Back to Search
Start Over
Near to Long-Wave Infrared Mercury Chalcogenide Nanocrystals from Liquid Mercury
- Source :
- Journal of Physical Chemistry C, Journal of Physical Chemistry C, American Chemical Society, 2020, ⟨10.1021/acs.jpcc.0c01255⟩, The Journal of Physical Chemistry C, Journal of Physical Chemistry C, 2020, ⟨10.1021/acs.jpcc.0c01255⟩
- Publication Year :
- 2020
- Publisher :
- HAL CCSD, 2020.
-
Abstract
- International audience; HgTe nanocrystals are currently the most promising colloidal material for infrared detection, combining broadly tunable infrared absorption and photoconductive properties. Current synthesis leads to a limited amount of material and relies on a highly toxic water-soluble form of Hg. Here, we explore the possibility of using Hg thiolate as Hg source and demonstrate that the latter can be formed in situ from liquid Hg. The developed protocol allows large masses (7 g) and highly concentrated (100 g/L) synthesis, which is a step forward for the transfer of this material towards industry. The transport properties of the material have also been investigated and we observe a transition from p to n-type with size. We observe that the threshold of the p to n switch depends on the growth method which enables for a given size of nanocrystal the formation of p-n junction. This work has great potential to design infrared sensor with optimized charge dissociation.
- Subjects :
- Materials science
Long wave infrared
Infrared
Chalcogenide
Infrared spectroscopy
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
01 natural sciences
HgTe
nanocrystal
chemistry.chemical_compound
Colloid
Physical and Theoretical Chemistry
infarred
liquid mercury
business.industry
Photoconductivity
[CHIM.MATE]Chemical Sciences/Material chemistry
021001 nanoscience & nanotechnology
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Mercury (element)
General Energy
chemistry
Nanocrystal
Optoelectronics
0210 nano-technology
business
Subjects
Details
- Language :
- English
- ISSN :
- 19327447 and 19327455
- Database :
- OpenAIRE
- Journal :
- Journal of Physical Chemistry C, Journal of Physical Chemistry C, American Chemical Society, 2020, ⟨10.1021/acs.jpcc.0c01255⟩, The Journal of Physical Chemistry C, Journal of Physical Chemistry C, 2020, ⟨10.1021/acs.jpcc.0c01255⟩
- Accession number :
- edsair.doi.dedup.....eed8bffb2b77bd268afa84cccf23cbe4