Article
Chemistry, Applied
Shalu Gupta, Marilyn Daisy Milton
Summary: A series of novel Y-shaped push-pull quinoxaline derivatives with quadrupolar and tripodal arrangement were designed, synthesized, and characterized, showing positive solvatochromism, aggregation induced emission enhancement, and reversible changes in spectral and visible colors in the presence of acid. Protonation of a tripodal derivative in chloroform solution led to white photo-luminescence, suggesting potential applications in white light emitting diodes.
Article
Materials Science, Multidisciplinary
Tsutomu Ishi-i, Rihoko Kichise, In Seob Park, Takuma Yasuda, Taisuke Matsumoto
Summary: Room temperature red phosphorescence in organic dyes is achieved through aggregation-induced intersystem crossing and heavy-atom effect, resulting in the stabilization of excited triplet state and acceleration of phosphorescence radiation.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Siyu Sun, Liangwei Ma, Jie Wang, Xiang Ma, He Tian
Summary: A set of metal-free room-temperature phosphorescence (RTP) systems were developed using brominated phenolsulfonephthaleine derivatives, which exhibited red light excitation and the highest phosphorescence quantum yield reported so far. The RTP emission could be controlled by adding acid and alkali alternately, and a logic operation with half-subtractor function and dual-channel response was constructed based on these properties.
NATIONAL SCIENCE REVIEW
(2022)
Article
Engineering, Environmental
Ting Zhang, Yanan Wu, Xiang Ma
Summary: Research on amorphous pure organic room-temperature phosphorescent materials with dual-emissive properties has led to the development of color-tunable RTP emission, including white-light emission, under different feeding ratios and excitation wavelengths. Additionally, time-dependent multicolor afterglow, including nearly white afterglow, can be observed. The RTP emission of the water-soluble acrylamide copolymers can be quenched by water, resulting in tunable emission colors under different humidity conditions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Hui Liu, Kun Zhang, Peng-Fu Gao, Jia-Hua Luo, Yu-Ying Jiang, Meng-Shu Zhou, Ting Li, Xue-Li Zhu, Hong-Ru Fu
Summary: Two Cd-based supramolecular coordination polymers with multiple luminescence emissions, including fluorescence and time- and temperature-dependent ultralong phosphorescence, have been successfully synthesized. One of the compounds exhibits a long-lived afterglow under ambient conditions, while the other shows nearly pure white-light emission. This is the first example of a luminescent coordination polymer with single-phase white-light emission and color-evolution RTP.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Liangwei Ma, Siyu Sun, Bingbing Ding, Xiang Ma, He Tian
Summary: A series of high intersystem crossing yield phosphors based on single-benzene structure were obtained in this study, showing efficient phosphorescence emission after being embedded into a polyvinyl alcohol matrix. Photo-switchable phosphorescence emission can be achieved by doping these molecules into a PMMA matrix.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yan Zhu, Yan Guan, Yuan Deng, Yifan Niu, Chaofan Ren, Chunye Long, Qiong Su, Ping Wang
Summary: In this study, two copolymers with different feeding ratios of carbazole-dibenzofuran, 4-bromo-1,8-naphthalimide, and N-iso-propylacrylamide were synthesized. The copolymers exhibited dual-mode white light emissions, including warm white afterglows and standard white afterglows. The introduction of fluorine (F) atoms into the polymer films improved the afterglow performance.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yoshimichi Shimomura, Gen-ichi Konishi
Summary: Multiple emission colors in solid-state organic fluorophores are important for improving light-emitting devices/materials. In this study, we synthesized two derivatives of di-bridged-distyrylbenzene that showed bright red-orange and red fluorescence in the solid state, respectively. The introduction of bridging structures and the suppression of intermolecular electronic interactions were responsible for the enhanced solid-state emissions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
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)
Article
Materials Science, Multidisciplinary
Jinming Song, Yuhang Zhou, Zhichao Pan, Ying Hu, Zhenyi He, He Tian, Xiang Ma
Summary: In this study, we have developed a series of single-component molecules crystals called dialkyl 4,40-oxalyldibenzoate (n-BZ) that exhibit efficient room temperature phosphorescence (RTP) emission, multilevel stimuli responsiveness, and elasticity or flexibility. We found that grinding or thermal annealing of crystalline n-BZ can induce a transition from single emission RTP to dual emission RTP, with a significant change in emission color. Additionally, we have achieved the largest RTP quantum yield ever recorded for organic RTP elastic crystals. Through experiments and theoretical calculations, we have determined that the multilevel stimuli responsiveness of n-BZ originates from the conformational transition of its excited state, while its elasticity is derived from weak intermolecular interactions. These findings provide a valuable molecular design and construction strategy for developing organic stimuli-responsive RTP materials.
Article
Chemistry, Physical
Dan Wang, Yufeng Xie, Xinghui Wu, Yunxiang Lei, Yunbing Zhou, Zhengxu Cai, Miaochang Liu, Huayue Wu, Xiaobo Huang, Yuping Dong
Summary: A series of organic host-guest materials with multifunctional luminescence were constructed, exhibiting three-color emission switching among cyan, white, and orange. The materials could be used as writable inks for advanced anticounterfeiting.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Yan Zheng, Zhonghao Wang, Jiawei Liu, Yongfeng Zhang, Liang Gao, Chang Wang, Xian Zheng, Qian Zhou, Yan Yang, Youbing Li, Hailong Tang, Lunjun Qu, Yanli Zhao, Chaolong Yang
Summary: A chemical strategy for constructing hydrogen-bonded frameworks in an aqueous environment is developed to fabricate long-lived room temperature phosphorescence (RTP) carbon dot crystals that can be excited by green light. The crystals exhibit long-lived phosphorescence under 500 nm excitation and are suitable for dopamine detection, extending the operation scope of long-lived RTP materials in biomarker detection by visible light excitation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Bibhisan Roy, Ivan Maisuls, Jianyu Zhang, Felix C. Niemeyer, Fabio Rizzo, Christoph Woelper, Constantin G. Daniliuc, Ben Zhong Tang, Cristian A. Strassert, Jens Voskuhl
Summary: The strategy of combining ns-fluorescence and ms-phosphorescence in small molecular materials with regioisomeric substitution patterns achieved white light emission across the entire visible spectrum, demonstrating high photoluminescence quantum yields and ultra-long phosphorescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Mao Komura, Takuji Ogawa, Yosuke Tani
Summary: The unsymmetrical heteroaromatic 1,2-diketone was found to exhibit organic room-temperature phosphorescence (RTP) in a solvent-free liquid state, resisting crystallization and remaining as a liquid for months. The flexible unsymmetrical diketone core can prevent nucleation and growth for the liquid-solid transition, with the phosphorescence being induced by liquefaction. This novel molecular system shows promising potential for the development of stimuli-responsive materials utilizing phase transitions.
Article
Materials Science, Multidisciplinary
Huaiying Huang, Yitian Jiang, Miaochang Liu, Wenbo Dai, Yunxiang Lei, Yan Guan, Qiuping Ding, Huayue Wu, Xiaobo Huang
Summary: This study develops a room-temperature afterglow doped material using fluorescent molecules containing olefinic bonds, and achieves color-tunable delayed fluorescence by adjusting the concentration of the third component.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Siyu Sun, Liangwei Ma, Jie Wang, Xiang Ma, He Tian
Summary: A set of metal-free room-temperature phosphorescence (RTP) systems were developed using brominated phenolsulfonephthaleine derivatives, which exhibited red light excitation and the highest phosphorescence quantum yield reported so far. The RTP emission could be controlled by adding acid and alkali alternately, and a logic operation with half-subtractor function and dual-channel response was constructed based on these properties.
NATIONAL SCIENCE REVIEW
(2022)
Article
Nanoscience & Nanotechnology
Guojuan Qu, Tao Jiang, Tao Liu, Xiang Ma
Summary: In this study, multifunctional host polymers and Au nanoclusters were designed and synthesized to fabricate assemblies, leading to improved quantum yield and mitochondrial localization monitoring for targeted bioimaging. The findings provide a novel strategy for targeted bioimaging using luminophores.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Liangwei Ma, Qingyang Xu, Siyu Sun, Bingbing Ding, Zizhao Huang, Xiang Ma, He Tian
Summary: A universal strategy for solid, solution, or gel state organic persistent luminescent materials via radiative energy transfer is proposed. The persistent luminescence can be remotely regulated between different colors by controlling the isomerization of the energy acceptor. This strategy offers universality, flexibility, and operability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Chemistry, Multidisciplinary
Chen Wang, Michael P. O'Hagan, Ziyuan Li, Junji Zhang, Xiang Ma, He Tian, Itamar Willner
Summary: Photoresponsive nucleic acids have significant implications in materials science, allowing for the development of light-sensitive devices and materials with applications in catalysis, sensing, and drug delivery. The integration of photoisomerizable units into DNA strands enables reversible reconfiguration of nucleic acid architectures, providing control over the composition and properties of nanostructures.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Materials Science, Multidisciplinary
Ying Zhang, Zhuoran Xu, Tao Jiang, Yanyan Fu, Xiang Ma
Summary: Developing visible real-time monitoring methods for kinetic traps in thermodynamic equilibrium processes is essential in dynamic supramolecular chemistry research. In this study, a dynamic supramolecular system was designed and fabricated using host-guest interactions between pyrene derivatives (Py-TMA) and p-sulfonatocalix[4]arenes (SC4) in aqueous solution. The emission color of Py-TMA changed spontaneously from indigo blue to cyan after assembly with SC4, and gradually returned to the original indigo blue within 72 hours. The research demonstrated that this optical variation involved an excimer on/off process in a kinetic-trapped state. Additionally, a dynamic and time-variant artificial-light-harvesting system was successfully fabricated, showing a red-to-blue emission color change with an energy transfer efficiency of up to 99%.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Yonghao Su, Xin Jin, Jianhua Su, Yanli Feng, Qiaochun Wang, Zhiyun Zhang, He Tian, Xiang Ma
Summary: Long afterglow materials (up to 4 s) are achieved by doping a series of N,N'-diaryl-5,10-dihydrophenazine (DPP) derivatives into rigid cycloaliphatic epoxy resins (CER). The afterglow is attributed to the interaction between the matrix and the excited states of the dopants that generate radical species under continuous UV excitation, regulated by the peripheral functional groups of the N-phenyl substituents. Density functional theory (DFT) calculations suggest that electron-withdrawing groups impede afterglow emission, potentially due to reduced reduction potential and inefficient spin-orbit coupling coefficients. The radical-based afterglow systems show promise for information encryption, anti-counterfeiting, and photolithography.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Siyu Sun, Xiaolin Li, Chen Xu, Yan Li, YongZhen Wu, Ben L. Feringa, He Tian, Xiang Ma
Summary: A scale-effect model based on scalar theory is proposed to understand circularly polarized luminescence (CPL) signals, and the measurement entropy of CPL detection plays a key role in determining the isotropy and anisotropy of the CPL signal. Chiral molecules or structures are usually responsible for inducing CPL spontaneous emission in luminescent materials. However, achiral ordered structures at the particle scale can also significantly influence CPL signals. This discovery opens up new opportunities in chiral luminescent materials research and shows potential applications in various fields.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Applied
Yuhang Zhou, Jinming Song, Ying Hu, Jingyu Cao, Yanyan Fu, Xiang Ma
Summary: This study successfully achieves stimuli-responsive room-temperature phosphorescence (RTP) through the molecular packing mode conversion of a new class of benzil derivatives. Under ultraviolet light irradiation, the enhanced molecular motion triggers the reordering of the packing mode, resulting in color response. The multilevel stimuli-responsive phenomenon is attributed to the molecular packing mode conversion and the alteration of molecular conformation of excited state. This unique property provides a facile strategy for the development of advanced smart RTP materials.
Article
Chemistry, Applied
Chen Xu, Xiaohan Lin, Xiang Ma
Summary: Highly emissive fluorescent dyes are important in fluorescence imaging technology and fluorescence spectrometry, but the insoluble nature of most organic dyes in water has limited their application. This study presents a one-step supramolecular strategy to enhance the aqueous quantum yields of fluorescent dyes by binding them with cucurbit[8]uril. The resulting assembly showed a significant increase in quantum yields from 3.9% to 46.9% and formed spherical supramolecular nanoparticles. The mechanism of fluorescence enhancement and self-assembly of the dye were also investigated.
Article
Engineering, Chemical
Xiaohan Lin, Chen Xu, Yiyang Qiu, Xiang Ma
Summary: This research introduced a dynamic covalent bond into an amorphous polymer with room-temperature phosphorescent properties, and by photoreaction, the luminescent color and morphology of the polymer were changed significantly, leading to improved phosphorescence quantum yields and lifetimes. This provides a new idea for the design and development of controllable smart room-temperature phosphorescent materials.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Tong Wang, Siyu Sun, Xiangyu Jiang, Xiang Ma
Summary: This manuscript proposes a simple and efficient strategy to construct dye-doped polyvinyl alcohol (PVA) thin films with controlled orientation of the panchromatic CPL signal. The strategy can be generalized to the construction of thin-film CPL. The PVA films can be cut and stacked to obtain different emission effects and induce white CPL.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Liangwei Ma, Yiwei Liu, He Tian, Xiang Ma
Summary: In this study, a new perspective is proposed and demonstrated for enhancing the spin-forbidden intersystem crossing (ISC) in phosphors. The ISC yield (φ(ISC)) is increased by decreasing the fluorescence radiative transition rate constant (k (F)) through rational molecular designing. The substituent position of the methoxy group in the designed molecule alters the distribution of the front orbitals, resulting in the transition from a bright state to a dark state and the increase of φ(ISC) accompanied by the decrease of k (F). The fluorescence emission is successfully switched to phosphorescence emission by regulating k (F). This work provides an alternative strategy for designing efficient room-temperature phosphorescence materials.
Review
Chemistry, Multidisciplinary
Chenjia Yin, Zi-Ang Yan, Xiang Ma
Summary: This review summarizes the recent progress in supramolecular organic luminescent materials of various dimensionalities achieved through non-covalent interactions. The relationship between assembly behavior and luminescent properties is discussed, along with the existing challenges and future research directions hindering the development of supramolecular luminescent systems.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Zi-Ang Yan, Xiang Ma
Summary: Growing attention has been paid to pure organic room-temperature phosphorescence (RTP). This study presents a general strategy to design fluid RTP materials starting from the vast library of fluorophores, by using a deep eutectic mixture of glucose and choline as a stable supercooled liquid matrix. Direct transformation from commercial fluorescent dyes to RTP fluid is realized by doping without modifications. The excited triplet states are generated by an external heavy atom, while the rigid non covalent network stabilizes them with both functions intrinsic to the liquid matrix.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yunhan Zhao, Bingbing Ding, Zizhao Huang, Xiang Ma
Summary: This study reports a series of simple multi-guest/host organic long persistent luminescence (OLPL) materials with high quantum yield, achieved by doping phenothiazine derivative guest molecules into 9H-xanthen-9-one host matrices. The F-substituted phenothiazine derivative doping system exhibits highly efficient emission with a quantum yield of 46.3% in air. Moreover, these OLPL materials show promising potential for applications in the field of heat resistance due to their high luminescence efficiency at high temperatures.
Article
Chemistry, Applied
Leping Chen, Yanfen Wang, Tingyu Shi, Tiantian Ma, Yang Li, Huayu Qiu, Shouchun Yin, Meier Gu
Summary: This study successfully overcame the limitations of the heavy atom effect by introducing iodine atoms and innovatively enhancing the structure while weakening stacking behavior, achieving high efficiency and precision in photodynamic therapy and photothermal therapy.
Article
Chemistry, Applied
Bingpeng Guo, Honghan Sa, Peng Zhang, Guiwen Hao, Mengyu Li, Qingqing Jiang, Baoying Li, Wei Shu, Changxiang Shao
Summary: The design of ratiometric fluorescence probes with large Stokes shift is of great significance in detecting and imaging target substances in complex organisms. In this study, a novel fluorophore with a large Stokes shift was easily obtained, and a fluorescence probe based on it demonstrated rapid response, high selectivity, and sensitivity towards peroxynitrite. The probe also showed excellent biocompatibility and remarkable mitochondrial targeting ability, making it suitable for proportional imaging of peroxynitrite in living cells and zebrafish.
Review
Chemistry, Applied
Haidong Huang, Xiaohui Wang, Xinyang Li, Yichen Li, Guojin Liu, Lan Zhou, Jianzhong Shao
Summary: This article introduces the application of responsive photonic crystals in anti-counterfeiting technology, with a focus on the preparation principle, classification, and preparation methods.
Article
Chemistry, Applied
Yunpeng Wang, Tao Zhao, Xiaoye Bi, Chencheng Lv
Summary: In this study, three novel carbene dyes were designed to achieve environmentally friendly dyeing processes. The dyes formed covalent bonds with fibers and exhibited good dyeing performance and high color fastness. These findings highlight the potential of the novel carbene dyes in promoting green production in the textile industry.
Review
Chemistry, Applied
Yizhe Yan, Xiaopei Zhu, Jia-Xin Cao, Yuan He, Shaoqing Li, Jian-Yong Wang
Summary: In this paper, 1,3,5-triazine dyes were successfully synthesized and their photophysical properties were studied. Two probes were selected for further investigation, showing promising applications in various fields.
Article
Chemistry, Applied
Xin Hu, Tongsheng Huang, Lihua Chen, Weifeng Zhu, Fengjie Deng, Xiancai Li, Jianwen Tian, Meiying Liu, Xiaoyong Zhang, Yen Wei
Summary: This study presents the synthesis of fluorescent cyclomatrix polyphosphazene spheres with aggregation-induced emission (AIE) feature and biodegradable potential for controlled drug delivery. The resulting micelles exhibit high water dispersibility, desirable fluorescence performance, and high drug loading capacity. They can effectively release the encapsulated drug in physiological solution and show excellent biological imaging ability and cytotoxicity against cancer cells.
Article
Chemistry, Applied
Yanzhu Liu, Yanghui Lei, Dongyan Li, Guangkui Li, Dongping Li, Yongxiu Li
Summary: In this study, luminescent lanthanide nanoparticles were synthesized as a dual emission turn-off probe for detecting 2,6-pyridinedicarboxylic acid (DPA) in water. The nanoparticles showed good dispersion and water stability, and achieved low detection limits for DPA. They also exhibited high recoveries in various samples.
Article
Chemistry, Applied
Jung Jae Do, Jong Ryeol Kwon, Donghan Kim, Jae Woong Jung
Summary: This study presents a defect passivation approach using coumarin dye as a multi-functional passivating agent of perovskite films to boost power conversion efficiency and operating stability of PSCs. The incorporation of coumarin dye improves the film morphology, enhances carrier extraction/transport, and suppresses trap-assisted recombination in the perovskite films. The optimized device demonstrates impressive reliability and practical applicability, maintaining over 90% of its initial PCE after being exposed to continuous indoor lighting irradiation for 2000 hours.
Article
Chemistry, Applied
Gang Wang, Yu-Chang Wang, Jing Lu, Wen-Fu Yan, Juan Jin, Yuan-Peng Wang, Jia-Jia Zhang, Hui-Jie Zhang, Hao Dong, Xi-Guang Liu
Summary: A new Ni(II) compound with good solid-state fluorescence performance and stability was synthesized, and it showed outstanding detection properties for various substances in aqueous solutions. This compound has the potential to be a multifunctional sensor.
Article
Chemistry, Applied
Luyao Wei, Shenglong Shang, Yu Zheng, Jie Liu, Ping Zhu
Summary: This study developed a facile method to create high saturation and durable structural colors on cotton fabrics. The colors are regulated by adjusting the size of magnetic particles and can be conveniently printed on fabrics using photo masks on transparent films.
Article
Chemistry, Applied
Zhao Jiang, Qing Zhang, Zhaoyu Kong, Ruijie Qiao, Zichuan Liu, Linzhou Song, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Three heteroleptic Ir(III) complexes with different electron-donating aryl groups were synthesized and their optical properties were investigated. It was found that all three complexes exhibited aggregation-induced phosphorescence emission (AIPE) behaviors, and the relationship between the size of organic ligands and AIPE behaviors was characterized. Ir-PhCz showed the best imaging of latent fingerprints due to its green light emission and high quantum yield.
Article
Chemistry, Applied
Zhijun Ruan, Chunxia Fan, Xuanrong Wang, Dong Shao, Xiaodong Yang, Wentao He, Tao Xu, Junqi Lin, Zhengfang Tian
Summary: A novel thioketal-based probe has been designed for rapid and accurate detection of mercury (II) ions, showing different fluorescence characteristics in various states. The probe exhibits excellent selectivity and specificity, making it suitable for Hg2+ detection in water solutions.
Article
Chemistry, Applied
Jianjun Huang, Xuan Zhao, Daniel Escudero, Luc Van Meervelt, Dongbin Zheng, Yuyu Fang, Wim Dehaen
Summary: A series of BOAHY compounds were successfully synthesized and showed versatile applications as a platform for designing novel fluorescent probes, especially in selective recognition.
Article
Chemistry, Applied
Roman V. Larkovich, Victoria E. Shambalova, Savva A. Ponomarev, Alexander S. Aldoshin, Boris N. Tarasevich, Konstantin A. Lyssenko, Valentine G. Nenajdenko
Summary: An efficient synthetic protocol for the preparation of novel 1,7-difluorinated BODIPYs was elaborated. Their photophysical properties were studied and the effect of 2,6-substituents was evaluated using DFT calculations.
Article
Chemistry, Applied
Haneul Kim, Byungjin Koo
Summary: In this study, a lithium ion sensing methodology based on fluorinated naphthalene compounds using 19F NMR and UV-vis spectroscopy is reported. The binding of lithium ions to the compounds is confirmed by changes in chemical shifts and peak broadening. Additionally, the effect of different crown ether ring sizes on the binding ability is observed. This study provides a new method for lithium ion sensing using spectroscopy.
