Expansion of the response range of photoelectrochemical UV detector using an ITO/Ag-nanowire/quartz UV-visible transparent conductive electrode

Wang, Youqing; Li, Baoping; Ren, Peiling; Liu, Menghan; Gong, Zilin; Zhang, Miaomiao; Zhao, Hao; Zhang, Yanqing; Liu, Jianke

doi:10.1039/d1tc05815k

Cited by 4 publications

(1 citation statement)

References 39 publications

(35 reference statements)

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“…The detector showed good photoelectric conversion ability and considerable switching performance, even under very weak irradiation [ 14 ]. Furthermore, Wang et al prepared a novel PEC device with Ag NWs as conductive electrodes, quartz glass as the substrate, and TiO 2 nanoparticles as photoactive layers, and the response range of the UV detector was extended [ 15 ]. However, all of the above devices are complex to fabricate and have unstable performance.…”

Section: Introductionmentioning

confidence: 99%

Wide Response Range Photoelectrochemical UV Detector Based on Anodized TiO2-Nanotubes@Ti@quartz Structure

Wang,

Zhang,

et al. 2024

Nanomaterials

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Conventional sandwich structure photoelectrochemical UV detectors cannot detect UV light below 300 nm due to UV filtering problems. In this work, we propose to place the electron collector inside the active material, thus avoiding the effect of electrodes on light absorption. We obtained a TiO2-nanotubes@Ti@quartz photoanode structure by precise treatment of a commercial Ti mesh by anodic oxidation. The structure can absorb any light in the near-UV band and has superior stability to other metal electrodes. The final encapsulated photoelectrochemical UV detectors exhibit good switching characteristics with a response time below 100 ms. The mechanism of the oxidation conditions on the photovoltaic performance of the device was investigated by the electrochemical impedance method, and we obtained the optimal synthesis conditions. Response tests under continuous spectroscopy confirm that the response range of the device is extended from 300–400 nm to 240–400 nm. This idea of a built-in collector is an effective way to extend the response range of a photoelectrochemical detector.

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Section: Introductionmentioning

confidence: 99%

Wide Response Range Photoelectrochemical UV Detector Based on Anodized TiO2-Nanotubes@Ti@quartz Structure

Wang,

Zhang,

et al. 2024

Nanomaterials

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Recent advances in nanowire sensor assembly using laminar flow in open space

Mao

2023

TrAC Trends in Analytical Chemistry

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Electrode materials and structures in UV photodetectors

Ouyang,

Zhang

2024

Applied Physics Reviews

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Electrodes can be recognized as the bridges between photodetectors (PDs) and outer measurement circuits. The interfacial electric properties between electrodes and sensitive materials would dominate the separation and collection of photo-induced charge carrier, which are recognized as one of the critical factors influencing the photo-detecting performance. In this paper, the electrode materials used in UV PDs are summarized and categorized according to their components. Then, the effects of electrode configurations (such as the contact types, band structure, and electrode structure) on the photoelectric performances of UV PDs are discussed. Varied kinds of specific electrodes such as transparent electrodes, flexible electrodes, and bio-originated electrodes are described. Finally, the perspective of electrodes in UV PDs is presented, which provides guidance for their future development.

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Expansion of the response range of photoelectrochemical UV detector using an ITO/Ag-nanowire/quartz UV-visible transparent conductive electrode

Abstract: The photoelectrochemical (PEC) UV detector based on the traditional transparent conductive electrode (TCE) has a narrow response range due to the UV filtering effect. Here we prepared an Ag nanowire...

Cited by 4 publications

References 39 publications

Wide Response Range Photoelectrochemical UV Detector Based on Anodized TiO2-Nanotubes@Ti@quartz Structure

Wide Response Range Photoelectrochemical UV Detector Based on Anodized TiO2-Nanotubes@Ti@quartz Structure

Recent advances in nanowire sensor assembly using laminar flow in open space

Electrode materials and structures in UV photodetectors

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