Synthesis of Quaternary Cu(InxGa1 − x) Se2 Nanoparticles for Photovoltaic Applications Using Heating-up Method
| Autor: | Hadi Zarei, H. Absalan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Absorption spectroscopy Band gap 020209 energy General Mathematics Analytical chemistry General Physics and Astronomy chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences chemistry Absorption edge 0202 electrical engineering electronic engineering information engineering General Earth and Planetary Sciences Crystallite Gallium General Agricultural and Biological Sciences Absorption (electromagnetic radiation) Indium Visible spectrum |
| Zdroj: | Iranian Journal of Science and Technology, Transactions A: Science. 43:309-314 |
| ISSN: | 2364-1819 1028-6276 |
| DOI: | 10.1007/s40995-017-0440-5 |
| Popis: | Nowadays, thin-film solar cells based on nanoparticles have attracted much attention from photovoltaic cell researchers and industries due to their fairly high efficiency and economic costs. In this paper, tetragonal chalcopyrite, Cu(InxGa1 − x)Se2, with x = 0, 0.5, 0.8, 1 is produced by heating-up method. The structure of nanoparticles differ in terms of morphology and absorption properties based on synthesis temperatures 250, 255, 260, 265, 270 and 280 °C and gallium molar ratio over total gallium and indium content. These features are characterized using scanning electron microscope, X-ray diffraction, and absorption spectroscopy in visual, ultra-violate and close-infrared wavelengths. Results indicated that by decreasing x, or in other word increasing gallium content, absorption edge rises toward visible light. Any difference in absorption edge changes band gap and as a result energy gap and cell absorption increase considerably. Furthermore, in heating-up method, increasing reaction temperature improves nanoparticle crystallites and as a result absorption and cells efficiency increase. Produced nanoparticles are spherical in shape which vary around 30–80 nm in size. |
| Databáze: | OpenAIRE |
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