Cost-effective ZnO–Eu3+ films with efficient energy transfer between host and dopant
| Autor: | Avanish Kumar Srivastava, Priyanka Arya, Diksha Choudhary, Archana Singh, Surender Kumar, I. B. Singh |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Photoluminescence Dopant Scanning electron microscope Band gap General Chemical Engineering Doping General Engineering Oxide Analytical chemistry General Physics and Astronomy chemistry.chemical_element chemistry.chemical_compound chemistry General Earth and Planetary Sciences General Materials Science Atomic ratio Europium General Environmental Science |
| Zdroj: | SN Applied Sciences. 2 |
| ISSN: | 2523-3971 2523-3963 |
| DOI: | 10.1007/s42452-020-2670-y |
| Popis: | The present work focuses on the deposition of Europium (Eu3+) incorporated zinc oxide (ZnO) film by a cost effective chemical solution deposition method. ZnO film with varying concentration of Eu3+ ions (2, 3 and 4 atomic percent) were deposited and characterized using different techniques like X-ray diffractogram (XRD), scanning electron microscopy. XRD studies revealed that highly c-axis oriented ZnO films without showing any segregation of europium oxide were obtained at 650 °C. The optical properties were determined using UV–visible spectrophotometry and photoluminescence measurements. UB-visible spectroscopy revealed that Eu3+ doping shifted optical band gap with increase in transparency of the films. The Eu3+ doped film showed intense emission at 614 nm which was attributed to the defect emission from ZnO that gets trapped by Eu3+ ions ultimately leading to 7F2 to 5D0 transition in Eu3+. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink