STED-inspired optical lithography beyond acrylates

Description

STED-inspired[1], and hence sub-diffractional, nanolithography was so far restricted to free radical polymerizations, predominantly of (meth)acrylates.[2] We now expand the STED-inspired toolkit to cationic[3, 4] and oxidative polymerizations,[5] comprising the technologically important classes of epoxides and pi-conjugated polymers. In both cases, we achieved structure sizes below 100 nm using transient-state absorption depletion (TAD) in systems comprising depletable photosensitizers, optionally combined with onium salts. The pi-conjugated nanostructures are particularly intriguing, because they potentially will allow for sub-diffractional organic electronic devices.

Period	19 Mar 2025
Event title	DGP Frühjahrstagung 2025 Regensburg
Event type	Conference
Location	RegenburgShow on map
Degree of Recognition	International