Fig. 1From: Air-stable and ultrasensitive solution-cast SWIR photodetectors utilizing modified core/shell colloidal quantum dotsThe characteristics of the synthesized QDs. a Absorption spectra of PbS, PbS/CdS (thin shell), and PbS/CdS (thick shell) QDs in toluene. TEM image and corresponding size histogram of the b PbS QDs, c PbS/CdS (thin shell), and d PbS/CdS (thick shell) QDsBack to article page