High-fidelity and clean nanotransfer lithography using structure-embedded and electrostatic-adhesive carriers.

Metallic nanostructures are becoming increasingly important for both fundamental research and practical devices. Many emerging applications employing metallic nanostructures often involve unconventional substrates that are flexible or nonplanar, making direct lithographic fabrication very difficult. An alternative approach is to transfer prefabricated structures from a conventional substrate; however, it is still challenging to maintain high fidelity and a high yield in the transfer process.

Hybrid modeling of perovskite light-emitting diodes with nanostructured emissive layers.

Perovskite light-emitting diodes (PeLEDs) have attracted much attention due to their superior performance. When a bottleneck of energy conversion efficiency is achieved with materials engineering, nanostructure incorporation proves to be a feasible approach to further improve device efficiencies via light extraction enhancement. The finite-difference time-domain simulation is widely used for optical analysis of nanostructured optoelectronic devices, but reliable modeling of PeLEDs with nanostructured emissive layers remains unmet due to the difficulty of locating dipole light sources.

A High-Efficiency Hematite Photoanode with Enhanced Bonding Energy Around Fe Atoms.

Hematite nanoarrays are important photoanode materials. However, they suffer from serious problems of charge transfer and surface states; in particular, the surface states hinder the increase in photocurrent. A previous strategy to suppress the surface state is the deposition of an Fe-free metal oxide overlayer.

SnO-Modified Two-Dimensional CuO for Enhanced Electrochemical Reduction of CO to CH.

Electrochemical reduction of CO was a widespread method for CO conversion into valuable chemical fuel. CH is an important product from CO reduction. However, conversion of CO into the hydrocarbon CH faced large energy barriers.

Selective photocatalytic CO reduction on copper-titanium dioxide: a study of the relationship between CO production and H suppression.

Low selectivity and the competing reaction of hydrogen evolution are two problems in photocatalytic CO2 reduction. Herein, we deposited highly crystalline metallic Cu nanoparticles onto TiO2 photocatalysts using a solvothermal method. They were found to convert CO2 into CO without any by-products.