Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films
Anisotropic picosecond photovoltaic responses were observed in lanthanum doped manganite LaxCa1-xMnO3 (x=0.67 and 0.4) thin films, which were deposited on miscut LaSrAlO4 substrates under ultraviolet pulsed laser irradiation without external bias. The 10%–90% rise time and the full width at half max...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/436910 |
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| author | Zhiqing Lu Hao Ni Jianfeng Xi Xiaoming Li Kun Zhao |
| author_facet | Zhiqing Lu Hao Ni Jianfeng Xi Xiaoming Li Kun Zhao |
| author_sort | Zhiqing Lu |
| collection | DOAJ |
| description | Anisotropic picosecond photovoltaic responses were observed in lanthanum doped manganite LaxCa1-xMnO3 (x=0.67 and 0.4) thin films, which were deposited on miscut LaSrAlO4 substrates under ultraviolet pulsed laser irradiation without external bias. The 10%–90% rise time and the full width at half maximum of La0.67Ca0.33MnO3 were 470 and 585 ps, respectively, and those of La0.4Ca0.6MnO3 were 220 and 515 ps. The photovoltage sensitivities of La0.67Ca0.33MnO3 and La0.4Ca0.6MnO3, which are sensitive to the concentrations of lanthanum of the samples, are 0.28 V/mJ and 3.47 V/mJ, respectively. The photosensitivity in the films deposited on MgO is higher than that in those deposited on LaSrAlO4 substrates, for it has a big lattice mismatch. These results should open a route for the application of lanthanum doped manganite as an ultrafast photodetector material. |
| format | Article |
| id | doaj-art-51032a01700c427fbda70300cc4774e0 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-51032a01700c427fbda70300cc4774e02025-02-03T01:09:25ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/436910436910Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite FilmsZhiqing Lu0Hao Ni1Jianfeng Xi2Xiaoming Li3Kun Zhao4College of Science, China University of Petroleum, Beijing 102249, ChinaCollege of Science, China University of Petroleum, Beijing 102249, ChinaCollege of Science, China University of Petroleum, Beijing 102249, ChinaDepartment of Physics, The Chinese University of Hong Kong, Hong KongCollege of Science, China University of Petroleum, Beijing 102249, ChinaAnisotropic picosecond photovoltaic responses were observed in lanthanum doped manganite LaxCa1-xMnO3 (x=0.67 and 0.4) thin films, which were deposited on miscut LaSrAlO4 substrates under ultraviolet pulsed laser irradiation without external bias. The 10%–90% rise time and the full width at half maximum of La0.67Ca0.33MnO3 were 470 and 585 ps, respectively, and those of La0.4Ca0.6MnO3 were 220 and 515 ps. The photovoltage sensitivities of La0.67Ca0.33MnO3 and La0.4Ca0.6MnO3, which are sensitive to the concentrations of lanthanum of the samples, are 0.28 V/mJ and 3.47 V/mJ, respectively. The photosensitivity in the films deposited on MgO is higher than that in those deposited on LaSrAlO4 substrates, for it has a big lattice mismatch. These results should open a route for the application of lanthanum doped manganite as an ultrafast photodetector material.http://dx.doi.org/10.1155/2013/436910 |
| spellingShingle | Zhiqing Lu Hao Ni Jianfeng Xi Xiaoming Li Kun Zhao Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films International Journal of Photoenergy |
| title | Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films |
| title_full | Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films |
| title_fullStr | Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films |
| title_full_unstemmed | Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films |
| title_short | Picosecond Photovoltaic Response in Tilted Lanthanum Doped Manganite Films |
| title_sort | picosecond photovoltaic response in tilted lanthanum doped manganite films |
| url | http://dx.doi.org/10.1155/2013/436910 |
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