锰掺杂对Mn_x_In2S3+x_

Controlling the morphology and optical properties of nanoparticles is crucial for advancing the development of various nanomaterials based functional devices, such as optoelectronic, biomedical and energy storage devices. The current work investigates structural, morphological and optical properties of Mn x In 2 S 3+x (0 ≤ x ≤ 1.0) nanoparticles (NPs) synthesized by hot-injection method. Oleic acid and octadecene served as capping agents and non-coordinating solvents. The incorporation of Mn 2+ ions was evident from the color change from yellow (In 2 S 3 ) to dark brown (MnIn 2 S 4 ). The structural, morphological and optical properties of nanomaterials were characterized using various spectroscopic techniques, like XRD, HR-TEM, XPS, UV-DRS and PL analysis. XRD analysis confirms the formation of cubic In 2 S 3 and MnIn 2 S 4 crystal structures. XPS analysis verified the electronic oxidation states of elements, which are present in MnIn 2 S 4 NPs. In 2 S 3 ( x = 0), and MnIn 2 S 4 ( x = 1.0) nanoparticles exhibits spherical, and flake-like morphologies, which are confirmed by HR-TEM images. UV–vis DRS revealed a blue-shifts with increasing ‘ x ’ concentration from 0 to 1.0. The optical band gap (E g ) range of Mn x In 2 S 3+x (0 ≤ x ≤ 1.0) was found in the range 2.18 and 2.82 eV by Kubelka- Munk plot. In addition, PL emissions shows concentration-dependent emissions with strong broad PL bands centered at 575, 490, and 475 nm. Finally, the luminescent properties of synthesized MnIn 2 S 4 nanomaterial holds significant importance for investigating the potential applications for optoelectronic, bioimaging and energy storage devices.