Plasmon-Enhanced Self-Powered UV Photodetectors Assembled by Incorporating Ag@SiO2 Core-Shell Nanoparticles into TiO2 Nanocube Photoanodes

Yuewu Huang; Qingjiang Yu; Jinzhong Wang; Jianan Wang; Cuiling Yu; James Taban Abdalla; Zhi Zeng; Shujie Jiao; Dongbo Wang; Shiyong Gao

doi:10.1021/acssuschemeng.7b02697

Plasmon-Enhanced Self-Powered UV Photodetectors Assembled by Incorporating Ag@SiO₂ Core-Shell Nanoparticles into TiO₂ Nanocube Photoanodes

Yuewu Huang
, Qingjiang Yu^*
, Jinzhong Wang
, Jianan Wang
, Cuiling Yu
, James Taban Abdalla
, Zhi Zeng
, Shujie Jiao
, Dongbo Wang
, Shiyong Gao

^*Corresponding author for this work

School of Computer Science and Technology
Harbin Normal University
Harbin Institute of Technology

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

37 Scopus citations

Abstract

A novel photoelectrochemical self-powered ultraviolet photodetector (UVPD) has been assembled employing Ag@SiO₂ core-shell nanoparticles (NPs) incorporated TiO₂ nanocubes (NCs) as the photoanode. The incorporation of the plasmonic core-shell NPs can boost the photocurrent of the self-powered UVPD. Finite difference time domain (FDTD) and transient absorption spectroscopy (TAS) were employed to understand plasmonic enhancement processes. By optimizing the incorporated ratio of Ag@SiO₂ NPs, the photocurrent of UVPD with 2 wt % Ag@SiO₂ NPs reaches the maximum value in view of the enhanced light harvesting and effective inhibition of charge recombination. More importantly, the UVPD with 2 wt % Ag@SiO₂ NPs achieves a high on/off ratio of 8212 and a remarkable responsivity of 0.151 A W^-1, combined with a rapid response time, prominent spectral selectivity, and photosensitivity linearity response.

Original language	English
Pages (from-to)	438-446
Number of pages	9
Journal	ACS Sustainable Chemistry and Engineering
Volume	6
Issue number	1
DOIs	https://doi.org/10.1021/acssuschemeng.7b02697
State	Published - 2 Jan 2018
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Core-shell nanoparticles
Localized surface plasmon resonance
TiO nanocube
Transient absorption spectroscopy
UV photodetector

Access to Document

10.1021/acssuschemeng.7b02697

Cite this

@article{2c9a1be737914a808c6db0c28c3f5e91,

title = "Plasmon-Enhanced Self-Powered UV Photodetectors Assembled by Incorporating Ag@SiO2 Core-Shell Nanoparticles into TiO2 Nanocube Photoanodes",

abstract = "A novel photoelectrochemical self-powered ultraviolet photodetector (UVPD) has been assembled employing Ag@SiO2 core-shell nanoparticles (NPs) incorporated TiO2 nanocubes (NCs) as the photoanode. The incorporation of the plasmonic core-shell NPs can boost the photocurrent of the self-powered UVPD. Finite difference time domain (FDTD) and transient absorption spectroscopy (TAS) were employed to understand plasmonic enhancement processes. By optimizing the incorporated ratio of Ag@SiO2 NPs, the photocurrent of UVPD with 2 wt \% Ag@SiO2 NPs reaches the maximum value in view of the enhanced light harvesting and effective inhibition of charge recombination. More importantly, the UVPD with 2 wt \% Ag@SiO2 NPs achieves a high on/off ratio of 8212 and a remarkable responsivity of 0.151 A W-1, combined with a rapid response time, prominent spectral selectivity, and photosensitivity linearity response.",

keywords = "Core-shell nanoparticles, Localized surface plasmon resonance, TiO nanocube, Transient absorption spectroscopy, UV photodetector",

author = "Yuewu Huang and Qingjiang Yu and Jinzhong Wang and Jianan Wang and Cuiling Yu and Abdalla, \{James Taban\} and Zhi Zeng and Shujie Jiao and Dongbo Wang and Shiyong Gao",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2018",

month = jan,

day = "2",

doi = "10.1021/acssuschemeng.7b02697",

language = "英语",

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TY - JOUR

T1 - Plasmon-Enhanced Self-Powered UV Photodetectors Assembled by Incorporating Ag@SiO2 Core-Shell Nanoparticles into TiO2 Nanocube Photoanodes

AU - Huang, Yuewu

AU - Yu, Qingjiang

AU - Wang, Jinzhong

AU - Wang, Jianan

AU - Yu, Cuiling

AU - Abdalla, James Taban

AU - Zeng, Zhi

AU - Jiao, Shujie

AU - Wang, Dongbo

AU - Gao, Shiyong

PY - 2018/1/2

Y1 - 2018/1/2

N2 - A novel photoelectrochemical self-powered ultraviolet photodetector (UVPD) has been assembled employing Ag@SiO2 core-shell nanoparticles (NPs) incorporated TiO2 nanocubes (NCs) as the photoanode. The incorporation of the plasmonic core-shell NPs can boost the photocurrent of the self-powered UVPD. Finite difference time domain (FDTD) and transient absorption spectroscopy (TAS) were employed to understand plasmonic enhancement processes. By optimizing the incorporated ratio of Ag@SiO2 NPs, the photocurrent of UVPD with 2 wt % Ag@SiO2 NPs reaches the maximum value in view of the enhanced light harvesting and effective inhibition of charge recombination. More importantly, the UVPD with 2 wt % Ag@SiO2 NPs achieves a high on/off ratio of 8212 and a remarkable responsivity of 0.151 A W-1, combined with a rapid response time, prominent spectral selectivity, and photosensitivity linearity response.

AB - A novel photoelectrochemical self-powered ultraviolet photodetector (UVPD) has been assembled employing Ag@SiO2 core-shell nanoparticles (NPs) incorporated TiO2 nanocubes (NCs) as the photoanode. The incorporation of the plasmonic core-shell NPs can boost the photocurrent of the self-powered UVPD. Finite difference time domain (FDTD) and transient absorption spectroscopy (TAS) were employed to understand plasmonic enhancement processes. By optimizing the incorporated ratio of Ag@SiO2 NPs, the photocurrent of UVPD with 2 wt % Ag@SiO2 NPs reaches the maximum value in view of the enhanced light harvesting and effective inhibition of charge recombination. More importantly, the UVPD with 2 wt % Ag@SiO2 NPs achieves a high on/off ratio of 8212 and a remarkable responsivity of 0.151 A W-1, combined with a rapid response time, prominent spectral selectivity, and photosensitivity linearity response.

KW - Core-shell nanoparticles

KW - Localized surface plasmon resonance

KW - TiO nanocube

KW - Transient absorption spectroscopy

KW - UV photodetector

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DO - 10.1021/acssuschemeng.7b02697

M3 - 文章

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