Copper indium gallium (di)selenide (CIGS) is a I-III-VI2semiconductor material composed of copper, indium, gallium, and selenium. The material is a solid solution of copper indium selenide (often abbreviated "CIS") and copper gallium selenide. It has a chemical formula of CuIn1−xGaxSe2, where the value of x can vary from 0 (pure copper indium selenide) to 1 (pure copper gallium selenide). CIGS is a tetrahedrallybonded semiconductor, with the chalcopyrite crystal structure, and a bandgap varying continuously with x from about 1.0 eV (for copper indium selenide) to about 1.7 eV (for copper gallium selenide).
Copper indium gallium selenide
CIGS unit cell. Red = Cu, yellow = Se, blue = In/Ga
CIGS is a tetrahedrallybonded semiconductor, with the chalcopyrite crystal structure. Upon heating it transforms to the zincblende form and the transition temperature decreases from 1045 °C for x = 0 to 805 °C for x = 1.[1]
Applicationsedit
It is best known as the material for CIGS solar cells a thin-film technology used in the photovoltaic industry.[2] In this role, CIGS has the advantage of being able to be deposited on flexible substrate materials, producing highly flexible, lightweight solar panels. Improvements in efficiency have made CIGS an established technology among alternative cell materials.
^ abcdTinoco, T.; Rincón, C.; Quintero, M.; Pérez, G. Sánchez (1991). "Phase Diagram and Optical Energy Gaps for CuInyGa1−ySe2 Alloys". Physica Status Solidi A. 124 (2): 427. Bibcode:1991PSSAR.124..427T. doi:10.1002/pssa.2211240206.
^"DOE Solar Energy Technologies Program Peer Review" (PDF). U.S. department of energy 2009. Retrieved 10 February 2011.
February 11, 2024
copper, indium, gallium, selenide, copper, indium, gallium, selenide, cigs, semiconductor, material, composed, copper, indium, gallium, selenium, material, solid, solution, copper, indium, selenide, often, abbreviated, copper, gallium, selenide, chemical, form. Copper indium gallium di selenide CIGS is a I III VI2 semiconductor material composed of copper indium gallium and selenium The material is a solid solution of copper indium selenide often abbreviated CIS and copper gallium selenide It has a chemical formula of CuIn1 xGaxSe2 where the value of x can vary from 0 pure copper indium selenide to 1 pure copper gallium selenide CIGS is a tetrahedrally bonded semiconductor with the chalcopyrite crystal structure and a bandgap varying continuously with x from about 1 0 eV for copper indium selenide to about 1 7 eV for copper gallium selenide Copper indium gallium selenide CIGS unit cell Red Cu yellow Se blue In GaIdentifiersCAS Number 12018 95 0 CuInSe2 ChemSpider 24774055 Y lt del gt chemspider PropertiesChemical formula CuIn1 xGaxSe2Density 5 7 g cm3Melting point 1 070 to 990 C 1 960 to 1 810 F 1 340 to 1 260 K x 0 1 1 Band gap 1 0 1 7 eV x 0 1 1 StructureCrystal structure tetragonal Pearson symbol tI16 1 Space group I4 2dLattice constant a 0 56 0 58 nm x 0 1 c 1 10 1 15 nm x 0 1 Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references Contents 1 Structure 2 Applications 3 See also 4 ReferencesStructure editCIGS is a tetrahedrally bonded semiconductor with the chalcopyrite crystal structure Upon heating it transforms to the zincblende form and the transition temperature decreases from 1045 C for x 0 to 805 C for x 1 1 Applications editIt is best known as the material for CIGS solar cells a thin film technology used in the photovoltaic industry 2 In this role CIGS has the advantage of being able to be deposited on flexible substrate materials producing highly flexible lightweight solar panels Improvements in efficiency have made CIGS an established technology among alternative cell materials See also editCopper indium gallium selenide solar cells CZTS List of CIGS companiesReferences edit a b c d Tinoco T Rincon C Quintero M Perez G Sanchez 1991 Phase Diagram and Optical Energy Gaps for CuInyGa1 ySe2 Alloys Physica Status Solidi A 124 2 427 Bibcode 1991PSSAR 124 427T doi 10 1002 pssa 2211240206 DOE Solar Energy Technologies Program Peer Review PDF U S department of energy 2009 Retrieved 10 February 2011 Retrieved from https en wikipedia org w index php title Copper indium gallium selenide amp oldid 1113515742, wikipedia, wiki, book, books, library,
