کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7224644 | 1470570 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphological, optical and structural analysis in CdS, CdS-CdCO3 and CdCO3 thin solid films grown by chemical bath
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
CdS, CdS-CdCO3 and CdCO3 thin films grown by chemical bath at â¼80, â¼60 and â¼40 °C temperature range were prepared. Morphology and size showed changes as a variety of truncated cube-shaped structures, wires and circles. Energy band gap was â¼2.4 eV (CdS) and â¼4.0 eV (CdCO3), respectively. XRD showed wurtzite crystalline phase for CdS films and a rhombohedral phase for CdCO3. Raman spectra in CdS exhibited a peak for A1(TO) phonon corresponding to wurzite and CdCO3 film showed internal vibrations of CO32â group: v1-symmetric stretching (â¼1090 cmâ1) v3-asymmetric CO stretching (â¼1401 cmâ1); v4-in-plane band of the CO32â ions and two bands assigned to translations and release of the CO32â group relative to the Cd atoms: v13 (â¼274 cmâ1), v14 (â¼169 cmâ1). Lattice modes v13 (â¼274 cmâ1), v3- asymmetric CO stretching (â¼1401 cmâ1), v1-symmetric CO stretching â¼1090 cmâ1 were also noted. Finally, a simple thermodynamic analysis is presented to understand the formation of the compounds by calculations of Gibbs free energy and data associated with the corresponding ions of the CdS and CdCO3 materials in our working conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 157, March 2018, Pages 388-399
Journal: Optik - Volume 157, March 2018, Pages 388-399
نویسندگان
O. Portillo Moreno, R. Gutiérrez Pérez, M. Chávez Portillo, M.E. Araiza GarcÃa, G.E. Moreno, S. Cruz Cruz, E. Rubio Rosas, M. Hernandez Lascano,