Flexible supercapacitor fabrication by room temperature rapid laser processing of roll-to-roll printed metal nanoparticle ink for wearable electronics application
Flexible supercapacitor fabrication by room temperature rapid laser processing of roll-to-roll printed metal nanoparticle ink for wearable electronics application
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DOI：
10.1016/j.jpowsour.2013.08.012
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发表时间：
2014-01-15
影响因子：
9.2
通讯作者：
Ko, Seung Hwan
中科院分区：
文献类型：
--
作者：
Yeo, Junyeob;Kim, Geonwoong;Ko, Seung Hwan
本文介绍了一种在聚合物基板上对卷（R2R）印刷金属纳米颗粒（NP）油墨的快速低温激光退火工艺，以替代传统的使用昂贵且耗时长的炉的热退火工艺。由于聚焦激光引起的有限加热，R2R印刷银NP膜在不加热整个衬底的情况下选择性地转变为连续导电膜。因此，与传统的热退火相比，激光退火大大减少了对底层聚合物衬底的损伤以及退火所需的处理时间。所得激光退火银NP薄膜也表现出优于热退火样品的电学和机械性能。进一步将激光退火银NP膜作为集流剂应用于柔性超级电容器，以证实激光退火银NP膜在实际器件制造中的优越性。(C) 2013 Elsevier B.V.版权所有
We introduce a rapid and low-temperature laser annealing process of roll-to-roll (R2R) printed metal nanoparticle (NP) ink on a polymer substrate as an alternative to the conventional thermal annealing process using expensive and time consuming lengthy furnace. Due to the confined heating induced by the focused laser, R2R printed Ag NP film is selectively turned into a continuous conductive film without heating the whole substrate. As a result, the damage on the underlying polymer substrate, as well as the processing time required for the annealing, is significantly reduced by the laser annealing compared to the conventional thermal annealing. The resultant laser annealed Ag NP film also exhibits superior electrical and mechanical properties in comparison to the thermal annealed sample. The laser annealed Ag NP film is further applied to the flexible supercapacitor as the current collector in order to confirm the excellence of laser annealed Ag NP film in the fabrication of practical devices. (C) 2013 Elsevier B.V. All rights reserved.