テトラフェニルエステンベースのテトラケーション性ディサイクロファンの集積誘発的放射と光集積機能
Yawen Li1, Yunhong Dong1, Lin Cheng1
1Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, National Demonstration Center for Experimental Chemistry Education, College of Chemistry and Materials Science , Northwest University , Xi'an 710069 , People's Republic of China.
Journal of the American Chemical Society
|April 27, 2019
まとめ
テトラフェニルエタン基のダイサイクロファンは,集積誘発放射 (AIE) を有する光ナノスフェアに自己組み立てられます. これらのAIE活性ナノスフィアは 染料を効率的に封じ込み 光を集めるシステムを構築し エネルギー転送を向上させます
科学分野:
- 超分子化学
- 材料科学
- 有機化学
背景:
- アグリゲーション誘発放射 (AIE) は,アグリゲーション時に分子が強い光を示す現象である.
- テトラフェニレチン (TPE) 誘導体はAIE特性で知られている.
- 制御された自己アセンブリを持つ機能的な超分子材料の開発は,高度なアプリケーションに不可欠です.
研究 の 目的:
- テトラフェニルエチンを基にした新型テトラケチオン型ダイサイクロファンを合成する
- 3次元超分子構造に 自己組み立てを調査する
- ライト・ハービシング・アプリケーションのためのAIEアクティブ・プラットフォームとしての潜在能力を探求する.
主な方法:
- テトラケチオン型ジクロファンの単体合成
- 構造確認のためのX線結晶構造分析と高解像度伝送電子顕微鏡 (HRTEM)
- 有機染料 (例えば,ナイル紅) をカプセル化して,光を集めるナノスフィアを形成する.
主要な成果:
- テトラフェニルエーテンを基にしたテトラケチオンのジクロファンの合成が成功しました (1).
- 水溶液中のAIE経由で,高光量子収量 (ΦF = 97.7%) を有する結晶ナノスフィアに自己組み立て (2).
- ナイルの赤をカプセル化して,大きな赤色シフト (Δλ = ∼70 nm),効率的なエネルギー転送 (ΦET = 77.5%),および高いアンテナ効果 (14.3) を示す光採集ナノスフィアの形成.
結論:
- 合成されたテトラケーション性ディサイクロファンは,強力なAIE活性超分子プラットフォームとして機能します.
- 自ら組み立てたナノスフィアは 効率的なエネルギー転送を通じて 光を集める優れた能力を示しています
- この研究は,センシングとエネルギーアプリケーションのための機能的な超分子材料の設計のための有望な戦略を提示しています.
関連する概念動画
Emission Spectra
75.9K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
75.9K
Aggregates Classification
984
Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
984
Positron Emission Tomography
7.0K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
7.0K
Light Acquisition
9.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.4K
Light as Energy
95.6K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
95.6K
Atomic Emission Spectroscopy: Lab
604
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
604


