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Hot‐Injection Synthesis of PbE (E= S, Se) Nanoparticles from Dichalcogenoimidophosphinato Lead (II) Complexes
Author(s) -
Boadi Nathaniel O.,
Saah Selina A.,
Helliwell Madeleine,
Awudza Johannes A. M.
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201903649
Subject(s) - oleylamine , nanoparticle , band gap , absorption (acoustics) , materials science , absorption spectroscopy , crystal (programming language) , crystal structure , diffraction , crystallography , single crystal , analytical chemistry (journal) , chemistry , nanotechnology , optics , optoelectronics , organic chemistry , physics , computer science , composite material , programming language
Abstract Dichalcogenoimidodiphoshinato lead complexes, [Pb((EP i Pr 2 ) 2 N) 2 ] (E=S, Se) have been synthesized and characterized. The crystal structure of [Pb((SeSP i Pr 2 ) 2 N) 2 ]), has been solved by single‐crystal X‐ray crystallography and reported. These complexes have been used as single‐source precursors to synthesise PbS and PbSe nanoparticles by hot‐injection method in an oleylamine/trioctylphosphine mixture. Powder X‐ray diffraction (p‐XRD) studies indicate that the nanoparticles produced are cubic. The optical band gaps estimated from the absorption spectrum fitting curve indicate significant tuning of the bulk band gap, blue shifting towards the visible region of the electromagnetic spectrum.