Microstructure and photoluminescence of MoS 2 decorated ZnO nanorods

Optical Properties of 1D ZnO/MoS\(_2\) Heterostructures Synthesized by Thermal Evaporation Method

“…Similarly, the presence of MoS 2 on the ZnO surfaces improved the absorption capability of light ranging from UV to the visible region [12] and the separation between charge carriers and their lifetimes [8]. More interestingly, the 2D MoS 2 decorated with ZnO nanorods exhibited new UV and visible emissions [8]. Furthermore, theoretical calculations indicated that the MoS 2 structure could be tunable by changing the crystal surface of ZnO [2].…”

“…For example, there was a significant enhancement in the photoluminescence intensity of the MoS 2 monolayer when ZnO rods were grown on its surface [13]. Similarly, the presence of MoS 2 on the ZnO surfaces improved the absorption capability of light ranging from UV to the visible region [12] and the separation between charge carriers and their lifetimes [8]. More interestingly, the 2D MoS 2 decorated with ZnO nanorods exhibited new UV and visible emissions [8].…”

“…In this structure, while atoms are strongly bonded in the same layer, atoms in neighbored layers only show a weak Van der Waals force [9]. Compared with MoS 2 bulk structures, 2D MoS 2 structures exhibit some unique features, including strong luminescence and magnetic properties [8,9]. Hence, MoS 2 nanomaterials are extensively applied in electronic and optoelectronic technology [1].…”

“…In recent years, transition metal sulfides have been widely investigated in various applications, such as catalysts [5], batteries [6], optoelectronic devices [7], etc. Among them, MoS 2 material is attracting worldwide scientists because its layered structure is similar to graphene, and the difference between the bandgap of hexagonal monolayer (1.9 eV [8]) and that of MoS 2 bulk (1.23 eV [9]). In this structure, while atoms are strongly bonded in the same layer, atoms in neighbored layers only show a weak Van der Waals force [9].…”

“…Furthermore, theoretical calculations indicated that the MoS 2 structure could be tunable by changing the crystal surface of ZnO [2]. Until now, ZnO/MoS 2 heterostructures have been mainly fabricated by "liquid exfoliation" [14], a hydrothermal technique [15], or equipped with an evaporation process [8]. ZnO/MoS 2 core-shell structures [16] or heterostructures [10] could be obtained by different methods [17]; however, these structures synthesized by a facile evaporation method and the influence of structural morphology on their optical properties have not been reported yet.…”