کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5497521 | 1531902 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemically modified crystal orientation, surface morphology and optical properties using CTAB on Cu2O thin films
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
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چکیده انگلیسی
Cuprous oxide (Cu2O) thin films with different crystal orientations were electrochemically deposited in the presence of various molar concentrations of cetyl trimethyl ammonium bromide (CTAB) on fluorine doped tin oxide (FTO) glass substrate using standard three electrodes system. X-ray diffraction (XRD) studies reveal cubic structure of Cu2O with (1Â 1Â 1) plane orientation, after addition of CTAB in deposition solution, the orientation of crystal changes from (1Â 1Â 1) into (2Â 0Â 0) plane. Scanning electron microscope (SEM) images explored significant variation on morphology of Cu2O thin films deposited with addition of CTAB compared to without addition of CTAB. Photoluminescence (PL) spectra illustrate that the emission peak around at 650Â nm is attributed to near band edge emission, and the film prepared at the 3Â mM of CTAB exhibits much higher intensity than that of the all other films. UV-Visible spectra show optical absorption in the range of 480-610Â nm and the highest transparency of Cu2O film prepared at the concentration of 3Â mM CTAB. The optical band gap is increased in the range between 2.16 and 2.45Â eV with increasing the CTAB concentrations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Results in Physics - Volume 7, 2017, Pages 82-86
Journal: Results in Physics - Volume 7, 2017, Pages 82-86
نویسندگان
Karupanan Periyanan Ganesan, Narayanasamy Anandhan, Venkatraman Dharuman, Ponnusamy Sami, Ramaswamy Pannerselvam, Thandapani Marimuthu,