Molybdenum disulfide (MoS2), as a kind of transition metal dichalcogenide, has been widely studied for its excellent compatibility with most of inorganic nanomaterials. Nevertheless, its microscale and agglomeration limit the performance severely. Therefore, the special structure of V-MoS2 has drawn a lot of interest, which can not only reduce the size of MoS2 nanosheets but also improve the valence electron structure of the materials. In this work, SrTiO3@MoS2 composite nanofibers were synthesized by the simple electrospinning and hydrothermal method, and it was applied as a novel material for photodetector. SEM, TEM, EDX, XRD, I-T curves, and EIS analysis were used to study the structure and properties of the prepared SrTiO3@MoS2 composite nanofibers. Simulating under sunlight at a potential of 1.23 V, the prepared composite materials exhibited a superior photoelectric performance of photocurrent density of 21.4 μA and a resistance of 2.3 Ω. These results indicate that the composite of SrTiO3 nanofiber adhered with V-MoS2 has a stable composite structure, good electrical conductivity, and photoelectric sensitivity and is a suitable material for photodetectors. This work provides new ideas for the preparation of self-assembled materials and their application in photodetectors.

中文翻译：

---

用于优异光电探测器应用的 SrTiO3@MoS2 复合纳米纤维的简便制备

二硫化钼（MoS2）作为一种过渡金属二硫属化物，因其与大多数无机纳米材料的良好相容性而被广泛研究。然而，其微尺度和团聚严重限制了性能。因此，V-MoS2 的特殊结构引起了很多人的兴趣，它不仅可以减小 MoS2 纳米片的尺寸，还可以改善材料的价电子结构。在这项工作中，通过简单的静电纺丝和水热法合成了 SrTiO3@MoS2 复合纳米纤维，并将其用作光电探测器的新型材料。SEM、TEM、EDX、XRD、IT曲线和EIS分析用于研究制备的SrTiO3@MoS2复合纳米纤维的结构和性能。在 1.23 V 电位的阳光下模拟，制备的复合材料表现出优异的光电性能，光电流密度为 21.4 μA，电阻为 2.3 Ω。这些结果表明，SrTiO3 纳米纤维与 V-MoS2 粘附的复合材料具有稳定的复合结构、良好的导电性和光电灵敏度，是一种适用于光电探测器的材料。这项工作为自组装材料的制备及其在光电探测器中的应用提供了新的思路。