radiative Cu Zr centres.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

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Structural and Luminescent Properties of (Y,Cu)-Codoped Zirconia Nanopowders

Korsunska

Baran

Polishchuk

et al. 2015

ECS J. Solid State Sci. Technol.

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show abstract

“…Zhao and Horlick suggested that the upper levels of these triplet lines, at energies of about 8-9 eV, are populated largely by ionelectron recombination [23]. But these lines have the same emission yields for ZnCu alloys as for ZnAl, which is not the Table 1 Sputter rates of copper and zinc in an argon and neon discharge (anode diameter: case for zinc ionic lines (see below).…”

Section: Zn I Linesmentioning

confidence: 99%

“…Papers relevant to this study are e.g. [6,7,21,23,25,[33][34][35][36][37]. Results for Cu I lines are summarized in Table 5.…”

Section: Cu I Linesmentioning

confidence: 99%