Growth and properties of lead iodide thin films by spin coating
In this study, lead iodide (PbI2) thin films were deposited on glass substrates by spin coating a solution of 0.2 M PbI2 dissolved in dimethylformamide, varying the deposition time and the spin speed. The thickness of the thin films decreased with increase in spin speed and deposition time, as exa...
| Autores principales: | , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Indian Academy of Sciences in collaboration with Indian National Science Academy
2016
|
| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/14755/1/5.pdf |
| _version_ | 1824414131332055040 |
|---|---|
| author | Acuña Leal, Daniel Arturo Krishnan, Bindu Shaji, Sadasivan Sepúlveda, S. Menchca, J. L. |
| author_facet | Acuña Leal, Daniel Arturo Krishnan, Bindu Shaji, Sadasivan Sepúlveda, S. Menchca, J. L. |
| author_sort | Acuña Leal, Daniel Arturo |
| collection | Repositorio Institucional |
| description | In this study, lead iodide (PbI2) thin films were deposited on glass substrates by spin coating a solution
of 0.2 M PbI2 dissolved in dimethylformamide, varying the deposition time and the spin speed. The thickness of the
thin films decreased with increase in spin speed and deposition time, as examined by profilometry measurements. The structure, morphology, optical and electrical properties of the thin films were analysed using various techniques. X-ray diffraction patterns revealed that the thin films possessed hexagonal structures. The thin films were grown highly oriented to [001] direction of the hexagonal lattice. Raman peaks detected at 96 and 136 cm−1 were corresponding to the characteristic vibration modes of PbI2. The X-ray photoelectron spectroscopy detected the presence of Pb and I with core level binding energies corresponding to that in PbI2. Atomic force microcopy showed smooth and compact morphology of the thin films. From UV–Vis transmittance and reflectance spectral analysis,the bandgap of the thin films ∼2.3 eV was evaluated. The dark conductivity of the thin films was computed and the value decreased as the deposition time and spin speed increased. |
| format | Article |
| id | eprints-14755 |
| institution | UANL |
| language | English |
| publishDate | 2016 |
| publisher | Indian Academy of Sciences in collaboration with Indian National Science Academy |
| record_format | eprints |
| spelling | eprints-147552020-09-08T15:02:28Z http://eprints.uanl.mx/14755/ Growth and properties of lead iodide thin films by spin coating Acuña Leal, Daniel Arturo Krishnan, Bindu Shaji, Sadasivan Sepúlveda, S. Menchca, J. L. TJ Ingeniería Mecánica In this study, lead iodide (PbI2) thin films were deposited on glass substrates by spin coating a solution of 0.2 M PbI2 dissolved in dimethylformamide, varying the deposition time and the spin speed. The thickness of the thin films decreased with increase in spin speed and deposition time, as examined by profilometry measurements. The structure, morphology, optical and electrical properties of the thin films were analysed using various techniques. X-ray diffraction patterns revealed that the thin films possessed hexagonal structures. The thin films were grown highly oriented to [001] direction of the hexagonal lattice. Raman peaks detected at 96 and 136 cm−1 were corresponding to the characteristic vibration modes of PbI2. The X-ray photoelectron spectroscopy detected the presence of Pb and I with core level binding energies corresponding to that in PbI2. Atomic force microcopy showed smooth and compact morphology of the thin films. From UV–Vis transmittance and reflectance spectral analysis,the bandgap of the thin films ∼2.3 eV was evaluated. The dark conductivity of the thin films was computed and the value decreased as the deposition time and spin speed increased. Indian Academy of Sciences in collaboration with Indian National Science Academy 2016 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/14755/1/5.pdf http://eprints.uanl.mx/14755/1.haspreviewThumbnailVersion/5.pdf Acuña Leal, Daniel Arturo y Krishnan, Bindu y Shaji, Sadasivan y Sepúlveda, S. y Menchca, J. L. (2016) Growth and properties of lead iodide thin films by spin coating. Bulletin of materials science, 39 (6). pp. 1453-1460. ISSN 0250-4707 http://doi.org/10.1007/s12034-016-1282-z doi:10.1007/s12034-016-1282-z |
| spellingShingle | TJ Ingeniería Mecánica Acuña Leal, Daniel Arturo Krishnan, Bindu Shaji, Sadasivan Sepúlveda, S. Menchca, J. L. Growth and properties of lead iodide thin films by spin coating |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Growth and properties of lead iodide thin films by spin coating |
| title_full | Growth and properties of lead iodide thin films by spin coating |
| title_fullStr | Growth and properties of lead iodide thin films by spin coating |
| title_full_unstemmed | Growth and properties of lead iodide thin films by spin coating |
| title_short | Growth and properties of lead iodide thin films by spin coating |
| title_sort | growth and properties of lead iodide thin films by spin coating |
| topic | TJ Ingeniería Mecánica |
| url | http://eprints.uanl.mx/14755/1/5.pdf |
| work_keys_str_mv | AT acunalealdanielarturo growthandpropertiesofleadiodidethinfilmsbyspincoating AT krishnanbindu growthandpropertiesofleadiodidethinfilmsbyspincoating AT shajisadasivan growthandpropertiesofleadiodidethinfilmsbyspincoating AT sepulvedas growthandpropertiesofleadiodidethinfilmsbyspincoating AT menchcajl growthandpropertiesofleadiodidethinfilmsbyspincoating |