Article
Chemistry, Multidisciplinary
Xian-Yin Dai, Yu-Yang Hu, Yonghui Sun, Man Huo, Xiaoyun Dong, Yu Liu
Summary: A cascaded supramolecular assembly is used to construct an efficient RTP-fluorescence switch, which demonstrates reversible photoswitching between room-temperature phosphorescence (RTP) and delayed fluorescence. The switch shows excellent RTP-fluorescence photoswitching property accompanied by multicolor tunable long-lived emission, and can be reversibly modulated over multiple cycles. This switch has potential applications in designing novel advanced light-responsive RTP materials in aqueous environments.
Article
Chemistry, Multidisciplinary
Man Huo, Xian-Yin Dai, Yu Liu
Summary: An ultrahigh supramolecular cascaded phosphorescence-capturing aggregate was constructed by multivalent co-assembly of CB[7] and SC4AD, showing efficient phosphorescence energy transfer and functioning as an imaging agent for multicolor cell labeling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Santosh Kumar Behera, Soo Young Park, Johannes Gierschner
Summary: The passage discusses the growing interest in dual-emission materials for materials and life science applications, highlighting the lack of a systematic overview of the underlying processes. It classifies dual-emission phenomena and describes relevant mechanisms for materials science, while also providing references for further reading and inspiration for future designs of dual-emission materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Xin-Kun Ma, Wei Zhang, Zhixue Liu, Haoyang Zhang, Bing Zhang, Yu Liu
Summary: A high quantum yield ultralong organic phosphorescent material was successfully constructed using purely organic supramolecular pins. This new design overcomes electrostatic repulsion and promotes intramolecular charge transfer, resulting in a significant improvement in phosphorescence quantum yield. The supramolecular pins also have potential applications in multicolor photoluminescence and targeted phosphorescence imaging of mitochondria.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Qi Ou, Yihan Shao, Zhigang Shuai
Summary: This study proposes a mechanism for promoting reverse intersystem crossing through light-matter coupling, which can broaden the scope of molecular design and facilitate the development of highly efficient cavity-promoted light-emitting materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jing Liu, Ziang Chen, Jia Hu, Hongxia Sun, Yan Liu, Zhongyi Liu, Jinpeng Li
Summary: Organic solid-state materials with p-RTP properties have achieved significant progress. Three light-emitting compounds based on Himpc phosphor were deliberately synthesized and displayed different room-temperature phosphorescence performances. Particularly, Cd-impc and Zn-impc exhibited a time-resolved color-changing afterglow phenomenon, with Zn-impc showing novel color-changing afterglow performance.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Maksym Matviyishyn, Agata Bialonska, Bartosz Szyszko
Summary: Crownphyrins are a class of hybrid macrocycles combining structural features of porphyrin and crown ethers. They possess the ability to bind neutral and ionic guests. The presence of dynamic covalent imine linkages connecting the dipyrrin segment with the ether chain enables unusual coordination behavior of crownphyrins.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Hui-Juan Wang, Wen-Wen Xing, Heng-Yi Zhang, Wen-Wen Xu, Yu Liu
Summary: A highly efficient phosphorescent light-harvesting system, constructed by assembling cucurbit[8]uril, dyes, and a molecular switch, is reported. The system exhibits efficient light emission and can be applied for lysosome targeted imaging and information encryption.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Irene Regeni, Rituparno Chowdhury, Kai Terlinden, Shinnosuke Horiuchi, Julian J. J. Holstein, Sascha Feldmann, Guido H. H. Clever
Summary: This article introduces a strategy to engineer the stacking of diketopyrrolopyrrole (DPP) dyes based on non-statistical metallosupramolecular self-assembly. Different discrete assemblies can be formed by adding Pd(II) to the DPP backbone equipped with nitrogen-based donors, distinguished by the number of π-stacked chromophores. We obtained and systematically investigated a Pd3L6 three-ring, a heteroleptic Pd2L2L’2 ravel composed of two crossing DPPs (flanked by two carbazoles), and two unprecedented self-penetrated motifs (a Pd2L3 triple and a Pd2L4 quadruple stack). With increasing counts of stacked chromophores, UV/Vis absorptions red-shift and emission intensities decrease, except for compound Pd2L2L’2, which has an exceptional photoluminescence quantum yield of 51% explainable by an intra-assembly FRET process. The modular design and synthesis of soluble multi-chromophore building blocks offer potential for the preparation of nanodevices and materials with applications in sensing, photo-redox catalysis, and optics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Aakash D. D. Nidhankar, Goudappagouda, Premkumar D. Kothavade, Sangram D. Dongre, Sairam Dnyaneshwar Veer, Soumya Ranjan Dash, Kavya Rajeev, K. N. Narayanan Unni, Kadhiravan Shanmuganathan, Sukumaran Santhosh Babu
Summary: The synthetic feasibility and excellent luminescence features of organic molecules have attracted attention for lighting applications. In this study, we report a series of solvent-free organic liquids that exhibit cyan to red thermally activated delayed fluorescence. The high processability of the liquid emitters has improved compatibility for developing multicolor emissive objects using 3D printing. This demonstration provides a processable alternate emissive material suitable for large-area lighting and display applications.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Dan Li, Zhenjiang Liu, Manman Fang, Jie Yang, Ben Zhong Tang, Zhen Li
Summary: In this study, an ultralong room-temperature phosphorescence (RTP) system in water was achieved through assembly based on a β-cyclodextrin host and p-biphenylboronic acid guest. The long-lived phosphorescence depends on the host-guest inclusion as well as intermolecular hydrogen bonding interactions, suppressing nonradiative relaxation and avoiding quenching effectively. Additionally, the addition of fluorescent dyes allows for tuning the afterglow color through radiative energy transfer of reabsorption.
Article
Nanoscience & Nanotechnology
Hongwei Wu, Glib Baryshnikov, Artem Kuklin, Boris F. Minaev, Bin Wu, Long Gu, Liangliang Zhu, Hans Agren, Yanli Zhao
Summary: Enhancing phosphorescence efficiency can be achieved by modifying molecular conformation and crystal growth conditions, with symmetric 3,3 conformers showing higher efficiency compared to unsymmetrical 2,4 conformers. The crystal protection effect and conformation impact play crucial roles in the phosphorescence performance of the molecules.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yipei Wang, Yingshan Lai, Tianqi Ren, Jiahong Tang, Yang Gao, Yutao Geng, Jiali Zhang, Xinxian Ma
Summary: A method for preparing new artificial light-harvesting systems (ALHSs) based on supramolecular metallogels was proposed. The bi-benzimidazole compound (P) exhibited high selectivity toward Al3+ and could self-assemble into a stable supramolecular gel (P-gel). Two ALHSs were successfully prepared in this gel environment, where P-Al3+ assembly acts as the donor and BDP and Rh6G act as acceptors. The findings of this study will contribute to the design and fabrication of ALHSs.
Article
Chemistry, Inorganic & Nuclear
Sofiia K. Emashova, Aleksei A. Titov, Alexander F. Smol'yakov, Andrey Yu Chernyadyev, Ivan A. Godovikov, Maria Godovikova, Pavel Dorovatovskii, Alexander A. Korlykov, Oleg A. Filippov, Elena S. Shubina
Summary: This study investigates the fluorescence properties of 3-trifluoromethyl-pyrazoles containing triphenylamine and carbazole groups, as well as their silver complexes, in both solution and solid state. The results show that the electronic coupling between triphenylamine substituent and pyrazole leads to fluorescence emission in solution, while the rigid structure of the N-ethyl carbazole substituent results in typical carbazole-centered fluorescence. Aggregation plays a major role in determining the emission properties in the solid state.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Sergio Ramirez-Barroso, Fernando Romeo-Gella, Jesus M. Fernandez-Garcia, Siyang Feng, Lara Martinez-Fernandez, David Garcia-Fresnadillo, Ines Corral, Nazario Martin, Reinhold Wannemacher
Summary: The intriguing photophysical properties of three curved nanographenes were investigated using time-resolved and temperature-dependent photoluminescence spectroscopy. The study found that CNG 7 and 8 exhibited dual fluorescence and phosphorescence at low temperature, as well as thermally activated delayed fluorescence in a narrow temperature range of 100-140 K.
ADVANCED MATERIALS
(2023)