A study of PbS nanoparticle synthesis via sulfur powder

Gen Long; Kenneth Sabalo; Raheeb Alsaidi; Michael Beattie; Blawal Chaudhry; Mohammad Khan; Juhayer Uddin; Mostafa Sadoqi; Gen Long; Kenneth Sabalo; Raheeb Alsaidi; Michael Beattie; Blawal Chaudhry; Mohammad Khan; Juhayer Uddin; Mostafa Sadoqi

doi:10.3934/matersci.2017.2.515

AIMS Materials Science

2017, Volume 4, Issue 2: 515-521. doi: 10.3934/matersci.2017.2.515

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A study of PbS nanoparticle synthesis via sulfur powder

Department of Physics, St. John’s University, Jamaica, NY 11439, USA

Received: 09 January 2017 Accepted: 28 March 2017 Published: 30 March 2017

PbS nanoparticles (NPs) were synthesized by the hot-injection solution-phase method using sulfur powder as precursor. Pb-precursor (446 mg PbO) was dissolved with 1.5 ml oleic acid in 15 ml 1-octadecene (ODE) solvent inside a four-neck flask under N₂ atmosphere and nucleated at 120 °C for half an hour. S-precursor (S powder), dissolved in a mixture of 3 ml ODE and 1 ml Oleylamine, was then injected swiftly by a syringe into the flask with well-dissolved Pb-precursor. The growth time varied from 10 minutes to a few hours and growth temperature was maintained at from 90 to 120 °C after injection, which would result in nanoparticles of different sizes from 5 to 10 nm. The synthesized PbS NPs were characterized by TEM, XRD, and UV-Vis-NIR spectrometer. The morphology as well as absorption spectra were found to be highly sensitive to the synthesis conditions. The XRD spectra showed that the structures were less sensitive to synthesis conditions.
- synthesis,
- nanoparticles,
- hot-injection,
- characterization,
- lead sulfide,
- sulfur powder
Citation: Gen Long, Kenneth Sabalo, Raheeb Alsaidi, Michael Beattie, Blawal Chaudhry, Mohammad Khan, Juhayer Uddin, Mostafa Sadoqi. A study of PbS nanoparticle synthesis via sulfur powder[J]. AIMS Materials Science, 2017, 4(2): 515-521. doi: 10.3934/matersci.2017.2.515

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Abstract

PbS nanoparticles (NPs) were synthesized by the hot-injection solution-phase method using sulfur powder as precursor. Pb-precursor (446 mg PbO) was dissolved with 1.5 ml oleic acid in 15 ml 1-octadecene (ODE) solvent inside a four-neck flask under N₂ atmosphere and nucleated at 120 °C for half an hour. S-precursor (S powder), dissolved in a mixture of 3 ml ODE and 1 ml Oleylamine, was then injected swiftly by a syringe into the flask with well-dissolved Pb-precursor. The growth time varied from 10 minutes to a few hours and growth temperature was maintained at from 90 to 120 °C after injection, which would result in nanoparticles of different sizes from 5 to 10 nm. The synthesized PbS NPs were characterized by TEM, XRD, and UV-Vis-NIR spectrometer. The morphology as well as absorption spectra were found to be highly sensitive to the synthesis conditions. The XRD spectra showed that the structures were less sensitive to synthesis conditions.

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