Band‐Gap Control of Zinc Sulfide: Towards an Efficient Visible‐Light‐Sensitive Photocatalyst

Fran Kurnia, Judy N. Hart

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The electronic properties of transition‐metal‐doped zinc sulfide (ZnS) have been investigated by using first‐principles calculations. Transition‐metal doping can allow electronic transitions at energies corresponding to visible‐light wavelengths, thus potentially resulting in increased photocatalytic efficiency under sunlight. In particular, our calculations show that transition‐metal atoms that produce little lattice strain, such as Co, Ni, Mn, and Fe, can be readily incorporated in ZnS. Due to their low formation energies and appropriate band energies, we predict that Ni‐ and Co‐doped ZnS will be promising materials for photocatalytic hydrogen production.
Original languageEnglish
Pages (from-to)2397-2402
Number of pages6
JournalChemPhysChem
Volume16
Issue number11
Early online date16 Jun 2015
DOIs
Publication statusPublished - 03 Aug 2015

Fingerprint

zinc sulfides
Photocatalysts
Energy gap
hydrogen production
energy of formation
sunlight
Hydrogen production
electronics
Electronic properties
Band structure
energy bands
Doping (additives)
Wavelength
Atoms
wavelengths
atoms
zinc sulfide
energy

Cite this

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Band‐Gap Control of Zinc Sulfide: Towards an Efficient Visible‐Light‐Sensitive Photocatalyst. / Kurnia, Fran; Hart, Judy N.

In: ChemPhysChem, Vol. 16, No. 11, 03.08.2015, p. 2397-2402.

Research output: Contribution to journalArticle

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N2 - The electronic properties of transition‐metal‐doped zinc sulfide (ZnS) have been investigated by using first‐principles calculations. Transition‐metal doping can allow electronic transitions at energies corresponding to visible‐light wavelengths, thus potentially resulting in increased photocatalytic efficiency under sunlight. In particular, our calculations show that transition‐metal atoms that produce little lattice strain, such as Co, Ni, Mn, and Fe, can be readily incorporated in ZnS. Due to their low formation energies and appropriate band energies, we predict that Ni‐ and Co‐doped ZnS will be promising materials for photocatalytic hydrogen production.

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