scholarly journals Efficient light harvesting of a luminescent solar concentrator using excitation energy transfer from an aggregation-induced emitter

2014 ◽  
Vol 16 (46) ◽  
pp. 25358-25363 ◽  
Author(s):  
James L. Banal ◽  
Kenneth P. Ghiggino ◽  
Wallace W. H. Wong
Keyword(s):  
Energy Transfer ◽  
Quantum Yield ◽  
Excitation Energy ◽  
Fluorescence Quantum Yield ◽  
Light Harvesting ◽  
Excitation Energy Transfer ◽  
Solar Concentrator ◽  
Luminescent Solar Concentrator ◽  
High Fluorescence ◽  
High Fluorescence Quantum Yield

Efficient light harvesting in a luminescent solar concentrator has been achieved by using excitation energy transfer from an aggregation-induced emitter to a high fluorescence quantum yield fluorophore.

Optimized excitation energy transfer in a three-dye luminescent solar concentrator

2007 ◽  
Vol 91 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Sheldon T. Bailey ◽  
Gretchen E. Lokey ◽  
Melinda S. Hanes ◽  
John D.M. Shearer ◽  
Jason B. McLafferty ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Excitation Energy Transfer ◽  
Solar Concentrator ◽  
Luminescent Solar Concentrator

A light-harvesting porphyrin-boron dipyrromethene conjugate

2013 ◽  
Vol 17 (08n09) ◽  
pp. 831-835 ◽  
Author(s):  
Jian-Yong Liu ◽  
Eugeny A. Ermilov ◽  
Beate Röder ◽  
Dennis K.P. Ng
Keyword(s):  
Energy Transfer ◽  
Quantum Yield ◽  
Excitation Energy ◽  
Click Chemistry ◽  
Light Harvesting ◽  
Excitation Energy Transfer ◽  
Boron Dipyrromethene ◽  
Porphyrin Core

Click chemistry has been successfully applied to prepare a conjugate of zinc(II) porphyrin with four boron dipyrromethene moieties. Upon excitation at the latter, an efficient excitation energy transfer to the porphyrin core occurs with an energy transfer quantum yield of 0.98, making this conjugate a promising light-harvesting system.

Organogels as scaffolds for excitation energy transfer and light harvesting

2008 ◽  
Vol 37 (1) ◽  
pp. 109-122 ◽  
Author(s):  
Ayyappanpillai Ajayaghosh ◽  
Vakayil K. Praveen ◽  
Chakkooth Vijayakumar
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Light Harvesting ◽  
Excitation Energy Transfer

Facile preparation of solid-state fluorescent carbon dots with high fluorescence quantum yield and application in rapid latent fingerprints detection

2021 ◽  
Author(s):  
Hai-Jiao Wang ◽  
Wan-Yi Hou ◽  
Jing Kang ◽  
Xin-Yu Zhai ◽  
Hongli Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Yield ◽  
Fluorescence Quantum Yield ◽  
Latent Fingerprints ◽  
Energy Resonance ◽  
Facile Preparation ◽  
High Fluorescence ◽  
Fluorescent Carbon Dots ◽  
High Fluorescence Quantum Yield ◽  
Resonance Transfer

Due to the direct π - π interaction and excessive energy resonance transfer, it is very challenging to prepare CDs with high fluorescence quantum yield (QY) in solid state. In...

scholarly journals Unusually large fluorescence quantum yield for a near-infrared emitting DNA-stabilized silver nanocluster

2020 ◽  
Vol 56 (47) ◽  
pp. 6384-6387
Author(s):  
Vlad A. Neacşu ◽  
Cecilia Cerretani ◽  
Mikkel B. Liisberg ◽  
Steven M. Swasey ◽  
Elisabeth G. Gwinn ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Fluorescence Quantum Yield ◽  
Near Infrared ◽  
Infrared Region ◽  
Silver Nanoclusters ◽  
Silver Nanocluster ◽  
Dna Strands ◽  
Near Infrared Region ◽  
High Fluorescence ◽  
High Fluorescence Quantum Yield

Silver nanoclusters stabilized by 5′-CCCGGAGAAG-3′ DNA strands display an unusually high fluorescence quantum yield in the near-infrared region.

scholarly journals Achieving remarkable and reversible mechanochromism from a bright ionic AIEgen with high specificity for mitochondrial imaging and secondary aggregation emission enhancement for long-term tracking of tumors

2020 ◽  
Vol 4 (3) ◽  
pp. 941-949 ◽  
Author(s):  
Xinzhe Yang ◽  
Qian Wang ◽  
Peiyu Hu ◽  
Chao Xu ◽  
Wenjing Guo ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Cancer Cells ◽  
Fluorescence Quantum Yield ◽  
High Specificity ◽  
Emission Enhancement ◽  
High Fluorescence ◽  
High Fluorescence Quantum Yield

An ionic AIEgen with high fluorescence quantum yield shows remarkable and reversible mechanochromism as well as excellent mitochondrial imaging of cancer cells and long-term tracking of tumors.

Changes of Excitation Spectra of in vivo Chlorophyll Fluorescence during Induction of Photosynthesis

1993 ◽  
Vol 48 (1-2) ◽  
pp. 46-51 ◽  
Author(s):  
Wieslaw I. Gruszecki ◽  
Zbigniew Krupa
Keyword(s):  
Energy Transfer ◽  
Chlorophyll Fluorescence ◽  
Quantum Yield ◽  
Dark Adaptation ◽  
Fluorescence Quantum Yield ◽  
Excitation Energy Transfer ◽  
Reaction Centers ◽  
Excitation Spectra ◽  
In Vivo Chlorophyll Fluorescence

Excitation spectra of chlorophyll fluorescence from intact rye leaves were registered at different steps of the induction of photosynthesis after dark adaptation. Analysis of these spectra indicates that at least two processes related to spectroscopic features are responsible for a fluorescence quenching. The first one, active during the first 100 s of illumination, was interpreted to consists in an overall decrease of the fluorescence quantum yield of antenna pigments and chlorophylls, in particular close to the reaction centers. The second type of a fluorescence decrease (between 100 s and 300 s of illumination) was found to be in large extent related to decrease of the rate of an excitation energy transfer between accessory xanthophyll pigments and chlorophylls emitting fluorescence. This latter molecular mechanism is discussed as being related to violaxanthin availability to de-epoxidation in the xanthophyll cycle.

How the Molecular Environment Controls Excitation Energy Transfer and Light Harvesting: a Quantum Mechanical Model

2007 ◽  
Author(s):  
Benedetta Mennucci ◽  
Carles Curutchet ◽  
Roberto Cammi ◽  
Gregory D. Scholes ◽  
Theodore E. Simos ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Mechanical Model ◽  
Light Harvesting ◽  
Excitation Energy Transfer ◽  
Quantum Mechanical ◽  
Quantum Mechanical Model
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