Jang, Yun Jung Lee, Jihye Jeong, Jeung-hyun Lee, Kang-Bong Kim, Donghwan Lee, Yeonhee 2024-01-19T23:00:49Z 2024-01-19T23:00:49Z 2021-09-03 2018-05 1533-4880 https://pubs.kist.re.kr/handle/201004/121430 To enhance the conversion performance of solar cells, a quantitative and depth-resolved elemental analysis of photovoltaic thin films is required. In this study, we determined the average concentration of the major elements (Cu, In, Ga, and Se) in fabricated Cu(In, Ga) Se-2 (CIGS) thin films, using inductively coupled plasma atomic emission spectroscopy, X-ray fluorescence, and wavelengthdispersive electron probe microanalysis. Depth profiling results for CIGS thin films with different cell efficiencies were obtained using secondary ion mass spectrometry and Auger electron spectroscopy to compare the atomic concentrations. Atom probe tomography, a characterization technique with sub-nanometer resolution, was used to obtain three-dimensional elemental mapping and the compositional distribution at the grain boundaries (GBs). GBs are identified by Na increment accompanied by Cu depletion and In enrichment. Segregation of Na atoms along the GB had a beneficial effect on cell performance. Comparative analyses of different CIGS absorber layers using various analytical techniques provide us with understanding of the compositional distributions and structures of high efficiency CIGS thin films in solar cells. English AMER SCIENTIFIC PUBLISHERS QUANTITATIVE-ANALYSIS HIGH-EFFICIENCY GROWTH NA Complementary Characterization of Cu(In, Ga)Se-2 Thin-Film Photovoltaic Cells Using Secondary Ion Mass Spectrometry, Auger Electron Spectroscopy, and Atom Probe Tomography Article 10.1166/jnn.2018.14646 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.18, no.5, pp.3548 - 3556 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 18 5 3548 3556 scie 000426040800064 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article QUANTITATIVE-ANALYSIS HIGH-EFFICIENCY GROWTH NA Copper Indium Gallium Selenide Sodium SIMS AES APT