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

doi:10.1109/PVSC40753.2019.8981164

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 proceeding › Conference contribution

1 Citation (Scopus)

Abstract

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 language	English
Title of host publication	2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	344-347
Number of pages	4
ISBN (Electronic)	9781728104942
DOIs	https://doi.org/10.1109/PVSC40753.2019.8981164
Publication status	Published - Jun 2019
Event	46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States Duration: Jun 16 2019 → Jun 21 2019

Publication series

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

Conference

Conference	46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/Territory	United States
City	Chicago
Period	6/16/19 → 6/21/19

Keywords

luminescence
nanoparticles
photovoltaic cells
solar energy

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/PVSC40753.2019.8981164

Cite this

Al-Arafati, S., Kyaw, H. H., Tay Zar Myint, M., Al-Abri, M., & Abou-Zied, O. K. (2019). Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells. In 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019 (pp. 344-347). Article 8981164 (Conference Record of the IEEE Photovoltaic Specialists Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC40753.2019.8981164

Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells. / Al-Arafati, Salim; Kyaw, Htet H.; Tay Zar Myint, Myo et al.
2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 344-347 8981164 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Al-Arafati, S, Kyaw, HH , Tay Zar Myint, M , Al-Abri, M & Abou-Zied, OK 2019, Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells. in 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019., 8981164, Conference Record of the IEEE Photovoltaic Specialists Conference, Institute of Electrical and Electronics Engineers Inc., pp. 344-347, 46th IEEE Photovoltaic Specialists Conference, PVSC 2019, Chicago, United States, 6/16/19. https://doi.org/10.1109/PVSC40753.2019.8981164

Al-Arafati S, Kyaw HH , Tay Zar Myint M , Al-Abri M , Abou-Zied OK. Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells. In 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 344-347. 8981164. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC40753.2019.8981164

Al-Arafati, Salim ; Kyaw, Htet H. ; Tay Zar Myint, Myo et al. / Electron Trapping Enhancement in Gold and Silver Modified ZnO Nanocomposites as Photoanodes for Dye-Sensitized Solar Cells. 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 344-347 (Conference Record of the IEEE Photovoltaic Specialists Conference).

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

abstract = "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.",

keywords = "luminescence, nanoparticles, photovoltaic cells, solar energy",

author = "Salim Al-Arafati and Kyaw, {Htet H.} and {Tay Zar Myint}, Myo and Mohammed Al-Abri and Abou-Zied, {Osama K.}",

note = "Funding Information: This work was supported by Sultan through His Majesty{\textquoteright}s Trust Fund for (SR/SCI/CHEM/18/01) and Omantel OT/19/1). Funding Information: This work was supported by Sultan Qaboos University through His Majesty's Trust Fund for Strategic Research (SR/SCI/CHEM/18/01) and Omantel fund (EG/SQU-OT/19/1). Publisher Copyright: {\textcopyright} 2019 IEEE.; 46th IEEE Photovoltaic Specialists Conference, PVSC 2019 ; Conference date: 16-06-2019 Through 21-06-2019",

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AU - Tay Zar Myint, Myo

AU - Al-Abri, Mohammed

AU - Abou-Zied, Osama K.

N1 - Funding Information: This work was supported by Sultan through His Majesty’s Trust Fund for (SR/SCI/CHEM/18/01) and Omantel OT/19/1). Funding Information: This work was supported by Sultan Qaboos University through His Majesty's Trust Fund for Strategic Research (SR/SCI/CHEM/18/01) and Omantel fund (EG/SQU-OT/19/1). Publisher Copyright: © 2019 IEEE.

PY - 2019/6

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N2 - 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.

AB - 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.

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KW - nanoparticles

KW - photovoltaic cells

KW - solar energy

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

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