Flexible NO2 Sensors Based on Colloidal Quantum Dots for Room-Temperature Detection

In this study, the photostability of a CdTeSe/ZnS colloidal single photon emitter with a wavelength of 800nm at room temperature was investigated. The second-order correlation function was much smaller than 0.1, which proved that the CdTeSe/ZnS single quantum dot at 800nm is a highly pure single-photon emitter. The effects of the irradiation time on the optical properties from single quantum dots were analyzed. As the illumination time increased, the emission of biexciton and multiexciton in the colloidal quantum dots increased, and the occurrence of Auger recombination increased.

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Electrically driven light emission from single colloidal quantum dots at room temperature

Applied Physics Letters ◽

10.1063/1.2425043 ◽

2007 ◽

Vol 90 (2) ◽

pp. 023110 ◽

Cited By ~ 25

Author(s):

Hao Huang ◽

August Dorn ◽

Vladimir Bulovic ◽

Moungi G. Bawendi

Keyword(s):

Quantum Dots ◽

Room Temperature ◽

Light Emission ◽

Colloidal Quantum Dots

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Room temperature single photon emission of colloidal quantum dots at 800nm

2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP) ◽

10.1109/icsidp47821.2019.9172897 ◽

2019 ◽

Author(s):

Siyue Jin ◽

Lu Qin ◽

Bibo Lin ◽

Jie Ren ◽

Xingsheng Xu

Keyword(s):

Quantum Dots ◽

Room Temperature ◽

Single Photon ◽

Photon Emission ◽

Colloidal Quantum Dots ◽

Single Photon Emission

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Polarized Single Photons from Colloidal Quantum Dots in Chiral Microcavities at Room Temperature

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference ◽

10.1364/iqec.2009.ituj5 ◽

2009 ◽

Author(s):

Luke J. Bissell ◽

Svetlana G. Lukishova ◽

Roger A. Smith ◽

Mayukh Lahiri ◽

Carlos R. Stroud, Jr. ◽

...

Keyword(s):

Quantum Dots ◽

Room Temperature ◽

Colloidal Quantum Dots ◽

Single Photons

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On the origin of stretched exponential (Kohlrausch) relaxation kinetics in the room temperature luminescence decay of colloidal quantum dots

The Journal of Chemical Physics ◽

10.1063/1.4978396 ◽

2017 ◽

Vol 146 (11) ◽

pp. 114102 ◽

Cited By ~ 28

Author(s):

E. N. Bodunov ◽

Yu. A. Antonov ◽

A. L. Simões Gamboa

Keyword(s):

Quantum Dots ◽

Room Temperature ◽

Luminescence Decay ◽

Colloidal Quantum Dots ◽

Relaxation Kinetics ◽

Stretched Exponential ◽

Room Temperature Luminescence

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Detection of mid-infrared by HgTe colloidal quantum dots at room temperature

2016 IEEE 16th International Conference on Nanotechnology (IEEE-NANO) ◽

10.1109/nano.2016.7751413 ◽

2016 ◽

Cited By ~ 1

Author(s):

Xin Tang ◽

King Wai Chiu Lai

Keyword(s):

Quantum Dots ◽

Room Temperature ◽

Colloidal Quantum Dots ◽

Mid Infrared

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Strong coupling of single quantum dots with low-refractive-index/high-refractive-index materials at room temperature

Science Advances ◽

10.1126/sciadv.abb3095 ◽

2020 ◽

Vol 6 (47) ◽

pp. eabb3095

Author(s):

Xingsheng Xu ◽

Siyue Jin

Keyword(s):

Quantum Dots ◽

Refractive Index ◽

Strong Coupling ◽

Room Temperature ◽

High Refractive Index ◽

Colloidal Quantum Dots ◽

Rabi Splitting ◽

Pl Spectra ◽

Dielectric Cavity ◽

Low Refractive Index

Strong coupling between a cavity and transition dipole moments in emitters leads to vacuum Rabi splitting. Researchers have not reported strong coupling between a single emitter and a dielectric cavity at room temperature until now. In this study, we investigated the photoluminescence (PL) spectra of colloidal quantum dots on the surface of a SiO2/Si material at various collection angles at room temperature. We measured the corresponding reflection spectra for the SiO2/Si material and compared them with the PL spectra. We observed PL spectral splitting and regarded it as strong coupling between colloidal quantum dots and the SiO2/Si material. Upper polaritons and lower polaritons exhibited anticrossing behavior. We observed Rabi splitting from single-photon emission in the dielectric cavity at room temperature. Through analysis, we attributed the Rabi splitting to strong coupling between quantum dots and bound states in the continuum in the low-refractive-index/high-refractive-index hybrid material.

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