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Quantum Dots: Overcoming the Cut‐Off Charge Transfer Bandgaps at the PbS Quantum Dot Interface (Adv. Funct. Mater. 48/2015)
Author(s) -
ElBallouli Ala'a O.,
Alarousu Erkki,
Kirmani Ahmad R.,
Amassian Aram,
Bakr Osman M.,
Mohammed Omar F.
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201570311
Subject(s) - quantum dot , materials science , charge (physics) , band gap , acceptor , optoelectronics , nanotechnology , condensed matter physics , physics , quantum mechanics
The interfacial electrostatic interaction between the positively‐charged porphyrin and the negatively‐charged quantum dot (QD) surface provides an additional driving force for efficient charge transfer (CT). On page 7435, O.F. Mohammed and co‐workers show the occurrence of an ultrafast CT from small bandgap (>1 eV) and large bandgap (<1 eV) PbS QDs to a molecular acceptor, reaching beyond the previously reported cut‐off CT bandgaps for PbS QDs.