Inkjet Printed Wiring Boards with Vertical Interconnect Access on Flexible, Fully Compostable Cellulose Substrates
Inkjet Printed Wiring Boards with Vertical Interconnect Access on Flexible, Fully Compostable Cellulose Substrates
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DOI：
10.1002/admt.201700250
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发表时间：
2018-04-01
影响因子：
6.8
通讯作者：
Griesser, Thomas
中科院分区：
文献类型：
--
作者：
Samusjew, Aleksandra;Lassnig, Alice;Griesser, Thomas
纤维素箔是一种可生物降解的碳中性材料，对于大多数导电银墨水来说是一种较差的基材。据报道，醋酸银在 1-甲基咪唑中的简单溶液可用于在几乎完全由纤维素组成的商业包装箔上产生导电图案。还原可以通过热或紫外光照射来进行。在后一种情况下，印刷图案可以在基板的两侧变得导电，并且在整个纤维素箔上也表现出导电性，从而产生完全印刷的垂直互连通路。对照实验证实，纤维素在完成银盐的还原、获得导电图案方面起着至关重要的作用。
Cellulose foil is a biodegradable and carbon neutral material that is a poor substrate for most conductive silver inks. Herein, it is reported that a simple solution of silver acetate in 1-methylimidazole can be used to produce conductive patterns on a commercial packaging foil that is composed almost exclusively from cellulose. The reduction can be carried out thermally or by irradiation with UV light. In the latter case, the printed pattern may become conductive on both sides of the substrate and also exhibits conductivity across the cellulose foil, giving rise to fully printed vertical interconnect access. Control experiments confirm that the cellulose plays a crucial role in completing the reduction of the silver salt, obtaining conductive patterns.