PURPOSE: A hyper-hydrophobic surface treating method and an evaporator with a hyper-hydrophobic surface are provided to reduce time required for treating and to easily form the hyper-hydrophobic surface on a surface of an article which is complicated and cubic. CONSTITUTION: A hyper-hydrophobic surface treating method is as follows. A metallic base material is prepared(S10). A ceramic layer with a composite structure of a micro structure and a nano fiber structure is formed on a surface of the metallic base material by anodizing the metallic base material(S20). Hydrophobic polymer substances are coated on the composite structure so that a polymer layer having the same surface shape of the composite structure is formed(S30). [Reference numerals] (S10) Preparing a metallic base material; (S20) Forming a ceramic layer with a composite structure of a micro structure and a nano fiber structure by anodizing; (S30) Forming a polymer layer by coating hydrophobic polymer substances

A method for nanoimprinting a piezoelectric polymeric material to form high aspect ratio nanopillars includes: heating a surface of a piezoelectric polymeric material to an imprinting temperature, which ranges within (Tc -25) DEG C and Tc, where Tc is the Curie point of the piezoelectric polymeric material; and pressing the surface of the piezoelectric polymeric material using a nanoimprinting template with nanopillars formed thereon so as to form the high aspect ratio nanopillars on the surface of the piezoelectric polymeric material. A piezoelectric polymeric material having nanopillars formed according to the method of this invention is also disclosed.

The invention relates to a preparation method of carbon nanotube radiators, which comprises the following steps: providing a base plate; growing a plurality of first nanotubes and a plurality of second carbon nanotubes in the same direction, wherein the free ends of the first carbon nanotubes and the free ends of the second carbon nanotubes are different in height; providing a first substrate anda second substrate and fixing the free ends, far away from the base plate, of the first carbon nanotubes in the first substrate; removing the first carbon nanotubes of which the free ends are fixed in the first substrate from the base plate so that the first carbon nanotubes are independently formed on the first substrate, and obtaining a first nanotube radiator; fixing the free ends of the second carbon nanotubes in the second substrate; and removing the second carbon nanotubes of which the free ends are fixed in the second substrate from the base plate so that the second carbon nanotubes are independently formed on the second substrate, and obtaining a second carbon nanotube radiator.

PURPOSE: A wire grid polarizer, a manufacturing method thereof, and a display panel with the wire grid polarizer are provided to reduce the pitches of conductive nano wires by 50nm. CONSTITUTION: A plurality of parallel micro grooves(31) are formed on the bottom of a mold(30). The mold is arranged on a transparent substrate(40). The micro grooves are filled with conductive liquid ink. A plurality of conductive nano wires are formed on the transparent substrate. The mold is eliminated.