The integration of a display function with wearable interactive sensors offers a promising way to synchronously detect physiological signals and visualize pressure/stimuli.However,combining these two functions in a st...The integration of a display function with wearable interactive sensors offers a promising way to synchronously detect physiological signals and visualize pressure/stimuli.However,combining these two functions in a strain sensor textile is a longstanding challenge due to the physical separation of sensors and display units.Here,a water-stable luminescent perovskite hydrogel(emission band approximately 25 nm)is constructed by blending as-prepared CsPbBr_(3)@PbBr(OH)with stretchable polyacrylamide(PAM)hydrogels.The facile introduction of CsPbBr_(3)@PbBr(OH)endows the hydrogels with excellent optical properties and a high mechanical strength of 51.3 kPa at a fracture strain of 740%.Interestingly,the resulting hydrogels retain bright green fluorescence under conditions including water,ultraviolet light,and extensive stretching(>700%).As a proof-of-concept,a novel wearable stretchable strain sensor textile based on these hydrogels is developed,and it displays visual-digital synergetic strain detection ability.It can perceive various motions on the human body in real time with electronic output signals from changes in resistance and simultaneously readable optical output signals,whether on land or underwater.This work provides a meaningful guide to rationally design perovskite hydrogels and accelerates the development of wearable visual-digital strain sensor textiles.展开更多
基金supported by the Natural Science Foundation of Jiangsu Province(BK20220288)Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences(Start-up grant E1552102)+2 种基金This work was supported by the Singapore Ministry of Education Academic Research Fund Tier 2(MOE2019-T2-2-127 and MOE-T2EP50120-0002),and A*STAR under AME IRG(A2083c0062)This work was supported by A*STAR under its IAF-ICP Programme I2001E0067 and the Schaeffler Hub for Advanced Research at NTUThis work was also supported by NTU-PSL Joint Lab collaboration。
文摘The integration of a display function with wearable interactive sensors offers a promising way to synchronously detect physiological signals and visualize pressure/stimuli.However,combining these two functions in a strain sensor textile is a longstanding challenge due to the physical separation of sensors and display units.Here,a water-stable luminescent perovskite hydrogel(emission band approximately 25 nm)is constructed by blending as-prepared CsPbBr_(3)@PbBr(OH)with stretchable polyacrylamide(PAM)hydrogels.The facile introduction of CsPbBr_(3)@PbBr(OH)endows the hydrogels with excellent optical properties and a high mechanical strength of 51.3 kPa at a fracture strain of 740%.Interestingly,the resulting hydrogels retain bright green fluorescence under conditions including water,ultraviolet light,and extensive stretching(>700%).As a proof-of-concept,a novel wearable stretchable strain sensor textile based on these hydrogels is developed,and it displays visual-digital synergetic strain detection ability.It can perceive various motions on the human body in real time with electronic output signals from changes in resistance and simultaneously readable optical output signals,whether on land or underwater.This work provides a meaningful guide to rationally design perovskite hydrogels and accelerates the development of wearable visual-digital strain sensor textiles.
