Mechanical force-induced luminescence enhancement and chromism of a nonplanar D–A phenothiazine derivative

2016 ◽  
Vol 4 (23) ◽  
pp. 5275-5280 ◽  
Author(s):  
Pengchong Xue ◽  
Jipeng Ding ◽  
Peng Chen ◽  
Panpan Wang ◽  
Boqi Yao ◽  
...  
Keyword(s):  
Mechanical Force ◽  
Phenothiazine Derivative ◽  
Luminescence Enhancement ◽  
Emission Enhancement ◽  
Fluorescence Color

A D–A phenothiazine derivative might change its fluorescence color from blue-green to yellow-green under mechanical force stimuli, accompanied by an emission enhancement.

Mechanochromism of a dumbbell D–π–A–π–D phenothiazine derivative

2019 ◽  
Vol 43 (33) ◽  
pp. 12957-12962 ◽  
Author(s):  
Sisi Wang ◽  
Lingbo Li ◽  
Kechang Li ◽  
Tong Zhang ◽  
Zhen Zhao ◽  
...  
Keyword(s):  
Phenothiazine Derivative ◽  
Π Stacking ◽  
Fluorescence Color ◽  
J Aggregates

A dumbbell D–π–A–π–D phenothiazine derivative changes its fluorescence color from orange to red under force stimuli due to π-stacking conversion between H- and J-aggregates.

Self-assembly of a fluorescent galunamide derivative and sensing of acid vapor and mechanical force stimuli

2017 ◽  
Vol 5 (44) ◽  
pp. 11496-11503 ◽  
Author(s):  
Pengchong Xue ◽  
Boqi Yao ◽  
Yanbing Shen ◽  
Hongqiang Gao
Keyword(s):  
Self Assembly ◽  
Mechanical Force ◽  
Acid Vapor ◽  
Fluorescence Color ◽  
Film State

A galunamide derivative can quantitatively sense acid vapor in a xerogel film state and change its fluorescence color under mechanical force stimuli.

Dimethylamine substituted bisbenzocoumarins: solvatochromic, mechanochromic and acidochromic properties

CrystEngComm ◽  
2018 ◽  
Vol 20 (36) ◽  
pp. 5432-5441 ◽  
Author(s):  
Shaojin Chen ◽  
Wei Liu ◽  
Zhaohai Ge ◽  
Wenxuan Zhang ◽  
Kun-Peng Wang ◽  
...  
Keyword(s):  
Mechanical Force ◽  
Color Changes ◽  
Fluorescence Color

Highly fluorescent emissive dimethylamine substituted bisbenzocoumarins (DB-Cns) show reversible fluorescence color changes under mechanical force stimuli and acidochromic properties.

scholarly journals Controlling upconversion luminescence patterns in space with red emission enhancement from a single fluoride microcrystal by tuning the excitation mode

RSC Advances ◽  
2019 ◽  
Vol 9 (31) ◽  
pp. 17537-17542 ◽  
Author(s):  
Qingyan Han ◽  
Zhu Lu ◽  
Wei Gao ◽  
Wanting Zhou ◽  
Jianxia Qi ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Emission Pattern ◽  
Luminescence Enhancement ◽  
Red Emission ◽  
Excitation Mode ◽  
Emission Enhancement ◽  
Red Luminescence

The UC luminescence patterns can be controlled from the flower-like emission pattern to the red flame-like irradiation pattern with a red luminescence enhancement for a single lanthanide-doped fluoride material by varying the excitation position.

Blue-shifted aggregation-induced enhancement of a Sn(iv) fluoride complex: the role of fluorine in luminescence enhancement

2020 ◽  
Vol 56 (67) ◽  
pp. 9648-9650
Author(s):  
Wooseok Ki ◽  
Kathleen Ngo ◽  
Phalguni Ghosh ◽  
Boris Averkiev ◽  
Gordan T. Reeves ◽  
...  
Keyword(s):  
Luminescence Enhancement ◽  
Aggregation Induced Emission ◽  
Fluoride Complex ◽  
Emission Efficiency ◽  
Emission Enhancement

A fluorinated Sn(iv) complex not only significantly enhances the emission efficiency, but also exhibits blue-shifted aggregation-induced emission enhancement (AIEE) properties.

Noble Metals Enhanced Frequency Conversion Luminescence of Ln3+ Ions Doped Glasses

2013 ◽  
Vol 815 ◽  
pp. 171-178 ◽  
Author(s):  
Yue Bo Hu ◽  
Jian Bei Qiu ◽  
Qing Jiao ◽  
Zhi Guo Song ◽  
Da Cheng Zhou ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Local Structure ◽  
Noble Metals ◽  
Frequency Conversion ◽  
Lanthanide Ions ◽  
External Approach ◽  
Luminescence Enhancement ◽  
Emission Enhancement ◽  
Trivalent Lanthanide ◽  
Doped Glasses

Luminescence of trivalent lanthanide ions (Ln3+) doped glasses is influenced by many factors. The emission enhancement of Ln3+ can be achieved either through an external approach or an internal adjustment. The external approaches mainly include application of metal nanoparticles, which changes the local structure, local filed and interaction with active ions. In this work, efforts to obtain luminescence enhancement in Ln3+ through introducing noble metals are reviewed. The merits of different processes are concluded.

Size-dependent emission of a dipole coupled to a metal nanoparticle

MRS Advances ◽  
2020 ◽  
Vol 5 (62) ◽  
pp. 3315-3325
Author(s):  
Viktoriia Savchuk ◽  
Arthur R. Knize ◽  
Pavlo Pinchuk ◽  
Anatoliy O. Pinchuk
Keyword(s):  
Numerical Analysis ◽  
Quantum Yield ◽  
Electric Dipole ◽  
Incident Radiation ◽  
Metal Nanoparticle ◽  
Plasmonic Nanoparticle ◽  
Size Dependent ◽  
Emission Enhancement ◽  
Electric Dipoles

AbstractWe present a systematic numerical analysis of the quantum yield of an electric dipole coupled to a plasmonic nanoparticle. We observe that the yield is highly dependent on the distance between the electric dipole and the nanoparticle, the size and permittivity of the nanoparticle, and the wavelength of the incident radiation. Our results indicate that enhancement of the quantum yield is only possible for electric dipoles coupled to a nanoparticle with a radius of 20 nm or larger. As the size of the nanoparticle is increased, emission enhancement occurs at wavelengths dependent on the coupling distance.

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