Details

Autor(en) / Beteiligte

• Qu, Enze
• Zhang, Yangyi
• Wang, Lixiang
• Chen, Jiaming
• Li, Dongke
• Zhao, Jingjie
• Xu, Jun
• Chen, Kunji

Titel

Alkaline earth metal ion doping to enhance the light emission from Er3+:SnO2 nanocrystal Co-doped silica films

Ist Teil von

• Physical chemistry chemical physics : PCCP, 2023-07, Vol.25 (27), p.18175-18181

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Alkaline earth metal ions (Mg2+, Ca2+, Sr2+) have been introduced into Er3+:SnO2 nanocrystal co-doped silica thin films fabricated by a sol–gel method combined with a spin-coating technique. It is found that the incorporation of alkaline earth metal ions can enhance the light emission from Er3+ at the wavelength around 1540 nm and the strongest enhancement is observed in samples doped with 5 mol% Sr2+ ions. Based on X-ray diffraction, X-ray photoelectron spectroscopy and other spectroscopic measurements, the improved light emission can be attributed to more oxygen vacancies, better crystallinity and a stronger cross-relaxation process with the introduction of alkaline earth metal ions.