4.7 Article

Monolithic integrated multifunctional photoelectrochemical device for smart ultraviolet management

期刊

MATERIALS TODAY ENERGY
卷 20, 期 -, 页码 -

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2021.100676

关键词

Photoelectrochemical device; Photodetection; Electrochromic; Ultraviolet management; Multifunctional electronics

资金

  1. National Science Foundation of China [61631166004, 51902250]
  2. Fundamental Research Funds for the Cornell University [xzy012019002]
  3. National Postdoctoral Program for Innovative Talents [BX201700185]
  4. Natural Science Basic Research Plan in Shaanxi Province of China [2020JQ035]
  5. Instrument Analysis Center of Xi'an Jiaotong University

向作者/读者索取更多资源

The study introduces a multifunctional photoelectrochemical (PEC) device capable of photodetection, electrochromism, and light-assisted coloration for UV radiation management. The device demonstrates high photoresponsivity, coloration efficiency, and UV blocking, providing a new approach for designing and fabricating smart electronics.
Ultraviolet (UV) radiation is crucial for the survival and evolution of organisms, while multifunctional electronics for smart UV management remain undeveloped. Herein, we design a novel monolithic integrated photoelectrochemical (PEC) device, in which the TiO2 film, meshy Pt layer and viologen solution are used as the photoelectrode, counter electrode, and electrolyte, respectively. The obtained device exhibits three functions, including photodetection, electrochromism, and light-assisted coloration function, which can detect, shield, and trace the UV radiation. Meanwhile, the PEC device possesses excellent properties, including a high photoresponsivity of 20 mA/W, a high coloration efficiency of 236.7 cm(2)/C at a wavelength of 600 nm, 98.5% UV blocking mainly in UV-A range, and an instant lightassisted coloring process. By combining the passive detecting and the active shielding, the PEC device enables the intelligent management of the UV radiation, which also provides a general strategy for designing and fabricating multifunctional smart electronics. (C) 2021 Elsevier Ltd. All rights reserved.

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