Combination flexible and stretchable textiles with self-powered sensors bring a novel insight into wearable functional electronics and cyber security in the era of Internet of Things.This work presents a highly flexible and self-powered fully fabric-based
碱金属蒸气腔室广泛用于原子钟和原级温度计等重要领域,与其相适配的微型加热器对碱金属蒸气腔室的应用有着重要的影响。设计了一种可用于双腔体蒸气腔室的微型加热器,并利用仿真估算了微加热器的加热效果。基于微电子机械系统(MEMS)薄膜制备工艺,利用溅射沉积了氧化铟锡(ITO)薄膜与Cr/Au薄膜,利用剥离工艺将薄膜图形化后制备了微加热器的结构。经过光学、热学和电学测试可知,该微加热器在700~900 nm波长内能够保持80%以上的透光率;在外接电压不低于4 V时,能为碱金属蒸气腔室提供100℃以上的工作温度;在5
以三聚氰胺、硝酸铈和硝酸银为原料,通过一步原位固相煅烧法制备了Ag/CeO
2/g-C
3N
4复合光催化剂材料。采用X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和紫外可见漫反射吸收谱(UV-Vis DRS)等对制备出的样品进行了表征测试。以亚甲基蓝(MB)为模拟污染物,对样品的可见光催化性能进行了测试。结果表明,Ag/CeO
2/g-C
3N
Efficient electron transport layers(ETLs)not only play a crucial role in promoting carrier separation and electron extraction in perovskite solar cells(PSCs)but also significantly affect the process of nucleation and growth of the perovskite layer.Herein,
p型4H-SiC相较n型4H-SiC具有更高的压阻效应,p型4H-SiC正方形膜片作为弹性元件相较圆形膜片具有更高的灵敏度。基于此,设计了一种基于p型4H-SiC压阻效应的高灵敏度碳化硅压力传感器,探索了Ni/Al/Ni/Au与p型4H-SiC之间形成良好欧姆接触的条件,并制备了传感器芯片。在25~600℃空气环境中对传感器芯片的电阻进行了测试,验证了传感器在≤600℃下具有良好的电连接性。最后,在常温至250℃下对传感器进行性能测试。实验结果显示,常温环境下传感器具有较高的输出灵敏度为10.9μV/V/
The electrochemical nitrogen reduction reaction(NRR)to directly produce NH3 from N2 and H2O under ambient conditions has attracted significant attention due to its ecofriendliness.Nevertheless,the electrochemical NRR presents several
Rapid development of energy,electrical and electronic technologies has put forward higher requirements for the thermal conductivities of polymers and their composites.However,the thermal conductivity coefficient(λ)values of prepared thermally conductive p
Although current anticancer immunotherapies using immune checkpoint inhibitors(ICIs)have been reported with a high clinical success rate,numerous patients still bear‘cold’tumors with insufficient T cell infiltration and low immunogenicity,responding poorl
采用金属辅助化学腐蚀(MACE)法,通过控制不同的腐蚀时间制备出多孔硅.利用扫描电子显微镜(SEM)观察多孔硅形貌,分析结果表明,随着腐蚀时间的增加,硅表面腐蚀孔洞变大,孔洞深
为了高效、稳定地电化学还原二氧化碳(CO2)为多碳产物,制备了由纳米铜(Cu)原子包覆多孔石墨纤维组成的亚单层Cu金属催化剂.催化结果表明,亚单层Cu原子修饰的多孔石墨纤维在-0