Ligand Decomposition Differences during Thermal Sintering of Oleylamine-Capped Gold Nanoparticles in Ambient and Inert Environments: Implications for Conductive Inks

被引：2

作者：

Chang, Kai ^{[1
]}

Podder, Chinmoy ^{[1
]}

Pan, Heng ^{[1
]}

机构：

[1] Texas A&M Univ, J Mike Walker 66 Dept Mech Engn, College Stn, TX 77843 USA

来源：

ACS APPLIED NANO MATERIALS | 2023年 / 6卷 / 24期

基金：

美国国家科学基金会;

关键词：

gold nanoparticles; conductive inks; liganddecomposition; printable electronics; sintering; oleylamine; AMORPHOUS-CARBON; CATALYZED GRAPHITIZATION; COLLOIDAL NANOCRYSTALS; REMOVAL; ACTIVATION; COMPLEX; FILMS; SHAPE;

D O I：

10.1021/acsanm.3c04803

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gold nanoparticles (GNPs) are essential in creating conductive inks vital for advancing printable electronics, sensing technologies, catalysis, and plasmonics. A crucial step in fabricating useful GNP-based devices is understanding the thermal sintering process and particularly the decomposition pathways of ligands in different environments. This study addresses a gap in the existing research by examining the sintering of oleylamine (OA)-capped GNPs in both ambient (air) and inert (N2) environments. Through a series of analyses including TGA/MS, Raman spectroscopy, and XPS, distinctive OA decomposition behaviors were identified in air and nitrogen environments. The research delineates two OA decomposition pathways resulting in different porosity, microstructure, and electrical conductivity of GNP films sintered in air and nitrogen environments. The study offers some insights that can steer the sintering and utilization of the GNP sintering process and promises to aid the future development of nanoparticle-based printable electronics.

引用

页码：23418 / 23429

页数：12