Protonable pyrimidine derivative for white light emission

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107396-107399 ◽  
Author(s):  
Sylvain Achelle ◽  
Julián Rodríguez-López ◽  
Nolwenn Cabon ◽  
Françoise Robin-le Guen
Keyword(s):  
Thin Film ◽  
White Light ◽  
Light Emission ◽  
Pyrimidine Derivative ◽  
White Light Emission ◽  
Protonated Forms

The protonation of a blue emitting pyrimidine resulted in the formation of an orange emissive acidified form. In adequate proportion of neutral and protonated forms, white light emission is observed both in solution and in polystyrene thin film.

scholarly journals Towards white light emission from a hybrid thin film of a self-assembled ternary samarium(iii) complex

2020 ◽  
Vol 44 (15) ◽  
pp. 5673-5683 ◽  
Author(s):  
Rashid Ilmi ◽  
Sevgi Kansız ◽  
Nawal K. Al-Rasbi ◽  
Necmi Dege ◽  
Paul R. Raithby ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Hybrid Thin Film ◽  
Color Tunability ◽  
Self Assembled

A new samarium(iii) complex, [Sm(hfaa)3(Py-Im)], has been prepared and fabricated into thin films which show color tunability from violet to orange depending on the concentration of doping within the film.

A soluble conjugated porous organic polymer: efficient white light emission in solution, nanoparticles, gel and transparent thin film

2017 ◽  
Vol 53 (7) ◽  
pp. 1257-1260 ◽  
Author(s):  
Pragyan Pallavi ◽  
Sujoy Bandyopadhyay ◽  
Jesna Louis ◽  
Arundhati Deshmukh ◽  
Abhijit Patra
Keyword(s):  
Thin Film ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Organic Polymer ◽  
Porous Organic Polymer ◽  
Solution Processable

A multifunctional, solution processable, ultramicroporous polymer employed for white light emission in solution, nanoparticles, a gel and a transparent thin film.

White light emission and optical gains from a Si nanocrystal thin film

2015 ◽  
Vol 26 (47) ◽  
pp. 475203 ◽  
Author(s):  
Dong-Chen Wang ◽  
Hong-Chen Hao ◽  
Jia-Rong Chen ◽  
Chi Zhang ◽  
Jing Zhou ◽  
...  
Keyword(s):  
Thin Film ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Si Nanocrystal

scholarly journals White Light Emission from Thin-Film Samples of ZnO Nanocrystals, Eu3+ and Tb3+ Ions Embedded in an SiO2 Matrix

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1997 ◽  
Author(s):  
Vivek Mangalam ◽  
Kantisara Pita
Keyword(s):  
Thin Film ◽  
White Light ◽  
Light Emission ◽  
Emission Spectra ◽  
White Light Emission ◽  
Thin Film Sample ◽  
Film Sample ◽  
Colour Space ◽  
Light Emitting ◽  
Zno Nanocrystals

In this work, a method was developed to determine the concentration of Eu3+ and Tb3+ ions in a thin-film sample of SiO2, co-doped with ZnO-nanocrystals (ZnO-nc), to produce a sample of any desired colour in the International Commission on Illumination (CIE) colour space. Using this method, a white light emitting sample was fabricated. The thin-film sample combines red, green and blue emissions from the Eu3+ ions, Tb3+ ions and ZnO-nc, respectively, to create white light or light of any desired colour. The emissions at 614 nm and 545 nm from Eu3+ and Tb3+ ions, respectively, is due to the energy transfer from the excited ZnO-nc to the rare-earth (RE) ions. In this way, only a single excitation wavelength is needed to excite the ZnO-nc, Eu3+ and Tb3+ ions in the sample to produce emission of a desired colour from the sample. We developed an empirical 4th-degree polynomial equation to determine the concentrations of Eu3+ and Tb3+ ions to produce light of any desired colour in the CIE colour space. Based on the above empirical equation, the concentration of Eu3+ and Tb3+ ions for a white light emitting sample was found to be 0.012 and 0.024 molar fractions, respectively. The white light emission from the sample was confirmed by fabricating the sample using the low-cost sol–gel process. The stimulated emission spectra and the experimental emission spectra of the white light sample fit very well. The results presented in this work are important to develop energy efficient solid state lighting devices.

Blue metal–organic framework encapsulated denatured R-phycoerythrin proteins for a white-light-emitting thin film

2020 ◽  
Vol 8 (1) ◽  
pp. 240-246 ◽  
Author(s):  
Xiaobin Wang ◽  
Zhuoyi Li ◽  
Wen Ying ◽  
Danke Chen ◽  
Peipei Li ◽  
...  
Keyword(s):  
Thin Film ◽  
White Light ◽  
Light Emission ◽  
Metal Organic Framework ◽  
White Light Emission ◽  
High Quality ◽  
Light Emitting ◽  
Denatured Protein ◽  
Metal Organic ◽  
Organic Framework

Impregnating one denatured protein with dual color emissions in a blue metal organic framework thin film for high quality white light emission.

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