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Enhanced Oxidation Stability of Transparent Copper Films Using a Hybrid Organic-Inorganic Nucleation Layer
摘要： We report a novel seed layer for the formation of slab-like transparent copper films on glass and plastic substrates, based on a mixed molecular monolayer and an ultra-thin (0.8 nm) aluminium layer both deposited from the vapour phase, which substantially outperforms the best nucleation layer for optically thin copper films reported to date. Using this hybrid layer, the metal percolation threshold is reduced to < 4 nm nominal thickness and the long-term stability of sub-10 nm films towards oxidation in air is comparable to that of silver films of the same thickness fabricated using the best reported seed layer for optically thin silver films to date. The underlying reason for the remarkable effectiveness of this hybrid nucleation is elucidated using a combination of photoelectron spectroscopy, small angle X-ray studies, atomic force microscopy and transmission electron microscopy.
关键词： ultrathin metal film,nucleation,transparent electrode,seed layer,passivation,copper
更新于2025-10-22 19:40:53
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[IEEE 2018 IEEE Conference on Antenna Measurements & Applications (CAMA) - V?ster?s, Sweden (2018.9.3-2018.9.6)] 2018 IEEE Conference on Antenna Measurements & Applications (CAMA) - Comparison of the Microwave Performance of Transparent Monopole Antennas Made of Different Transparent Conducting Films
摘要： The performance of four different transparent monopole antennas made from an ultrathin copper film, an ITO film, an ITO/Cu/ITO multilayer, a micrometric mesh silver film, and printed onto glass substrates is investigated. Optical transparency in the visible light spectrum, sheet resistance and microwave performance at 850 MHz of such samples are measured, compared and discussed. The micrometric mesh silver monopole antenna exhibits the best characteristics: a high level of optical transparency (higher than 80%) coupled to a sheet resistance as low as 0.054 Q/sq with a gain equal to 2.24 dBi at 850 MHz, very close to that of the reference and opaque counterpart (2.29 dBi) made of a continuous silver layer.
关键词： Mesh Metal Film,Ultrathin Metal Film,ITO/Metal Multilayer,Lozenge Monopole Antenna,ITO Film
更新于2025-09-04 15:30:14