Temperature-Dependent Electrochromic Devices for Energy-Saving Dual-Mode Displays

Wu, Wenting1; Fang, Huajing1,2; Wu, Lingqi1; Ma, Hailong1; Wang, Hong3

2023

10.1021/acsami.2c20394

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Electrochromic (EC) devices show promising prospects with the increasing demand for energy-efficient and sustainable technologies. Multifunctionality integration is an inevitable characteristic for EC devices to adapt to changing environments. Herein, a dual-mode temperature-dependent EC device is demonstrated for the first time. Combined with the transparent PVA/EG-ZnCl2 organohydrogel electro-lyte, the devices exhibit good EC performances over a wide temperature range (-40 to 40 degrees C). The evolutions of ion/electron transport kinetics-related indicators with temperature are further explored and simulated to reveal the mechanism of the temperature dependence of EC devices. Significantly, the optimized tungsten oxide-based EC device shows high performances at the extremely low temperature of -40 degrees C with a large transmittance modulation (80.8% @660 nm) and outstanding optical memory effects (97.3% retention of the initial transmittance modulation after 32 h) without electrical energy consumption. Furthermore, with a perovskite quantum dot photoluminescence film serving as the backlight, the device can switch display modes between emissive and reflective to realize its functionality in bright or dark conditions. This work provides a broad application prospect for EC devices in diverse environments of light (bright/dark) and temperature (hot/cold).

electrochromic device tungsten oxide organohydrogel electrolyte photoluminescence dual-mode display

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51902250] ; Guangdong Provincial Key Laboratory Program[2021B1212040001] ; Shenzhen Science and Technology Program[KQTD20180411143514543]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000921033600001

AMER CHEMICAL SOC

20230413427119

Display devices ; Electrochromic devices ; Electrochromism ; Electrolytes ; Energy efficiency ; Energy utilization ; Perovskite ; Photoluminescence ; Semiconductor quantum dots ; Temperature distribution

Minerals:482.2 ; Energy Conservation:525.2 ; Energy Utilization:525.3 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Electronic Components and Tubes:714 ; Semiconductor Devices and Integrated Circuits:714.2 ; Computer Peripheral Equipment:722.2 ; Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

Web of Science

1.Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Provis Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Wu, Wenting,Fang, Huajing,Wu, Lingqi,et al. Temperature-Dependent Electrochromic Devices for Energy-Saving Dual-Mode Displays[J]. ACS Applied Materials & Interfaces,2023,15(3):4113-4121.

Wu, Wenting,Fang, Huajing,Wu, Lingqi,Ma, Hailong,&Wang, Hong.(2023).Temperature-Dependent Electrochromic Devices for Energy-Saving Dual-Mode Displays.ACS Applied Materials & Interfaces,15(3),4113-4121.

Wu, Wenting,et al."Temperature-Dependent Electrochromic Devices for Energy-Saving Dual-Mode Displays".ACS Applied Materials & Interfaces 15.3(2023):4113-4121.