Chemical engineers work across a number of sectors, processes differ within each of these areas, but chemistry and chemical engineering roles are found throughout, creation and manufacturing process of chemical products and materials. Recommanded Product: Cuprous thiocyanate, Name is Cuprous thiocyanate, Recommanded Product: Cuprous thiocyanate, molecular formula is CCuNS. In a article，once mentioned of Recommanded Product: Cuprous thiocyanate
Solid-state dye-sensitized solar cells of the type TiO2/dye/ CuSCN have been made with thin Al2O3 barriers between the TiO2 and the dye. The Al2O3-treated cells show improved voltages and fill factors but lower short-circuit currents. Transient photovoltage and photocurrent measurements have been used to find the pseudo-first-order recombination rate constant (kpfo) and capacitance as a function of potential. Results show that kpfo is dependent on Va¿¿ with the same form as in TiO2/dye/electrolyte cells. The added Al2O3 layer acts as a “tunnel barrier”, reducing the kpfo and thus increasing V a¿¿. The decrease in KpfO also results in an increased fill factor. Capacitance vs voltage plots show the same curvature (a¿¼150 mV/decade) as found in Tio2dye/ electrolyte cells. The application of one AL2O3 layer does not cause a significant shift in the shape or position of the capacitance curve, indicating that changes in band offset play a lesser role in the observed Va¿¿ increase. Cells made with P25 TiO2 have, on average, 2.5 times slower recombination rate constants (longer lifetimes) than those made with colloidal TiO 2. The cells with P25 also show 2.3 times higher trap density (DOS), which results in little change in the Va¿¿ between the two types of TiO2. It is further noted that the recombination current in these cells cannot be calculated from the total charge times the first order rate constant. A 2005 American Chemical Society.
Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. A catalyst, does not appear in the overall stoichiometry of the reaction it catalyzes. you can also check out more blogs about Product Details of 125-20-2!, Recommanded Product: Cuprous thiocyanate
Reference：
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”