scholarly journals Overcoming the Rate-Directionality Trade-off: A Room-Temperature Ultrabright Quantum Light Source

ACS Nano ◽  
2021 ◽  
Author(s):  
Hamza Abudayyeh ◽  
Annika Mildner ◽  
Dror Liran ◽  
Boaz Lubotzky ◽  
Lars Lüder ◽  
...  
Keyword(s):  
Light Source ◽  
Room Temperature ◽  
Trade Off ◽  
Quantum Light Source

Degradation in a Methyl-phenyl Co-Polymeric Polysilane for LED Applications

2003 ◽  
Vol 769 ◽  
Author(s):  
Asha Sharma ◽  
Deepak ◽  
Monica Katiyar ◽  
Satyendra Kumar ◽  
V. Chandrasekhar ◽  
...  
Keyword(s):  
Thin Films ◽  
Molecular Weight ◽  
Light Source ◽  
Room Temperature ◽  
Light Exposure ◽  
Room Temperature Photoluminescence ◽  
Pl Spectrum ◽  
Pl Intensity ◽  
Methyl Phenyl

AbstractThe optical degradation of polysilane copolymer has been studied in spin cast thin films and solutions using light source of 325 nm wavelength. The room temperature photoluminescence (PL) spectrum of these films show a sharp emission at 368 nm when excited with a source of 325 nm. However, the PL intensity deteriorates with time upon light exposure. Further the causes of this degradation have been examined by characterizing the material for its transmission behaviour and changes occurring in molecular weight as analysed by GPC data.

Study on Extraction Technology and Stability of Melanin from Banana Peel

2013 ◽  
Vol 815 ◽  
pp. 287-292
Author(s):  
Li Jing Min ◽  
Jing Fen Li
Keyword(s):  
Metal Ions ◽  
Light Source ◽  
Room Temperature ◽  
Ph Value ◽  
Orthogonal Test ◽  
Raw Material ◽  
Banana Peel ◽  
Extraction Temperature ◽  
Solution Ph ◽  
Extraction Technology

[Objectiv The aim is to study the extraction technology of melanin from banana peel, and discuss its stability. [Metho We used banana peel as raw material, the absorbance at 410 nm as the index, extracted melanin by base-acid method, and optimized the extraction technology by the single factor and orthogonal test. Then we discussed the melanins stability at different temperature, light source, pH value, metal ions, antioxidant and reducing agents.[Result The best extraction conditions of melanin is that, hydrochloric acid soak time 5 h, alkaline solution pH value 14, extracting time 20 min, extraction temperature 70 °C, absorbance value about 0.309 A. Melanin from banana peel is stable at high temperature, different light source irradiation, reducing agent coexist; but at room temperature, metal ions and oxidizing agent coexist, it is unstable. [Conclusio This study provided experimental basis for the optimization and development of melanin from banana peel.

A room temperature light source based on silicon nanowires

2016 ◽  
Vol 613 ◽  
pp. 59-63 ◽  
Author(s):  
M.J. Lo Faro ◽  
C. D'Andrea ◽  
E. Messina ◽  
B. Fazio ◽  
P. Musumeci ◽  
...  
Keyword(s):  
Light Source ◽  
Silicon Nanowires ◽  
Room Temperature

PhotoRAFT Polymerization of Vinylidene Fluoride Using a Household White LED as Light Source at Room Temperature

ChemPhotoChem ◽  
2019 ◽  
Vol 3 (11) ◽  
pp. 1095-1099 ◽  
Author(s):  
Qizhi Yang ◽  
Vincent Ladmiral ◽  
Bruno Améduri
Keyword(s):  
Light Source ◽  
Room Temperature ◽  
Vinylidene Fluoride ◽  
White Led

scholarly journals Silicon nanowire and carbon nanotube hybrid for room temperature multiwavelength light source

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Maria Josè Lo Faro ◽  
Cristiano D’Andrea ◽  
Elena Messina ◽  
Barbara Fazio ◽  
Paolo Musumeci ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Light Source ◽  
Room Temperature ◽  
Silicon Nanowire

Intensities in Raman spectra III. A photoelectric recording Raman spectrometer for intensity measurements

1956 ◽  
Vol 237 (1209) ◽  
pp. 186-196 ◽  
Keyword(s):  
Light Source ◽  
High Intensity ◽  
Room Temperature ◽  
Recording System ◽  
Photoelectric Recording ◽  
Intensity Measurements ◽  
Wide Range ◽  
Recording Potentiometer ◽  
Phase Sensitive ◽  
High Intensity Light

A description is given of a Raman apparatus designed primarily for intensity measurements by direct photo-electric recording. A special feature is a high- intensity light source with four Toronto-type mercury arcs. It is possible to use a variety of sample volumes and to make measurements on samples over a wide range of temperatures both above and below room temperature. Semi-quantitative polarization measurements can also be made. The recording system uses an E. M. I. eleven-stage photomultiplier cell with a. c. amplification at 285 c/s, followed by rectification in a phase-sensitive homodyne circuit. The output is fed to a Cambridge recording potentiometer. Details of calibration for intensity measurements are given and sample records are shown illustrating the various applications of the apparatus.

Numerical Simulation and Optimization for 900V 4H-SiC DiMOSFET Fabrication

2005 ◽  
Vol 483-485 ◽  
pp. 793-796 ◽  
Author(s):  
Sang Cheol Kim ◽  
Wook Bahng ◽  
Nam Kyun Kim ◽  
Eun Dong Kim ◽  
T. Ayalew ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Breakdown Voltage ◽  
Room Temperature ◽  
General Purpose ◽  
Half Cell ◽  
Trade Off ◽  
Simulation And Optimization ◽  
Edge Termination ◽  
Well Spacing ◽  
Simulation Results

We report the simulation results of 25µm half cell pitch vertical type 4H-SiC DiMOSFET using the general-purpose device simulator MINIMOS-NT. The best trade-off between breakdown voltage and on-resistance in terms of BFOM is around 19MW/cm2 with a p-well spacing 5µm. The specific on -resistance, RON, sp, simulated with VGS=10V and VDS=1V at room temperature, is around 22.76mWcm2. An 900V breakdown voltage is simulated with ion-implanted edge termination.

Line shape study of the carbon dioxide laser band Ι

2013 ◽  
Vol 91 (11) ◽  
pp. 924-936 ◽  
Author(s):  
Robab Hashemi ◽  
Hoimonti Rozario ◽  
Amr Ibrahim ◽  
Adriana Predoi-Cross
Keyword(s):  
Carbon Dioxide ◽  
Spectral Line ◽  
Light Source ◽  
Line Shape ◽  
Carbon Dioxide Laser ◽  
Room Temperature ◽  
Far Infrared ◽  
Spectral Lines ◽  
Line Intensities ◽  
Spectroscopic Instrumentation

The spectral line parameters of carbon dioxide have been measured in the laser band I (00011 ← 10001) centred at 10.4 μm. The spectra were recorded at room temperature using the spectroscopic instrumentation at the far-infrared beamline, Canadian Light Source, Saskatoon, Sask. The spectral line intensities, air- and self- broadened Lorentz half widths, and pressure-induced shift coefficients were retrieved for 48 spectral lines using a multispectrum fit technique (Benner et al. J. Quant. Spectrosc. Radiat. Transfer, 53, 705 (1995)). Line parameters were retrieved using the Voigt and speed-dependent Voigt models. The deviations between our results and other results reported in the literature and in the HITRAN08 (Rothman et al. J. Quant. Spectrosc. Radiat. Transfer, 110, 533 (2009)) database were examined and discussed. The effect of errors in fitting channel spectra parameters was examined and found to be mitigated by the inclusion of channels in the multispectral fit.

A quantum light source

2008 ◽  
Vol 2 (8) ◽  
pp. 459-460
Author(s):  
Anna Demming
Keyword(s):  
Light Source ◽  
Quantum Light Source

Quantum Mechanical Single-Gold-Nanocluster Electroluminescent Light Source at Room Temperature

2004 ◽  
Vol 93 (14) ◽  
Author(s):  
Jose I. Gonzalez ◽  
Tae-Hee Lee ◽  
Michael D. Barnes ◽  
Yasuko Antoku ◽  
Robert M. Dickson
Keyword(s):  
Light Source ◽  
Room Temperature ◽  
Quantum Mechanical ◽  
Gold Nanocluster
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