☆ 4.8 Article

Spatiotemporal Mapping of Efficient Chiral Induction by Helicene-Type Additives in Copolymer Thin Films

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Review Chemistry, Physical

Circular Polarization of Luminescence as a Tool To Study Molecular Dynamical Processes

Stefan C. J. Meskers

Summary: Circular polarization of luminescence is observed in chiral molecules, molecular aggregates, and molecular materials. Recent experimental results show that electroluminescence from chiral molecular materials can achieve nearly complete circular polarization. A comprehensive description of the origin of circular polarization is still missing, but quantum field theory may provide some clues for understanding this phenomenon.

CHEMPHOTOCHEM (2022)

添加到收藏夹

Article Multidisciplinary Sciences

Mapping the broadband circular dichroism of copolymer films with supramolecular chirality in time and space

Marius Morgenroth et al.

Summary: This study demonstrates 100-femtosecond time-resolved CD mapping of polyfluorene copolymer thin films, revealing a supramolecular origin of their chiroptical response. The approach simultaneously tracks changes in CD and absorption response, providing detailed insights into electronic relaxation processes in chiral systems. The transient CD signal from the supramolecular response allows for quantification of singlet-singlet annihilation and charge-pair formation processes, while spatial mapping of chiral domains with a resolution of 50 μm is achieved on femtosecond time scales.

NATURE COMMUNICATIONS (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Supramolecular Chirality Transfer toward Chiral Aggregation: Asymmetric Hierarchical Self-Assembly

Shuai Huang et al.

Summary: This paper summarizes recent studies on chirality transfer induced self-assembly based on various supramolecular interactions, and discusses the impact of different environments and system states on the expression of chirality, as well as the driving forces that facilitate chiral bias and the role of supramolecular interactions.

ADVANCED SCIENCE (2021)

添加到收藏夹

Article Chemistry, Physical

Ultrafast excited-state dynamics of thin films consisting of helicene-like molecules based on dibenzo[c,h]acridine

Marius Morgenroth et al.

Summary: The excited-state dynamics of bridged and non-bridged chiral helicene-like bidibenzo[c,h]acridines deposited as a thin film were investigated. Photoexcitation at 370 nm populates the S-1 state, with internal conversion and intersystem crossing being the main decay pathways. Despite high excitation fluence, there were no indications for higher-order processes, and coherent acoustic phonons were observed in the films post photoexcitation.

MOLECULAR PHYSICS (2021)

添加到收藏夹

Article Materials Science, Multidisciplinary

Strongly Circularly Polarized Crystalline and β-Phase Emission from Poly(9,9-dioctylfluorene)-Based Deep-Blue Light-Emitting Diodes

Li Wan et al.

Summary: This article presents highly efficient circularly polarized polymer light-emitting diodes (CP-PLEDs) for deep-blue emission by blending achiral luminescent polymer with helically chiral molecules. State-of-the-art device performance was achieved with different phase structures, showcasing high current efficiency and emission dissymmetry. The study provides insight into mechanisms underlying strong circularly polarized emission from excitonically coupled polymer chains in solid-state devices.

ADVANCED OPTICAL MATERIALS (2021)

添加到收藏夹

Article Chemistry, Physical

Ultrafast UV-Vis Transient Absorption and Circular Dichroism Spectroscopy of a Polyfluorene Copolymer Showing Large Chiral Induction

Marius Morgenroth et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2020)

添加到收藏夹

Article Nanoscience & Nanotechnology

Highly Efficient Inverted Circularly Polarized Organic Light-Emitting Diodes

Li Wan et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

添加到收藏夹

Review Chemistry, Multidisciplinary

Chiroptical Properties in Thin Films of π-Conjugated Systems

Gianluigi Albano et al.

CHEMICAL REVIEWS (2020)

添加到收藏夹

Article Multidisciplinary Sciences

Natural optical activity as the origin of the large chiroptical properties in π-conjugated polymer thin films

Jessica Wade et al.

NATURE COMMUNICATIONS (2020)

添加到收藏夹

Article Chemistry, Multidisciplinary

Phosphahelicenes: From Chiroptical and Photophysical Properties to OLED Applications

Keihann Yavari et al.

CHEMISTRY-A EUROPEAN JOURNAL (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

Inverting the Handedness of Circularly Polarized Luminescence from Light-Emitting Polymers Using Film Thickness

Li Wan et al.

ACS NANO (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

3D Helix Engineering in Chiral Photonic Materials

Augustinusj J. Kragt et al.

ADVANCED MATERIALS (2019)

添加到收藏夹

Article Chemistry, Organic

Modulation of Chiroptical Properties in a Series of Helicene-like Compounds

Laure Guy et al.

JOURNAL OF ORGANIC CHEMISTRY (2019)

添加到收藏夹

Article Chemistry, Physical

Ultrafast Broadband Transient Absorption and Circular Dichroism Reveal Relaxation of a Chiral Copolymer

Mirko Scholz et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2019)

添加到收藏夹

Article Chemistry, Physical

Circular Intensity Differential Scattering Reveals the Internal Structure of Polymer Fibrils

Ashish Sharma et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2019)

添加到收藏夹

Article Chemistry, Physical

Coherent acoustic phonon dynamics in chiral copolymers

Mirko Scholz et al.

STRUCTURAL DYNAMICS-US (2019)

添加到收藏夹

Article Multidisciplinary Sciences

Giant intrinsic circular dichroism of prolinol-derived squaraine thin films

Matthias Schulz et al.

NATURE COMMUNICATIONS (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

High Circular Polarization of Electroluminescence Achieved via Self-Assembly of a Light-Emitting Chiral Conjugated Polymer into Multidomain Cholesteric Films

Daniele Di Nuzzo et al.

ACS NANO (2017)

添加到收藏夹

Article Chemistry, Multidisciplinary

Large-Scale Synthesis of Helicene-Like Molecules for the Design of Enantiopure Thin Films with Strong Chiroptical Activity

Amina Bensalah-Ledoux et al.

CHEMISTRY-A EUROPEAN JOURNAL (2016)

添加到收藏夹

Article Multidisciplinary Sciences

Electrically tunable laser based on oblique heliconical cholesteric liquid crystal

Jie Xiang et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2016)

添加到收藏夹

Article Chemistry, Multidisciplinary

New fluorene-based chiral copolymers with unusually high optical activity in pristine and annealed thin films

Min Ju Cho et al.

RSC ADVANCES (2016)

添加到收藏夹

Article Acoustics

Physical mechanisms of coherent acoustic phonons generation by ultrafast laser action

Pascal Ruello et al.

ULTRASONICS (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

π-Helicenes Truncated to a Minimum: Access Through a Domino Approach Involving Multiple Carbopalladations and a Stille Coupling

Bastian Milde et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

Induction of Circularly Polarized Electroluminescence from an Achiral Light-Emitting Polymer via a Chiral Small-Molecule Dopant

Ying Yang et al.

ADVANCED MATERIALS (2013)

添加到收藏夹

Review Chemistry, Multidisciplinary

Helicenes: Synthesis and Applications

Yun Shen et al.

CHEMICAL REVIEWS (2012)

添加到收藏夹

Article Chemistry, Physical

Insights from Chiral Polyfluorene on the Unification of Molecular Exciton and Cholesteric Liquid Crystal Theories for Chiroptical Phenomena

Girish Lakhwani et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2012)

添加到收藏夹

Article Polymer Science

Molecular Weight Optimum in the Mesoscopic Order of Chiral Fluorene (Co)polymer Films

Robert Abbel et al.

MACROMOLECULES (2008)

添加到收藏夹

Article Chemistry, Multidisciplinary

Amplification of chirality: The sergeants and soldiers principle applied to dynamic hydrogen-bonded assemblies

LJ Prins et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2001)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.