TY - JOUR
T1 - Self-Powered Rewritable Electrochromic Display based on WO3-xFilm with Mechanochemically Synthesized MoO3- yNanosheets
AU - Wu, Wenting
AU - Fang, Huajing
AU - Ma, Hailong
AU - Wu, Liangliang
AU - Wang, Qing
AU - Wang, Hong
N1 - Funding Information:
This research was supported by the National Science Foundation of China (Nos. 61631166004 and 51902250) and the Fundamental Research Funds for the Central Universities (xzy012019002). H.F. thanks the support from National Postdoctoral Program for Innovative Talents (No. BX201700185) and Natural Science Basic Research Plan in Shaanxi Province of China (No. 2020JQ-035). H.W. acknowledged the support of Shenzhen Science and Technology Program (No. KQTD20180411143514543) and Shenzhen DRC project [2018]1433. The Instrument Analysis Center of Xi’an Jiaotong University is acknowledged for the great helps in measurements.
Publisher Copyright:
©
PY - 2021/5/5
Y1 - 2021/5/5
N2 - Electrochromic displays with bistable color states provide a promising means toward transparent human-machine interfaces. However, the need for external power and the weak optical modulation in the visible light region of most electrochromic devices hinder their practical applications in displays. Here we prepare the MoO3-y/WO3-x films based on MoO3-y nanosheets, which show a dark blue color that matches the response of the eye and meets visual comfort standards compared to pure WO3-x film. By introducing the highly transparent Al3+ ion hydrogel layer, a convenient electrochromic device driven by the internal chemical potential has been designed. The device based on the MoO3-y /WO3-x film exhibits a high optical modulation in the whole visible light range and can operate at self-powered mode with fast response speed and excellent cycle stability. Moreover, we develop an ionic writing board based on the MoO3-y/WO3-x film to surmount the fixed display information issue in conventional electrochromic displays. The ionic writing board exhibits excellent visual display quality and realizes arbitrary writing with a self-powered characteristic. This work provides a simple mechanochemical synthesis procedure of MoO3-y nanosheets and an ingenious design of self-powered electrochromic devices, which will enable the development of next-generation high-performance electrochromic displays.
AB - Electrochromic displays with bistable color states provide a promising means toward transparent human-machine interfaces. However, the need for external power and the weak optical modulation in the visible light region of most electrochromic devices hinder their practical applications in displays. Here we prepare the MoO3-y/WO3-x films based on MoO3-y nanosheets, which show a dark blue color that matches the response of the eye and meets visual comfort standards compared to pure WO3-x film. By introducing the highly transparent Al3+ ion hydrogel layer, a convenient electrochromic device driven by the internal chemical potential has been designed. The device based on the MoO3-y /WO3-x film exhibits a high optical modulation in the whole visible light range and can operate at self-powered mode with fast response speed and excellent cycle stability. Moreover, we develop an ionic writing board based on the MoO3-y/WO3-x film to surmount the fixed display information issue in conventional electrochromic displays. The ionic writing board exhibits excellent visual display quality and realizes arbitrary writing with a self-powered characteristic. This work provides a simple mechanochemical synthesis procedure of MoO3-y nanosheets and an ingenious design of self-powered electrochromic devices, which will enable the development of next-generation high-performance electrochromic displays.
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U2 - 10.1021/acsami.1c01959
DO - 10.1021/acsami.1c01959
M3 - Article
C2 - 33881294
AN - SCOPUS:85106143874
SN - 1944-8244
VL - 13
SP - 20326
EP - 20335
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 17
ER -