A New Approach to the Synthesis of Lead Sulfide Colloidal Quantum Dots in a Mixture of Oleylamine and Oleic Acid

Abstract

A new approach to the synthesis of lead sulfide colloidal quantum dots has been proposed, which uses a mixture of oleic acid and oleylamine. Colloidal quantum dots of PbS with a long-wavelength excitonic peak in the range from 1.7 to 2.05 μm have been obtained. The effects of temperature, reaction time, and the ratio of lead and sulfur precursors on the spectral characteristics of PbS quantum dots obtained have been studied.

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Funding

This work was supported by the Russian Foundation for Basic Research, project no. 18-29-20062; carried out within the program of the state assignment AAAA-A19-119070790003-7; and also supported by the Government of the Russian Federation, agreement no. 074-02-2018-286.

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Correspondence to I. A. Shuklov.

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Translated by A. Tatikolov

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Shuklov, I.A., Toknova, V.F., Demkin, D.V. et al. A New Approach to the Synthesis of Lead Sulfide Colloidal Quantum Dots in a Mixture of Oleylamine and Oleic Acid. High Energy Chem 54, 183–188 (2020). https://doi.org/10.1134/S0018143920030133

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Keywords:

  • colloidal quantum dots
  • lead sulfide
  • oleylamine
  • green chemistry
  • high-temperature colloidal synthesis