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Deactivation Processes: Jablonski Diagram

Deactivation Processes: Jablonski Diagram

Luminescence, the emission of light by a substance that has absorbed energy, is a process that involves the interaction of molecules with light. The energy-level diagram, or Jablonski diagram, is a graphical representation of these interactions, illustrating the various states and transitions a molecule can undergo. In a typical Jablonski diagram, the lowest horizontal line represents the ground-state energy of the molecule, which is usually a singlet state. This state represents the energies...

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Updated: Oct 22, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

原子分解した単分子トリプレート quenching

Jinbo Peng¹, Sophia Sokolov², Daniel Hernangómez-Pérez³

¹Institute for Experimental and Applied Physics and Regensburg Center for Ultrafast Nanoscopy (RUN), University of Regensburg, 93040 Regensburg, Germany. jinbo.peng@ur.de jascha.repp@ur.de.

Science (New York, N.Y.)

|August 26, 2021

まとめ

この要約は機械生成です。

研究者たちはペンタセンの単一の分子のトリプル寿命を測定し近くの酸素分子が寿命を大幅に短縮することを発見しましたこの研究は,高度な材料での応用のために分子スピン相互作用の制御を可能にします.

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Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Published on: November 2, 2009

関連する実験動画

Last Updated: Oct 22, 2025

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage

Single-Molecule Dwell-Time Analysis of Restriction Endonuclease-Mediated DNA Cleavage

Published on: February 7, 2021

Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules

Published on: November 2, 2009

科学分野:

物理化学
表面科学
分子物理学

背景:

非均衡のトリプル状態は,光触媒,有機光伏,光ダイナミック療法などのアプリケーションに不可欠です.
これらの技術を最適化するために分子三重状態の理解と制御は不可欠です

研究の目的:

単一のペンタセン分子のトリプルライフサイクルを,原子解像度で断熱表面で直接測定する.
ペンタセンのトリプル生命期に共吸収された酸素分子の影響を調査する.
分子配列とトリプル状態の消火との相関を確立する.

主な方法:

原子力顕微鏡 (AFM) と統合された電子ポンプ探査法の開発と応用.
ペンタセンと酸素分子の正確な配置のための単一分子操作技術を使用します.
分子構成の原子解像度の特徴と三重体の寿命への影響

主要な成果:

ペンタセンの個々の分子のトリプレットの寿命の直接測定.
酸素分子がペンタセンの近くにあるときに観測されるトリプル生命周期の有意な消火.
特定の分子配列とトリプル状態の消火度の間の正確な相関が確立された.

結論:

この研究は,単一の分子における長寿命のトリプレット状態を電気的に取り扱う方法を示しています.
原子スケールの操作と寿命測定は,局所的なスピン-スピン相互作用に関する新しい洞察を提供します.
このアプローチは,高度な量子と材料のアプリケーションのための分子特性の設計と制御の道を開きます.