Electrodeposited Silver Nanowire Transparent Conducting Electrodes for Thin-Film Solar Cells
| Autor: | Eun-chae Jeon, Joon Sik Park, Jiseong Jang, Sangyeob Lee, Young Min Park, Yoon-Kee Kim, Hyoung-Keun Lee, Taejun Park, Byungmin Ahn, Choong-Heui Chung, Doh-Kwon Lee |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry Oxide Conductance 02 engineering and technology Silver nanowires 021001 nanoscience & nanotechnology 01 natural sciences law.invention Indium tin oxide chemistry.chemical_compound chemistry law 0103 physical sciences Solar cell Electrode Figure of merit Optoelectronics General Materials Science Thin film 0210 nano-technology business |
| Zdroj: | ACS applied materialsinterfaces. 12(5) |
| ISSN: | 1944-8252 |
| Popis: | Silver nanowire (AgNW) networks have demonstrated high optical and electrical properties, even better than those of indium tin oxide thin films, and are expected to be a next-generation transparent conducting electrode (TCE). Enhanced electrical and optical properties are achieved when the diameter of the AgNWs in the network is fairly small, that is, typically less than 30 nm. However, when AgNWs with such small diameters are used in the network, stability issues arise. One method to resolve the stability issues is to increase the diameter of the AgNWs, but the use of AgNWs with large diameters has the disadvantage of causing a rough surface morphology. In this work, we resolve all of the aforementioned issues with AgNW TCEs by the electrodeposition of Ag onto as-spin-coated thin AgNW TCEs. The electrodeposition of Ag offers many advantages, including the precise adjustment of the AgNW diameter and wire-to-wire welding to improve the junction conductance while minimizing the increase in protrusion height because of the overlap of AgNWs upon increasing the diameter. In addition, Ag electrodeposition on AgNW TCEs can provide higher conductance than that of as-spin-coated AgNW TCEs at the same transparency because of the reduced junction resistance, which generates a superior figure of merit. We applied the electrodeposited (ED) AgNW network to a Cu(In,Ga)Se2 thin-film solar cell and compared the device performance to a device with a standard sputtered transparent conducting oxide (TCO). The cell fabricated by the electrodeposition method showed nearly equal performance to that of a cell with the sputtered TCO. We expect that ED AgNW networks can be used as high-performance and robust TCEs for various optoelectronic applications. |
| Databáze: | OpenAIRE |
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