作者
Sebastian Ulrich, Xiaopu Wang, Markus Rottmar, René Michel Rossi, Bradley J Nelson, Nico Bruns, Ralph Müller, Katharina Maniura‐Weber, Xiao‐Hua Qin, Luciano Fernandes Boesel
发表日期
2021/7
期刊
Small
卷号
17
期号
26
页码范围
2101337
简介
Molecular photoswitches that can reversibly change color upon irradiation are promising materials for applications in molecular actuation and photoresponsive materials. However, the fabrication of photochromic devices is limited to conventional approaches such as mold casting and spin‐coating, which cannot fabricate complex structures. Reported here is the first photoresist for direct laser writing of photochromic 3D micro‐objects via two‐photon polymerization. The integration of photochromism into thiol–ene photo‐clickable resins enables rapid two‐photon laser processing of highly complex microstructures and facile postmodification using a series of donor–acceptor Stenhouse adduct (DASA) photoswitches with different excitation wavelengths. The versatility of thiol–ene photo‐click reactions allows fine‐tuning of the network structure and physical properties as well as the type and concentration of DASA …
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S Ulrich, X Wang, M Rottmar, RM Rossi, BJ Nelson… - Small, 2021