کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5437511 | 1398174 | 2017 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of Er doping on the structural, optical and luminescence properties of pulsed laser deposited Er: BaZrO3 thin films
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of Er doping on the structural, optical and luminescence properties of pulsed laser deposited Er: BaZrO3 thin films Influence of Er doping on the structural, optical and luminescence properties of pulsed laser deposited Er: BaZrO3 thin films](/preview/png/5437511.png)
چکیده انگلیسی
Pure and erbium doped (1, 2, 3 and 5Â at%) Barium zirconate (BZE) thin films have been deposited on Si (0 0 1) substrate via pulsed laser deposition using 100Â mJ Nd: YAG laser operated at second harmonics (532Â nm). Er doping significantly affects the surface morphology, microstructure and optical properties of grown thin films. All the films exhibit cubic BaZrO3 structure and are polycrystalline in nature as extracted from XRD data. The optical band gap energies (3.75-3.63Â eV) of doped (1, 2, 3, and 5Â at%) BZE thin films are found to be less than that of pure BZO film (4.03Â eV). PL spectra, excited at 328Â nm, mainly consist of violet-blue (412Â nm) and green (523-543Â nm) emissions for all the doped films. The green emission increases with the increase in Er doping upto 3Â at% and then concentration quenching effect appears at 5Â at%. It is noted that the relative intensity of PL emission and the optical band gap can be tuned by varying Er concentration to alter the properties of the phosphor. The emission peaks in photoluminescence spectra makes the Er: BZO films potential candidates to be used in optoelectronic devices such as light emitting diodes (LEDs).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 12162-12166
Journal: Ceramics International - Volume 43, Issue 15, 15 October 2017, Pages 12162-12166
نویسندگان
Shariqa Hassan Butt, M.S. Rafique, Shazia Bashir, Usman Ilyas, K. Siraj, M.S. Awan, Khaliq Mehmood, M. Rafique, Amina Afzal,