Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film
In this work, the photoluminescence emission properties of CH3NH3PbBr3 perovskite crystals which encapsulated among the porous thin films of aluminum oxide are studied. These porous layers are made by electrochemical anodizing method. First, aluminum thin film has been deposited by magnetron sputter...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2022-05-01
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| Series: | Iranian Journal of Physics Research |
| Subjects: | |
| Online Access: | https://ijpr.iut.ac.ir/article_1763_16a68406044328e5f7973506bd098a69.pdf |
| _version_ | 1797894562087174144 |
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| author | Ali Nahani Sadegh Miri Elnaz Yazdani |
| author_facet | Ali Nahani Sadegh Miri Elnaz Yazdani |
| author_sort | Ali Nahani |
| collection | DOAJ |
| description | In this work, the photoluminescence emission properties of CH3NH3PbBr3 perovskite crystals which encapsulated among the porous thin films of aluminum oxide are studied. These porous layers are made by electrochemical anodizing method. First, aluminum thin film has been deposited by magnetron sputtering deposition method and then by changing anodic voltage, different patterns of porous aluminum oxide films are fabricated. Finally, CH3NH3PbBr3 nanocrystals are synthesized on the Al2O3 porous thin film by one step spin coating method. Morphological studies of porousaluminum oxide thin films are investigated by field emission scanning electron microscopy images and Atomic Force Microscope results. In order to study optical response of CH3NH3PbBr3 erovskite pto structural characteristics of porousthin films, photoluminescence spectroscopy has been employed too. By structural characterization, it is found that the number and the average diameter of the nano-pores are increased by anodic voltage raising. Also, the dependence of the emission properties of the encapsulated crystals on the size of the pores has been determined by the photoluminescence spectroscopy. So that, blue-shifted photoluminescence emission has been observed by the pores diameter reduction. Eventually, by comparing the results of structural and optical characterizations with Bruce model, the fabrication of CH3NH3PbBr3 perovskite nanocrystals within the patterned aluminum oxide mold is confirmed. |
| first_indexed | 2024-04-10T07:12:20Z |
| format | Article |
| id | doaj.art-ddb0a8dbc3a24250b5977abfee2d0a66 |
| institution | Directory Open Access Journal |
| issn | 1682-6957 2345-3664 |
| language | English |
| last_indexed | 2024-04-10T07:12:20Z |
| publishDate | 2022-05-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Iranian Journal of Physics Research |
| spelling | doaj.art-ddb0a8dbc3a24250b5977abfee2d0a662023-02-26T10:34:25ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572345-36642022-05-01221435410.47176/ijpr.22.1.412291763Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin filmAli Nahani0Sadegh Miri1Elnaz Yazdani2Department of Physics, Tarbiat Modares University, Tehran, IranIranian National Center for Laser Science and Technology, Tehran, IranDepartment of Physics, Tarbiat Modares University, Tehran, IranIn this work, the photoluminescence emission properties of CH3NH3PbBr3 perovskite crystals which encapsulated among the porous thin films of aluminum oxide are studied. These porous layers are made by electrochemical anodizing method. First, aluminum thin film has been deposited by magnetron sputtering deposition method and then by changing anodic voltage, different patterns of porous aluminum oxide films are fabricated. Finally, CH3NH3PbBr3 nanocrystals are synthesized on the Al2O3 porous thin film by one step spin coating method. Morphological studies of porousaluminum oxide thin films are investigated by field emission scanning electron microscopy images and Atomic Force Microscope results. In order to study optical response of CH3NH3PbBr3 erovskite pto structural characteristics of porousthin films, photoluminescence spectroscopy has been employed too. By structural characterization, it is found that the number and the average diameter of the nano-pores are increased by anodic voltage raising. Also, the dependence of the emission properties of the encapsulated crystals on the size of the pores has been determined by the photoluminescence spectroscopy. So that, blue-shifted photoluminescence emission has been observed by the pores diameter reduction. Eventually, by comparing the results of structural and optical characterizations with Bruce model, the fabrication of CH3NH3PbBr3 perovskite nanocrystals within the patterned aluminum oxide mold is confirmed.https://ijpr.iut.ac.ir/article_1763_16a68406044328e5f7973506bd098a69.pdfconfinementperovskitephotoluminescenceanodizeporous |
| spellingShingle | Ali Nahani Sadegh Miri Elnaz Yazdani Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film Iranian Journal of Physics Research confinement perovskite photoluminescence anodize porous |
| title | Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film |
| title_full | Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film |
| title_fullStr | Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film |
| title_full_unstemmed | Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film |
| title_short | Confining halide perovskite crystals CH3NH3PbBr3 in porous aluminum oxide thin film |
| title_sort | confining halide perovskite crystals ch3nh3pbbr3 in porous aluminum oxide thin film |
| topic | confinement perovskite photoluminescence anodize porous |
| url | https://ijpr.iut.ac.ir/article_1763_16a68406044328e5f7973506bd098a69.pdf |
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