Growth of doped PbS:Co2+ nanocrystals by Chemical Bath
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedad Mexicana de Física A.C.
2016
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| _version_ | 1876422435789602816 |
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| author | O. Portillo-Moreno |
| author_facet | O. Portillo-Moreno |
| contents | Growth of doped PbS:Co2+ nanocrystals by Chemical Bath O. Portillo-Moreno R. Gutiérrez-Pérez M. Chávez Portillo M.N. Márquez Specia G. Hernández-Téllez M. Lazcano Hernández A. Moreno Rodríguez R. Palomino-Merino E. Rubio Rosas Física, Astronomía y Matemáticas doping quantum Thin films nanocrystals confinement effect Nanocrystalline PbS films grown by chemical bath at T = 40 ß 2 ± C onto glass slides were modified by in situ Co 2+ -doping and their structural and optical properties were examined. By FT-IR spectra, a sharp stretching mode can be seen at ª 1384 cm ° 1 due to the vibration mode of CO 2 3 ions. XRD patterns shown the growth on the zinc blende crystalline face. The grain size was determined by using X-rays diffractograms and was found at ª 28 nm and ª 13 ° 25 nm for undoped and doped samples, respectively. Optical absorption spectra was used for calculating the energy band gap, and displayed a shift in the ª 1 : 21 ° 2 : 21 eV range, associated with quantum confinement effect. Raman peaks at ª 210 , 271, and 451 cm ° 1 , corresponding to a 1LO phonon mode, a two-phonon process, and a 2LO phonon mode respectively were also recorded. The surface and grain size of the films were measured by AFM studies. 2016 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57046491008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.62 |
| format | Artículo científico |
| id | redalyc_57046491008 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Growth of doped PbS:Co2+ nanocrystals by Chemical Bath O. Portillo-Moreno Física, Astronomía y Matemáticas doping quantum Thin films nanocrystals confinement effect Growth of doped PbS:Co2+ nanocrystals by Chemical Bath O. Portillo-Moreno R. Gutiérrez-Pérez M. Chávez Portillo M.N. Márquez Specia G. Hernández-Téllez M. Lazcano Hernández A. Moreno Rodríguez R. Palomino-Merino E. Rubio Rosas Física, Astronomía y Matemáticas doping quantum Thin films nanocrystals confinement effect Nanocrystalline PbS films grown by chemical bath at T = 40 ß 2 ± C onto glass slides were modified by in situ Co 2+ -doping and their structural and optical properties were examined. By FT-IR spectra, a sharp stretching mode can be seen at ª 1384 cm ° 1 due to the vibration mode of CO 2 3 ions. XRD patterns shown the growth on the zinc blende crystalline face. The grain size was determined by using X-rays diffractograms and was found at ª 28 nm and ª 13 ° 25 nm for undoped and doped samples, respectively. Optical absorption spectra was used for calculating the energy band gap, and displayed a shift in the ª 1 : 21 ° 2 : 21 eV range, associated with quantum confinement effect. Raman peaks at ª 210 , 271, and 451 cm ° 1 , corresponding to a 1LO phonon mode, a two-phonon process, and a 2LO phonon mode respectively were also recorded. The surface and grain size of the films were measured by AFM studies. 2016 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57046491008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.62 |
| title | Growth of doped PbS:Co2+ nanocrystals by Chemical Bath |
| topic | Física, Astronomía y Matemáticas doping quantum Thin films nanocrystals confinement effect |
| url | https://www.redalyc.org/articulo.oa?id=57046491008 |