Effects of gamma radiation on the photoluminescence properties of polycarbonate matrices doped with terbium complex |
| |
| Authors: | P.L. Forster D.F. Parra J. Kai D.M. Fermino H.F. Brito A.B. Lugao |
| |
| Affiliation: | 1. Center of Excellence for Research in Engineering Materials (CEREM), Advanced Manufacturing Institute, King Saud University, P. O. Box 800, Riyadh 11421, Saudi Arabia;2. Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia;3. Materials and Metallurgical Engineering Department, New Mexico Institute of Mining and Technology, Socorro, NM 87801, USA |
| |
| Abstract: | Luminescent films containing terbium complex [Tb(acac)3(H2O)3] (acac=acetylacetonate) doped into a polycarbonate (PC) matrix were prepared and irradiated at low-dose gamma radiation with ratio of 5 and 10 kGy. The PC polymer was doped with 5% (w/w) of the Tb3+ complex. The thermal behavior was investigated by utilization of differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). Changes in thermal stability due to the addition of doping agent into the polycarbonate matrix. Based on the emission spectra of PC:5% Tb(acac)3 film were observed the characteristic bands arising from the 5D4→7FJ transitions of Tb3+ ion (J=0–6), indicating the ability to obtain the luminescent films. Doped samples irradiated at low dose of gamma irradiation showed a decrease in luminescence intensity with increasing of the dose. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
