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One‐Dimensional Quantum Confinement in Electrodeposited PbS Nanocrystalline Semiconductors
Author(s) -
Nanda K. K.,
Sahu S. N.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200102)13:4<280::aid-adma280>3.0.co;2-t
Subject(s) - lead sulfide , materials science , quantum dot , nanocrystalline material , photoluminescence , potential well , semiconductor , band gap , nanoparticle , optoelectronics , nanotechnology , nanocrystal , absorption (acoustics) , sulfide , composite material , metallurgy
The optical properties of lead sulfide semiconducting nanoparticulate thin films with pancake‐like structures are controlled by the lowest dimension of the particles, which is a consequence of 1D quantum confinement. Optical absorption and photoluminescence spectra of the nanoparticles (see Figure) reveal that their bandgap does not change with temperature in contrast to bulk lead sulfide.