Efficient Electrochemiluminescence devices using Pd Nanoparticle-Anchored TiO2 nanorod electrodes with high catalytic activity

Ju Won Oh; Ashkan Vakilipour Takaloo; Sung Doo Baek; Jae Min Myoung

doi:10.1016/j.apsusc.2022.152864

Efficient Electrochemiluminescence devices using Pd Nanoparticle-Anchored TiO₂ nanorod electrodes with high catalytic activity

Ju Won Oh, Ashkan Vakilipour Takaloo, Sung Doo Baek, Jae Min Myoung

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Electrochemiluminescence devices (ECLDs) have several advantages over organic light-emitting diodes (OLEDs), such as simple structure, low fabrication cost, and manufacturability under air ambience. However, the low light-emission efficiency of ECLDs limits their commercial applications. In this study, a Pd nanoparticle (NP)-anchored TiO₂ nanorod (NR) electrode (PTNE) is used to enhance the light-emission properties of ECLDs. The electrochemical catalytic properties of the Pd NPs are analyzed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) as a function of the Pd NP size. The PTNE-based ECLDs with the optimal size of Pd NPs exhibit significant reduction in the minimum driving voltage for multi-color ECLDs than that for the ECLDs with FTO and bare TiO₂-NR electrodes. This improvement is achieved by maximizing the surface-to-volume ratio of the electrodes and enhancing the electron transfer rate between the Pd NP catalysts and luminophores of the ECL composite solution.

Original language	English
Article number	152864
Journal	Applied Surface Science
Volume	586
DOIs	https://doi.org/10.1016/j.apsusc.2022.152864
Publication status	Published - 2022 Jun 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) ( No. 2019R1A2C1085628 ) and Sung-Doo Baek was supported by the Korea Initiative for fostering the University of Research and Innovation (KIURI) Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) ( No. NRF-2020M3H1A1077207 ).

Publisher Copyright:
© 2022 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/j.apsusc.2022.152864

Cite this

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title = "Efficient Electrochemiluminescence devices using Pd Nanoparticle-Anchored TiO2 nanorod electrodes with high catalytic activity",

abstract = "Electrochemiluminescence devices (ECLDs) have several advantages over organic light-emitting diodes (OLEDs), such as simple structure, low fabrication cost, and manufacturability under air ambience. However, the low light-emission efficiency of ECLDs limits their commercial applications. In this study, a Pd nanoparticle (NP)-anchored TiO2 nanorod (NR) electrode (PTNE) is used to enhance the light-emission properties of ECLDs. The electrochemical catalytic properties of the Pd NPs are analyzed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) as a function of the Pd NP size. The PTNE-based ECLDs with the optimal size of Pd NPs exhibit significant reduction in the minimum driving voltage for multi-color ECLDs than that for the ECLDs with FTO and bare TiO2-NR electrodes. This improvement is achieved by maximizing the surface-to-volume ratio of the electrodes and enhancing the electron transfer rate between the Pd NP catalysts and luminophores of the ECL composite solution.",

author = "Oh, {Ju Won} and {Vakilipour Takaloo}, Ashkan and Baek, {Sung Doo} and Myoung, {Jae Min}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) ( No. 2019R1A2C1085628 ) and Sung-Doo Baek was supported by the Korea Initiative for fostering the University of Research and Innovation (KIURI) Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) ( No. NRF-2020M3H1A1077207 ). Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

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AU - Oh, Ju Won

AU - Vakilipour Takaloo, Ashkan

AU - Baek, Sung Doo

AU - Myoung, Jae Min

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) ( No. 2019R1A2C1085628 ) and Sung-Doo Baek was supported by the Korea Initiative for fostering the University of Research and Innovation (KIURI) Program of the National Research Foundation (NRF) funded by the Korean government (MSIT) ( No. NRF-2020M3H1A1077207 ). Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/6/1

Y1 - 2022/6/1

N2 - Electrochemiluminescence devices (ECLDs) have several advantages over organic light-emitting diodes (OLEDs), such as simple structure, low fabrication cost, and manufacturability under air ambience. However, the low light-emission efficiency of ECLDs limits their commercial applications. In this study, a Pd nanoparticle (NP)-anchored TiO2 nanorod (NR) electrode (PTNE) is used to enhance the light-emission properties of ECLDs. The electrochemical catalytic properties of the Pd NPs are analyzed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) as a function of the Pd NP size. The PTNE-based ECLDs with the optimal size of Pd NPs exhibit significant reduction in the minimum driving voltage for multi-color ECLDs than that for the ECLDs with FTO and bare TiO2-NR electrodes. This improvement is achieved by maximizing the surface-to-volume ratio of the electrodes and enhancing the electron transfer rate between the Pd NP catalysts and luminophores of the ECL composite solution.

AB - Electrochemiluminescence devices (ECLDs) have several advantages over organic light-emitting diodes (OLEDs), such as simple structure, low fabrication cost, and manufacturability under air ambience. However, the low light-emission efficiency of ECLDs limits their commercial applications. In this study, a Pd nanoparticle (NP)-anchored TiO2 nanorod (NR) electrode (PTNE) is used to enhance the light-emission properties of ECLDs. The electrochemical catalytic properties of the Pd NPs are analyzed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) as a function of the Pd NP size. The PTNE-based ECLDs with the optimal size of Pd NPs exhibit significant reduction in the minimum driving voltage for multi-color ECLDs than that for the ECLDs with FTO and bare TiO2-NR electrodes. This improvement is achieved by maximizing the surface-to-volume ratio of the electrodes and enhancing the electron transfer rate between the Pd NP catalysts and luminophores of the ECL composite solution.

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