Sivakumar Sri, van Veggel Frank C J M, Raudsepp Mati
Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6.
J Am Chem Soc. 2005 Sep 14;127(36):12464-5. doi: 10.1021/ja052583o.
White light was generated from a single silica thin film made with Yb0.75La0.2Eu0.05F3, La0.45Yb0.5Er0.05F3, and La0.75Yb0.2Tm0.05F3 nanoparticles by exciting with a single source near-infrared light (980 nm CW diode laser). Eu3+ and Tm3+ ions are responsible for red and blue emission, respectively. Er3+ ion is responsible for green as well as red emission. The Commission Internationale de l'Eclairage (CIE) coordinates of the resulting light were easily adjusted by controlling the concentration of Ln3+ (Eu3+, Er3+, Tm3+) ions in the nanoparticles as well as the concentration of Ln3+-doped nanoparticles in the sol-gel thin layer.
通过用单一光源近红外光(980nm连续波二极管激光器)激发,由Yb0.75La0.2Eu0.05F3、La0.45Yb0.5Er0.05F3和La0.75Yb0.2Tm0.05F3纳米颗粒制成的单个二氧化硅薄膜产生白光。Eu3+和Tm3+离子分别负责红色和蓝色发射。Er3+离子负责绿色以及红色发射。通过控制纳米颗粒中Ln3+(Eu3+、Er3+、Tm3+)离子的浓度以及溶胶-凝胶薄层中掺杂Ln3+的纳米颗粒的浓度,可以轻松调整所得光的国际照明委员会(CIE)坐标。