Kim, Kyung Joong Jang, Jong Shik Kim, An Soon Suh, Jung Ki Chung, Yong-Duck Hodoroaba, Vasile-Dan Wirth, Thomas Unger, Wolfgang Kang, Hee Jae Popov, Oleg Popov, Inna Kuselman, Ilya Lee, Yeon Hee Sykes, David E. Wang, Meiling Wang, Hai Ogiwara, Toshiya Nishio, Mitsuaki Tanuma, Shigeo Simons, David Szakal, Christopher Osborn, William Terauchi, Shinya Ito, Mika Kurokawa, Akira Fujimoto, Toshiyuki Jordaan, Werner Jeong, Chil Seong Havelund, Rasmus Spencer, Steve Shard, Alex Streeck, Cornelia Beckhoff, Burkhard Eicke, Axel Terborg, Ralf 2024-01-20T08:01:58Z 2024-01-20T08:01:58Z 2022-01-25 2015-01 0026-1394 https://pubs.kist.re.kr/handle/201004/125894 A pilot study for a quantitative surface analysis of multi-element alloy films has been performed by the Surface Analysis Working Group (SAWG) of the Consultative Committee for Amount of Substance (CCQM). The aim of this pilot study is to evaluate a protocol for a key comparison to demonstrate the equivalence of measures by National Metrology Institutes (NMIs) and Designated Institutes (DI) for the mole fractions of multi-element alloy films. A Cu(In, Ga)Se-2 (CIGS) film with non-uniform depth distribution was chosen as a representative multi-element alloy film. The mole fractions of the reference and the test CIGS films were certified by isotope dilution-inductively coupled plasma/mass spectrometry. A total number counting (TNC) method was used as a method to determine the signal intensities of the constituent elements acquired in SIMS, XPS and AES depth profiling. TNC method is comparable with the certification process because the certified mole fractions are the average values of the films. The mole fractions of the CIGS films were measured by Secondary Ion Mass Spectrometry (SIMS), Auger Electron Spectroscopy (AES), X-ray Photoelectron Spectroscopy (XPS), X-Ray Fluorescence (XRF) Analysis and Electron Probe Micro Analysis (EPMA) with Energy Dispersive X-ray Spectrometry (EDX). Fifteen laboratories from eight NMIs, one DI, and six non-NMIs participated in this pilot study. The average mole fractions of the reported data showed relative standard deviations from 5.5 % to 6.8 % and average relative expanded uncertainties in the range from 4.52 % to 4.86 % for the four test CIGS specimens. These values are smaller than those in the key comparison CCQM-K67 for the measurement of mole fractions of Fe-Ni alloy films. As one result it can be stated that SIMS, XPS and AES protocols relying on the quantification of CIGS films using the TNC method are mature to be used in a CCQM key comparison. English IOP PUBLISHING LTD CCQM pilot study CCQM-P140: quantitative surface analysis of multi-element alloy films Article 10.1088/0026-1394/52/1A/08017 1 METROLOGIA, v.52 METROLOGIA 52 N scie scopus 000210162800105 Instruments & Instrumentation Physics, Applied Instruments & Instrumentation Physics Editorial Material