Luminescence properties of Eu3+/CDs/PVA composite applied in light conversion film

• Published in: Optical materials 2016-12, Vol.62, p.458-464
• Main Authors: He, Jiangling, He, Youling, Zhuang, Jianle, Zhang, Haoran, Lei, Bingfu, Liu, Yingliang
• Format: Article
• Language: English
• Subjects: CDs; Eu3+/CDs/PVA; Tunable photoluminescence
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2016.10.036

In this work, blue-light-emitting carbon dots (CDs) were composited with red-light-emitting europium ions (Eu3+) solutions under the synergistic reaction of polyvinyl alcohol (PVA) to prepare the light conversion film. The formation mechanism of Eu3+/CDs/PVA film was detailedly discussed. It is the first report that this composite was synthesized through direct recombination of CDs and Eu3+ solutions instead of traditional methods based on Eu3+ coordination compound. Furthermore, tunable photoluminescence property can be successfully achieved by controlling the ratio of CDs to doped Eu3+, this property can meet the variable light component requirements for different species of plants. It is the first report that this composite was synthesized through direct recombination of CDs and Eu3+ solutions instead of traditional methods based on Eu3+ coordination compound. Tunable photoluminescence property can be successfully achieved by controlling the ratio of CDs to doped-Eu3+, this property can meet the variable light component requirements for different species of plants. [Display omitted] •It is the first report that direct recombination of CDs and Eu3+ solutions.•Tunable photoluminescence can meet the variable light component requirements for different species of plants.•CDs can be mixed with Eu3+ solutions under the reaction of PVA to prepare the light conversion film.