Abstract
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.
Highlights
Water pollution, greenhouse effect, and fumes are hazardous to human beings, but few people notice that potential light pollution is threatening our health [1,2,3,4]
Characterization of SrTiO3@MoS2. e morphologies of as-prepared materials were obtained by transmission electron microscopy (TEM) and scanning electron microscopy (SEM)
It can be clearly observed that the diameter of fiber reduced to about 300 nm with 10–20 nm aperture gap uniform distributes on the surface. is special morphology is mainly caused by the synergistic effect of F127 and CTAB, which has been studied systematically in the earlier works
Summary
Water pollution, greenhouse effect, and fumes are hazardous to human beings, but few people notice that potential light pollution is threatening our health [1,2,3,4]. E light pollution mainly originated from assimilation lighting and massive use of architectural glass, in the developed region. To solve this problem, photodetector has been widely studied as optoelectronic devices [6,7,8]. Within all kinds of materials of TMDCs, molybdenum disulfide (MoS2) has attracted more and more attention due to its special structure, excellent compatibility with abundant nanoscale materials, and attractive price [11]. E photoelectric performance of MoS2 nanosheets has been improved by building a V-MoS2 structure at the nanoscale and changing MoS2 from a multilayer structure to a single-layer structure. High-quality V-MoS2 structure has a stable reproducible optoelectronic performance and is easy to fabricate.
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