Dielectric functions of Cu2ZnSnSe4 and Cu2SnSe3 semiconductors

Dielectric functions of Cu2ZnSnSe4 and Cu2SnSe3 semiconductors

The dielectric functions of co-evaporated Cu2ZnSnSe4 (CZTSe) and Cu2SnSe3 (CTSe) polycrystalline layers are determined accurately from self-consistent spectroscopic ellipsometry analyses. To minimize the effects of the compositional modulation and light scattering induced by rough surfaces, quite th...

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Veröffentlicht in:Journal of applied physics 2015-01, Vol.117 (1)
Hauptverfasser: Hirate, Yoshiki, Tampo, Hitoshi, Minoura, Shota, Kadowaki, Hideyuki, Nakane, Akihiro, Kim, Kang Min, Shibata, Hajime, Niki, Shigeru, Fujiwara, Hiroyuki
Format: Artikel
Sprache:eng
Schlagworte:
Absorptivity
Brillouin zones
Copper
Copper zinc tin selenide
Critical point
Density functional theory
Dielectric strength
Electromagnetic absorption
Light scattering
Mathematical models
Optical properties
Optical transition
Semiconductors
Spectroellipsometry
Thin films
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Zusammenfassung:The dielectric functions of co-evaporated Cu2ZnSnSe4 (CZTSe) and Cu2SnSe3 (CTSe) polycrystalline layers are determined accurately from self-consistent spectroscopic ellipsometry analyses. To minimize the effects of the compositional modulation and light scattering induced by rough surfaces, quite thin CZTSe and CTSe layers (
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4905285