Feasible fabrication and textile application of polymer composites featuring dual optical thermoresponses

Wan, Zhimin; Ji, Xiaozhou; Al‐Hashimi, Mohammed; Wang, Chaoxia; Fang, Lei

doi:10.1016/j.cej.2021.129553

Cited by 15 publications

(12 citation statements)

References 39 publications

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“…Nowadays, the application of flexible actuators in wearable devices, [1,2] intelligent robots, [3,4] and bionics [5,6] has attracted much attention due to their excellent actuation property and DOI: 10.1002/advs.202206467 compatibility. With the deepening of actuator research, traditional single-function actuators can no longer meet existing needs.…”

Section: Introductionmentioning

confidence: 99%

Pencil‐Drawn Generator Built‐in Actuator for Integrated Self‐Powered/Visual Dual‐Mode Sensing Functions and Rewritable Display

Zhou

Zhang

et al. 2023

Advanced Science

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Multifunctionality is important to the development of next‐generation actuators and intelligent robots. However, current multi‐functional actuating systems are achieved based on the integration of diverse functional units with complex design, especially lacking in multi‐mode sensing and displaying functions. Herein, a light‐driven actuator integrated with self‐powered/visual dual‐mode sensing functions and rewritable display function is proposed. The actuator demonstrates a bending curvature of 0.93 cm−1 under near‐infrared light irradiation. Meanwhile, by embedding a pencil‐drawn graphite generator and thermochromic materials, the actuator also provides two independent sensing functions. First, owing to the photo‐thermoelectric effect of graphite, the actuator spontaneously outputs a self‐powered voltage (Seebeck coefficient: 23 µV K−1), which can reflect the deformation trend of actuator. Second, color changes occur on the actuator during deformation, which provide a visual sensing due to the thermochromic property. Furthermore, the actuator can be utilized as a rewritable display, owing to the integrated color‐memorizing component. Intelligent robots, switches, and smart homes are further demonstrated as applications. All of them can spontaneously provide self‐powered and visual sensing signals to demonstrate the working states of actuating systems, accompanied by rewritable displays on the actuators. This study will open a new direction for self‐powered devices, multi‐functional actuators, and intelligent robots.

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Section: Introductionmentioning

confidence: 99%

Pencil‐Drawn Generator Built‐in Actuator for Integrated Self‐Powered/Visual Dual‐Mode Sensing Functions and Rewritable Display

Zhou

Zhang

et al. 2023

Advanced Science

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“…The traditional thermochromic (TC) system's phase change materials (PCM) function as an electron transfer channel to regulate color switching. 28 Above the melting temperature ( T m ) of PCM, the fluorane molecular (electron donor) cannot transport an electron to bisphenol A (BPA), showing colorlessness (neutral state). Fluorane molecules are spontaneously protonated and switch color (oxidized state) with the support of BPA below T m .…”

Section: Introductionmentioning

confidence: 99%

Solar-driven bistable thermochromic textiles based on supercooling and space constraint anchoring electron transfer

Wang

Zhang

et al. 2023

J. Mater. Chem. A

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“…Thermochromic chromophores have aroused enormous attentions to fabricate functional temperature threshold sensors because they provide fast and convenient naked‐eye detection, especially those which allow two or more outputs of those mentioned naked‐eye signals. [ 13,20,30,31 ] Moreover, these thermochromic fluorophores may further explore their applications in fields such as energy saving, anticounterfeiting, bioimaging, optical modulation, storage devices, and wearable electronics. [ 32–35 ]…”

Section: Introductionmentioning

confidence: 99%

Three‐Output Naked‐Eye High Temperature Organic Film Threshold Thermometers Based on Non‐Invasive Chemical Reaction

Zhan

Qin

Wang

et al. 2023

Adv Materials Technologies

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High‐contrast and stably visualized ambient or luminescent color‐switching can be achieved by thermal‐induced non‐invasive chemical reaction for naked‐eye threshold temperature indication. The clear and visible output signal of these indicators arises from the large absorption/emission spectral changes upon heating. However, such chemical reactions are difficult to realize in solid‐state, especially in the high‐temperature region. Herein, a series of naked‐eye high‐temperature threshold film indicators have been developed based on the solid‐state in situ thermal decomposition reaction of difluoroboron β‐diketonate derivative. These thermosensitive films feature three high‐contrast visible outputs of ambient thermochromism, fluorescence color change, and luminescence ON/OFF switching, which can be easily detected with the naked eye. The PR‐PS film of (E)‐4‐(2‐(6‐bromopyren‐1‐yl)vinyl)‐2,2‐difluoro‐6‐phenyl‐2H‐1λ3,3,2λ4‐dioxaborinine (PR) doped in polystyrene (PS) polymer matrix achieved high sensitivities related to change of ratiometric luminescence and fluorescence intensity up to 230%°C−1 and 1.85%°C−1, respectively. Furthermore, the polymer matrix with different glass transition temperatures enables programmable tuning of threshold temperature from 120 to 180 °C. These thermosensitive films show clear and high‐contrast color changes and emission turn‐off in real‐time with consistent air stability, high photostability, and waterproofing property. This shows considerable potential in outdoor robust high‐temperature threshold sensing and information storage.

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Feasible fabrication and textile application of polymer composites featuring dual optical thermoresponses

Cited by 15 publications

References 39 publications

Pencil‐Drawn Generator Built‐in Actuator for Integrated Self‐Powered/Visual Dual‐Mode Sensing Functions and Rewritable Display

Pencil‐Drawn Generator Built‐in Actuator for Integrated Self‐Powered/Visual Dual‐Mode Sensing Functions and Rewritable Display

Solar-driven bistable thermochromic textiles based on supercooling and space constraint anchoring electron transfer

Three‐Output Naked‐Eye High Temperature Organic Film Threshold Thermometers Based on Non‐Invasive Chemical Reaction

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