Flexible sensors have great potential for monitoring human body motion signals. This paper presents a flexible sensor that uses zinc oxide (ZnO) to improve the mechanical properties and electrical conductivity of PVA ...Flexible sensors have great potential for monitoring human body motion signals. This paper presents a flexible sensor that uses zinc oxide (ZnO) to improve the mechanical properties and electrical conductivity of PVA hydrogel. The composite hydrogel has excellent conductive properties and high strain sensitivity, making it suitable for motion monitoring. The PVA/ZnO conductive hydrogel is tested on various body parts, showing effective feedback on movement changes and good electrical signal output effects for different motion degrees, confirming its feasibility in flexible sensors. The sensor exhibits good mechanical properties, electrical conductivity, and tensile strain sensing performance, making it a promising sensor material. It can accurately monitor wrist bending, finger deformation, bending, and large-scale joint movements due to its wide monitoring range and recoverable strain. The results show that the PVA/ZnO conductive hydrogel can provide effective feedback in flexible sensors, which is suitable for use in motion monitoring.展开更多
采用低温水热法在掺铝氧化锌(AZO)基底上,通过在溶解有乙酸锌(ZnAc_2)与六次甲基四胺(HMTA)的反应溶液中引入NH_4NO_3与In(NO_3)_3,制备出不同形貌和光学性能的ZnO纳米柱阵列。采用扫描电子显微镜、透射光谱、光致发光发射谱研究了NH_4N...采用低温水热法在掺铝氧化锌(AZO)基底上,通过在溶解有乙酸锌(ZnAc_2)与六次甲基四胺(HMTA)的反应溶液中引入NH_4NO_3与In(NO_3)_3,制备出不同形貌和光学性能的ZnO纳米柱阵列。采用扫描电子显微镜、透射光谱、光致发光发射谱研究了NH_4NO_3与In(NO_3)_3对ZnO纳米柱阵列的结构和光学性质的影响。结果表明:溶液中添加的In(NO_3)_3显著地降低了ZnO纳米柱的密度,增大了纳米柱之间的间距,从而能够作为太阳能电池的减反射层使用。通过控制NH_4NO_3与In(NO_3)_3在反应溶液中的添加比例,可以在3.35~3.62 e V范围内调控所制备的ZnO纳米柱的光学带隙宽度。展开更多
文摘Flexible sensors have great potential for monitoring human body motion signals. This paper presents a flexible sensor that uses zinc oxide (ZnO) to improve the mechanical properties and electrical conductivity of PVA hydrogel. The composite hydrogel has excellent conductive properties and high strain sensitivity, making it suitable for motion monitoring. The PVA/ZnO conductive hydrogel is tested on various body parts, showing effective feedback on movement changes and good electrical signal output effects for different motion degrees, confirming its feasibility in flexible sensors. The sensor exhibits good mechanical properties, electrical conductivity, and tensile strain sensing performance, making it a promising sensor material. It can accurately monitor wrist bending, finger deformation, bending, and large-scale joint movements due to its wide monitoring range and recoverable strain. The results show that the PVA/ZnO conductive hydrogel can provide effective feedback in flexible sensors, which is suitable for use in motion monitoring.
文摘采用低温水热法在掺铝氧化锌(AZO)基底上,通过在溶解有乙酸锌(ZnAc_2)与六次甲基四胺(HMTA)的反应溶液中引入NH_4NO_3与In(NO_3)_3,制备出不同形貌和光学性能的ZnO纳米柱阵列。采用扫描电子显微镜、透射光谱、光致发光发射谱研究了NH_4NO_3与In(NO_3)_3对ZnO纳米柱阵列的结构和光学性质的影响。结果表明:溶液中添加的In(NO_3)_3显著地降低了ZnO纳米柱的密度,增大了纳米柱之间的间距,从而能够作为太阳能电池的减反射层使用。通过控制NH_4NO_3与In(NO_3)_3在反应溶液中的添加比例,可以在3.35~3.62 e V范围内调控所制备的ZnO纳米柱的光学带隙宽度。
