Rising technical demands of modern information society lead to the pressing need to scale down the characteristic dimensions of conventional Si-based optoelectronic devices.Molecule electronic devices in which individual or a small collection of molecules are utilized as active components have opened up a research approach by combining bottom-up self-assembly and top-down device fabrication.In this regard,it is crucial to develop an effective way for fabricating robust functional molecular devices.Carbon nanotube and graphene,the two allotropes of carbon atoms, have been recently the subjects of intensive studies because of their remarkable properties,which place them as ideal contact materials for building molecular devices.This paper mainly summarizes the recent advance of molecular devices, especially based on carbon nanotube or graphene nanoelectrodes.

Molecular logic is an interdisciplinary research field,which have captured worldwide interest.This review gives a brief introduction into molecular logic

Molecular logic is an interdisciplinary research field,which have captured worldwide interest.This review gives a brief introduction into molecular logic.

With the emphasis of inquiry experiment in chemistry curriculum reformation,experimental safety is more important.Through the comparison research on the content of chemical experiment safety in both Chinese and American chemistry textbooks,it is found that the content of chemical experiment safety in Chinese chemistry textbooks is still at a low level.So that,the content of experimental safety should be clearly expressed in chemistry textbooks, experimental safety signs should be added in chemistry textbooks,the relationship between safety education and active inquiry should be properly treated,and experimental safety should be used as index of experiment assessment to fully play its guiding role.