Formation Mechanisms of Cu(In0.7Ga0.3)Se2 Nanocrystallites Synthesized Using Hot-Injection and Heating-Up Processes
| Autor: | Wei Hsiang Hsu, Hsing I. Hsiang, Yu Lun Chang, Fu Su Yen, Dah Tong Ray |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Chalcopyrite Thermal decomposition chemistry.chemical_element Nanotechnology Copper indium gallium selenide solar cells Copper Chemical engineering chemistry visual_art Phase (matter) Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Reactivity (chemistry) Gallium Indium |
| Zdroj: | Journal of the American Ceramic Society. 94:3030-3034 |
| ISSN: | 0002-7820 |
| DOI: | 10.1111/j.1551-2916.2011.04488.x |
| Popis: | Nearly monodispersed CuIn0.7Ga0.3Se2 (CIGS) nanocrystals were successfully prepared using the thermal decomposition of copper, indium (In), gallium (Ga), and selenium–oleylamine (OLA) complexes via the heating-up process. The phase formation sequence was CuSe→CuInSe2→CIGS. The CIGS nanocrystals synthesized using the heating-up process exhibited a single chalcopyrite phase and its chemical composition was close to stoichiometric. However, phase separation of the In-rich and Ga-rich phases was found using the hot-injection method due to the difference in reactivity between In–OLA and Ga–OLA complexes. |
| Databáze: | OpenAIRE |
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