As a newly discovered member of the tungstate family, InWO₄ hollow nanospheres with a monoclinic wolframite structure were synthesized successfully. The crystal phase of InWO₄ was investigated via a combination of CASTEP geometric optimization and experimental simulation. InWO₄ has a space group of P2/c with two InWO₄ formula units per unit cell. The optimized cell dimensions are a = 5.16 Å, b = 5.97 Å, and c = 5.23 Å, with α = 90°, β = 92.11°, γ = 90°, giving a unit cell volume of 161.10 ų, which is consistent with the experimental measurements. More importantly, InWO₄ was a promising host material for different Ln³⁺ (Ln = Eu and Yb/Er) ions. For InWO₄:Yb³⁺/Er³⁺ excited at 980 nm, transitions from the ⁴G_11/2 (384 nm), ²H_9/2 (411 nm), and ⁴F_7/2 (487 nm) levels to the ground state (⁴I_15/2) of Er³⁺ were observed. In addition to the aforementioned properties, the InWO₄ hollow nanospheres can be used to improve the performance of dye-sensitized solar cells, which is chiefly attributed to theirlight scattering.

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作为钨酸盐家族的新成员，成功合成了具有单斜晶钨铁矿结构的InWO ₄中空纳米球。通过将CASTEP几何优化和实验模拟相结合，研究了InWO ₄的晶相。InWO ₄具有一个P 2 / c的空间组，每个像元具有两个InWO ₄公式单位。所述优化的小区尺寸是一个= 5.16埃，b = 5.97埃，c ^ = 5.23埃，与α = 90°，β = 92.11°，γ = 90°，得到的161.10埃的晶胞体积³，与实验测量结果一致。更重要的是，InWO ₄是用于不同Ln ³⁺（Ln = Eu和Yb / Er）离子的有前途的基质材料。对于在980 nm激发的InWO ₄：Yb ³⁺ / Er ³⁺，从⁴ G _11/2（384 nm），² H _9/2（411 nm）和⁴ F _7/2（487 nm）能级跃迁观察到Er ³⁺的基态（⁴ I _15/2）。除了上述特性外，InWO ₄ 中空纳米球可用于提高染料敏化太阳能电池的性能，这主要归因于其光散射。

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