On the Absorption and Photoluminescence Properties of Pure ZnSe and Co-Doped ZnSe:Eu3+/Yb3+ Crystals

Applied Sciences

Humberto Cabrera¹  Behnaz Abbasgholi-NA¹  Osamah A. Aldaghri²  Khalid Hassan Ibnouf²  Nawal Madkhali² 

[1] Optics Lab, STI Unit, The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy;Physics Department, College of Sciences, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi Arabia;

关键词: ZnSe;    co-doped ZnSe;    rare earths;    Eu³⁺/Yb³⁺;   

DOI  :  10.3390/app12094248

来源: DOAJ

【 摘 要 】

Co-doped Zinc selenide (ZnSe) is a promising material because of a high photoluminescence efficiency and wide spectral range emission in the visible region. In this work, ZnSe and Eu³⁺/Yb³⁺ co-doped ZnSe crystals were grown by the chemical vapour transport method. Photoluminescence and optical measurements revealed the effect of trivalent rare earth Eu³⁺/Yb³⁺ ions on the emission of new lines with enhancement intensity. In the photoluminescence spectrum, some sharp and intense lines were observed that allow for the possibility of covering a broad emission range. Moreover, the optical measurement showed a lower bandgap compared to that of pure ZnSe bulk crystal. This material is suitable for developing optoelectronic devices, which can emit light in the visible and near infrared range with an improved emission efficiency and wide tunability.

【 授权许可】

Unknown