The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
Optical absorption of divalent metal tungstates: Correlation between the band-gap energy and the cation ionic radius
Open accessAbstract
We have carried out optical-absorption and reflectance measurements at room temperature in single crystals of AWO 4 tungstates (A=Ba, Ca, Cd, Cu, Pb, Sr, and Zn). From the experimental results their band-gap energy has been determined to be 5.26 eV (BaWO 4 ), 5.08 eV (SrWO 4 ), 4.94 eV (CaWO 4 ), 4.15 eV (CdWO 4 ), 3.9–4.4 eV (ZnWO 4 ), 3.8–4.2 eV (PbWO 4 ), and 2.3 eV (CuWO 4 ). The results are discussed in terms of the electronic structure of the studied tungstates. It has been found that those compounds where only the s electron states of the A 2+ cation hybridize with the O 2p and W 5d states ( e.g. , BaWO 4 ) have larger band-gap energies than those where also p, d, and f states of the A 2+ cation contribute to the top of the valence band and the bottom of the conduction band ( e.g. , PbWO 4 ). The results are of importance in view of the large discrepancies existent in prevoiusly published data.
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Cites
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Electronic band structures of the scheelite materialsCaMoO4,CaWO4,PbMoO4,andPbWO4
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Pressure effects on the structural and electronic properties of ABX4 scintillating crystals
Errandonea, D., & Manjón, F. J. (2008) · Progress in Materials Science · doi:10.1016/j.pmatsci.2008.02.001 · Cited by 366
Self-citationAccurate cell dimensions for ABO4 molybdates and tungstates
Sleight, A. W. (1972) · Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry · doi:10.1107/s0567740872007186 · Cited by 335
Structure and Bonding in SnWO4, PbWO4, and BiVO4: Lone Pairs vs Inert Pairs
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Electronic structure and optical properties of CdMoO4 and CdWO4
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Cited by
Band Edge Electronic Structure of BiVO4: Elucidating the Role of the Bi s and V d Orbitals
Walsh, A., Yan, Y., Huda, M. N., Al-Jassim, M. M., & Wei, S.-H. (2009) · Chemistry of Materials · doi:10.1021/cm802894z · Cited by 734
Ke, J., Adnan Younis, M., Kong, Y., Zhou, H., Liu, J., Lei, L., & Hou, Y. (2018) · Nano-Micro Letters · doi:10.1007/s40820-018-0222-4 · Cited by 258
Metadata
- Authors
- Lacomba-Perales, R., Ruiz-Fuertes, J., Errandonea, D., Martínez-García, D., & Segura, A.
- Venue
- EPL (Europhysics Letters)
- Publisher
- IOP Publishing
- Published
- 2008-07-01
- Volume
- 83
- Issue
- 3
- Pages
- 37002
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W2075770720
- Cited by
- 306
- References
- 11
- FWCI
- 11.79
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Lacomba-Perales, R., Ruiz-Fuertes, J., Errandonea, D., Martínez-García, D., & Segura, A. (2008). Optical absorption of divalent metal tungstates: Correlation between the band-gap energy and the cation ionic radius. EPL (Europhysics Letters). https://doi.org/10.1209/0295-5075/83/37002
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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