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arXiv · 2211.01271

Initiator-free photo-crosslinkable cellulose-based resists for fabricating submicron patterns via direct laser writing

Maximilian Rothammer·Dominic T. Meiers·Maximilian Maier·Georg von Freymann·Cordt Zollfrank
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Abstract

Novel bifunctional cellulose diacetate derivatives were synthesized in order to achieve bio-based photoresists, which can be structured by two-photon absorption via direct laser writing (DLW) without the need to use a photoinitiator. Therefore, cellulose diacetate is functionalized with thiol moieties and olefinic or methacrylic side groups enabling thiol-conjugated crosslinking. These cellulose derivatives are also photo-crosslinkable via UV irradiation ($\lambda$ = 254 nm and 365 nm) without using an initiator.

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Maximilian Rothammer, Dominic T. Meiers, Maximilian Maier, Georg von Freymann, Cordt Zollfrank. 2022-11-02. Initiator-free photo-crosslinkable cellulose-based resists for fabricating submicron patterns via direct laser writing. https://doi.org/10.1364/josab.479654

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