Flash light sintered copper precursor/nanoparticle pattern with high electrical conductivity and low porosity for printed
Flash light sintered copper precursor/nanoparticle pattern with high electrical conductivity and low porosity for printed
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DOI：
10.1016/j.tsf.2015.03.004
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发表时间：
2015-04-01
期刊：
影响因子：
2.1
通讯作者：
Kim, Hak-Sung
中科院分区：
文献类型：
--
作者：
Chung, Wan-Ho;Hwang, Hyun-Jun;Kim, Hak-Sung
在这项工作中，制备了具有前体和纳米颗粒的混合铜墨水，并通过闪光灯照射进行烧结，以实现具有低孔隙率的高导电电极图案。混合铜墨水由铜纳米粒子和各种铜前体（例如氯化铜（II）、三水合硝酸铜（II）、五水合硫酸铜（II）和三氟乙酰丙酮铜（II））制成。使用内部闪光灯烧结系统在室温和环境条件下对印刷的混合铜油墨进行烧结。研究了铜前体重量分数和闪光照射条件（光能量和脉冲持续时间）的影响。使用扫描电子显微镜分析烧结混合铜图案的表面。此外，还使用傅里叶变换红外光谱和 X 射线衍射等光谱表征技术来研究闪光烧结铜前驱体的晶相。在室温和环境条件下通过闪光烧结获得了高导电率混合铜图案（27.3μΩ·cm），其电阻率与块状铜（1.68μΩ·cm）相当。 (C) 2015 Elsevier B.V. 保留所有权利。
In this work, the hybrid copper inks with precursor and nanoparticles were fabricated and sintered via flash light irradiation to achieve highly conductive electrode pattern with low porosity. The hybrid copper ink was made of copper nanoparticles and various copper precursors (e.g., copper(II) chloride, copper(II) nitrate trihydrate, copper(II) sulfate pentahydrate and copper(II) trifluoroacetylacetonate). The printed hybrid copper inks were sintered at room temperature and under ambient conditions using an in-house flash light sintering system. The effects of copper precursor weight fraction and the flash light irradiation conditions (light energy and pulse duration) were investigated. Surfaces of the sintered hybrid copper patterns were analyzed using a scanning electron microscope. Also, spectroscopic characterization techniques such as Fourier transform infrared spectroscopy and X-ray diffraction were used to investigate the crystal phases of the flash light sintered copper precursors. High conductivity hybrid copper patterns (27.3 mu Omega cm), which is comparable to the resistivity of bulk copper (1.68 mu Omega cm) were obtained through flash light sintering at room temperature and under ambient conditions. (C) 2015 Elsevier B.V. All rights reserved.