Structural and fluorescence properties were investigated for different concentrations of Ho³⁺ ions doped silica titania nano-composite thin films. These films were deposited on glass substrates at two different annealing temperatures 300 and 500 C for 3 h.The obtained films were transparent, smooth and adhesive to the substrate glass surface. The crystallite sizes were in the nano-scale phase with values ranged from 15 to 20 nm. The average thin film thickness was found to be equal to about 1.7 μm. Blue, red and green up-conversion emissions are detected using 808 nm laser diode. The highest emission bands were observed in the doped film with 0.4 mol% of Ho³⁺ ions. The prepared thin films could be considered promising candidates for higher efficiency up-down shifting solar cell, photonic, photo-catalytic and optical sensor applications.

研究了不同浓度的 Ho ³⁺离子掺杂二氧化硅二氧化钛纳米复合薄膜的结构和荧光特性。将这些薄膜在玻璃基板上以 300 和 500 ℃ 两种不同的退火温度沉积 3 小时。所得薄膜透明、光滑并粘附在基板玻璃表面上。微晶尺寸处于纳米级阶段，其值范围为 15 至 20 nm。的平均薄膜厚度被发现是等于约1.7 μ米。使用 808 nm 激光二极管检测蓝色、红色和绿色上转换发射。在含有 0.4 mol% Ho ³⁺的掺杂薄膜中观察到最高的发射带离子。制备的薄膜可以被认为是用于更高效率上下移位太阳能电池、光子、光催化和光学传感器应用的有希望的候选者。