A review on visible-light induced photoelectrochemical sensors based on CdS nanoparticles

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)62_Review of books or of software (or similar publications/items)peer-review

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Author(s)

  • Izwaharyanie Ibrahim
  • Hong Ngee Lim
  • Ruzniza Mohd Zawawi
  • Asilah Ahmad Tajudin
  • Hang Guo
  • Nay Ming Huang

Detail(s)

Original languageEnglish
Pages (from-to)4551-4568
Journal / PublicationJournal of Materials Chemistry B
Volume6
Issue number28
Online published4 Jul 2018
Publication statusPublished - 28 Jul 2018
Externally publishedYes

Abstract

Discovering the distinctive photophysical properties of semiconductor nanoparticles (NPs) has made these a popular subject in recent advances in nanotechnology-related analytical methods. Semiconductor NPs are well-known materials that have been widely used in photovoltaic devices such as optical sensors and bioimaging, and dye-sensitized solar cells (DSSCs), as well as for light-emitting diodes (LEDs). The use of a narrow-bandgap semiconductor such as CdS NPs in the photoelectrochemical (PEC) detection of chemicals and biological molecules plays a key role as a photosensitizer and promotes some specific advantages in light-harvesting media. Their size-controlled optical and electrical properties make NPs fascinating and promising materials for a variety of nanoscale photovoltaic devices. Moreover, charge injection from the narrow bandgap to the adjacent material leads to efficient charge separation and prolongs the electron lifetime by the elimination of the charge carrier recombination probability. In this regard, a single photon enables the production of multiple photogenerated charge carriers in CdS NPs, which subsequently boosts the effectiveness of the photovoltaic devices. In particular, the present review article highlights the recent emerging PEC detection methods based on CdS NPs, specifically related to the direct and indirect interactions of NPs with target analytes. The current opportunities and challenges in achieving real-world applications of CdS-based PEC sensing are also presented.

Citation Format(s)

A review on visible-light induced photoelectrochemical sensors based on CdS nanoparticles. / Ibrahim, Izwaharyanie; Lim, Hong Ngee; Mohd Zawawi, Ruzniza; Ahmad Tajudin, Asilah; Ng, Yun Hau; Guo, Hang; Huang, Nay Ming.

In: Journal of Materials Chemistry B, Vol. 6, No. 28, 28.07.2018, p. 4551-4568.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)62_Review of books or of software (or similar publications/items)peer-review