Investigation of ultra-thin and flexible Au–Ag–Au transparent conducting electrode
| Autor: | Pratim Hazarika, Jean Maria Fernandes, Slavia Deeksha D’souza, R. Arockia Kumar, Ch Surya Prakasarao, D. Paul Joseph, M. Kovendhan |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry General Physics and Astronomy 02 engineering and technology Substrate (electronics) Adhesion Conductivity 021001 nanoscience & nanotechnology 01 natural sciences Wavelength Hall effect 0103 physical sciences Electrode Transmittance Optoelectronics General Materials Science 0210 nano-technology business Sheet resistance |
| Zdroj: | Current Applied Physics. 20:1118-1124 |
| ISSN: | 1567-1739 |
| DOI: | 10.1016/j.cap.2020.06.016 |
| Popis: | The performance of ultra-thin Au–Ag–Au tri-layer film deposited thermally over a flexible substrate is investigated using structural, optical, mechanical and electrical-transport measurements. The optimum total thickness of the tri-layer for high transparency and conductivity is determined to be around 8 nm using a theoretical model. The Au–Ag–Au tri-layer shows maximum transmittance (≅ 62%) at wavelength 500 nm. XRD pattern shows peak corresponding to (111) plane of Au and/or Ag. Sheet resistance (≅ 10.42 Ω/□) measured at 300 K using four probe technique is stable up to 150 °C. Hall effect measurements show high conductivity (1.34 × 105 (Ω cm)−1), carrier concentration (2.48 × 1023/cm3), and mobility (3.4 cm2/Vs). Scotch tape test confirms good adhesion of the film onto PET substrate. Bending-twisting tests using an indigenous apparatus indicate high resistance-stability even after 50,000 cycles. These results imply the viability of Au–Ag–Au tri-layer film as a transparent conducting electrode worth exploring for optoelectronic applications. |
| Databáze: | OpenAIRE |
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