The Mössbauer effect in tin(II) compounds. Part 14. Data for some chalcogenide halides

Probes of Structural and Electronic Environments of Phosphor Activators: Mössbauer and Raman Spectroscopy

“…Table presents the various effects that the crystal lattice parameters have upon both the intensity (energy efficiency) and the energy content (wavelength) of the emission bands . We and others have explained the significance of the outer n s 2 electrons of low-valence p block elements to the population of the conduction bands and their role in luminescence. , Mössbauer spectroscopic studies of Sn(II) phosphors should yield more information on the role of the Sn 5s 2 electrons in a similar way to early studies on colored Sn(II) oxides and halides. − …”

“…The Raman spectra collected in this way indicate that the films transform from the amorphous phase into the crystallized phase at 600 °C. The Raman spectrum of Gd 2 O 3 in the amorphous phase is manifested by two weak broad bands around 90 and 350 cm -1 , 238,239 whereas the Raman spectrum of C-type Gd 2 O 3 exhibits six bands at 93,117,313,359,442, and 565 cm -1 . 239 Lu 2 O 3 .…”

“…102,103 Mo ¨ssbauer spectroscopic studies of Sn(II) phosphors should yield more information on the role of the Sn 5s 2 electrons in a similar way to early studies on colored Sn(II) oxides and halides. [104][105][106][107][108][109][110][111][112][113][114][115][116][117][118][119][120][121][122] 2.6. Antimony…”

Electronic structures of SnS and SnS2

“…The 119 Sn Mössbauer spectrum of SnS 2 is formed by a single peak and the reported experimental values of the isomer shift δ are of about 1.1 mm s −1 with weak temperature dependency . The spectrum of SnS is formed by an asymmetrical doublet originating from a significant quadrupole effect . The isomer shift is of about 3.4 mm s −1 at nitrogen temperature (NT) and decreases to 3.3 mm s −1 at RT while the quadrupole splitting decreases from about 0.9 mm s −1 at NT to 0.8 mm s −1 at RT.…”

Charge-transfer nature in luminescence of YNbO4:Bi blue phosphor

“…3 Although there are many fundamental studies on the luminescence of bismuth compounds, there are very few studies on the application of the bismuth compounds to the FED application. 4 -6 The electronic configuration of activator Bi is composed of the ground state 6s 2 and the first excited state 6s6 p. 7 The main emission band appears 3 P 1 → 1 S 0 which is spin forbidden but has nevertheless a reasonably high oscillator strength ( P A Ϸ0.1). 8 When phosphors are doped with Bi as an activator, the position of main band varies depending on the nature of a host lattice.…”