Role of Na in reaction pathways and kinetics of CuInSe2 formation from stacked binary precursors |
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Authors: | Sung Cheol KimHyeonwook Park Eun-Woo LeeJae Sung Han Sung Ho LeeChan-Wook Jeon Dongwook JungJinju Jeong Woo Kyoung Kim |
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Affiliation: | a School of Display and Chem. Eng., Yeungnam University, Gyeongsan 712-749, Republic of Koreab Nano Fusion Research Team, Nano Practical Application Center, Daegu, 704-801, Republic of Koreac A-Project Team, R&D Business Labs., Hyosung, Anyang, 431-080, Republic of Korea |
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Abstract: | Binary stacked In2Se3/CuSe precursors were prepared onto substrates with different types of sodium (Na) sources, i.e., soda-lime glass (SLG), sodium-free glass (SFG), SFG with Na-doped Mo layers (Mo:Na), in a co-evaporation system. SIMS depth profiles for In2Se3 precursors deposited at 400 °C demonstrated that the different amounts of Na diffused out of each Na source. High-temperature XRD experiments revealed that there was no significant effect of Na on the reaction path of CuInSe2 formation from In2Se3/CuSe stacked precursor. The reaction rate of the precursor without Na (i.e., SFG/Mo/In2Se3/CuSe) was found to be higher than that of those with Na (i.e., SLG/Mo/In2Se3/CuSe and SFG/Mo:Na(750 nm)/Mo/In2Se3/CuSe). |
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Keywords: | CuInSe2 Na effect Mo:Na SIMS |
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