γ-射线辐照法制备氧化亚锰/石墨烯复合材料及其储锂性能研究

We report a γ-ray irradiation reduction method to prepare MnO/reduced graphene oxide (rGO) nanocomposite for the anode of lithium ion batteries. γ-Ray irradiation provides a clean way to generate homogeneously dispersed MnO nanoparticles with finely tuned size on rGO surface without the use of surfactant. The MnO/rGO composite enables a fully charge/discharge in 2 min to gain a reversible specific capacity of 546 (mA·h)/g which is 45% higher than the theoretical value of commercial graphite anode.     

喷墨打印和旋涂法制备有机电致发光显示器件中空穴注入及发光层的比较研究

比较了喷墨印刷和旋涂PEDOT:PSS薄膜的表面性能,发现喷涂PEDOT:PSS薄膜上印有发射层油墨后,其表面性能有很大差异。在喷墨打印PEDOT:PSS膜的表面上只发现了大量的和类山状的聚合物颗粒。进一步的研究表明,形态的差异源于润湿性的不同。揭示了喷墨打印和旋涂对膜性能的不同影响,从而在喷墨打印PEDOT:PSS膜上构建了更精细的结构。