Self-assembly of octadecyl mercaptan on gold was investigated by cyclic voltammetry(CV) and electrochemical impedance spectroscopy (EIS). Results of CV experiments show thatthere are no structUral defects exposed dire...Self-assembly of octadecyl mercaptan on gold was investigated by cyclic voltammetry(CV) and electrochemical impedance spectroscopy (EIS). Results of CV experiments show thatthere are no structUral defects exposed directly to the redox couple in solution, but EISexperiments indicate that collapsed sites exist in the monolayer. A method to estimate the degree ofdisorder in the Au/thiol monolayer surface is proposed by using admittance plane plot.展开更多
The photoelectrochemical behaviour of the multilayer semiconductive electrode(GaAs/AlxGa1-xAs)with the structure of N+NP and N+NPP was studied in Na2SO4 solution. Compared with single kind semiconductor electrode, the...The photoelectrochemical behaviour of the multilayer semiconductive electrode(GaAs/AlxGa1-xAs)with the structure of N+NP and N+NPP was studied in Na2SO4 solution. Compared with single kind semiconductor electrode, the commposite one has broader photoresponse spectral region and larger open-circuit photovoltage,consequently gives higher solar energy conversion efficiency.展开更多
For the association schemes of quadratic forms over a finite field of characteristic two, the parameters of this association scheme are discussed by using matrix skill. For n=2, 3 , all the parameters are computed. Fo...For the association schemes of quadratic forms over a finite field of characteristic two, the parameters of this association scheme are discussed by using matrix skill. For n=2, 3 , all the parameters are computed. For n≥3 , the formulas of parameters P * 2 -2j+1 and related recursion formulas of the general parameters P * ** are obtained.展开更多
文摘Self-assembly of octadecyl mercaptan on gold was investigated by cyclic voltammetry(CV) and electrochemical impedance spectroscopy (EIS). Results of CV experiments show thatthere are no structUral defects exposed directly to the redox couple in solution, but EISexperiments indicate that collapsed sites exist in the monolayer. A method to estimate the degree ofdisorder in the Au/thiol monolayer surface is proposed by using admittance plane plot.
文摘The photoelectrochemical behaviour of the multilayer semiconductive electrode(GaAs/AlxGa1-xAs)with the structure of N+NP and N+NPP was studied in Na2SO4 solution. Compared with single kind semiconductor electrode, the commposite one has broader photoresponse spectral region and larger open-circuit photovoltage,consequently gives higher solar energy conversion efficiency.
文摘For the association schemes of quadratic forms over a finite field of characteristic two, the parameters of this association scheme are discussed by using matrix skill. For n=2, 3 , all the parameters are computed. For n≥3 , the formulas of parameters P * 2 -2j+1 and related recursion formulas of the general parameters P * ** are obtained.
