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In situ and ex situ characterization were performed to assess the effects of potassium fluoride postdeposition treatment (KF PDT) on Cu(In,Ga)Se2 (CIGS) films and solar cells. Real-time spectroscopic ellipsometry enabled the in situ observation of the modification of the CIGS dielectric function and surface roughness thickness during KF PDT. In addition, deep-level transient spectroscopies (DLTS)...
We propose a surface plasmon resonance (SPR) sensor that makes use of titanium/silver thin film on indium tin oxide (ITO) coated glass. The use of silver enhances the detection accuracy of the sensor, whereas ITO coated glass results in good sensitivity. Fabrication and characterization of the sensor chip, i.e., ITO/Ti/Ag have been carried out. The effect of surface roughness on the performance of...
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