Absorption Spectra of Transition Ions in CdS Crystals

Pappalardo, R.; Dietz, R. E.

doi:10.1103/physrev.123.1188

Cited by 184 publications

(56 citation statements)

References 26 publications

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“…I n the neutral charge state the nickel has the configuration Ni2+(da) and causes the appearance of near infrared absorption and emission bands which are well understood in the frame of crystal field theory. These so-called crystal field spectra connected with an internal transition within the 3ds configuration of Ni2+ have been found for example in ZnS [l, 21, ZnSe [3], CdS [4,5], and CdSe [6]. I n addition to Ni2+(d8) there have been found also optical transition in absorption and emission due to Nil+(dg) in ZnS [7, 81 and ZnSe [8,9].…”

Section: Introductionmentioning

confidence: 94%

The Ni Donor and Acceptor Levels in CdSe

Baranowski

1984

Physica Status Solidi (b)

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The charge transfer spectra of Ni impurity in CdSe are reported and discussed. It is shown that they consist of the photoionization spectrum of the donor Niz+ (d8) and the spectrum connected with the transition of an electron from the valence band to the Ni in result of which the Nil+(dg) charge state is created. An analysis of the charge transfer spectra allows to determine the N2+(d8) donor level a t 0.32 eV and the Nil+(dg) acceptor level a t 1.81 eV above the top of the valence band. These results and other transition metal levels established previously in CdSe allows to discuss chemical trends in their position within the gap.Chargetransfer-Spektren von Ni-Storstellen in CdSe werden untersucht und diskutiert. Es wird gezeigt,' da8 sie aus dem Photoionisationsspektrum des Donators NiZ+(ds) und dem Spektrum bestehen, das mit dem Ubergang eines Elektrons vom Valenzband zum Ni verkniipft ist, wobei der Nil+( d9)-Ladungszustand gebildet wird. Aus der Analyse der Ladungstransfer-Spektren wird das Ni2+(d8)-Donatorniveau zu 0.32 eV und das Nil+(dg)-Akzeptorniveau zu 1,81 eV oberhalb der Valenzbandkante bestimmt. Diese Ergebnisse und fruher erhaltene andere Ubergangsmetallniveaus in CdSe erlauben chemische Trends ihrer Lage in der Bandliicke zu diskutieren.

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Section: Introductionmentioning

confidence: 94%

The Ni Donor and Acceptor Levels in CdSe

Baranowski

1984

Physica Status Solidi (b)

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“…Introduction. -The spectra of nonmetallic ions as a class have not been systematically studied in salt melts, but the spectrum of the nitrate ion as a representative of that class has been intensively studied (18,121,125,129,135,136,137,145).…”

Section: Nitrate Lonmentioning

confidence: 99%

“…Sakai (125) reported wavelength values for absorption edges of RbN0 3 , CsN0 3 , and NH 4 N0 3 from room temperature to above their melting points. Sundheim and Greenberg.…”

Section: Nitrate Lonmentioning

confidence: 99%

Review of Electronic Absorption Spectra of Molten Salts

Smith¹

1963

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“…Tetrahedrally bonded Cu(II) would be expected to have a stronger d-d band at ≈ 6000 cm -1 [18] The Cu(I) is probably located in a tetrahedral site. Tetrahedral is the preferred coordination of Cu(I) [19] and no authenticated octahedrally coordinated Cu(I) complexes are known.…”

Section: The 3700 To 2700 CM -1 Spectral Regionmentioning

confidence: 99%