Ultrafast Photoexcited-Carrier Behavior Induced by Hydrogen Ion Irradiation of a Cu(In,Ga)Se2 Thin Film in the Terahertz Region

We investigated the effects of H + ion irradiation on a chalcogenide Cu(In,Ga)Se 2 (CIGS) thin film as a function of the dose concentration (10 14 ∼ 10 16 /cm 2 ) at 200 keV by using time-resolved THz spectroscopy. The optical conductivity of these films was derived from THz time-domain spectroscopy...

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Veröffentlicht in:	IEEE transactions on terahertz science and technology 2021-03, Vol.11 (2), p.175-182
Hauptverfasser:	Lee, Woo-Jung, Lee, Gyuseok, Cho, Dae-Hyung, Kang, Chul, Myoung, NoSoung, Kee, Chul-Sik, Chung, Yong-Duck
Format:	Artikel
Sprache:	eng
Schlagworte:	Bend strength Copper indium gallium selenides Cu(In defect states Emission spectroscopy Ga)Se<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> _2</tex-math> </inline-formula> </named-content> H<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> ^+</tex-math> </inline-formula> </named-content> ion irradiation Hydrogen ions Ion irradiation Ions Measurement by laser beam Optical films Optical pulses optical pump-THz probe spectroscopy Optical pumping Photovoltaic cells Radiation effects Spectroscopy Spectrum analysis Thin films THz emission spectroscopy THz spectroscopy
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