The colouration of titanates by transition-metal ions in view of solar energy applications

Blasse, G.; Korte, P.H.M. de; Mackor, A.

doi:10.1016/0022-1902(81)80324-7

Cited by 51 publications

(20 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…37 In fact, a number of divalent first row transition metal titanates absorb in the visible. 34,35,38 The monotonous increase of the onset of the MMCT absorption band for …”

Section: Binuclear Tioco Sites In Mcm-41mentioning

confidence: 99%

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

Han

Frei

2007

Microporous and Mesoporous Materials

View full text Add to dashboard Cite

show abstract

“…37 In fact, a number of divalent first row transition metal titanates absorb in the visible. 34,35,38 The monotonous increase of the onset of the MMCT absorption band for …”

Section: Binuclear Tioco Sites In Mcm-41mentioning

confidence: 99%

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

Han

Frei

2007

Microporous and Mesoporous Materials

View full text Add to dashboard Cite

show abstract

“…Various studies have found that small concentrations of Cr 3+ give rise to an optimal visible light response [10][11][12][13]. Photocurrent measurements [11,14,15] have shown that this is associated with an absorption peak at ß450 nm, attributed to a Cr → Ti charge transfer transition. Subsequent studies on powder samples of Cr 3+ -doped STO have confirmed that photocatalytic activity takes place under visible light [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Effect of cation arrangement on the electronic structures of the perovskite solid solutions <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mrow><mo>(</mo><mi>SrTiO</mi></mrow><mn>3</mn></msub><mo>)</mo><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub><msub><mrow><mo>(</mo

Chen

Umezawa

2014

Phys. Rev. B

View full text Add to dashboard Cite

The electronic structures of [SrTiO 3 ] 1−x [LaCrO 3 ] x perovskite solid solutions are studied using hybrid density functional calculations to investigate their potential photocatalytic activity. The introduction of Cr 3+ into SrTiO 3 not only creates occupied states inside the band gap but can adversely narrow the conduction band. However, if Cr 3+ and Ti 4+ ions are segregated in alternating [001] layers, the conduction band remains highly dispersive. This suggests that the electronic structure can be tuned by controlling the cation arrangement. We predict that [SrTiO 3 ] 0.5 [LaCrO 3 ] 0.5 with alternating TiO 2 and CrO 2 layered along the [001] direction, which has not been experimentally realized yet, will exhibit strong absorption of visible light response and excellent electronic transport properties.

show abstract

“…Since oxide perovskites have a relatively large band gap (∼3 eV), to match their absorption spectra to the solar radiation spectrum they can be doped with 3d-elements, which create so-called color centers. 9 Theoretical studies 10 have shown that the doping of a relative compound, PbTiO 3 , by vacancy-compensated divalent impurities with the d 8 electron configuration (Ni, Pd, Pt at the B site) can reduce the band gap to the levels optimal for effective energy conversion.…”

Section: Introductionmentioning

confidence: 99%

On the nature of change in Ni oxidation state in BaTiO₃–SrTiO₃system

Лебедев

Sluchinskaya

2016

Ferroelectrics

View full text Add to dashboard Cite

XAFS studies of Ni-doped Ba1−xSrxTiO3 solid solution reveal that the Ni oxidation state changes from 4 in SrTiO3 to 2.5 in BaTiO3 when varying x. This change is accompanied by a noticeable change in the interatomic Ni-O distances in the first shell. The first-principles calculations show that nickel creates an impurity band in the forbidden band gap of BaTiO3 and SrTiO3, which explains the appearance of intense absorption of Ni-doped samples in the visible region. The analysis of the electronic structure of doped crystals and calculations of the oxygen vacancy formation energy in them show that different oxidation states of Ni in SrTiO3 and BaTiO3 can be explained by different formation energies of the oxygen vacancies in these compounds.

show abstract

The colouration of titanates by transition-metal ions in view of solar energy applications

Cited by 51 publications

References 20 publications

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

On the nature of change in Ni oxidation state in BaTiO₃–SrTiO₃system

Contact Info

Product

Resources

About

The colouration of titanates by transition-metal ions in view of solar energy applications

Cited by 51 publications

References 20 publications

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

Visible light absorption of binuclear TiOCoII charge-transfer unit assembled in mesoporous silica

On the nature of change in Ni oxidation state in BaTiO3–SrTiO3system

Contact Info

Product

Resources

About

On the nature of change in Ni oxidation state in BaTiO₃–SrTiO₃system