IN-SITU ANNEALING OF Cu(In,Ga)Se2 FILMS GROWN BY ELEMENTAL CO- EVAPORATION

Fabrication Of Cu(In,Ga)Se2 Solar Cells With In2S3 Buffer Layer By Two Stage Process

Cu(In,Ga)Se2 thin films (CIGS) on metallic substrate (titanium, molybdenum, aluminum, stainless steel) were prepared by a two-step selenization of Co-evaporated metallic precursors in Se-containing environment under N2 gas flow. Structural properties of prepared thin film were studied. To characterize the optical quality and intrinsic defect nature low-temperature photoluminescence, were perfor...

Fabrication of Cu(In,Ga)Se2 Thin Film by Selenization of Stacked Elemental Layer with Solid Selenium

Cu(In,Ga)Se2 thin films were prepared using the classical two-step process approach. In the first step, the metallic precursors were deposited on the soda-lime glass substrates by electron-beam evaporation following the Cu/In/Ga... sequence. The selenization, called the second step, was produced in a rapid thermal processor. This process performed under nitrogen atmosphere of 200 Torr at 200°C ...

Strength, stiffness, and microstructure of Cu(In,Ga)Se2 thin films deposited via sputtering and co-evaporation

Epitaxial growth of Cu„In,Ga...Se2 on GaAs„110..

Epitaxial Cu(In, Ga)Se2 ~CIGS! films were grown on ~110!-oriented GaAs substrates using a hybrid sputtering and evaporation process. The morphological and structural properties were determined by scanning electron microscopy, atomic force microscopy, x-ray diffraction, and electron backscatter diffraction. Pronounced faceting was observed on the surfaces of the films and Ga diffusion was observ...

Evolution of opto-electronic properties during film formation of complex semiconductors

Optical and electrical properties of complex semiconducting alloys like Cu(In,Ga)Se2 (CIGS) are strongly influenced by the reaction pathways occurring during their deposition process. This makes it desirable to observe and control these properties in real-time during the deposition. Here we show for the first time the evolution of the band gap and the sub-band-gap defect absorption of CIGS thin...