High performance flexible copper indium gallium selenide core–shell nanorod array photodetectors
| Autor: | Matthew Brozak, Emad Badradeen, Khalidah H. Al-Mayalee, Tansel Karabacak, Filiz Keles |
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| Rok vydání: | 2017 |
| Předmět: |
Photocurrent
Materials science business.industry Analytical chemistry 02 engineering and technology Surfaces and Interfaces Sputter deposition 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Copper indium gallium selenide solar cells 0104 chemical sciences Surfaces Coatings and Films Kapton chemistry.chemical_compound chemistry Sputtering Optoelectronics Nanorod Thin film 0210 nano-technology business Copper indium gallium selenide |
| Zdroj: | Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 35:03E112 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/1.4982681 |
| Popis: | In this study, the authors fabricated high performance core–shell nanostructured flexible photodetectors on a polyimide substrate of Kapton. For this purpose, p-type copper indium gallium selenide (CIGS) nanorod arrays (core) were coated with aluminum doped zinc oxide (AZO) films (shell) at relatively high Ar gas pressures. CIGS nanorods were prepared by glancing angle deposition (GLAD) technique using radio frequency (RF) magnetron sputtering unit at room temperature. AZO films were deposited by RF sputtering at Ar pressures of 1.0×10−2 mbar (high pressure sputtering) for the shell and at 3.0×10−3 mbar (low pressure sputtering) to create a top contact. As a comparison, the authors also fabricated conventional planar thin film devices incorporating CIGS film of similar material loading to that of CIGS nanorods. The morphological characterization was carried out by field-emission scanning electron microscope. The photocurrent measurement was conducted under 1.5 AM sun at zero electrical biasing, where CIGS... |
| Databáze: | OpenAIRE |
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