Fig. 6
From: Colloidal quantum dots for thermal infrared sensing and imaging
(Reproduced with permission from ref. [40]. Copyright 2018 American Chemical Society)
HgTe CQDs prepared via current state-of-the-art method. a Absorption spectra of HgTe CQDs showing the widest size-tunable absorption. The 200 nm HgTe CQDs absorb up past 60 µm. b, c TEM images of HgTe CQDs using HgBr2 as the Hg precursor. As the temperature increases, the particle size increases and the shapes transition from spherical to tetrahedral. The size dispersion also increases