Optoelectronic and electrochemical behaviour of γ-CuI thin films prepared by solid iodination process
| Autor: | Karthik Kumar Chinnakutti, Shyju Thankaraj Salammal, Ajith Kumar Soman, Durai Govindarajan, Kuppusami Parasuraman, Vengatesh Panneerselvam |
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| Rok vydání: | 2019 |
| Předmět: |
Horizontal scan rate
Materials science Fabrication business.industry 02 engineering and technology Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Capacitance 0104 chemical sciences Electrical resistivity and conductivity lcsh:TA401-492 Optoelectronics lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Cyclic voltammetry Thin film 0210 nano-technology business |
| Zdroj: | Progress in Natural Science: Materials International, Vol 29, Iss 5, Pp 533-540 (2019) |
| ISSN: | 1002-0071 |
| DOI: | 10.1016/j.pnsc.2019.09.005 |
| Popis: | A simple and efficient solid iodination method has been proposed for the fabrication of p-type γ-CuI thin films. The structural, morphological, optical, electrical and electrochemical properties have been investigated in order to serve as an effective hole-transporting layer in solid-state solar cells. The fabricated films exhibited p-type conductivity with resistivity of 7.0 × 10−2 Ω cm, the hole concentration of ~1.13 × 1019 cm−3 and the mobility of 18.34 cm−2 V−1 s−1. The cyclic voltammetry result shows a maximum specific capacitance of 43 mF/cm2 at a scan rate of 10 mV/s. The cyclic stability and capacitance retention were found to be 99.7%. These findings demonstrate that γ-CuI film can be a potential candidate for multiple applications, such as a hole transporting material for solid-state solar cells and electrochemical supercapacitor. Keywords: Copper iodide, Solid iodination, Hole mobility, Cyclic voltammetry |
| Databáze: | OpenAIRE |
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