Designing the morphology of PbS nanoparticles through a single source precursor method

Mubiayi, Kalenga P.; Revaprasadu, Neerish; Garje, Shivram S.; Moloto, Makwena J.

doi:10.1016/j.jscs.2017.02.002

Cited by 20 publications

(15 citation statements)

References 20 publications

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“…Furthermore, the observed narrow peaks in the obtained XRD plot agree with the estimated average size of the particle obtained in the TEM images, indicating a large size due to the quick depletion of the precursors at elevated temperature, prompting the Ostwald ripening process, in which larger particles grow at the expense of smaller particles [3,10]. Varied morphologies have been reported for PbS nanoparticles derived from single source precursors and this is predominantly influenced by the temperature of thermolysis and the precursor used [21]. Akhtar et al [1] reported the thermolysis of some derivatives of dialkyldithiocarbamato lead(II) in oleylamine at 60 • C and 80 • C, which resulted in the formation of almost spherical and cubic PbS nanoparticles with the same precursor.…”

Section: Morphology Of the Synthesized Pbs Nanoparticlessupporting

confidence: 75%

PbS Nanoparticles Prepared Using 1, 10-Phenanthroline Adduct of Lead(II) Bis(N-alkyl-N-phenyl dithiocarbamate) as Single Source Precursors

Adeyemi

Onwudiwe

2020

Molecules

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Dithiocarbamate complexes have remained prominent as single source precursors for the synthesis of clean metal sulfide nanoparticles. This study reports the synthesis of lead sulfide (PbS) nanoparticles using some novel complexes of 1, 10-phenanthroline lead(II) bis(N-alkyl-N-phenyl dithiocarbamate), represented as [Pb(L1)2phen] (1) and [Pb(L2)2phen] (2) (where L1 = bis(N-ethyl-N-phenyldithiocarbamate; L2 = bis(N-butyl-N-phenyldithiocarbamate); phen = 1, 10 phenanthroline) as a single source precursors. The complexes (1 and 2) were synthesized and characterized using various spectroscopic techniques and elemental analysis. The nanoparticles were synthesized via a solvothermal approach in oleylamine, used as a capping agent, and were given as PbS(1) and PbS(2) from [Pb(L1)2phen] (1) and [Pb(L2)2phen] (2), respectively, which were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), and absorption spectroscopy. The diffraction patterns confirmed the formation of face-centered cubic phase PbS nanoparticles with a preferential growth orientation along the (200) plane. The TEM images showed that PbS(1) were of a spherical morphology, while the morphology of PbS(2) tended to produce short rods. This was due to variation in the functional group on the precursor compounds. This variation also resulted in the different band gap energies found such as 1.148 and 1.107 eV for PbS(1) and PbS(2), respectively, indicating a blue shift from the bulk.

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Section: Morphology Of the Synthesized Pbs Nanoparticlessupporting

confidence: 75%

PbS Nanoparticles Prepared Using 1, 10-Phenanthroline Adduct of Lead(II) Bis(N-alkyl-N-phenyl dithiocarbamate) as Single Source Precursors

Adeyemi

Onwudiwe

2020

Molecules

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“…This process selectively stabilized the (111) face of PbS, resulting in anisotropic growth along the (100) face [37]. Furthermore, the formation of various morphologies in the synthesis of nanoparticles using the single source precursor route has been largely attributed to the size and functional groups of the ligands present in the precursor compounds [23, 38]. Among several other factors, Peng et al.…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted synthesis of PbS nanostructures

Onwudiwe

2019

Heliyon

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The synthesis of PbS nanostructures by microwave irradiation of single source precursor compounds in ethyleneglycol medium is reported. Pb(II) bis( N -ethyl- N -phenyldithiocarbamate) and Pb(II) bis( N -butyl- N -phenyldithiocarbamate) represented as complexes ( 1 ) and ( 2 ) respectively were utilised. The prepared PbS nanostructures were characterized using X-ray diffraction (XRD), Transmission electron microscopy (TEM), and absorption spectroscopy. The results showed that complex ( 1 ) can project the formation of nanorod with (111) basal plane, while ( 2 ) project the formation of nanocube with (001) basal plane. The formation of different morphologies in ethylene glycol may also be due to the selective binding to specific crystallite facets of the PbS through the hydroxyl groups of ethylene glycol. In the nanorod, the selective stabilization of the (111) face of PbS, resulted in anisotropic growth along the (100) face. The high resolution TEM images showed distinct lattice fringes which confirmed the crystallinity of the nanostructures. The band gap energies were obtained as 1.10 and 1.12 eV for the nanorods and nanocubes respectively, a significant blue shift from the bulk value (0.4 eV) which could be ascribed to quantum confinement effect. The result established the significant effect of the precursor type on the morphologies of the PbS.

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“…The XRD patterns of the prepared PbS nanoparticles for 300 °C and 360 °C of calcination temperature are shown in Figure 2 . It could be seen that both synthesized nanoparticles have a similar X-ray diffraction pattern including the same indices and the pattern corresponds to cubic PbS (PDF number 05-0592) [ 39 , 40 ]. However, the peak intensity along the (200) plane is higher for 360 °C of calcination temperature indicating that a better quality PbS nano-particle could be achieved via this process.…”

Section: Resultsmentioning

confidence: 99%

Green Synthesis of Lead Sulphide Nanoparticles for High-Efficiency Perovskite Solar Cell Applications

et al. 2022

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In this study, lead sulfide (PbS) nanoparticles were synthesized by the chemical precipitation method using Aloe Vera extract with PbCl2 and Thiourea (H2N-CS-NH2). The synthesized nanoparticles have been investigated using x-ray diffraction (XRD), UV-Vis, energy-dispersive x-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). XRD and TEM results confirm that the films are in the cubic phase. The crystallite size, lattice constant, micro-strain, dislocation density, optical bandgap, etc. have been determined using XRD and UV-Vis for investigating the quality of prepared nanoparticles. The possible application of these synthesized nanoparticles in the solar cells was investigated by fabricating the thin films on an FTO-coated and bare glass substrate. The properties of nanoparticles were found to be nearly retained in the film state as well. The experimentally found properties of thin films have been implemented for perovskite solar cell simulation and current-voltage and capacitance-voltage characteristics have been investigated. The simulation results showed that PbS nanoparticles could be a potential hole transport layer for high-efficiency perovskite solar cell applications.

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Designing the morphology of PbS nanoparticles through a single source precursor method

Cited by 20 publications

References 20 publications

PbS Nanoparticles Prepared Using 1, 10-Phenanthroline Adduct of Lead(II) Bis(N-alkyl-N-phenyl dithiocarbamate) as Single Source Precursors

PbS Nanoparticles Prepared Using 1, 10-Phenanthroline Adduct of Lead(II) Bis(N-alkyl-N-phenyl dithiocarbamate) as Single Source Precursors

Microwave-assisted synthesis of PbS nanostructures

Green Synthesis of Lead Sulphide Nanoparticles for High-Efficiency Perovskite Solar Cell Applications

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