Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Synthesis and Application of Carbon–Iron Oxide Microspheres’ Black Pigments in Electrophoretic Displays | Nanoscale Res Lett 2010 5 1664-1668 DOI s11671-010-9692-0 NANO EXPRESS Synthesis and Application of Carbon-Iron Oxide Microspheres Black Pigments in Electrophoretic Displays Xianwei Meng Ting Wen Shiwei Sun Rongbo Zheng Jun Ren Fangqiong Tang Received 21 June 2010 Accepted 1 July 2010 Published online 15 July 2010 The Author s 2010. This article is published with open access at Abstract Carbon-iron oxide microspheres black pigments CIOMBs had been prepared via ultrasonic spray pyrolysis of aqueous solutions containing ferrous chloride and glucose. Due to the presence of carbon CIOMBs not only exhibited remarkably acid resistance but also could be well dispersed in both polar solvents and nonpolar solvent. Finally dispersions of hollow CIOMBs in tetrachloroethylene had successfully been applied in electrophoretic displays. Keywords E-paper Pigment Black Carbon Introduction Electrophoretic displays EPDs have been the subject of intense research and development for a number of years 1-5 . In such displays pigments are dispersed as a colloidal suspension in a colored solvent which is placed in a narrow space between two transparent electrodes. By applying an electric field to the suspension the charged pigments can be moved through the fluid. When the field is applied in one direction the pigments move toward the observer and the pixel has the color of the pigments. When the field is applied in the opposite direction the ITO electrode closest to the observer is covered with colored solvent. Just like printed paper EPDs are lightweight flexible and easy to read in all lighting conditions 6-9 . X. Meng T. Wen S. Sun R. Zheng J. Ren F. Tang Laboratory of Controllable Preparation and Application of Nanomaterials Technical Institute of Physics and Chemistry Chinese Academy of Sciences 100190 Beijing People s Republic of China e-mail tangfq@ 0 Springer Above of all they provide an important improvement in the field of power consumption
