This paper intends to provide an overview for using corannulene derivatives in organic electronics such as organic field-effect transistors（OFETs）,organic solar cells（OSCs）,and organic light-emitting diodes（OLEDs...This paper intends to provide an overview for using corannulene derivatives in organic electronics such as organic field-effect transistors（OFETs）,organic solar cells（OSCs）,and organic light-emitting diodes（OLEDs）.We highlight the rational design strategies,tuning molecular orbital energy levels and arrangement in single crystals of corannulenes.The topological structure and properties of corannulene make it a unique candidate for organic electronics.展开更多
Interfacial host–guest complexation offers a versatile way to functionalize nanomaterials.However,the complicated interfacial environment and trace amounts of components present at the interface make the study of int...Interfacial host–guest complexation offers a versatile way to functionalize nanomaterials.However,the complicated interfacial environment and trace amounts of components present at the interface make the study of interfacial complexation very difficult.Herein,taking the advantages of near-single-molecule level sensitivity and molecular fingerprint of surface-enhanced Raman spectroscopy(SERS),we reveal that a cooperative effect between cucurbit[7]uril(CB[7])and methyl viologen(MV^(2+)2^(I−))in aggregating Au NPs originates from the cooperative adsorption of halide counter anions I^(−),MV^(2+),and CB[7]on Au NPs surface.Moreover,similar SERS peak shifts in the control experiments using CB[n]s but with smaller cavity sizes suggested the occurrence of the same guest complexations among CB[5],CB[6],and CB[7]with MV2+.Hence,an unconventional exclusive complexation model is proposed between CB[7]and MV^(2+)on the surface of Au NPs,distinct from the well-known 1:1 inclusion complexation model in aqueous solutions.In summary,new insights into the fundamental understanding of host–guest interactions at nanostructured interfaces were obtained by SERS,which might be useful for applications related to host–guest chemistry in engineered nanomaterials.展开更多
基金supported by the 973 Program(No.2015CB856500)the National Science Foundation of China(Nos.91427304,21573181,91227111 and 21102120)+2 种基金the Beijing National Laboratory for Molecular Science(No.20140114)the Fundamental Research Funds for the Central Universities(No.20720160050)of ChinaProgram for Changjiang Scholars and Innovative Research Team in University
文摘This paper intends to provide an overview for using corannulene derivatives in organic electronics such as organic field-effect transistors（OFETs）,organic solar cells（OSCs）,and organic light-emitting diodes（OLEDs）.We highlight the rational design strategies,tuning molecular orbital energy levels and arrangement in single crystals of corannulenes.The topological structure and properties of corannulene make it a unique candidate for organic electronics.
基金This work was financially supported by the NSFC(no.41876099,91427304,91227111,21722304,and 21971216)the Xiamen Science and Technology Project(no.3502Z20183002).
文摘Interfacial host–guest complexation offers a versatile way to functionalize nanomaterials.However,the complicated interfacial environment and trace amounts of components present at the interface make the study of interfacial complexation very difficult.Herein,taking the advantages of near-single-molecule level sensitivity and molecular fingerprint of surface-enhanced Raman spectroscopy(SERS),we reveal that a cooperative effect between cucurbit[7]uril(CB[7])and methyl viologen(MV^(2+)2^(I−))in aggregating Au NPs originates from the cooperative adsorption of halide counter anions I^(−),MV^(2+),and CB[7]on Au NPs surface.Moreover,similar SERS peak shifts in the control experiments using CB[n]s but with smaller cavity sizes suggested the occurrence of the same guest complexations among CB[5],CB[6],and CB[7]with MV2+.Hence,an unconventional exclusive complexation model is proposed between CB[7]and MV^(2+)on the surface of Au NPs,distinct from the well-known 1:1 inclusion complexation model in aqueous solutions.In summary,new insights into the fundamental understanding of host–guest interactions at nanostructured interfaces were obtained by SERS,which might be useful for applications related to host–guest chemistry in engineered nanomaterials.
