Temperature-dependent spontaneous emission of PbS quantum dots inside photonic nanostructures at telecommunication wavelength

2017 ◽  
Vol 383 ◽  
pp. 555-560 ◽  
Author(s):  
Muhammad Danang Birowosuto ◽  
Masato Takiguchi ◽  
Aurelien Olivier ◽  
Landobasa Y. Tobing ◽  
Eiichi Kuramochi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Spontaneous Emission ◽  
Temperature Dependent ◽  
Telecommunication Wavelength ◽  
Pbs Quantum Dots

Temperature-Dependent Permeability of the Ligand Shell of PbS Quantum Dots Probed by Electron Transfer to Benzoquinone

2015 ◽  
Vol 6 (14) ◽  
pp. 2841-2846 ◽  
Author(s):  
Kenneth O. Aruda ◽  
Miriam Bohlmann Kunz ◽  
Mario Tagliazucchi ◽  
Emily A. Weiss
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Temperature Dependent ◽  
Ligand Shell ◽  
Pbs Quantum Dots

Temperature-dependent photoluminescence of PbS quantum dots in glass: Evidence of exciton state splitting and carrier trapping

2010 ◽  
Vol 82 (12) ◽  
Author(s):  
Maxim S. Gaponenko ◽  
Andrey A. Lutich ◽  
Nikolai A. Tolstik ◽  
Alexei A. Onushchenko ◽  
Alexander M. Malyarevich ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Exciton State ◽  
Temperature Dependent ◽  
Carrier Trapping ◽  
State Splitting ◽  
Pbs Quantum Dots ◽  
Temperature Dependent Photoluminescence

Temperature-dependent photoluminescence Stokes shift in PbS quantum dots

2013 ◽  
Vol 53 ◽  
pp. 63-65 ◽  
Author(s):  
Maxim S. Gaponenko ◽  
Nikolai A. Tolstik ◽  
Andrey A. Lutich ◽  
Alexei A. Onushchenko ◽  
Konstantin V. Yumashev
Keyword(s):  
Quantum Dots ◽  
Stokes Shift ◽  
Temperature Dependent ◽  
Pbs Quantum Dots ◽  
Temperature Dependent Photoluminescence

Size- and Temperature-Dependent Carrier Dynamics in Oleic Acid Capped PbS Quantum Dots

2013 ◽  
Vol 117 (4) ◽  
pp. 1887-1892 ◽  
Author(s):  
Peristera Andreakou ◽  
Mael Brossard ◽  
Chunyong Li ◽  
Maria Bernechea ◽  
Gerasimos Konstantatos ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Oleic Acid ◽  
Carrier Dynamics ◽  
Temperature Dependent ◽  
Pbs Quantum Dots

scholarly journals Time-Resolved and Temperature-Dependent Fractional Amplitude Contributions to the Broadband Emission of CdSe Quantum Dots

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1284
Author(s):  
Quinton Rice ◽  
Sangram Raut ◽  
Kyle Burney ◽  
Zygmunt Gryczynski ◽  
Ignacy Gryczynski ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Spontaneous Emission ◽  
Spectral Region ◽  
Band Edge ◽  
Band Edge Emission ◽  
Cdse Quantum Dots ◽  
Cdse Qds ◽  
Temperature Dependent ◽  
Time Resolved ◽  
Trapped States

The broadband spontaneous emission of excitons in CdSe quantum dots (QDs) is of great interest for the spectral imaging of living organisms or specific substances in the visible spectral region as well as in the biological optical window near the infrared spectral region. Semiconductor QDs that are near the bulk Bohr radius exhibit wide spectral tunability and high color purity due to quantum confinement of excitons within the dot boundary. However, with reducing dot size, the role of the surface-trapped state increases. The temperature-dependent photoluminescence (PL) confirms this with a ~3:1 emission intensity decrease from the surface-trapped state compared to the band edge. Large crystal irregularity, dangling ions, and foreign molecules can introduce new electronic transitions from surface-trapped states that provide broad spontaneous emission in the spectral region from visible to near IR in addition to the band edge emission. The time-resolved PL analyzed the fractional contributions of band edge, surface-trapped states, and possible intermediate trapped states to the broad spectral emission in order to characterize the CdSe QDs.

Synergistic Effect Between Halide Perovskites and PbS Quantum Dots

2020 ◽  
Author(s):  
Iván Mora-Seró ◽  
Sofia Masi ◽  
David Macias-Pinilla ◽  
Carlos Echeverría-Arrondo ◽  
Juan Ignacio Climente
Keyword(s):  
Quantum Dots ◽  
Synergistic Effect ◽  
Halide Perovskites ◽  
Pbs Quantum Dots
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