DataVXAdvanced MaterialsPaper
journal article·2020-08Open access

3D Two‐Photon Microprinting of Nanoporous Architectures

Frederik Mayer, Daniel Ryklin, Irene Wacker, Ronald Curticean, Martin Čalkovský, Andreas Niemeyer, Zheqin Dong, Pavel A. Levkin, Dagmar Gerthsen, Rasmus R. Schröder, Martin Wegener

Advanced Materials· Volume 32· Issue 32
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Source abstract

Abstract

Abstract A photoresist system for 3D two‐photon microprinting is presented, which enables the printing of inherently nanoporous structures with mean pore sizes around 50 nm by means of self‐organization on the nanoscale. A phase separation between polymerizable and chemically inert photoresist components leads to the formation of 3D co‐continuous structures. Subsequent washing‐out of the unpolymerized phase reveals the porous polymer structures. To characterize the volume properties of the printed structures, scanning electron microscopy images are recorded from ultramicrotome sections. In addition, the light‐scattering properties of the 3D‐printed material are analyzed. By adjusting the printing parameters, the porosity can be controlled during 3D printing. As an application example, a functioning miniaturized Ulbricht light‐collection sphere is 3D printed and tested.
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Research context

PolymersNanomaterialsMaterials processing

OpenAlex topics: Nonlinear Optical Materials Studies · Nanofabrication and Lithography Techniques · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

3DMM2O–Cluster of Excellence (EXC‐2082/1‐390761711) Karlsruhe Institute of Technology (KIT) Karlsruhe 76131 Germany

Institute of Applied Physics (APH) Karlsruhe Institute of Technology (KIT) Karlsruhe 76128 Germany

Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) Karlsruhe 76128 Germany

Centre for Advanced Materials Ruprecht‐Karls‐Universität Heidelberg Im Neuenheimer Feld 225 Heidelberg 69120 Germany

Laboratorium für Elektronenmikroskopie Karlsruhe Institute of Technology (KIT) Karlsruhe 76128 Germany

Institute of Biological and Chemical Systems‐Functional Molecular Systems (IBCS‐FMS) Karlsruhe Institute of Technology (KIT) Eggenstein‐Leopoldshafen 76344 Germany

Funding

Deutsche Forschungsgemeinschaft · European Research Council · Carl-Zeiss-Stiftung · Bundesministerium für Bildung und Forschung

References (14)

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