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Anisotropic hole-ma...
Anisotropic hole-mass tensor of CuIn1-xGax(S,Se)(2) : Presence of free carriers narrows the energy gap
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- Persson, Clas (författare)
- KTH,Tillämpad materialfysik
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(creator_code:org_t)
- AIP Publishing, 2008
- 2008
- Engelska.
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 93:7
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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visa färre...
Abstract
Ämnesord
Stäng
- Analysis of the band edges of CuIn1-xGax (S, Se)(2) with x= 0.0, 0.5, and 1.0 reveals that (i) CuIn1-xGaxS2 has larger effective electron m(c) and hole m(v) masses than CuIn1-xGaxSe2; (ii) whereas Ga content affects band curvatures only slightly, the sign of the crystal- field split Delta(cf) as well as the spin-orbit coupling affect my strongly; (iii) the optical response epsilon(2) (h omega) is comparable for all six compounds; and (iv) band filling of electrons (n= 10(19) cm(-3)) and holes (p=n) narrows the band gap by E-g approximate to E-g(0)- 0.1 eV and generates an optical band gap of E-g(opt) approximate to E-g+ 0.2 eV.
Nyckelord
- n-type
- band-structure
- crystals
- 4h
- 3c
- 2h
- si
- cuinse2
- spectra
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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