Green mediated synthesis of lanthanum doped zinc oxide:Study of its structural, optical and latent fingerprint application

• 作者: H.N. Shivananjaiah K. Sailaja Kumari M.S. Geetha
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: SPECTROSCOPY, LUMINESCENCE AND PHOSPHORS
• 页码范围: 1281-1287
• 页数: 7页
• 语种: 英文

摘要

The present paper summarises the synthesis of La3+doped zinc oxide nanoparticles using Aloe vera gel by solution combustion method and the characterization using a powder X-ray diffractometer (PXRD), a transmission electron microscope (TEM), an X-ray photometric spectrometer (XPS), a Raman spec-trometer and their applications in optical devices and latent fingerprinting. PXRD pattern confirms the crystallite size of La3+doped ZnO varies from 13 to 20 nm. Crystallite size varies inversely with doping concentration. Photoluminescence properties are found to be the maximum for 2 mol％ doping con-centration. PL spectra extends the use of ZnO:La3+nanoparticles in blue green LED. These nanoparticles also have superior property as a fluorescent labels in fingerprints.