Here, we report a previously un-reported printed electronics/additive manufacturing (AM) approach to fabricate conductive/resistive features on novel insulating silver–barium strontium titanate (Ag–BST) printed composite films. Ag–BST composite functional ink was formulated by blending a conductive Ag nanoparticle ink and an insulating BST nanoparticle ink. The blending ratio of Ag and BST inks was optimized to obtain the insulating phase after the initial curing and the conductive/resistive phase following selective laser sintering under ambient conditions. Selective laser sintered Ag–BST resistors showed an ohmic behavior and the resistivity could be adjusted by varying the laser sintering parameters, such as the wavelength, power and the rastering speed/pitch of the laser. This insulator to conductor/resistor transitioning Ag–BST ink paves a new path for direct write printed electronics/AM applications. Proofs of concept for potential applications utilizing this functional ink are demonstrated. Also, this Ag–BST ink can be used as a conventional resistive ink for dispensing printers. Thermally sintered Ag–BST resistors showed less than 8% variation in resistance between −50 C and 150 C.

在这里，我们报告了一种以前未报道的印刷电子/增材制造 (AM) 方法，用于在新型绝缘银-钛酸钡锶 (Ag-BST) 印刷复合薄膜上制造导电/电阻特征。Ag-BST 复合功能墨水是通过将导电 Ag 纳米颗粒墨水和绝缘 BST 纳米颗粒墨水混合而成的。优化 Ag 和 BST 油墨的混合比，以获得初始固化后的绝缘相和环境条件下选择性激光烧结后的导电/电阻相。选择性激光烧结 Ag-BST 电阻器表现出欧姆行为，并且可以通过改变激光烧结参数（例如激光的波长、功率和光栅速度/间距）来调整电阻率。这种绝缘体到导体/电阻的过渡 Ag-BST 墨水为直接写入印刷电子/AM 应用铺平了新的道路。演示了使用这种功能性墨水的潜在应用的概念证明。此外，这种 Ag-BST 墨水可用作点胶打印机的传统电阻墨水。热烧结 Ag-BST 电阻器在 -50 C 和 150 C 之间的电阻变化小于 8%。