Cellulose Nanofiber-Reinforced Ionic Conductors for Multifunctional Sensors and Devices

• DOI: 10.1021/acsami.0c04907
• Publication Date: 2020-05-27T11:48:54Z
• Authors: Ming Wang; Renai Li; Xiao Feng; Chao Dang; Fanglin Dai; Xueqiong Yin; Minghui He; Detao Liu; Haisong Qi
• Keywords: Compressive Strength; Tensile Strength; Nanofibers; Solvents; Hydrogels; Cellulose; 01 natural sciences; 0104 chemical sciences

Ionic conductors are normally prepared from water-based materials in the solid form and feature a combination of intrinsic transparency stretchability. The sensitivity toward humidity inevitably leads to dehydration or deliquescence issues, which will limit long-term use ionic conductors. Here, novel conductor based on natural bacterial cellulose (BC) polymerizable deep eutectic solvents (PDESs) is developed for addressing abovementioned drawbacks. superstrong three-dimensional nanofiber network strong interfacial interaction endow BC–PDES with significantly enhanced mechanical properties (tensile strength 8 × 105 Pa compressive 6.68 106 Pa). Furthermore, compared deliquescent PDESs, composites showed obvious stability, maintain good even when exposed high 120 days. These were demonstrated possess multiple external stimulus, such as strain, pressure, bend, temperature. Thus, they can easily serve supersensitive sensors recognize physical activity humans limb movements, throat vibrations, handwriting. Moreover, be used flexible, patterned electroluminescent devices. This work provides an efficient strategy making cellulose-based sustainable functional have broad application artificial flexible electronics other products.