Preparation of Polyimide/Zinc Oxide Nanocomposite Films via an Ion-Exchange Technique and Their Photoluminescence Properties

Figure 8

Room temperature PL spectra of PI/ZnO composite films obtained at 350°C/7 h. The initial Zn²⁺ loadings are (a) 611, (b) 803, and (c) 3960 nmol/cm².