Fig. 3From: Polymer Microfibers Incorporated with Silver Nanoparticles: a New Platform for Optical SensingCharacterization process of LiYF4:Yb3+/Er3+ and Ag co-doped microfibers. a XRD of LiYF4:Yb3+/Er3+. b SEM of Ag co-doped microfiber. c TEM Of Ag co-doped microfiber. d EDS of Ag co-doped microfiberBack to article page