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Embedded Oxidized A...
Embedded Oxidized Ag-Pd-Cu Ultrathin Metal Alloy Film Prepared at Low Temperature with Excellent Electronic, Optical, and Mechanical Properties
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- Kim, Seohan (författare)
- Uppsala universitet,Fasta tillståndets fysik,Pusan Natl Univ, Mat Technol Res Inst, Busan 46241, South Korea.
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- Montero Amenedo, José, 1983- (författare)
- Uppsala universitet,Fasta tillståndets fysik
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- Yoon, Janghee (författare)
- Busan Ctr, Korea Basic Sci Inst, Busan 46742, South Korea.
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- Choi, Yunju (författare)
- Busan Ctr, Korea Basic Sci Inst, Busan 46742, South Korea.
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- Park, Sungmin (författare)
- Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South Korea.
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- Song, Pungkeun (författare)
- Pusan Natl Univ, Dept Mat Sci & Engn, Busan 46241, South Korea.
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- Österlund, Lars, 1967- (författare)
- Uppsala universitet,Fasta tillståndets fysik
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(creator_code:org_t)
- 2022-03-22
- 2022
- Engelska.
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Ingår i: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 14:13, s. 15756-15764
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Most transparent conducting materials are based on Sn:In2O3 (ITO). When applied onto flexible substrates, ITO can be prepared in an oxide-metal-oxide (OMO) configuration, typically ITO/Ag/ITO, where the ductility of the embedded metal layer is intended to reduce the mechanical brittleness and improve the electrical conductivity of the OMO multilayer. Hitherto, the lower limit of the thickness of the Ag layer has been limited by the percolation threshold, which limits the Ag layer to be thicker than similar to 10 nm to avoid agglomeration and to ensure conductivity and structural stability. Metal layers of thicknesses below 10 nm are, however, desirable for obtaining OMO coatings with better optical properties. It is known that agglomeration of the metal layer can, to some extent, be suppressed when substituting Ag by an Ag-Pd-Cu (APC) alloy. APC-based OMO films exhibit excellent optical and electrical properties, but still continuous APC films well below 10 nm thickness cannot be achieved. In this work we demonstrate that controlled oxidation of APC results in smooth, ultrathin APC:O continuous coatings (of thickness similar to 5 nm) on ITO-coated PET substrates. Moderate oxidation yields superficial PdOx formation, which suppresses Ag agglomeration, while still maintaining excellent conductivity. On the other hand, extensive oxidation of APC leads to extensive Pd oxide nucleation deteriorating the conductivity of the film. The ITO/APC:O/ITO films exhibit low resistivity, attributed to a high Hall mobility associated with suppressed agglomeration, good stability in high humidity/temperature environments, superior transmittance in the visible and infrared region, and excellent mechanical bending properties, thus providing new opportunities for fabricating superior transparent conducting coatings on polymer substrates.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- transparent conducting materials
- ultrathin metal layers
- Ag-Pd-Cu alloy
- OMO structure
- magnetron sputtering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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