Photoinduced electron transfer processes between fullerenes (C60 / C70) and N, N, N, N tetra - ( p-methylphenyl ) - 4, 4 diamino - 1, 1- diphenyl ether ( TPDAE ) have been studied by nanosecond laser flash photolysis....Photoinduced electron transfer processes between fullerenes (C60 / C70) and N, N, N, N tetra - ( p-methylphenyl ) - 4, 4 diamino - 1, 1- diphenyl ether ( TPDAE ) have been studied by nanosecond laser flash photolysis. Quantum yields and rate constants of electron transfer from TPDAE to excited triplet state of fullerenes (C60 / C70 ) in benzonitrile have been evaluated by observing the transient absorption bands in the near-IR region where the excited triplet state, radical anion of fullerenes ( C60 / C70 ) and radical cations of TPDAE appear.展开更多
Fullerene(C_(60))nanowires have attracted significant attention in the past two decades due to their outstanding chemical and physical properties,which render the material a wide range of potential applications.Much e...Fullerene(C_(60))nanowires have attracted significant attention in the past two decades due to their outstanding chemical and physical properties,which render the material a wide range of potential applications.Much effort has been devoted to exploring the growth methods,structural and compositional characterizations,and application-related investigations of this novel carbon nanomaterial.Here,we present a review of C_(60)nanowires in which we will first describe the recent development in the material preparations,analytical techniques,crystal structures,chemical compositions,and the investigations of polymerization processes.Afterward,we will discuss the mechanistic studies on the nanowires’growth as the mechanism research is of great importance for their size control,large-scale preparation,and for the exploration of applications in a wide range of fields.Finally,we will discuss the potential applications in several directions,including optical,electrical,mechanical,and biological fields,as well as our perspectives to future developments.展开更多
Organic photovoltaic devices(OPVs) using chiral cyclohexene-fused [C_(60)]-fullerene derivatives that have(l)-menthyl ester moiety have been prepared and their properties evaluated as acceptor molecules with P3 HT pol...Organic photovoltaic devices(OPVs) using chiral cyclohexene-fused [C_(60)]-fullerene derivatives that have(l)-menthyl ester moiety have been prepared and their properties evaluated as acceptor molecules with P3 HT polymer: racemic cyclohexene-fused [C_(60)] fullenene,(RS)-(1 R,2 S,5 R)-2 a showed higher PCE(2.81%) than that of standard [C_(60)]-PCBM(2.64%) under the same analysis conditions. On the contrary, devices using chiral(R)-(1 R,2 S,5 R)-2 a and(S)-(1 R,2 S,5 R)-2 a, showed PCE as 1.08% and 1.10%, respectively. The main origin of the differences in PCE was found to be their poor Jsc values. The results indicate that the aggregation state might influence the interaction state with P3 HT and impact the results of the OPV properties, Jsc values in particular.展开更多
The solubilities of C60 and C70 in toluene, o-xylene and CS2 between melting point and boiling point have been measured. The temperature-dependent solubillty of C60 displays the anomalous behavior. A solubility maximu...The solubilities of C60 and C70 in toluene, o-xylene and CS2 between melting point and boiling point have been measured. The temperature-dependent solubillty of C60 displays the anomalous behavior. A solubility maximum of C60 around O℃ for toluene and CS2, and around 30℃ for o-xylene was observed. The temperature-dependent solu bility of C70 displays the normal behavior in the same solvents.展开更多
A C60-aromatic imino derivative with novel structure was prepared by reaction of C60 with benzoic 4-azido-2,3,5,6-tetrafluorobenzoicate in chlorobenzene,at 110℃-113℃,under Ar;which was confirmed by FAB-MS,FT-IR,1H N...A C60-aromatic imino derivative with novel structure was prepared by reaction of C60 with benzoic 4-azido-2,3,5,6-tetrafluorobenzoicate in chlorobenzene,at 110℃-113℃,under Ar;which was confirmed by FAB-MS,FT-IR,1H NMR,13C NMR,19F NMR,UV-vis and HPLC spectra.It cosistents with the C2v symmentry assoiated with [6,6] addition.In addition,this adduct was high stable in therm and high solubility in a solution of chloroform,toluene and acetone;It may find application as microelectronic material in biological,medical and building areas.展开更多
文摘Photoinduced electron transfer processes between fullerenes (C60 / C70) and N, N, N, N tetra - ( p-methylphenyl ) - 4, 4 diamino - 1, 1- diphenyl ether ( TPDAE ) have been studied by nanosecond laser flash photolysis. Quantum yields and rate constants of electron transfer from TPDAE to excited triplet state of fullerenes (C60 / C70 ) in benzonitrile have been evaluated by observing the transient absorption bands in the near-IR region where the excited triplet state, radical anion of fullerenes ( C60 / C70 ) and radical cations of TPDAE appear.
文摘Fullerene(C_(60))nanowires have attracted significant attention in the past two decades due to their outstanding chemical and physical properties,which render the material a wide range of potential applications.Much effort has been devoted to exploring the growth methods,structural and compositional characterizations,and application-related investigations of this novel carbon nanomaterial.Here,we present a review of C_(60)nanowires in which we will first describe the recent development in the material preparations,analytical techniques,crystal structures,chemical compositions,and the investigations of polymerization processes.Afterward,we will discuss the mechanistic studies on the nanowires’growth as the mechanism research is of great importance for their size control,large-scale preparation,and for the exploration of applications in a wide range of fields.Finally,we will discuss the potential applications in several directions,including optical,electrical,mechanical,and biological fields,as well as our perspectives to future developments.
基金supported by a Grant-in-Aid for Scientific Research of the GSC Center of Tottori University from the Ministry of Education, Culture, Sports, Science and Technology of Japansupported by a fund for Environmental Research from Tottori Prefecture
文摘Organic photovoltaic devices(OPVs) using chiral cyclohexene-fused [C_(60)]-fullerene derivatives that have(l)-menthyl ester moiety have been prepared and their properties evaluated as acceptor molecules with P3 HT polymer: racemic cyclohexene-fused [C_(60)] fullenene,(RS)-(1 R,2 S,5 R)-2 a showed higher PCE(2.81%) than that of standard [C_(60)]-PCBM(2.64%) under the same analysis conditions. On the contrary, devices using chiral(R)-(1 R,2 S,5 R)-2 a and(S)-(1 R,2 S,5 R)-2 a, showed PCE as 1.08% and 1.10%, respectively. The main origin of the differences in PCE was found to be their poor Jsc values. The results indicate that the aggregation state might influence the interaction state with P3 HT and impact the results of the OPV properties, Jsc values in particular.
文摘The solubilities of C60 and C70 in toluene, o-xylene and CS2 between melting point and boiling point have been measured. The temperature-dependent solubillty of C60 displays the anomalous behavior. A solubility maximum of C60 around O℃ for toluene and CS2, and around 30℃ for o-xylene was observed. The temperature-dependent solu bility of C70 displays the normal behavior in the same solvents.
文摘A C60-aromatic imino derivative with novel structure was prepared by reaction of C60 with benzoic 4-azido-2,3,5,6-tetrafluorobenzoicate in chlorobenzene,at 110℃-113℃,under Ar;which was confirmed by FAB-MS,FT-IR,1H NMR,13C NMR,19F NMR,UV-vis and HPLC spectra.It cosistents with the C2v symmentry assoiated with [6,6] addition.In addition,this adduct was high stable in therm and high solubility in a solution of chloroform,toluene and acetone;It may find application as microelectronic material in biological,medical and building areas.
