☆ 4.6 Article

The effect of substituents and molecular aggregation on the room temperature phosphorescence of a twisted π-system

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Related references

Note: Only part of the references are listed.

Review Chemistry, Multidisciplinary

Halide-containing organic persistent luminescent materials for environmental sensing applications

Feiyang Li et al.

Summary: Recent years have seen significant progress in the development of organic persistent luminescent (OPL) materials, with a particular focus on their applications in environmental sensing. The review summarizes the current status of halide-containing OPL materials for environmental sensing, discussing photophysical processes, luminescence mechanisms, and applications such as sensing temperature, oxygen, H2O, UV light, and organic solvents. Challenges and future research opportunities in the field are also addressed, aiming to provide guidance for material design of OPL sensors and exploring new directions for organic optoelectronics applications.

CHEMICAL SCIENCE (2022)

Add to Collection

Article Materials Science, Multidisciplinary

Color-Tunable Dual Persistent Emission Via a Triplet Exciton Reservoir for Temperature Sensing and Anti-Counterfeiting

Feiyang Li et al.

Summary: This study proposes an effective strategy to achieve dual persistent emission by utilizing the triplet excited state in single-molecule derivatives. Experimental data shows that this material can provide long-lived excitons for room temperature phosphorescence and thermally activated delayed fluorescence in the aggregate state, with emission color tunable by introducing different types of atoms.

ADVANCED OPTICAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Unveiling the crucial contributions of electrostatic and dispersion interactions to the ultralong room-temperature phosphorescence of H-bond crosslinked poly(vinyl alcohol) films

Deliang Wang et al.

Summary: This study investigates the incorporation of organic phosphors into a PVA matrix to achieve room-temperature phosphorescent materials. It reveals that electrostatic and dispersion interactions play crucial roles in determining the ultralong RTP properties, shedding light on the nature of non-covalent interactions in doping PVA systems. Moreover, by simply modifying the active groups of organic phosphors, the researchers successfully achieve an ultralong RTP lifetime, providing new guiding principles for exploring amorphous organic RTP systems.

MATERIALS HORIZONS (2022)

Add to Collection

Review Chemistry, Multidisciplinary

Recent advances in room temperature phosphorescence of crystalline boron containing organic compounds

Hannah E. Hackney et al.

Summary: This mini-review discusses recent literature on room temperature phosphorescence (RTP) of crystalline boroorganic compounds, analyzing the connections between molecular structure, intermolecular interactions, and resulting phosphorescence.

AGGREGATE (2022)

Add to Collection

Article Optics

Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence

Xiao Wang et al.

Summary: This study presents metal-free organic phosphors with efficient triplet exciton harvesting, exhibiting a low detection limit and potential application in X-ray radiography. These findings offer a promising alternative to incumbent inorganic scintillators and provide opportunities for development of flexible, stretchable X-ray detectors and imagers for non-destructive radiography testing and medical imaging.

NATURE PHOTONICS (2021)

Add to Collection

Article Chemistry, Analytical

Ultralong and Color-Tunable Room-Temperature Phosphorescence Based on Commercial Melamine for Anticounterfeiting and Information Recognition

Yanming Miao et al.

Summary: The study revealed that commercially available MEL has color-tunable and excellent OURTP characteristics, with potential applications in anticounterfeiting and information identification.

ANALYTICAL CHEMISTRY (2021)

Add to Collection

Review Materials Science, Multidisciplinary

Recent Advances of Cocrystals with Room Temperature Phosphorescence

Manjeet Singh et al.

Summary: Organic phosphorescent materials have gained attention for their potential in various functional applications. By designing and modulating their weak spin-orbit coupling, highly active triplet excitons, and ultrafast deactivation, these materials can exhibit long-lived room temperature phosphorescence characteristics. Organic cocrystals formed through noncovalent interactions have diverse phosphorescent properties, sparking wide interest.

ADVANCED OPTICAL MATERIALS (2021)

Add to Collection

Review Chemistry, Inorganic & Nuclear

Diverse emission properties of transition metal complexes beyond exclusive single phosphorescence and their wide applications

Kai Li et al.

Summary: The luminescence properties of transition metal complexes have been harnessed for various applications, with recent reports revealing novel emission behaviors and mechanisms. These findings suggest the potential for further exploration and exploitation of the photophysical properties of transition metal complexes.

COORDINATION CHEMISTRY REVIEWS (2021)

Add to Collection

Article Chemistry, Physical

Substituent Effects in Organic Luminogens with Room Temperature Phosphorescence

Qiuyan Liao et al.

Summary: The introduction of different substituents can modulate the RTP effect and enhance the performance of organic materials. Minor differences between substituents can significantly alter the molecular packing in aggregated states, facilitating improved RTP performance.

CHEMPHOTOCHEM (2021)

Add to Collection

Review Chemistry, Inorganic & Nuclear

Strategies for combining triplet-triplet annihilation upconversion sensitizers and acceptors in a host matrix

Waqas Ahmad et al.

Summary: This review article summarizes the latest advances in triplet-triplet annihilation upconversion (TTA-UC), covering aspects such as substrate patterns, excited-state engineering, and potential applications, aiming to extend the research scope of this technology.

COORDINATION CHEMISTRY REVIEWS (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Photooxidation-Driven Purely Organic Room-Temperature Phosphorescent Lysosome-Targeted Imaging

Hua-Jiang Yu et al.

Summary: The construction of host-guest-binding-induced phosphorescent supramolecular assemblies is an increasingly significant topic in biomaterial research. Through photooxidation-driven purely organic room-temperature phosphorescence, specific biospecies and physiological events in living cells can be tracked using supramolecular organelle identification.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Add to Collection

Article Multidisciplinary Sciences

Rational design of pyrrole derivatives with aggregation-induced phosphorescence characteristics for time-resolved and two-photon luminescence imaging

Jianhui Yang et al.

Summary: The paper introduces a class of aggregation-induced emission fluorescence probes, solving the issue of background signal interference in imaging by using AIEgen room-temperature phosphors with long emission lifetimes, developed through the introduction of an aromatic carbonyl to a tetraphenylpyrrole molecule. These materials exhibit promising properties for biological imaging and diversify the existing pool of bioimaging agents, with the potential for inspiring the development of bioprobes in the future.

NATURE COMMUNICATIONS (2021)

Add to Collection

Review Materials Science, Multidisciplinary

Persistent Room-Temperature Phosphorescence from Purely Organic Molecules and Multi-Component Systems

Zhu Wu et al.

Summary: This review discusses organic molecular materials that exhibit long triplet lifetimes at room temperature, examining whether they originate from a molecular or multi-component system. In purely organic phosphors, heteroatoms are typically introduced into the backbone to enhance the singlet-triplet ISC rate constant. In multi-component systems, the implementation of strategies such as host-guest interactions, polymer matrix, copolymerization, and supramolecular assembly create a rigid matrix that restricts nonradiative pathways, resulting in ultralong RTP.

ADVANCED OPTICAL MATERIALS (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Halogenation of a twisted non-polar π-system as a tool to modulate phosphorescence at room temperature

Giliandro Farias et al.

Summary: Halogenation of a twisted three-fold symmetric hydrocarbon with F, Cl or Br leads to modulation of triplet-triplet annihilation and dual phosphorescence, with one being thermally activated and the other persistent and visible. The room temperature phosphorescence is highly unusual given the absence of lone-pair-contributing heteroatoms.

CHEMICAL SCIENCE (2021)

Add to Collection

Review Chemistry, Multidisciplinary

Recent progress on pure organic room temperature phosphorescent polymers

Hao Gao et al.

Summary: Pure organic room temperature phosphorescence (RTP) materials are developing rapidly and are considered valuable resources with great potential in various fields. The emergence of pure organic RTP polymer systems based on the excellent properties of polymers has attracted significant attention. The huge molecular weight and long-chain intertwined structure of polymers make them a focus for RTP emission research.

AGGREGATE (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Controllable photoactivated organic persistent room-temperature phosphorescence for information encryption and visual temperature detection

Pengfei She et al.

Summary: This study presents a molecular design strategy for controlling the persistent room-temperature phosphorescence behavior of organic luminophores by introducing various substituent groups, allowing for fine control of responsive behaviors such as photoactivation speeds and emission decay times upon UV excitation. Crystal analyses and simulated calculations demonstrate that variations in molecular stacking upon photoirradiation are responsible for different persistent RTP behaviors. Additionally, one luminophore exhibits tunable persistent RTP from blue to green with changing temperatures, and successful information encryption and visual temperature detection of these molecules were achieved.

CELL REPORTS PHYSICAL SCIENCE (2021)

Add to Collection

Article Materials Science, Multidisciplinary

Designing organic room temperature phosphorescence with ultralong lifetime by substituent modification

Bing Fang et al.

Summary: This study designed three carbazole-based compounds with variable room temperature phosphorescent lifetimes, demonstrating the importance of small energy gap and pure pi-pi* configuration for promoting ultralong phosphorescent lifetime. Among them, CBM-OCH3 showed the longest phosphorescent lifetime due to its H-aggregation packing structure for stabilizing triplet excitons. These compounds have potential applications in the field of anti-counterfeiting.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

Add to Collection

Review Chemistry, Multidisciplinary

Efficient metal-free organic room temperature phosphors

Aakash D. Nidhankar et al.

Summary: The innovative transformation of organic luminescent materials has led to the exciting research field of ultralong room-temperature phosphorescence, with credit to rational design and continuous effort. Various strategies in the past decade have successfully extended the lifetime of organic systems, indicating a promising future for these materials.

CHEMICAL SCIENCE (2021)

Add to Collection

Article Nanoscience & Nanotechnology

Highly Efficient Organic Afterglow from a 2D Layered Lead-Free Metal Halide in Both Crystals and Thin Films under an Air Atmosphere

Shuming Yang et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Add to Collection

Review Chemistry, Inorganic & Nuclear

Halogen bonding in room-temperature phosphorescent materials

Weizhou Wang et al.

COORDINATION CHEMISTRY REVIEWS (2020)

Add to Collection

Article Chemistry, Multidisciplinary

Persistent Room Temperature Phosphorescence from Triarylboranes: A Combined Experimental and Theoretical Study

Zhu Wu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Add to Collection

Review Nanoscience & Nanotechnology

Room-temperature phosphorescence from organic aggregates

Weijun Zhao et al.

NATURE REVIEWS MATERIALS (2020)

Add to Collection

Review Chemistry, Multidisciplinary

Access to the triplet excited states of organic chromophores

Devika Sasikumar et al.

CHEMICAL SOCIETY REVIEWS (2020)

Add to Collection

Article Chemistry, Multidisciplinary

Persistent Solid-State Phosphorescence and Delayed Fluorescence at Room Temperature by a Twisted Hydrocarbon

Cristian A. M. Salla et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Add to Collection

Article Chemistry, Organic

Impact of Methoxy Substituents on Thermally Activated Delayed Fluorescence and Room-Temperature Phosphorescence in All Organic Donor-Acceptor Systems

Jonathan S. Ward et al.

JOURNAL OF ORGANIC CHEMISTRY (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Achieving Dual Persistent Room-Temperature Phosphorescence from Polycyclic Luminophores via Inter-/Intramolecular Charge Transfer

Feiyang Li et al.

ADVANCED OPTICAL MATERIALS (2019)

Add to Collection

Article Materials Science, Multidisciplinary

Achievement of persistent and efficient organic room-temperature phosphorescence with temperature-response by adjusting the proportion of excited-state configurations in coupled molecules

Junru Chen et al.

JOURNAL OF MATERIALS CHEMISTRY C (2019)

Add to Collection

Article Chemistry, Multidisciplinary

One-step synthesis of cyclic compounds towards easy room-temperature phosphorescence and deep blue thermally activated delayed fluorescence

Yingyuan Hu et al.

CHEMICAL COMMUNICATIONS (2018)

Add to Collection

Article Multidisciplinary Sciences

The influence of the molecular packing on the room temperature phosphorescence of purely organic luminogens

Jie Yang et al.

NATURE COMMUNICATIONS (2018)

Add to Collection

Article Multidisciplinary Sciences

Ultralong room temperature phosphorescence from amorphous organic materials toward confidential information encryption and decryption

Yan Su et al.

SCIENCE ADVANCES (2018)

Add to Collection

Article Chemistry, Multidisciplinary

Afterglow Organic Light-Emitting Diode

Ryota Kabe et al.

ADVANCED MATERIALS (2016)

Add to Collection

Article Chemistry, Multidisciplinary

SHELXT - Integrated space-group and crystal-structure determination

George M. Sheldrick

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES (2015)

Add to Collection

Review Chemistry, Multidisciplinary

Recent progress in metal-organic complexes for optoelectronic applications

Hui Xu et al.

CHEMICAL SOCIETY REVIEWS (2014)

Add to Collection

Article Chemistry, Physical

Robust fitting techniques in the chain of spheres approximation to the Fock exchange: The role of the complementary space

Robert Izsak et al.

JOURNAL OF CHEMICAL PHYSICS (2013)

Add to Collection

Article Chemistry, Physical

An overlap fitted chain of spheres exchange method

Robert Izsak et al.

JOURNAL OF CHEMICAL PHYSICS (2011)

Add to Collection

Article Chemistry, Multidisciplinary

Effect of the Damping Function in Dispersion Corrected Density Functional Theory

Stefan Grimme et al.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2011)

Add to Collection

Article Chemistry, Applied

Solvent applications of 2-methyltetrahydrofuran in organometallic and biphasic reactions

David F. Aycock

ORGANIC PROCESS RESEARCH & DEVELOPMENT (2007)

Add to Collection

Review Chemistry, Physical

Efficient and accurate approximations to the molecular spin-orbit coupling operator and their use in molecular g-tensor calculations -: art. no. 034107

F Neese

JOURNAL OF CHEMICAL PHYSICS (2005)

Add to Collection

© Peeref 2019-2024. All rights reserved.