Method for manufacturing functional substrates comprising columnar micro-pillars

摘要

A functioning substrate (100) with a group of columnar micro pillars (104) is provided. The functioning substrate (100) comprises a matrix (102) of an organic polymer and a group of columnar micro pillars (104) extending from the matrix (102). The columnar micro pillars (104) have an equivalent diameter (D) in the range from 10 nm to 500 mu m and a height (H) in the range from 50 nm to 5000 mu m, and they have an aspect ratio (H/D) of the height (H) to the equivalent diameter (D) which is 4 or more.