Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells

Salim Al-Arafati, Htet H. Kyaw, Myo Tay Zar Myint, Mohammed Al-Abri, Osama K. Abou-Zied*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Decorated ZnO nanoparticles were prepared with different ratios of gold and silver nanometals. The new nanocomposites minimized the charge recombination process by forming a Schottky barrier at the interface between ZnO and the noble metal(s) that acted as an electron sink. This phenomenon was obvious for ZnO/Au75:Ag25 and ZnO/Au100:Ag0 in which the electron-phonon interaction in the Au nanoparticles was slowed down and measured to be 3.87 ps for the former and 6.01 ps for the latter, compared to 2.50 ps for pristine Au nanoparticles. These materials should be useful as potential photoanodes for dye-sensitized solar cells, compared to unmodified ZnO.

Original languageEnglish
Title of host publication2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781728104942
Publication statusPublished - Jun 2019
Externally publishedYes
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: Jun 16 2019Jun 21 2019

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/TerritoryUnited States


  • luminescence
  • nanoparticles
  • photovoltaic cells
  • solar energy

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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