Thermally stimulated luminescence studies of undoped and doped CaB₄O₇ compounds
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Thermally stimulated luminescence studies of undoped and doped CaB₄O₇ compounds
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| Creator |
Manam, J.
Sharma, S.K. |
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| Description |
Thermoluminescence of undoped and doped CaB₄O₇ with activators such as Cu and Mn has been investigated. The polycrystalline samples of undoped and doped CaB₄O₇ are prepared by melting method. The formation of CaB₄O₇ compound is checked by X-ray diffraction study and the compound is found to have orthorhombic structure at room temperature. The TSL studies of undoped CaB₄O₇ sample shows two glow peaks at 150°C and 265°C and one shoulder at around 190°C. The TSL studies of Cu doped CaB₄O₇ sample also shows two glow peaks at 160°C and 270°C and a shoulder at around 230°C whereas the TSL glow curves of Mn doped CaB₄O₇ has only one single strong glow peak at 135°C. A comparative TSL studies of these compounds shows that CaB₄O₇ compound doped with Mn is the most sensitive and the TSL intensity is enhanced by about 40 times when compared with the TSL intensity of undoped CaB₄O₇ compound. The trap parameters namely order of kinetics (b), activation energy (E) and frequency factor (s) associated with the 135°C glow peak of CaB₄O₇: Mn phosphor are determined using isothermal decay and glow curve shape (Chen's) methods. |
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| Date |
2017-05-28T16:47:28Z
2017-05-28T16:47:28Z 2003 |
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| Type |
Article
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| Identifier |
Thermally stimulated luminescence studies of undoped and doped CaB₄O₇ compounds / J. Manam, S.K. Sharma // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2003. — Т. 6, № 4. — С. 465-470. — Бібліогр.: 10 назв. — англ.
1560-8034 PACS: 78.60.Kn, 61.10.Nz http://dspace.nbuv.gov.ua/handle/123456789/118092 |
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| Language |
en
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| Relation |
Semiconductor Physics Quantum Electronics & Optoelectronics
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| Publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
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