Reductive Thermal Atomic Layer Deposition Process for Gold
In this work, we developed an atomic layer deposition (ALD) process for gold metal thin films from chloro(triethylphosphine)gold(I) [AuCl(PEt3)] and 1,4-bis(trimethylgermyl)-1,4-dihydropyrazine [(Me3Ge)2DHP]. High purity gold films were deposited on different substrate materials at 180 °C for t...
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Veröffentlicht in: | ACS Materials Au 2023-05, Vol.3 (3), p.206-214 |
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creator | Vihervaara, Anton Hatanpää, Timo Nieminen, Heta-Elisa Mizohata, Kenichiro Chundak, Mykhailo Ritala, Mikko |
description | In this work, we developed an atomic layer deposition (ALD) process for gold metal thin films from chloro(triethylphosphine)gold(I) [AuCl(PEt3)] and 1,4-bis(trimethylgermyl)-1,4-dihydropyrazine [(Me3Ge)2DHP]. High purity gold films were deposited on different substrate materials at 180 °C for the first time with thermal reductive ALD. The growth rate is 1.7 Å/cycle after the film reaches full coverage. The films have a very low resistivity close to the bulk value, and a minimal amount of impurities could be detected. The reaction mechanism of the process is studied in situ with a quartz crystal microbalance and a quadrupole mass spectrometer. |
doi_str_mv | 10.1021/acsmaterialsau.2c00075 |
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High purity gold films were deposited on different substrate materials at 180 °C for the first time with thermal reductive ALD. The growth rate is 1.7 Å/cycle after the film reaches full coverage. The films have a very low resistivity close to the bulk value, and a minimal amount of impurities could be detected. The reaction mechanism of the process is studied in situ with a quartz crystal microbalance and a quadrupole mass spectrometer.</description><identifier>ISSN: 2694-2461</identifier><identifier>EISSN: 2694-2461</identifier><identifier>DOI: 10.1021/acsmaterialsau.2c00075</identifier><identifier>PMID: 38089133</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>ACS Materials Au, 2023-05, Vol.3 (3), p.206-214</ispartof><rights>2023 The Authors. Published by American Chemical Society</rights><rights>2023 The Authors. Published by American Chemical Society.</rights><rights>2023 The Authors. 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title | Reductive Thermal Atomic Layer Deposition Process for Gold |
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