Microwave-assisted synthesis of flower-like PbS crystals

Sun, Jiquan; Shen, Xiaoping; Guo, Lijun; Liu, Qi

doi:10.1016/j.physe.2009.04.030

Cited by 24 publications

(9 citation statements)

References 18 publications

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“…Several groups have reported rod-or nanocube-shaped PbS using ethylenediamine as solution, however, there is no peony-like result [9][10][11]. Although several groups have reported the formation of flower-like PbS crystals [12][13][14][15][16][17][18], detailed observation reveals that those ''flowers'' are quite different from ours. The main difference lies in the morphology and arrangement.…”

Section: Introductioncontrasting

confidence: 67%

“…The flowers reported here are peony-like, which directly and stably grew on or rooted in the Pb substrate on a large scale to form a film with a three-dimension (3D) surface structure. As comparison, the previous reported flowers generally had four, six or even more tower-like petals, which usually did not have any arrangements and formed powder without substrates [12][13][14][15].…”

Section: Introductionmentioning

confidence: 88%

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Perfect peony-like PbS films in situ synthesized on flexible lead foils

Fan

Wang

Zheng

et al. 2012

Materials Research Bulletin

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Section: Introductioncontrasting

confidence: 67%

Section: Introductionmentioning

confidence: 88%

Perfect peony-like PbS films in situ synthesized on flexible lead foils

Fan

Wang

Zheng

et al. 2012

Materials Research Bulletin

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“…A blend of these extraordinary properties makes PbS a very promising candidate for electroluminescent devices (Wang et al 1987). Recent approaches for the synthesis of PbO and PbS nanostructures include sonochemical methods, thermal decomposition, self-organization (Leontidis 2003), hydrothermal synthesis (Li et al 2009), homogeneous hydrolysis (Li et al 2007), electro deposition (Sharon et al 1997), and microwave heating (Ding et al 2003;Sun et al 2009). Utilization of PbO and PbS nanostructures for potential applications is strongly subjected to their thermal stability in air and inert atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Thermal stability of lead sulfide and lead oxide nano-crystalline materials

2017

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In this study, nano-crystalline lead sulfide (PbS) and lead oxide (PbO) were synthesized using hassle-free and cost-effective chemical route. Lead oxalate (PbC 2 O 4 ) precursor was thermally decomposed to obtain the nanocrystalline PbO, while PbS nanoparticles were synthesized by microwave irradiation on a mixture of PbC 2 O 4 precursor and sodium thiosulfate. Resulting materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy, ultraviolet-visible (UV-Vis) spectrophotometry, differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). XRD confirmed the tetragonal structure for PbO and face-centered cubic for PbS with average crystallite sizes varying from 20 to 30 nm for both materials. From UV-Vis spectra, direct band gap energies were calculated to be 2.51 and 2.23 eV for PbO and PbS, respectively. Various decomposition stages during heat treatment of PbO and PbS, as revealed by TGA/DSC, are discussed in detail.

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“…These novel properties make use of them in the photonic and optical switching device application. PbS nanoparticles can be synthesized in different methods, such as solvothermal method, microwave assisted heating, wet chemical route and micro emulsion technique, etc., [13][14][15][16]. Among these methods, wet chemical route is considered as a viable method for large scale production and inexpensive when compared to other methods.…”

Section: Introductionmentioning

confidence: 99%