Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots
The work focuses on the optical investigation of temperature-dependent recombination processes in small-sized PbSe/PbS core/shell colloidal quantum dots (CQDs) with core diameter of (2 – 2.5) nm and the shell thickness of (0.5 – 1.0) nm under air-free conditions and after air exposure. These CQDs h...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2014-06-01
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| Series: | Medžiagotyra |
| Subjects: | |
| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/6321 |
| _version_ | 1818853728340410368 |
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| author | Diana YANOVER Anna RUBIN-BRUSILOVSKI Richard ČAPEK Aldona SASHCHIUK Efrat LIFSHITZ |
| author_facet | Diana YANOVER Anna RUBIN-BRUSILOVSKI Richard ČAPEK Aldona SASHCHIUK Efrat LIFSHITZ |
| author_sort | Diana YANOVER |
| collection | DOAJ |
| description | The work focuses on the optical investigation of temperature-dependent recombination processes in small-sized PbSe/PbS core/shell colloidal quantum dots (CQDs) with core diameter of (2 – 2.5) nm and the shell thickness of (0.5 – 1.0) nm under air-free conditions and after air exposure. These CQDs have a tunable absorption edge around 1 μm and a rather narrow photoluminescence linewidth, their emission recombination process is characterized by the μs time-scale and by longer radiative lifetimes in the entire temperature range and especially at low temperatures (a 2.6-fold increase) as compared to the corresponding PbSe samples. The PbSe/PbS core/shell CQDs are oxidation-stable towards time-limited air exposure. <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.20.2.6321">http://dx.doi.org/10.5755/j01.ms.20.2.6321</a></p> |
| first_indexed | 2024-12-19T07:41:25Z |
| format | Article |
| id | doaj.art-49356090b7274cd4a142ff9db9136684 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-19T07:41:25Z |
| publishDate | 2014-06-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-49356090b7274cd4a142ff9db91366842022-12-21T20:30:27ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892014-06-0120214114310.5755/j01.ms.20.2.63213158Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum DotsDiana YANOVER0Anna RUBIN-BRUSILOVSKI1Richard ČAPEK2Aldona SASHCHIUK3Efrat LIFSHITZ4Technion - Israel Institue of TechnologyTechnion - Israel Institue of TechnologyTechnion - Israel Institue of TechnologyTechnion - Israel Institue of TechnologyTechnion - Israel Institue of TechnologyThe work focuses on the optical investigation of temperature-dependent recombination processes in small-sized PbSe/PbS core/shell colloidal quantum dots (CQDs) with core diameter of (2 – 2.5) nm and the shell thickness of (0.5 – 1.0) nm under air-free conditions and after air exposure. These CQDs have a tunable absorption edge around 1 μm and a rather narrow photoluminescence linewidth, their emission recombination process is characterized by the μs time-scale and by longer radiative lifetimes in the entire temperature range and especially at low temperatures (a 2.6-fold increase) as compared to the corresponding PbSe samples. The PbSe/PbS core/shell CQDs are oxidation-stable towards time-limited air exposure. <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.20.2.6321">http://dx.doi.org/10.5755/j01.ms.20.2.6321</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/6321small-sized CQDsPbSe/PbS core/shellsurface oxidationtemperature-dependent PLand PL dynamics |
| spellingShingle | Diana YANOVER Anna RUBIN-BRUSILOVSKI Richard ČAPEK Aldona SASHCHIUK Efrat LIFSHITZ Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots Medžiagotyra small-sized CQDs PbSe/PbS core/shell surface oxidation temperature-dependent PL and PL dynamics |
| title | Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots |
| title_full | Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots |
| title_fullStr | Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots |
| title_full_unstemmed | Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots |
| title_short | Temperature-Dependent Recombination Processes in Small-Sized PbSe/PbS Core/Shell Colloidal Quantum Dots |
| title_sort | temperature dependent recombination processes in small sized pbse pbs core shell colloidal quantum dots |
| topic | small-sized CQDs PbSe/PbS core/shell surface oxidation temperature-dependent PL and PL dynamics |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/6321 |
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