One-step preparation of Cr₂O₃-based inks with long-term dispersion stability for inkjet applications

Abstract

Inkjet printing of functional material has shown a wide range of application in advertzing, OLED display, printed electronics and other specialized utilities that require high-precision, mask-free, direct-writing deposition technique. Nevertheless,...

Fabrication and Characterization of Dielectric ZnCr2O4 Nanopowders and Thin Films for Parallel-Plate Capacitor Applications

“…The 1 F 2g mode at 182 cm −1 is also barely visible, thereby indicating the formation of the ZnCr 2 O 4 spinel structure. In contrast, the bands located around 348 and 550 cm −1 are most likely attributed to the E g and A 1g modes of Cr 2 O 3 [ 30 , 31 ]. This suggests that annealing at 500 °C for 5 h is insufficient for the formation of crystalline ZnCr 2 O 4 nanoparticles, the chemical reaction being incomplete.…”

A light scattering camouflage membrane with similar solar spectrum reflectance to leaves based on a chlorophyll and titanium dioxide composite

“…The Cr 2 O 3 particle has already been used in military camouage materials due to its Chl-like absorption in the visible region, high stability, good migration resistance and low cost. [14][15][16] Whereas, it is not entirely consistent with the selective absorption characteristics of Chl, which results in signicant differences between the reection spectrum of these materials and that of the leaf in the visible region. 4 From the above analysis, it is unnecessary to develop camouage materials by simulating the complex structure of natural leaves.…”

Polymeric Surfactants Bearing Divalent Carboxy Pendants for Stable Color Dispersions with High Redispersibility

“…In contrast, pigment-based inks are more waterproof and UV-resistant than dye-based inks; furthermore, they cause little degradation over time and color bleeding on the printed surface, enabling high-resolution and durable printing . However, pigment-based inks still have issues in long-term dispersion stability . To achieve inkjet printing of ink, it is necessary to disperse water-insoluble dyes or pigments as fine particles in water and maintain the uniform dispersion for a long period of time.…”

“…5 However, pigment-based inks still have issues in long-term dispersion stability. 6 To achieve inkjet printing of ink, it is necessary to disperse water-insoluble dyes or pigments as fine particles in water and maintain the uniform dispersion for a long period of time. Polymeric surfactants or dispersants play a great role in the dispersion of dyes 7 or pigments 8 as well as other application such as coating 9 and food science.…”