Ultrathin high-resolution flexographic printing using nanoporous stamps.
Ultrathin high-resolution flexographic printing using nanoporous stamps.
复制标题
DOI：
10.1126/sciadv.1601660
复制
发表时间：
2016-12
期刊：
影响因子：
13.6
通讯作者：
Hart AJ
中科院分区：
文献类型：
--
作者：
Kim S;Sojoudi H;Zhao H;Mariappan D;McKinley GH;Gleason KK;Hart AJ
纳米孔邮票使柔版印刷具有统一的纳米级厚度和微米级的横向分辨率。自古代发明以来，浮雕印刷，俗称柔版印刷，已被用于大规模生产从装饰性图形到印刷媒体的各种文物。现在，更高分辨率的柔性版印刷对于制造低成本、大面积的印刷电子产品至关重要。然而，由于接触媒介液体的不稳定性和扩散，使用弹性印章的柔版印刷的分辨率被限制在几十微米。我们引入了工程化的纳米多孔微结构，包括聚合物涂层的定向碳纳米管(CNTs)，作为下一代邮票材料。我们设计和设计了高度多孔的微结构，使其能够被胶体墨水浸湿，并在短暂接触后将薄层转移到目标衬底上。我们展示了各种功能纳米油墨的不同微米级图案的印刷，包括银、氧化锌、三氧化二钨和硫化镉/硫化锌，在刚性和柔顺性衬底上都可以打印。打印的图案具有高度均匀的纳米级厚度(5至50 nm)，并与高保真的邮票特征匹配(边缘粗糙度约为0.2μm)。我们基于纳米接触力学推导了均匀打印的条件，表征了打印的银线和透明导体，实现了0.2m/S的连续打印，后者的分辨率和吞吐量远远超过了工业打印技术。
Nanoporous stamps enable flexographic printing with uniform nanoscale thickness and micrometer-scale lateral resolution. Since its invention in ancient times, relief printing, commonly called flexography, has been used to mass-produce artifacts ranging from decorative graphics to printed media. Now, higher-resolution flexography is essential to manufacturing low-cost, large-area printed electronics. However, because of contact-mediated liquid instabilities and spreading, the resolution of flexographic printing using elastomeric stamps is limited to tens of micrometers. We introduce engineered nanoporous microstructures, comprising polymer-coated aligned carbon nanotubes (CNTs), as a next-generation stamp material. We design and engineer the highly porous microstructures to be wetted by colloidal inks and to transfer a thin layer to a target substrate upon brief contact. We demonstrate printing of diverse micrometer-scale patterns of a variety of functional nanoparticle inks, including Ag, ZnO, WO3, and CdSe/ZnS, onto both rigid and compliant substrates. The printed patterns have highly uniform nanoscale thickness (5 to 50 nm) and match the stamp features with high fidelity (edge roughness, ~0.2 μm). We derive conditions for uniform printing based on nanoscale contact mechanics, characterize printed Ag lines and transparent conductors, and achieve continuous printing at a speed of 0.2 m/s. The latter represents a combination of resolution and throughput that far surpasses industrial printing technologies.
登录
查看更多内容
DOI：
10.1007/s11665-012-0245-9
发表时间：
2013-02-01
影响因子：
2.3
作者：
Faddoul, Rita;Reverdy-Bruas, Nadege;Blayo, Anne
通讯作者：
Blayo, Anne
影响因子：
2.1
作者：
Deganello, D.;Cherry, J. A.;Claypole, T. C.
通讯作者：
Claypole, T. C.
影响因子：
56.9
作者：
Cao, AY;Dickrell, PL;Ajayan, PM
通讯作者：
Ajayan, PM
微波激发表面波等离子体处理多壁碳纳米管的氧功能化
影响因子：
3.7
作者：
Chen, Changlun;Liang, Bo;Nagatsu, Masaaki
通讯作者：
Nagatsu, Masaaki
DOI：
10.1088/0960-1317/21/4/045033
发表时间：
2011-04-01
影响因子：
2.3
作者：
De Volder, Michael F. L.;Park, Sei Jin;Hart, A. John
通讯作者：
Hart, A. John