Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis
Free from scaling effect is highly desirable but yet challenging in lead-free BaTiO3 (denoted as BTO). In this work, we revisit the synthesis BTO nanocubes via hydrothermal route and provide an insight on the photoluminescence behavior of BTO nanocubes, whilst others focus on the reproducibility of...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer New York
2019
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/81697/1/Photoluminescence%20activity%20of%20BaTiO%D3%A1%20nanocubes%20via%20facile%20hydrothermal%20synthesis.pdf |
| _version_ | 1825951480441470976 |
|---|---|
| author | Hasbullah, Nurul Norfarina Chen, Soo Kien Tan, Kar Ban Talib, Zainal Abidin Liew, Josephine Ying Chyi Lee, Oon Jew |
| author_facet | Hasbullah, Nurul Norfarina Chen, Soo Kien Tan, Kar Ban Talib, Zainal Abidin Liew, Josephine Ying Chyi Lee, Oon Jew |
| author_sort | Hasbullah, Nurul Norfarina |
| collection | UPM |
| description | Free from scaling effect is highly desirable but yet challenging in lead-free BaTiO3 (denoted as BTO). In this work, we revisit the synthesis BTO nanocubes via hydrothermal route and provide an insight on the photoluminescence behavior of BTO nanocubes, whilst others focus on the reproducibility of BTO nanocubes. The crystallinity of the BTOs was enhanced when the as-synthesized powders underwent calcination at elevated temperatures (> 500 °C). A combination of X-ray diffraction (XRD) patterns and transmission electron microscopy (TEM) images affirms that the BTO nanostructures evolved from cubic to tetragonal and changing from pseudo-ellipsoid to nanocube with {100} sharp facets. The tunable optical band gaps (3.18–2.74 eV), Urbach tails in UV–Vis absorption spectra and the enhanced intensity of photoluminescence at violet wavelength (433.7 nm) indicate the presence of localized state. In order to sort out the origin of the localized state, either stems from structural disorder or surface state, time-resolved photoluminescence was carried out. The long decay of the time-resolved photoluminescence (> 100 ns) proves the dominant involvement of self-trapped states. This in turn narrows the band gap, thus facilitates photoluminescence excitation. |
| first_indexed | 2024-03-06T10:30:36Z |
| format | Article |
| id | upm.eprints-81697 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:30:36Z |
| publishDate | 2019 |
| publisher | Springer New York |
| record_format | dspace |
| spelling | upm.eprints-816972020-10-09T03:54:01Z http://psasir.upm.edu.my/id/eprint/81697/ Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis Hasbullah, Nurul Norfarina Chen, Soo Kien Tan, Kar Ban Talib, Zainal Abidin Liew, Josephine Ying Chyi Lee, Oon Jew Free from scaling effect is highly desirable but yet challenging in lead-free BaTiO3 (denoted as BTO). In this work, we revisit the synthesis BTO nanocubes via hydrothermal route and provide an insight on the photoluminescence behavior of BTO nanocubes, whilst others focus on the reproducibility of BTO nanocubes. The crystallinity of the BTOs was enhanced when the as-synthesized powders underwent calcination at elevated temperatures (> 500 °C). A combination of X-ray diffraction (XRD) patterns and transmission electron microscopy (TEM) images affirms that the BTO nanostructures evolved from cubic to tetragonal and changing from pseudo-ellipsoid to nanocube with {100} sharp facets. The tunable optical band gaps (3.18–2.74 eV), Urbach tails in UV–Vis absorption spectra and the enhanced intensity of photoluminescence at violet wavelength (433.7 nm) indicate the presence of localized state. In order to sort out the origin of the localized state, either stems from structural disorder or surface state, time-resolved photoluminescence was carried out. The long decay of the time-resolved photoluminescence (> 100 ns) proves the dominant involvement of self-trapped states. This in turn narrows the band gap, thus facilitates photoluminescence excitation. Springer New York 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81697/1/Photoluminescence%20activity%20of%20BaTiO%D3%A1%20nanocubes%20via%20facile%20hydrothermal%20synthesis.pdf Hasbullah, Nurul Norfarina and Chen, Soo Kien and Tan, Kar Ban and Talib, Zainal Abidin and Liew, Josephine Ying Chyi and Lee, Oon Jew (2019) Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis. Journal of Materials Science: Materials in Electronics, 30 (5). pp. 5149-5157. ISSN 0957-4522; ESSN: 1573-482X https://link.springer.com/article/10.1007%2Fs10854-019-00813-3 10.1007/s10854-019-00813-3 |
| spellingShingle | Hasbullah, Nurul Norfarina Chen, Soo Kien Tan, Kar Ban Talib, Zainal Abidin Liew, Josephine Ying Chyi Lee, Oon Jew Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title | Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title_full | Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title_fullStr | Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title_full_unstemmed | Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title_short | Photoluminescence activity of BaTiOӡ nanocubes via facile hydrothermal synthesis |
| title_sort | photoluminescence activity of batioӡ nanocubes via facile hydrothermal synthesis |
| url | http://psasir.upm.edu.my/id/eprint/81697/1/Photoluminescence%20activity%20of%20BaTiO%D3%A1%20nanocubes%20via%20facile%20hydrothermal%20synthesis.pdf |
| work_keys_str_mv | AT hasbullahnurulnorfarina photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis AT chensookien photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis AT tankarban photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis AT talibzainalabidin photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis AT liewjosephineyingchyi photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis AT leeoonjew photoluminescenceactivityofbatioӡnanocubesviafacilehydrothermalsynthesis |