Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots
We present photoluminescence (PL) measurements of two different, 3 monolayers and 12 monolayers (ml), CdTe self-assembled quantum dot (SAQD) samples. The spectra were recorded in the temperature range 20 K–300 K, with photoexcitation over the ZnTe barrier layer. PL spectra displayed two main emissio...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2009/358790 |
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| _version_ | 1832553212313337856 |
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| author | Nebojša Romčević Maja Romčević Radmila Kostić Dušanka Stojanović Aleksandra Milutinović Jelena Trajić Grzegorz Karczewski Robert Galazka |
| author_facet | Nebojša Romčević Maja Romčević Radmila Kostić Dušanka Stojanović Aleksandra Milutinović Jelena Trajić Grzegorz Karczewski Robert Galazka |
| author_sort | Nebojša Romčević |
| collection | DOAJ |
| description | We present photoluminescence (PL) measurements of two different, 3 monolayers and 12 monolayers (ml), CdTe self-assembled quantum dot (SAQD) samples. The spectra were recorded in the temperature range 20 K–300 K, with photoexcitation over the ZnTe barrier layer. PL spectra displayed two main emission bands. High-energy PL emission (E1) is ZnTe LO like phonon- (ωLO = 204.2 cm−1 (3 ml), ωLO = 207.3 cm−1 (12 ml)) assisted deexcitation. Dominant low-energy band (E2) presents the direct deexcitation to ground state of the CdTe quantum dots. |
| format | Article |
| id | doaj-art-9ce4c3baa11b4bae8853d17c47da0ed0 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-9ce4c3baa11b4bae8853d17c47da0ed02025-02-03T05:54:39ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2009-01-01200910.1155/2009/358790358790Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum DotsNebojša Romčević0Maja Romčević1Radmila Kostić2Dušanka Stojanović3Aleksandra Milutinović4Jelena Trajić5Grzegorz Karczewski6Robert Galazka7Institute of Physics, 11080 Belgrade, SerbiaInstitute of Physics, 11080 Belgrade, SerbiaInstitute of Physics, 11080 Belgrade, SerbiaInstitute of Physics, 11080 Belgrade, SerbiaInstitute of Physics, 11080 Belgrade, SerbiaInstitute of Physics, 11080 Belgrade, SerbiaInstitute of Physiscs, Polish Academy of Science, 02-668 Warsaw, PolandInstitute of Physiscs, Polish Academy of Science, 02-668 Warsaw, PolandWe present photoluminescence (PL) measurements of two different, 3 monolayers and 12 monolayers (ml), CdTe self-assembled quantum dot (SAQD) samples. The spectra were recorded in the temperature range 20 K–300 K, with photoexcitation over the ZnTe barrier layer. PL spectra displayed two main emission bands. High-energy PL emission (E1) is ZnTe LO like phonon- (ωLO = 204.2 cm−1 (3 ml), ωLO = 207.3 cm−1 (12 ml)) assisted deexcitation. Dominant low-energy band (E2) presents the direct deexcitation to ground state of the CdTe quantum dots.http://dx.doi.org/10.1155/2009/358790 |
| spellingShingle | Nebojša Romčević Maja Romčević Radmila Kostić Dušanka Stojanović Aleksandra Milutinović Jelena Trajić Grzegorz Karczewski Robert Galazka Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots International Journal of Photoenergy |
| title | Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots |
| title_full | Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots |
| title_fullStr | Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots |
| title_full_unstemmed | Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots |
| title_short | Photoluminescence Spectroscopy of CdTe/ZnTe Self-Assembled Quantum Dots |
| title_sort | photoluminescence spectroscopy of cdte znte self assembled quantum dots |
| url | http://dx.doi.org/10.1155/2009/358790 |
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