アノド色電色分子における色制御のための新しい設計パラダイム

Dylan T Christiansen¹, Aimée L Tomlinson², John R Reynolds¹

¹School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Tech Polymer Network , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States.

Journal of the American Chemical Society

|February 23, 2019

まとめ

研究者らはクロス結合を用いた電気染色分子設計の新しい方法を開発した. この技術により,色の変化を正確に制御でき,無色溶液は酸化時に鮮やかまたは不透明な黒色になります.

科学分野:

材料科学
有機化学
電気化学

背景:

エレクトロクロミックな材料は適用された電圧で色を変えます
先進的なアプリケーションでは,電染色特性を調整することが不可欠です.
既存の方法では,色と安定性を正確に制御することができません.

研究の目的:

アノードで色付けする電染色分子のための新しい設計パラダイムを確立する.
電子エネルギーレベルとカラーチューニングの制御を示します.
調節可能で逆戻り可能な色変化のための材料を開発します.

主な方法:

分子設計で交互結合を活用した.
電子エネルギーレベルを制御する
ラジカルカチオン移行の操作された振動器の強さ.

主要な成果:

ニュートラルとラジカル・カチオン状態の独立した調整を達成した.
低エネルギー吸収のλ_maxが400 nm以上移動した.
無色 (UV吸収) の中性状態と活気のある (緑,黄色,赤) の根性カチオンが生成される.
無色から不透明の黒に変化する

結論:

交互結合は電色分子を設計するための強力な戦略です
精密な色制御と調節可能な吸収スペクトルは達成可能である.
開発された材料は,ダイナミックで不透明な黒いディスプレイとスマートウィンドウの可能性を示しています.

さらに関連する動画

11:22

Using Three-color Single-molecule FRET to Study the Correlation of Protein Interactions

Published on: January 30, 2018

10.6K

04:44

Visualizing Bacterial Motility Based on a Color Reaction

Published on: February 15, 2022

5.1K

関連する概念動画

03:02

Colors and Magnetism

14.1K

Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...

14.1K

01:24

Color Vision

1.5K

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.

1.5K

01:14

Changes in Skin Color: Clinical Perspectives

3.5K

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...

3.5K

01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

1.6K

A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...

1.6K

01:26

PD Controller: Design

650

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...

650

01:24

PI Controller: Design

1.2K

Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...