Patterning of Nanoparticle-Based Aerogels and Xerogels by Inkjet Printing
Patterning of Nanoparticle-Based Aerogels and Xerogels by Inkjet Printing
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DOI：
10.1002/smll.201902186
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发表时间：
2019-08-08
期刊：
影响因子：
13.3
通讯作者：
Bigall, Nadja C.
中科院分区：
文献类型：
--
作者：
Luebkemann, Franziska;Miethe, Jan Frederick;Bigall, Nadja C.
具有低密度的基于纳米颗粒的大体积3D网络是一类独特的材料，通常称为气凝胶。由于气凝胶和干凝胶的高表面积与体积比，它们可能是不同领域应用的合适材料，例如催化剂，催化剂或传感器。处理基于纳米颗粒的气凝胶和干凝胶的一个主要困难是这些结构在不同基底和表面上的限定图案化。基于纳米颗粒的气凝胶或干凝胶涂覆的电极的自动化制造可以通过喷墨打印容易地实现。这项工作的主要重点是在商业喷墨打印系统中实现标准的基于纳米颗粒的凝胶化过程。通过同时印刷半导体纳米颗粒和去稳定剂，在导电和透明表面上获得3D网络。首先记录光谱电化学测量，以调查这些3D的基于电致伸缩器的干凝胶网络内的电荷载流子迁移率。
Nanoparticle-based voluminous 3D networks with low densities are a unique class of materials and are commonly known as aerogels. Due to the high surface-to-volume ratio, aerogels and xerogels might be suitable materials for applications in different fields, e.g. photocatalysis, catalysis, or sensing. One major difficulty in the handling of nanoparticle-based aerogels and xerogels is the defined patterning of these structures on different substrates and surfaces. The automated manufacturing of nanoparticle-based aerogel- or xerogel-coated electrodes can easily be realized via inkjet printing. The main focus of this work is the implementation of the standard nanoparticle-based gelation process in a commercial inkjet printing system. By simultaneously printing semiconductor nanoparticles and a destabilization agent, a 3D network on a conducting and transparent surface is obtained. First spectro-electrochemical measurements are recorded to investigate the charge-carrier mobility within these 3D semiconductor-based xerogel networks.