Characterization of solution-synthesized CdTe and HgTe

Size-selective photoluminescence excitation spectroscopy in CdTe quantum dots

“…Unlike these quantum dots whose luminescence properties have been examined and reviewed with great thoroughness [3][4][5] , cadmium telluride nanocrystals are much less studied although this compound is the basis for development of long wavelength photodetector technologies 6 . CdTe quantum dots prepared by chemical way generally exhibit a significant size distribution that depends upon the synthesis conditions and post-synthesis treatments [7][8][9] . The absorption spectrum of such a quantum dots shows a very broad peak even at low temperature 10 and this broadening leads to an ambiguity in estimating the resonance position.…”

Microwave-assisted polyol method for the preparation of CdSe "nanoballs"

“…Indeed a variety of solution synthetic methods have been developed for the synthesis of nanosized semiconductors. To name just a few: precipitation in homogeneous solution, 4,5 metathesis reactions, 6 and also synthesis in a con®ning medium, like zeolites. 7 Among the various semiconductors, the preparation of selenides has attracted special attention.…”

A simple metalorganic route to organically passivated mercury telluride nanocrystals

“…15 Mullenborn et al reported the reaction between mercury iodide and sodium telluride in methanol, precipitating nanocrystalline HgTe. 16 Only the work by Rogach et al describes the optical properties in any detail. 14 Recently, Higginson et al have reported the preparation of HgS capped with a layer of either Cd or Zn metal giving highly luminescent nanoparticles.…”