Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis
Over the past few years, there has been a significant focus on studying the synthesis and applications of metal nanoparticles. These tiny particles possess distinct properties that set them apart from bulk metals. Cr:Se core-shell nano thin film has been pre-coated by plasma jets with different con...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2025-07-01
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| Series: | Ibn Al-Haitham Journal for Pure and Applied Sciences |
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| Online Access: | https://jih.uobaghdad.edu.iq/index.php/j/article/view/4026 |
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| author | Taghreed A. Hilmi Ramiz A. Al-Ansari |
| author_facet | Taghreed A. Hilmi Ramiz A. Al-Ansari |
| author_sort | Taghreed A. Hilmi |
| collection | DOAJ |
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Over the past few years, there has been a significant focus on studying the synthesis and applications of metal nanoparticles. These tiny particles possess distinct properties that set them apart from bulk metals. Cr:Se core-shell nano thin film has been pre-coated by plasma jets with different concentrations (10:0, 8:2, and 6:4) and deposition by chemical spray pyrolysis. The nano-thin films were analyzed by X-ray diffraction (XRD), ultraviolet-visible spectroscopy(UV), and transmission electron microscopy TEM. This study looks into the structure and optical features of core-shell nanoparticles made with different ratios of chromium and selenium (Cr:Se). The X-ray diffraction patterns confirm the crystalline nature of the nanoparticles and the ratio (6:4). Exposing the best crystalline phase to non-thermal plasma (DBD) results in significant changes in the XRD, transitioning towards a more crystalline phase. Tauc plots show a non-linear trend in direct bandgap energies, meaning the energy gap increased (2.77-3.88 eV), notably increasing. Transmission electron microscopy analysis highlights improved nanoparticle distribution and uniformity. non-thermal plasma ( DBD ) significantly enhances the humidity sensitivity, thereby optimizing the nanoparticles for sensor applications. These findings underscore the potential of Cr:Se nanoparticles for advanced optoelectronic and sensing technologies and various technological applications.
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| format | Article |
| id | doaj-art-2582ba64e8ff4e1dac79cbfe6e805c69 |
| institution | DOAJ |
| issn | 1609-4042 2521-3407 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Ibn Al-Haitham Journal for Pure and Applied Sciences |
| spelling | doaj-art-2582ba64e8ff4e1dac79cbfe6e805c692025-08-20T03:12:31ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072025-07-0138310.30526/38.3.4026Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray PyrolysisTaghreed A. Hilmi0https://orcid.org/0009-0007-3658-334XRamiz A. Al-Ansari1https://orcid.org/0009-0006-2519-5993Department of Physics, College of Science for Women, University of Baghdad, Baghdad, Iraq.Department of Physics, College of Science for Women, University of Baghdad, Baghdad, Iraq. Over the past few years, there has been a significant focus on studying the synthesis and applications of metal nanoparticles. These tiny particles possess distinct properties that set them apart from bulk metals. Cr:Se core-shell nano thin film has been pre-coated by plasma jets with different concentrations (10:0, 8:2, and 6:4) and deposition by chemical spray pyrolysis. The nano-thin films were analyzed by X-ray diffraction (XRD), ultraviolet-visible spectroscopy(UV), and transmission electron microscopy TEM. This study looks into the structure and optical features of core-shell nanoparticles made with different ratios of chromium and selenium (Cr:Se). The X-ray diffraction patterns confirm the crystalline nature of the nanoparticles and the ratio (6:4). Exposing the best crystalline phase to non-thermal plasma (DBD) results in significant changes in the XRD, transitioning towards a more crystalline phase. Tauc plots show a non-linear trend in direct bandgap energies, meaning the energy gap increased (2.77-3.88 eV), notably increasing. Transmission electron microscopy analysis highlights improved nanoparticle distribution and uniformity. non-thermal plasma ( DBD ) significantly enhances the humidity sensitivity, thereby optimizing the nanoparticles for sensor applications. These findings underscore the potential of Cr:Se nanoparticles for advanced optoelectronic and sensing technologies and various technological applications. https://jih.uobaghdad.edu.iq/index.php/j/article/view/4026Cr:SeCore-shellPlasma jetsDBDThin film |
| spellingShingle | Taghreed A. Hilmi Ramiz A. Al-Ansari Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis Ibn Al-Haitham Journal for Pure and Applied Sciences Cr:Se Core-shell Plasma jets DBD Thin film |
| title | Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis |
| title_full | Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis |
| title_fullStr | Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis |
| title_full_unstemmed | Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis |
| title_short | Impacts of Non-Thermal Plasma on the Structural and Optical Characteristics of Cr:Se Core-Shell Thin Films Synthesized Using Chemical Spray Pyrolysis |
| title_sort | impacts of non thermal plasma on the structural and optical characteristics of cr se core shell thin films synthesized using chemical spray pyrolysis |
| topic | Cr:Se Core-shell Plasma jets DBD Thin film |
| url | https://jih.uobaghdad.edu.iq/index.php/j/article/view/4026 |
| work_keys_str_mv | AT taghreedahilmi impactsofnonthermalplasmaonthestructuralandopticalcharacteristicsofcrsecoreshellthinfilmssynthesizedusingchemicalspraypyrolysis AT ramizaalansari impactsofnonthermalplasmaonthestructuralandopticalcharacteristicsofcrsecoreshellthinfilmssynthesizedusingchemicalspraypyrolysis |