Stimulated Emission Depletion Lithography with Mercapto-Functional Polymers

被引：50

作者：

Buchegger, Bianca ^{[1
]}

Kreutzer, Johannes ^{[2
]}

Plochberger, Birgit ^{[3
,4
]}

Wollhofen, Richard ^{[1
]}

Sivun, Dmitry ^{[1
]}

Jacak, Jaroslaw ^{[1
,4
]}

Schuetz, Gerhard J. ^{[3
]}

Schubert, Ulrich ^{[2
]}

Klar, Thomas A. ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Appl Phys, Altenberger Str 69, A-4040 Linz, Austria

[2] TU Wien, Inst Mat Chem, Getreidemarkt 9, A-1060 Vienna, Austria

[3] TU Wien, Inst Appl Phys, Getreidemarkt 9, A-1060 Vienna, Austria

[4] Upper Austria Univ Appl Sci, Campus Linz,Garnisonstr 21, A-4020 Linz, Austria

来源：

ACS NANO | 2016年 / 10卷 / 02期

基金：

奥地利科学基金会; 欧洲研究理事会;

关键词：

STED lithography; functional polymers; zirconium oxo cluster polymerization; thiol polymers; FORCE MICROSCOPE CANTILEVERS; SPRING CONSTANT; RESOLUTION; POLYMERIZATION; DYNAMICS; CLUSTERS; SURFACE;

D O I：

10.1021/acsnano.5b05863

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Surface reactive nanostructures were fabricated using stimulated emission depletion (STED) lithography. The functionalization of the nanostructures was realized by copolymerization of a bifunctional metal oxo cluster in the presence of a triacrylate monomer. Ligands of the cluster surface cross-link to the monomer during the lithographic process, whereas unreacted mercapto functionalized ligands are transferred to the polymer and remain reactive after polymer formation of the surface of the nanostructure. The depletion efficiency in dependence of the cluster loading was investigated and full depletion of the STED effect was observed with a cluster loading exceeding 4 wt %. A feature size by lambda/11 was achieved by using a donut-shaped depletion beam. The reactivity of the mercapto groups on the surface of the nanostructure was tested by incubation with mercapto-reactive fluorophores.

引用

页码：1954 / 1959

页数：6

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