Ultraviolet photoelectron spectra of rubidium halides

Inouye, C. S.; Pong, W.

doi:10.1103/physrevb.15.2265

Cited by 29 publications

(9 citation statements)

References 29 publications

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“…The experiment confirmed the expectations (Fig. 4) -the two maxima of CRL at 5.4 and 6.1 eV are within the interval 5.2 to 6.8 eV where CRL could be anticipated from the band structure data of 1nouye and Pong [27].…”

Section: Rubidium Halides and Some Other Crystalssupporting

confidence: 87%

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Luminescence Due to Radiative Transitions between Valence Band and Upper Core Band in Ionic Crystals (Crossluminescence)

Jansons

Krumins

Rachko

et al. 1987

Physica Status Solidi (b)

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I n some wide band gap halides of heavy alkali and alkaline-earth metals (BaF2, CsCI, R b F etc.) the energy separation between the valence band involving mainly the halogen electronic states and the upper cation core band is smaller than the band gap. Under the excitation generating holes in the core band radiative electronic transitions from the valence band to the core band take place giving rise to a specific kind of intrinsic emission which is proposed to call crossluminescence. I t s decay time is about 1 ns and the thermal quenching starts a t temperatures well above room temperature. The width of the emission spectrum practically coincides with the width of the valence band deduced from ultraviolet photoelectron spectroscopy and the shape of the spectrum depicts the electronic structure of the valence band.I n einigen Alkali-und Erd-Alkalihalogeniden (BaF,, CsCI, R b P u. a.) ist die Energiedifferenz zwischen dem Valenzband und dem hochsten Atomrumpfband kleiner als die Energielucke. Unter hochenergetischer Strahlungsanregung, die Locher im Atomrumpfband generiert, treten stra hlende elektronische UbergLnge von Valenzband zum -4tomrumpfband auf, eine spezifische Eigenlumineszenz, die ,,Crosslumineszenz" genannt wird. Die Abklingzeit dieser Lumineszenz ist etwa 1 ns und die thermische Tilgung beginnt iiber Zimmertemperatur. Die Spektrumsbreite korreliert mit der Valenzbandbreite, wie durch Photoelektronenspektroskopie festgestellt wird, und die Struktur des Spektrums charakterisiert die Elektronenstruktur dieses Valenzbandes.

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Section: Rubidium Halides and Some Other Crystalssupporting

confidence: 87%

“…In RbCl the eventual CRL transitions could be in the 6.9 to 8.5 eV region [27] which is significantly overlapped by the intrinsic absorption (the first exciton peak is a t 7.4 eV [24]). Because of this the CRI, in RbCl is by more than three orders of magnitude weaker than in RbP.…”

Section: Rubidium Halides and Some Other Crystalsmentioning

confidence: 99%

Luminescence Due to Radiative Transitions between Valence Band and Upper Core Band in Ionic Crystals (Crossluminescence)

Jansons

Krumins

Rachko

et al. 1987

Physica Status Solidi (b)

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“…The DOS curves of KCl crystal in B2, B3 and T1 structures show similar character to that of B1 structure. In addition, KCl have larger uppervalence-band width, which turned out to be 2.42 eV for the B1 structure, in excellent agreement with the experimental value of 2.3 eV [36] and the theoretical value of 2.75 eV [37]. For B2, B3 and T1 structures, uppervalence-band width were determined to be 3.03, 1.82 and 3.94 eV, respectively, suggesting that KCl Crystal is a wide band gap insulator.…”

Section: Density Of States (Dos) Analysissupporting

confidence: 85%

First principles study of structural, electronic and optical properties of KCl crystal

Chen

Xiao

2006

Chemical Physics

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“…As is well established in alkali halides [9], when a hole is generated in the highest occupied band made from halogen states, it becomes self-trapped by forming an X 2  molecular ion (X denotes halogen atom) during its lifetime. The trap depth E, i.e., lattice relaxation energy around a hole, has been estimated by Inouye and Pong [10], by leaving the relaxation of X 2  -type out of consideration. They have obtained E = 1.9 eV for RbF as an example.…”

Section: Discussionmentioning

confidence: 99%

Is Auger-free luminescence present in CeF3?

Itoh

Iri

Kitaura

2009

Journal of Luminescence

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It is well known that Auger-free luminescence (AFL) is observable when the condition E g  E VC is satisfied, where E g is the band-gap energy between the lowest unoccupied band and the highest occupied band and E VC the energy difference between the top of the highest occupied band and the top of the next lower occupied band. From measurements of reflection and x-ray photoelectron spectra, CeF 3 is demonstrated to really satisfy this condition. No evidence for AFL is found, nevertheless. The absence of AFL in CeF 3 is related to a characteristic nature of its highest and next lower occupied bands, which are quite different from those of previously studied AFL-materials.

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Ultraviolet photoelectron spectra of rubidium halides

Cited by 29 publications

References 29 publications

Luminescence Due to Radiative Transitions between Valence Band and Upper Core Band in Ionic Crystals (Crossluminescence)

Luminescence Due to Radiative Transitions between Valence Band and Upper Core Band in Ionic Crystals (Crossluminescence)

First principles study of structural, electronic and optical properties of KCl crystal

Is Auger-free luminescence present in CeF3?

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