文献类型：期刊文献

英文题名：Charge Manipulation Based Selective Functionalization of 3D Printed Structures for Functional Devices

作者：Chen, Yang[1];Xiao, Ting[1];Hu, Minghui[1];Wang, Nan[2];Pan, Likun[3];Ling, Xiaofeng[2];Gao, Yang[1,4]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China;[3]East China Normal Univ, Sch Phys & Mat Sci, Shanghai 200062, Peoples R China;[4]Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

年份：2022

卷号：7

期号：6

外文期刊名：ADVANCED MATERIALS TECHNOLOGIES

收录：;EI(收录号：20215211384340);WOS:【SCI-EXPANDED(收录号:WOS:000733378300001)】；

基金：This project was supported by the National Key Research and Development Program of China (Grant No. 2020YFB2008500), the National Natural Science Foundation of China (Grant Nos. 51835003 and 61804054), and the Open Project Program of Wuhan National Laboratory for Optoelectronics NO.2020WNLOKF007.

语种：英文

外文关键词：3D printing; electrostatic interaction; multiwalled carbon nanotube; selective deposition

摘要：As a rapid prototyping technology, digital light processing (DLP)-based 3D printing has prospect in electronics for its excellent molding speed and accuracy. Although complex and precise models can be obtained by the DLP-based 3D printing, the functionalization of the printed models is still a challenge. Herein, a cost-effective, efficient, and scalable approach based on the electrostatic interaction for the selective deposition of multiwalled carbon nanotubes (MWCNTs) on structures printed by DLP technique is reported. The structures are fabricated by alternatively DLP 3D printing of neutrally and positively charged resins, with positively charged resin for attracting MWCNTs with negative charges. The positive and negative charges come from the cationic groups incorporated into the polymer matrix and the anionic dispersant on the MWCNTs, respectively. By controlling the pH and concentration of the functional material dispersion, as well as the deposition time, the characteristics of the deposited functional materials, including thickness and conductivity, can be modulated. In addition, an all-solid-state supercapacitor is developed by this method, delivering a capacitance of 30 mu F cm(-2) and a good electrochemical stability.