Novel Carrier Doping Mechanism for Transparent Conductor: Electron Donation from Embedded Ag Nanoparticles to the Oxide Matrix
| العنوان: | Novel Carrier Doping Mechanism for Transparent Conductor: Electron Donation from Embedded Ag Nanoparticles to the Oxide Matrix |
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| المؤلفون: | Ziye Xiong, Po-Shun Huang, Paul W. Leu, Fen Qin, Jung-Kun Lee, Tongchuan Gao, Hyun Woo Shim |
| المصدر: | ACS Applied Materials & Interfaces. 9:19973-19979 |
| بيانات النشر: | American Chemical Society (ACS), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 010302 applied physics, Electron mobility, Materials science, business.industry, Schottky barrier, Doping, Oxide, Nanotechnology, Fermi energy, 02 engineering and technology, Electron, Conductivity, 021001 nanoscience & nanotechnology, 01 natural sciences, Electron transfer, chemistry.chemical_compound, chemistry, 0103 physical sciences, Optoelectronics, General Materials Science, 0210 nano-technology, business |
| الوصف: | A trade-off between the carrier concentration and carrier mobility is an inherent problem of traditional transparent conducting oxide (TCO) films. In this study, we demonstrate that the electron concentration of TCO films can be increased without deteriorating the carrier mobility by embedding Ag nanoparticles (NPs) into Al-doped ZnO (AZO) films. An increment of Ag NP content up to 0.7 vol % in the AZO causes the electron concentration rising to 4 × 1020 cm–3. A dependence of the conductivity on temperature suggests that the energy barrier for the electron donation from Ag NPs at room temperature is similar to the Schottky barrier height at the Ag–AZO interface. In spite of an increase in the electron concentration, embedded Ag NPs do not compromise the carrier mobility at room temperature. This is evidence showing that this electron donation mechanism by Ag NPs is different from impurity doping, which produces both electrons and ionized scattering centers. Instead, an increase in the Fermi energy level o... |
| تدمد: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b03871 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a8426bc9669f06d8a0d29eefdfffdba https://doi.org/10.1021/acsami.7b03871 |
| رقم الانضمام: | edsair.doi.dedup.....7a8426bc9669f06d8a0d29eefdfffdba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448252 19448244 |
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| DOI: | 10.1021/acsami.7b03871 |