Investigation of CuInSe2 nanowire arrays with core–shell structure electrodeposited at various duty cycles into anodic alumina templates
| Autor: | Mau-Phon Houng, Yu Song Cheng, Jia Jun Lin, Yu Zen Tsai, Na Fu Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope Nucleation Nanowire General Physics and Astronomy chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound PEDOT:PSS Selenide business.industry Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Semiconductor chemistry Transmission electron microscopy Optoelectronics 0210 nano-technology business Indium |
| Zdroj: | Applied Surface Science. 396:631-636 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2016.10.207 |
| Popis: | Copper indium selenide (CuInSe 2 ) nanowire (NW) arrays were prepared at various electrolyte duty cycles by filling anodic alumina templates through the pulsed electrodeposition technique. X-ray diffraction and scanning electron microscopy (SEM) images showed that the nucleation mechanism of CuInSe 2 NW arrays was affected by the electrodeposition duty cycle. Moreover, SEM images showed that the diameter and length of the NWs were 80 nm and 2 μm, respectively. Furthermore, PEDOT/CuInSe 2 NW core–shell arrays were fabricated using surfactant-modified CuInSe 2 NW surfaces showing the lotus effect. Transmission electron microscopy images confirmed that a core–shell structure was achieved. Current–voltage plots revealed that the CuInSe 2 NW arrays were p-type semiconductors; moreover, the core–shell structure improved the diode ideality factor from 3.91 to 2.63. |
| Databáze: | OpenAIRE |
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