scholarly journals Synthesis and Luminescent Properties of Silicon Nanocrystals

2018 ◽  
Author(s):  
Antonio Coyopol-Solis ◽  
Tomás Díaz-Becerril ◽  
Godofredo García-Salgado ◽  
Santiago A. Cabañas-Tay ◽  
Liliana Palacios-Huerta ◽  
...  
Keyword(s):  
Silicon Nanocrystals ◽  
Luminescent Properties

Influence of HSiO1.5Sol−Gel Polymer Structure and Composition on the Size and Luminescent Properties of Silicon Nanocrystals

2009 ◽  
Vol 21 (22) ◽  
pp. 5426-5434 ◽  
Author(s):  
Eric J. Henderson ◽  
Joel A. Kelly ◽  
Jonathan G. C. Veinot
Keyword(s):  
Silicon Nanocrystals ◽  
Luminescent Properties ◽  
Polymer Structure

Luminescent properties of doped freestanding silicon nanocrystals embedded in MEH-PPV

2009 ◽  
Vol 93 (6-7) ◽  
pp. 774-778 ◽  
Author(s):  
Vladimir Švrček ◽  
Hiroyuki Fujiwara ◽  
Michio Kondo
Keyword(s):  
Silicon Nanocrystals ◽  
Luminescent Properties

scholarly journals Thermal Disproportionation for the Synthesis of Silicon Nanocrystals and Their Photoluminescent Properties

2021 ◽  
Vol 9 ◽  
Author(s):  
Yize Su ◽  
Chenhao Wang ◽  
Zijian Hong ◽  
Wei Sun
Keyword(s):  
Silicon Nanocrystals ◽  
Recent Progress ◽  
Luminescent Properties ◽  
High Availability ◽  
Synthetic Methods ◽  
Processing Conditions ◽  
Bulk Silicon ◽  
Precise Control ◽  
The Past ◽  
Effects Of Temperature

In the past decades, silicon nanocrystals have received vast attention and have been widely studied owing to not only their advantages including nontoxicity, high availability, and abundance but also their unique luminescent properties distinct from bulk silicon. Among the various synthetic methods of silicon nanocrystals, thermal disproportionation of silicon suboxides (often with H as another major composing element) bears the superiorities of unsophisticated equipment requirements, feasible processing conditions, and precise control of nanocrystals size and structure, which guarantee a bright industrial application prospect. In this paper, we summarize the recent progress of thermal disproportionation chemistry for the synthesis of silicon nanocrystals, with the focus on the effects of temperature, Si/O ratio, and the surface groups on the resulting silicon nanocrystals’ structure and their corresponding photoluminescent properties. Moreover, the paradigmatic application scenarios of the photoluminescent silicon nanocrystals synthesized via this method are showcased or envisioned.

Solvothermal fabrication and luminescent properties of nanoLuAG:Ce phosphors

2014 ◽  
Vol 9 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Lin Xing ◽  
Lianghui Qu ◽  
Qing He ◽  
Tong B. Tang ◽  
Linfeng Yang
Keyword(s):  
Luminescent Properties

Photoluminescence behavior of silicon nanocrystals: Role of surface chemistry and size

2008 ◽  
Author(s):  
Anoop Gupta ◽  
Folarin Erogbogbo ◽  
Mark T. Swihart ◽  
Hartmut Wiggers
Keyword(s):  
Surface Chemistry ◽  
Silicon Nanocrystals ◽  
Photoluminescence Behavior

Pump-Probe Measurements Using Silicon Nanocrystal Waveguides

2003 ◽  
Vol 770 ◽  
Author(s):  
Nathanael Smith ◽  
Max J. Lederer ◽  
Marek Samoc ◽  
Barry Luther-Davies ◽  
Robert G. Elliman
Keyword(s):  
Probe Beam ◽  
Time Resolution ◽  
Pump Beam ◽  
Silicon Nanocrystals ◽  
Continuous Wave ◽  
Optical Gain ◽  
Optical Pump ◽  
Time Resolved ◽  
Pump Probe ◽  
Probe Measurements

AbstractOptical pump-probe measurements were performed on planar slab waveguides containing silicon nanocrystals in an attempt to measure optical gain from photo-excited silicon nanocrystals. Two experiments were performed, one with a continuous-wave probe beam and a pulsed pump beam, giving a time resolution of approximately 25 ns, and the other with a pulsed pump and probe beam, giving a time resolution of approximately 10 ps. In both cases the intensity of the probe beam was found to be attenuated by the pump beam, with the attenuation increasing monotonically with increasing pump power. Time-resolved measurements using the first experimental arrangement showed that the probe signal recovered its initial intensity on a time scale of 45-70 μs, a value comparable to the exciton lifetime in Si nanocrystals. These data are shown to be consistent with an induced absorption process such as confined carrier absorption. No evidence for optical gain was observed.

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