Chemically synthesis and characterization of MnS thin films by SILAR method

Yıldırım, Mehmet Ali; Yıldırım, Sümeyra Tuna; Cavanmirza, İlke; Ateş, Aytunç

doi:10.1016/j.cplett.2016.01.048

Cited by 17 publications

(7 citation statements)

References 28 publications

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“…The theoretical value of χ (3) could be calculated and it was much larger than the sum of χ (3) of two separate components. This was consistent with the measured results, indicating that local field effect was one of the significant reasons for NLO property enhanced of NCs materials [32]. Charge transfer (CT) has an important influence on the nonlinearity of NCs.…”

Section: Nlo Property Of Ncssupporting

confidence: 91%

Facile One-Step Synthesis and Enhanced Optical Nonlinearity of Graphene-γMnS

Zhang

et al. 2019

Nanomaterials

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Graphene-γMnS were prepared by facile one-step hydrothermal method. Structures and properties of samples were explored by characterization, and nonlinear optical (NLO) enhancement of nanocomposites (NCs) was fully studied. Nanoparticles and NCs were tested at 532 nm by a Z-scan technique. With γMnS attached in G layers, NLO susceptibility of graphene-γMnS was greatly improved under single-pulse laser irradiation compared with G and γMnS. The nonlinearity enhanced was attributed to local field effect and charge transfer between γMnS and graphene layers. And NLO property enhancement was restricted by non-radiative defects in graphene-γMnS. Exploring the mechanism of nonlinearity enhancement was significant for fabrication of NLO devices. However, the optical nonlinearity decreased first and then increased with further increased addition of GO, because the dispersion of γMnS attached on graphene surface might make density of sp 2 fragment and defects changed. Graphene-γMnS exhibited excellent and tunable NLO performance, illustrating that NCs materials have potential applications in NLO devices. Nanomaterials 2019, 9, 1654 2 of 16 and graphene [12][13][14]. However, there are few reports about NLO performance of graphene-γMnS. In fact, we have previously studied αMnS/rGO without thoroughly investigating the nonlinearity of graphene-γMnS and the mechanism of NLO performance enhanced of NCs [15]. It is necessary to explore NLO responses of graphene-γMnS and its mechanism of enhanced nonlinearity.In this study, graphene-γMnS was synthesized by facile one-step hydrothermal method, and mechanism of NLO enhancement was discussed. Nonlinearity of NCs was controlled by changing amount of GO added, and samples were tested at 532 nm by picosecond (PS) laser pulse. We want to explore whether graphene-γMnS had potential applications in optical communication, optical limiter, and all-optical switch. Experiments Synthesis of Graphene Oxide ( GO) and Graphene-γMnSGO was prepared by improved Hummer method [16]. Firstly, graphite powder was oxidized to GO by KMnO 4 and 98% H 2 SO 4 . Then, a solution was mixed with H 2 O 2 and the mixture was washed several times with deionized water to remove impurities. Finally, products were dried at 45 • C for 48 h in vacuum drying oven. Improved Hammer method increased generation efficiency and oxidation degree of GO. Furthermore, this method could effectively prevent generation of toxic gases which caused harm to human body. High efficiency, high quality, and no toxicity in GO synthesis were important for large-scale production of GO.Graphene-γMnS was prepared by facile one-step hydrothermal method. The synthesis process of NCs was shown in Figure 1. Firstly, GO was dispersed in ethylene glycol. Secondly, TAA and MnCl 2 ·4H 2 O were added to GO suspension. After half-an-hour stirring, the solution was transferred to Teflon-lined stainless-steel autoclave and reacted at 170 • C for 6 h. The reaction temperature in our previous study was 190 • C and product was different [15]. Then, products wer...

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Section: Nlo Property Of Ncssupporting

confidence: 91%

Facile One-Step Synthesis and Enhanced Optical Nonlinearity of Graphene-γMnS

Zhang

et al. 2019

Nanomaterials

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“…Subsequent cycles led to the aggregation of nanoparticles to nanoclusters. The reaction mechanism for the formation of MnS nanoclusters using the SILAR method may be explained as follows: 43,44 Mn(NO 3 ) 2 (102), and (202) planes of the hexagonal crystal structure of g-MnS (JCPDS no. 089-4089), respectively.…”

Section: Formation Of Mns Nanoclustersmentioning

confidence: 99%

Modified chemical synthesis of MnS nanoclusters on nickel foam for high performance all-solid-state asymmetric supercapacitors

et al. 2017

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Novel MnS nanoclusters were synthesized on nickel foam (NF) using a successive ionic layer adsorption and reaction (SILAR) method. MnS nanoclusters with different sizes were obtained by varying the number of deposition cycles. The crystal structure, chemical composition, and surface microstructure of the electrodes were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, and high resolution transmission electron microscopy. The electrochemical behavior of the MnS nanoclusters was examined by cyclic voltammetry, galvanostatic charge-discharge, cycling test, and electrochemical impedance spectroscopy. The MnS nanoclusters prepared with 90 SILAR cycles showed the best supercapacitance in a 6 M KOH aqueous electrolyte with a specific capacitance of 828 F g À1 at a scan rate of 5 mV s À1 and cycling stability of 85.2% after 5000 charge-discharge cycles.Moreover, an asymmetric supercapacitor (ASC) was assembled with the as-prepared MnS electrode on NF as the positive electrode, hydrothermally prepared reduced graphene oxide (rGO) on NF as the negative electrode, and PVA-KOH gel as the electrolyte. The MnS@NF//rGO@NF ASC showed excellent electrochemical performance with maximum energy and power densities of 34.1 W h kg À1 and 12.8 kW kg À1, respectively. The ASC also showed a capacitive retention of 86.5% after 2000 charge-discharge cycles, highlighting its practical application for energy storage.

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“…In recent years, the metal chalcogenide-based thin films have as attracted much attention of researchers depending on their important applications in different fields such as sensors, solar cells, photoconductors, optical mass memories, optical filters, antireflection coating, detectors and diodes [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, the characteristics of thin films and their potential applications depend on the film thickness which is closely interrelated to grain size, grain boundary, orientation, and crystallinity of the constituents of the film [2,[10][11][12]. In addition, sulfide precipitation process has some obvious compensation for metal removal counting the lower solubility of metal sulfide precipitates.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of chemically deposited copper–manganese sulfide thin films

2020

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Highly transparent crystalline CuMnS thin films were deposited on the glass substrate by uncomplicated and low-cost chemical bath deposition (CBD) method at different bath temperatures (50-90 °C). The structural, optical, electrical properties of as-synthesized CuMnS thin films have been investigated. The effect of bath temperature on the structure and morphological properties of CuMnS thin films had determined using XRD, SEM, and EDAX analyses. The prepared thin films at 50 °C and 90 °C consisted entirely of nanocrystalline CuS/MnS composite and CuMnS solid solution, respectively, with hexagonal structure. The results confirm that the crystallite size increased with increasing the bath temperature due to the incorporation of Cu species in the MnS lattice. Copper-manganese sulfide thin films have lesser particle sizes at different bath temperature as shown in SEM images. However, it shows spherical and rod-like structure with little agglomeration. EDAX analysis indicates that the deposited thin films contain Cu, Mn, and S ions without any impurities confirming their purity. UV-Vis-NIR, spectral, and electrical DC measurements were carried out to describe the optical and electrical characteristics of the as-synthesized thin films. UV-Visible spectroscopy shows red shift in the optical band gap with different bath temperatures. The electrical conductivity of different films with increasing the temperature from 298 to 473 K was determined. However, the increment in the bath temperature resulted in an increase in the conductivity of films. This increase could be credited to the film density and shadowing effects. The as-deposited films can be predictable to be useful in sunscreens, solar cells, and electro-optical devices.

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Chemically synthesis and characterization of MnS thin films by SILAR method

Cited by 17 publications

References 28 publications

Facile One-Step Synthesis and Enhanced Optical Nonlinearity of Graphene-γMnS

Facile One-Step Synthesis and Enhanced Optical Nonlinearity of Graphene-γMnS

Modified chemical synthesis of MnS nanoclusters on nickel foam for high performance all-solid-state asymmetric supercapacitors

Fabrication and characterization of chemically deposited copper–manganese sulfide thin films

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