Revisit to power law decay of luminescence
| Autor: | Manish K. Sahai, A.K. Bakshi, Debabrata Datta |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Range (particle radiation) 010308 nuclear & particles physics Biophysics 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Power law Atomic and Molecular Physics and Optics Key factors 0103 physical sciences Rectangular potential barrier Atomic physics 0210 nano-technology Luminescence Constant (mathematics) Recombination Intensity (heat transfer) |
| Zdroj: | Journal of Luminescence. 195:240-246 |
| ISSN: | 0022-2313 |
| Popis: | Luminescence from an exposed sample often follows power-law decay I α t-k. I is luminescence intensity, t is time and k is constant. Experimentally range of k is from 0.5 to 2.0. In present study we explain full experimental range of k by considering a non rectangular potential barrier between trap and recombination centre. This study establishes that shape of potential barrier between trap and recombination centre is one of the key factors in explaining power-law decay of luminescence. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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