Indium(III) selenide

Indium(III) selenide is a compound of indium and selenium. It has potential for use in photovoltaic devices and it has been the subject of extensive research. The two most common phases, α and β, have a layered structure, while γ is a "defect wurtzite structure." In all, there are five known forms (α, β, γ, δ, κ).[1] The α- β phase transition is accompanied by a change in electrical conductivity.[2] The band-gap of γ-In2Se3 is approximately 1.9 eV. The crystalline form of a sample can depend on the method of production, for example thin films of pure γ-In2Se3 have been produced from trimethylindium, InMe3, and hydrogen selenide, H2Se, using MOCVD techniques.[3] A synthetic procedure to encapsulate single layer β-In2Se3 nanoribbons inside carbon nanotubes has been developed.[4] The encapsulated nanoribbons undergo a thermally induced phase change to γ-In2Se3 nanowires following heating to 400 °C.

Indium(III) selenide
Names
IUPAC name
Indium(III) selenide
Other names
indium selenide, indium sesquiselenide
Identifiers
ECHA InfoCard 100.031.821
Properties
In2Se3
Molar mass 466.516 g/mol
Appearance black crystalline solid
Density 5.80 g/cm³
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

See also

General references

Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

Footnotes
  1. Crystal structure of κ-In2Se3. Jasinski, J.; Swider, W.; Washburn, J.; Liliental-Weber, Z.; Chaiken, A.; Nauka, K.; Gibson, G. A.; Yang, C. C. Applied Physics Letters, Volume 81, Issue 23, id. 4356 (2002) doi:10.1063/1.1526925
  2. Some Electrical and Optical Properties of In2Se3 D. Bidjin, S. Popovi , B. Elustka Physica Status Solidi A Volume 6, Issue 1 , Pages 295 – 299 doi:10.1002/pssa.2210060133
  3. Growth of single-phase In2Se3 by using metal organic chemical vapor deposition with dual-source precursors Chang, K. J.; Lahn, S. M.; Chang, J. Y. Applied Physics Letters, Volume 89, Issue 18, id. 182118 (3 pages) (2006). doi:10.1063/1.2382742
  4. Subnanometer-Wide Indium Selenide Nanoribbons Cull, W. J.; Skowron, S. T.; Hayter, R.; Stoppiello, C. T.; Rance, G. A.; Biskupek, J.; Kudrynskyi, Z. D.; Kovalyuk, Z. D.; Allen, C. S.; Slater, T. J. A.; Kaiser, U.; Patanè, A.; Khlobystov, A. N. ACS Nano, Volume 17, Issue 6, Pages 6062-6072, doi:10.1021/acsnano.3c00670
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