Efficient Light‐Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace

Li, Chuanqi; Zhang, Jing; Zhang, Shiyong; Zhao, Yan

doi:10.1002/anie.201812146

Cited by 77 publications

(44 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Simultaneously, the AIEgen's fluorescence emission peaked at 507 nm increases, indicating highly efficient energy transfer from the LC to the AIEgen, which is beneficial for boosting the fluorescent image contrast. The energy transfer efficiency ( Φ ET ) can be calculated as follows:

true Φ_{ET} = 1 - I_{DA} / I_{D}

…”

Section: Resultssupporting

confidence: 78%

Crosstalk‐Free Patterning of Cooperative‐Thermoresponse Images by the Synergy of the AIEgen with the Liquid Crystal

Zhao

et al. 2020

Angewandte Chemie

View full text Add to dashboard Cite

Patterning multiple images within a single element without crosstalk can significantly increase the information capacity and security, but it is challenging to enable the response capability in each image. Now, the patterning of crosstalk‐free yet cooperative‐thermoresponse images (holographic and fluorescent images) is successfully achieved by designing a liquid crystal (LC)/AIEgen system with a unique synergy. The AIEgen's fluorescence intensity is controlled by the LC, while the LC's phase transition is in turn promoted by the AIEgen. The fluorescent image contrast is significantly boosted by efficient energy transfer (ΦET: 96 %) from the LC to the AIEgen. The AIEgen's photocyclization for fluorescent patterning occurs in a zero‐order kinetic manner and can be completed within several minutes when assisted by the LC. The photocyclization conversion is quantitatively dependent on the aggregation size: α∼exp(‐d), and able to reach as high as 98 %.

show abstract

true Φ_{ET} = 1 - I_{DA} / I_{D}

…”

Section: Resultssupporting

confidence: 78%

Crosstalk‐Free Patterning of Cooperative‐Thermoresponse Images by the Synergy of the AIEgen with the Liquid Crystal

Zhao

et al. 2020

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

“…1b, S6 and S7 †). [41][42][43][44] The TEM images of the DFMs clearly demonstrated the dandelion ower-like structures with seed SCMs located at the shell, acting as dandelion seeds (Fig. 1c).…”

Section: Resultsmentioning

confidence: 93%

Dandelion flower-like micelles

Yao

Zhu

et al. 2020

Chem. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Additionally, the relative orientation of the D and A transition dipoles has a great impact on the FRET process . Hence, the fine control and tuning of the weak intermolecular dipole–dipole interactions is a promising approach to obtain dual emission bands (from the donor as well as the acceptor) for the development of organic white light emitters . Noncovalent supramolecular assemblies like gel matrix, micellar environment, polymer matrix, etc., have been widely employed for the generation of white light through FRET .…”

Section: Tuning Of Fluorescence Resonance Energy Transfer (Fret)mentioning

confidence: 99%

“…However, single excitation wavelength resulting emission from each of the dyes or chromophoric units is challenging . Tuning the fluorescence through encapsulation of single or multiple fluorophores in the supramolecular assembly of gels or micelles is one of the facile means to generate white light …”

Section: Introductionmentioning

confidence: 99%

Molecular Engineering Approaches Towards All‐Organic White Light Emitting Materials

Kundu

Pallavi

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

White light emitting (WLE) materials are of increasing interesto wing to their promising applicationsi na rtificial lighting, display devices, molecular sensors, and switches.I n this context,o rganic WLE materials cater to the interesto f the scientific community owing to their promising features like color purity,l ong-term stability,s olutionp rocessability, cost-effectiveness,a nd low toxicity.T he typical methodf or the generation of white light is to combine three primary (red, green, and blue) or the two complementary (e.g., yellow and blue or red and cyan) emissive units covering the whole visible spectralw indow (400-800 nm). The judicious choice of molecular buildingb locks and connecting them through either strong covalentb onds or assembling through weakn oncovalent interactions are the key to achieve enhanced emissions panning the entire visible region.In the present review article, moleculare ngineering approaches for the development of all-organic WLE materials are analyzed in view of different photophysical processes like fluorescencer esonance energy transfer (FRET), excitedstate intramolecular protont ransfer (ESIPT), charget ransfer (CT), monomer-excimer emission, triplet-state harvesting, etc. The key aspect of tuning the molecular fluorescence under the influence of pH, heat, and host-guest interactions is also discussed. The white light emission obtained from small organic molecules to supramolecular assemblies is presented,i ncluding polymers, micelles,a nd also employing covalent organic frameworks. The state-of-the-art knowledge in the field of organic WLE materials, challenges, and future scope are delineated.

show abstract

Efficient Light‐Harvesting Systems with Tunable Emission through Controlled Precipitation in Confined Nanospace

Cited by 77 publications

References 65 publications

Crosstalk‐Free Patterning of Cooperative‐Thermoresponse Images by the Synergy of the AIEgen with the Liquid Crystal

Crosstalk‐Free Patterning of Cooperative‐Thermoresponse Images by the Synergy of the AIEgen with the Liquid Crystal

Dandelion flower-like micelles

Molecular Engineering Approaches Towards All‐Organic White Light Emitting Materials

Contact Info

Product

Resources

About