Additive‐Driven Phase‐Selective Chemistry in Block Copolymer Thin Films: The Convergence of Top–Down and Bottom–Up Approaches

Several strategies are demonstrated for the use of additive‐driven chemistries that take place in only one type of the nanosized domains of all‐organic and organic–inorganic hybrid block copolymer thin films. Such an approach is used to examine the convergence of “top–down” and “bottom–up” fabrication via light‐driven processes. Characterization is carried out with microscopies and grazing‐incidence small‐angle X‐ray scattering (see Figure and cover).