Penentuan aras jalur tenaga kompleks tungsten nitrosilditiolena

Translated title of the contribution: Determination of band energy levels for tungsten nitrosyldithiolene

Mark Lee Wun Fui, Ng Kim Hang, Lorna Effery Minggu, Ali Umar Akrajas, Mohammad Kassim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The chemical and physical properties of tungsten nitrosyldithiolene complexes with a general formulae of [WTp*(NO) (L)] where Tp* = tris(3,5-dimethylpyrazolyl)hidroborate and L = toluene-3,4-dithiolate (L 1), 1,2-benzenedithiolate (L 2), 3,6-dichloro-1,2- benzenedithiolate (L 3), have been studied for application as a photosensitizer in an anode for photoelectrochemical cell. These complexes were synthesized and characterised by infrared (IR), ultraviolet-visible (UV-Vis) spectroscopy and CHNS micro elemental analysis. Cyclic voltammetry (CV) was used to determine their redox potentials and their band energies were calculated from the potentials obtained. All three complexes showed energy band gaps in the range of 1.59-1.63 eV. The calculated band gaps from CV analyses were comparable with the estimated values obtained from the UV-Vis absorption data. Based on the postulated band diagram, these complexes may be a potential photosensitizer to be used in the photoeletrodes for photoelectrochemical cells.

Original languageUndefined/Unknown
Pages (from-to)439-444
Number of pages6
JournalSains Malaysiana
Volume41
Issue number4
Publication statusPublished - Apr 2012

Fingerprint

Photoelectrochemical cells
Tungsten
Photosensitizing Agents
Band structure
Electron energy levels
Cyclic voltammetry
Energy gap
Ultraviolet visible spectroscopy
Toluene
Chemical properties
Anodes
Physical properties
Infrared radiation
Chemical analysis
Oxidation-Reduction

Keywords

  • Photoelectrochemical cell
  • Photosensitizer
  • Tungsten nitrosyldithiolene

ASJC Scopus subject areas

  • General

Cite this

Penentuan aras jalur tenaga kompleks tungsten nitrosilditiolena. / Fui, Mark Lee Wun; Hang, Ng Kim; Effery Minggu, Lorna; Akrajas, Ali Umar; Kassim, Mohammad.

In: Sains Malaysiana, Vol. 41, No. 4, 04.2012, p. 439-444.

Research output: Contribution to journalArticle

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