Abstract:The size and composition of colloidal lead sulfide (PbS)
quantum
dots (QDs) are closely related to their optoelectronic properties,
such as the band structure, carrier transportation, resistivity toward
surface oxidation, etc., and hence would greatly affect the device
performance. In this work, we developed a simple electrochemical methodology
for probing the microscopic composition of the PbS QDs capped with
oleic acid (OA). Cathodic and anodic voltammetry of PbS-OA QDs dropcast
onto an electrode surface cor… Show more
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