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Copper selenide information


Copper selenide
Names
IUPAC name
Copper Selenide
Identifiers
CAS Number
  • 20405-64-5
3D model (JSmol)
  • Interactive image
ECHA InfoCard 100.039.799 Edit this at Wikidata
EC Number
  • 243-796-7
PubChem CID
  • 6914519
UNII
  • 44P3QN57K9
CompTox Dashboard (EPA)
  • DTXSID6066606 Edit this at Wikidata
InChI
  • InChI=1S/2Cu.Se
    Key: KTLOQXXVQYUCJU-UHFFFAOYSA-N
SMILES
  • [Cu].[Cu].[Se]
Properties
Chemical formula
Cu2Se
Molar mass 206.063 g·mol−1
Appearance Dark blue, black
Density 6.84 g/mL[1]
Hazards
GHS labelling:
Pictograms
GHS06: ToxicGHS08: Health hazardGHS09: Environmental hazard
Signal word
Danger
Hazard statements
H201, H331, H373, H410
Precautionary statements
P260, P261, P264, P270, P271, P273, P301+P310, P304+P340, P311, P314, P321, P330, P391, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Copper selenide is an inorganic binary compound between copper and selenium. The chemical formula depends on the ratio between the two elements, such as CuSe or Cu2Se.

The crystalline structure and electronic behavior is determined by its elemental composition.[2] Stoichiometric copper selenide is a zero bandgap material with metal-like behavior.[3] Copper-deficient Cu2-xSe (non-stoichiometric) is an intrinsic p-type semiconductor with direct and indirect bandgap energies in the range of 2.1–2.3 eV and 1.2–1.4 eV, respectively.[4] It is frequently grown as nanoparticles or other nanostructures.[5][6][7]

  1. ^ "Copper (I) selenide". Sigma-Aldrich. Retrieved 12 April 2016.
  2. ^ Lanling, Zhao; Wang, Xiaolin; F. Yun, Frank (5 February 2015). "The Effects of Te2− and I− Substitutions on the Electronic Structures, Thermoelectric Performance, and Hardness in Melt-Quenched Highly Dense Cu2-xSe". Advanced Electronic Materials. 1 (3). doi:10.1002/aelm.201400015. S2CID 137099918. Retrieved 28 June 2021.
  3. ^ Tyagi, Kriti; Gahtori, Bhasker (June 2015). "Enhanced thermoelectric performance of spark plasma sintered copper-deficient nanostructured copper selenide". Journal of Physics and Chemistry of Solids. 81: 100–105. Bibcode:2015JPCS...81..100T. doi:10.1016/j.jpcs.2015.01.018.
  4. ^ C. Singh, Subhash (September 2018). "Structural and compositional control in copper selenide nanocrystals for light-induced self-repairable electrodes". Nano Energy. 51: 774–785. doi:10.1016/j.nanoen.2018.07.020. PMC 6100260. PMID 30177955.
  5. ^ Xiao, Guanjun; Ning, Jiajia; Liu, Zhaoyang; Sui, Yongming; Wang, Yingnan; Dong, Qingfeng; Tian, Wenjing; Liu, Bingbing; Zou, Guangtian (2012). "Solution synthesis of copper selenide nanocrystals and their electrical transport properties". CrystEngComm. 14 (6): 2139. doi:10.1039/c2ce06270d.
  6. ^ Hessel, Colin M.; Pattani, Varun P.; Rasch, Michael; Panthani, Matthew G.; Koo, Bonil; Tunnell, James W.; Korgel, Brian A. (2011-05-10). "Copper Selenide Nanocrystals for Photothermal Therapy". Nano Letters. 11 (6): 2560–2566. Bibcode:2011NanoL..11.2560H. doi:10.1021/nl201400z. PMC 3111000. PMID 21553924.
  7. ^ Patidar, D.; Saxena, N. S. (2012-03-15). "Characterization of single phase copper selenide nanoparticles and their growth mechanism". Journal of Crystal Growth. 343 (1): 68–72. Bibcode:2012JCrGr.343...68P. doi:10.1016/j.jcrysgro.2012.01.026.

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