ACS Applied Nano Materials
·
2022
·
IF 6.14
Xiaohui Wang,Yichen Li,Jianyong Zheng,Xinyang Li,Guojin Liu,Lan Zhou,Wenlong Zhou,Jianzhong Shao
Responsive photonic crystals (PCs) with a nanoscale band gap assembled by colloidal nanospheres have been increasingly utilized in detection and sensing devices owing to their attractive ability to change color in response to external conditions. However, most of the reported works have been dedicated to single-functional PCs, which can only be used as sensors or detectors in a specific situation. Thus, producing a multi-functional PC for various industrial applications remains a challenge. In this work, multi-functional soft PC films (SPCFs) with a brilliant structural color and a robust structure are fabricated by using polystyrene@poly(methyl methacrylate-butyl acrylate) [PS@P(MMA-BA)] nanospheres with size in the range of 200–350 nm as building blocks. The SPCFs possess both the mechanochromic and solvatochromic properties owing to the adjustable photonic band gap under stress and polar solvent conditions. The mechanochromic effect of the SPCF under stretching results in a blue shift of the structural color due to the decrease in lattice spacing. In contrast, the solvatochromic mechanism of the SPCF is that it can be swollen by polar solvents, resulting in the increase in the lattice spacing of PCs and a red shift of the structural color. Meanwhile, the SPCF can keep its original structural color while stretched for 20 cycles or when the organic solvent is completely evaporated. Therefore, robust multi-functional SPCFs fabricated by the self-assembly of PS@P(MMA-BA) nanospheres under gravity sedimentation can respond to stress and organic solvents, showing great potential for use in sensors and detectors.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2023
·
IF 5.1
Onome Ejeromedoghene,Olayinka Oderinde,Sheriff Adewuyi,Guodong Fu
Recently, the fabrication of functional and stimuli-responsive hydrogels using deep eutectic solvent derivatives is gaining tremendous scientific recognition owing to their unique self-switching properties. In this study, perfluorinated deep eutectic mixtures were prepared as the template for the synthesis of WO 3 /MoO 3 composites. The metal oxide-based composites were further employed as a chemical crosslinking agent for the polymerization of polyvinyl pyrrolidine (PVP) and acrylamide (Am), for the construction of (PVP-Am)/WO 3 /MoO 3 hydrogel composites. The hydrogels displayed unique morphologies and mechanical properties . The hydrophilic nature of hydrogels as well as the high concentration of dispersed WO 3 /MoO 3 composites in the polymer network contributes to their photochromic activity and allows an immediate coloration upon exposure to light at a short time. Howbeit, the low concentration of the dispersed WO 3 /MoO 3 composites in the dry glass membrane is responsible for the blue coloration and an extended time of photochromic response. In addition, the electrochromic behavior of the hydrogel composites displayed a strong quasi-rectangular shape potential window as well as a well-defined redox cyclic voltammetry curve when exposed to high voltage. This could be due to the photoredox property of the WO 3 /MoO 3 composites responsible for charge transfer between the different oxidation states.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
高影响因子
ChemistrySelect
·
2023
·Vol. 8
·期 17
·e202300501
·
IF 2.1
Nannan Chen,Yongbo Wei,Wei Liu,Tong Wu,Jingming Zhou,Yuqiu Ye,Zexin Wang,Yanbing Ke,Hong Jiang,Lijun Xie
Graphical A facile strategy was employed to achieve ACQ/AIE transition by modulation of substituent groups on rofecoxib analogues. The compound 1 b-3 with −Br substituent shows AIE activity while 2 a-3 with the −NH 2 substituent exhibits ACQ effect. Moreover, compound 1 b-3 as an AIE-active compound, shows mechanochromic, acidochromic properties, and its potential applications in the field of mechanical-force sensors and living cells imaging probes have been demonstrated. Aggregation-induced emission luminogens (AIEgens) have been widely investigated due to their promising applications in data storage, organic light-emitting diodes, and deep tissue bioimaging as compared to conventional fluorophores. In this work, we have designed and synthesized two novel rofecoxib analogues functionalized with different terminal groups (−NH 2 , −Br) on the benzene ring B. Interestingly, the compound 2 a-3 with −NH 2 substituent shows aggregation-caused quenching effect whereas the compound 1 b-3 with −Br group displays aggregation-induced emission (AIE) property which may be caused by the twisted conformation and restricted – stacking of 1 b-3 according to the X-ray single crystal diffraction analysis. These opposite results indicated that the terminal groups could have great influence on the photophysical properties of targets. Moreover, the compound 1 b-3 exhibited multi-stimuli response luminescence behaviors under various external stimuli including solvatochromism, mechanochromism and acidochromism. Furthermore, lipid droplets imaging investigation proved the compound 1 b-3 was capable of achieving specific lipid droplets bioimaging. This work not only presents a better understanding of the structure-fluorescent property relationship based on the scaffold of rofecoxib, but also provides a new avenue for spectral modulation and the development of new MSR materials.
研究领域:
有机化学
·
生物医学工程
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Danhua Guo,Huijun Li,Zhouqing Xu,Yujie Nie
A smart fluorescent pyrene-based MOFs ( HPU-26 ) was synthesized by the solvothermal method, which possessed multi-stimuli-responsive properties and could detect water content in common organic solvents . The reversible multicolor fluorescent switching between yellowish green and cyan were observed under the stimulation of force, heating, and acid-base vapors. PXRD pattern, DSC curve, FI-IR spectra and the solid-state UV–vis absorption spectra were conducted to prove that the changes of π - conjugation induced the transformations between excimer and monomer formation under external stimulation, thus resulting in different fluorescent properties. In addition, HPU-26 could realize the detection of water content by remarkable change of fluorescent color from yellowish green to blue with increasing the water content in common organic solvents, which was attributed to the decomposition of crystal structure. The limit of detection (LOD) values of HPU-26 for detecting the water content in EtOH, DMA, Acetone and ACN were determined as 0.0260 %, 0.0578 %, 0.1978 %, and 0.5637 % (v/v), respectively. Furthermore, HPU-26 could be applied in advanced anti-counterfeiting and convenient visual detection of water content in common organic solvents by smartphone-based software.
研究领域:
材料科学
·
分析化学
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·
IF 27.4
Bin Wang,Pengcheng Liu,Feifei Zhao,Bingkun Huang,Wu Zhang,Abdulhakem Y. Elezzabi,Linhua Liu,William W. Yu,Haizeng Li
Electrochromism stands out as a highly promising technology for applications including variable optical attenuators, optical switches, transparent displays, and dynamic windows. The pursuit of high-contrast tunability in electrochromic devices remains a challenging goal. Here, the first photochromic hydrogel electrolyte is reported for electro- and photo-dual responsive chromatic devices that yield a high transmittance contrast at 633 nm (ΔT = 83.1%), along with a tinted transmittance below 1.5%. Such high-contrast devices not only hold great promise for dynamic windows but also enable seamless transitions between transparent augmented reality (AR) glass and opaque virtual reality (VR) glass. These findings introduce an innovative strategy for the design of high-contrast dimmers, opening new avenues for the development of chromatic devices.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2020
·
IF 4.613
Tiechen Yu,Yuntao Han,Hongyan Yao,Zheng Chen,Shaowei Guan
In recent years, colorless-to-black electrochromic (EC) and electrofluorochromic (EFC) materials are attracting increasing interest for the fundamental scientific research and potential applications. In order to achieve multiple-response optoelectronic materials with better black conversion and solid-state fluorescence performance (black-color/emission dual-switchable materials), we adopted a novel design strategy to synthesis a diamine monomer named TPE-NH 2, in which the π-core tetraphenylethene (TPE) connects with two oxidation centers. All the polyamides/polyimides based on this monomer exhibited good solubility, thermal stability and aggregation-induced emission (AIE) activity. Among these, polyamide 5a not only showed rare EC properties (colorless-to-black) with ultra-low voltage (0–0.75 V), high optical contrasts (up to 87.9% at 692 nm) and fast switching times (2.04/1.45 s) but also demonstrated high fluorescence properties with the introduction of TPE. In addition, polyamide 5a showed good continuous switching stability for EC property and acceptable stability for EFC property, which makes it a potential candidate in EC/EFC applications.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
DYES AND PIGMENTS
·
2022
·
IF 5.122
Feng Li,Mingyue Pan,Qi He,Qianhua Zhou,Qian Tang,Chengbin Gong
Multifunctional electrochromic materials are widely used in optoelectronic devices . Pyrene is a π-electron-rich group with fluorescence properties. Ester-functionalized pyrene derivatives potentially have interesting multifunctional properties such as electrochromic and electrofluorochromic characteristics. In this work, mono-, di-, tri-, and tetra-ester-substituted pyrene derivatives were synthesized, and the effects of the number of ester substituents on their photophysical, electrochemical, electrochromic, and electrofluorochromic properties were investigated. The number of ester substituents significantly affected these properties. An increase in the number of ester substituents on the pyrene caused red shifts in the absorption and emission spectra, a decrease in the driving voltage , and changes in the electrochromic colored states and electrofluorochromic performance. Mono-, di-, and tri-ester-functionalized pyrene derivatives showed good electrochromic properties, namely good switching stabilities, high optical contrasts, rapid responses, and high coloration efficiencies. Mono- and tri-ester-functionalized pyrenes gave good electrofluorochromic performances with reversible fluorescence quenching–fluorescence restoring between colored and bleached states during the electrochromic process. Ester-functionalized pyrene derivatives were successfully used in two functional digital displays with vivid colors. These results show that ester-functionalized pyrene derivatives with good electrochromic and electrofluorochromic properties are promising candidates for use in various applications, e.g., digital displays, organic electroluminescence displays, electronic shelf labels, energy-saving windows, and electronic paper.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2019
·Vol. 24
·期 2
·441-445
·
IF 2.531
Chen Xiaoming,Zhang Jingyan
A novel electrochromic polymer poly(2,3-dimethyl-2,3-dihydrothieno[3,4-b][1,4]dioxine) (PEDOT-Me 2 ) based on 3,4-ethylenedioxythiophene (EDOT) with symmetric dimethyl pendant groups was successfully synthesized through electrochemical polymerization in 0.1 M LiClO 4 /ACN electrolyte. The polymer film displays reversible electrochromism switching between blue neutral state (− 1.2 V) and transmissive sky blue oxidized state (0.5 V) with an enhanced optical contrast (Δ T = 30%) in comparison with the traditional PEDOT (Δ T = 25%).
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 6
·1-12
·
IF 2.8
Zhou Silan,Zhao Nanyin,Li Jun
Electrochromic materials are substances that undergo the implantation or removal of electrons and ions in response to an electric field, which is redox reactions. These materials can change from one color to another and exhibit a reversible color change after a reverse voltage is applied. In this study, we report a novel material, Bi 2 O 2 Se, capable of both electrochromic and electrochemical energy storage. We successfully synthesized Bi 2 O 2 Se nanosheets using a hydrothermal method. Electrochemical tests on the Bi 2 O 2 Se nanosheets were conducted utilizing a three-electrode system at an electrochemical workstation. Under the influence of an electric field, the Bi 2 O 2 Se nanosheets transitioned from gray to yellow. This discoloration behavior was reversible upon applying reverse voltage, thereby exhibiting an electrochromic effect. Discharge at a voltage of 0 V after discoloration, resulting in reverse current generation. During this discharge process, the color of the Bi 2 O 2 Se electrode gradually recovers, exhibiting its energy storage capability. These findings suggest that Bi 2 O 2 Se nanosheets hold promise for potential applications that integrate both electrochromic functionality and energy storage capabilities. In the near future, they are likely to have a substantial impact on our daily lives.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Huangjie Lu,Zhaofa Zheng,Zi-Jian Li,Hongliang Bao,Xiaojing Guo,Xiaofeng Guo,Jian Lin,Yuan Qian,Jian-Qiang Wang
Rational design and synthesis of new photochromic sensors have been active research areas of inquiry, particularly on how to predict and tailor their properties and functionalities. Herein, two thulium 2,2′:6′,2′′-terpyridine-4′-carboxylate (TPC)-functionalized metal–organic hybrids, Tm(TPC)2(HCOO)(H2O) (TmTPC-1) and Tm(TPC)(HCOO)2 (TmTPC-2) with different photochromic response behaviors, have been successfully prepared, allowing for straightforward investigations of the structure–property correlation. Single-crystal X-ray diffraction and electron paramagnetic resonance analyses revealed that the incorporation of a unique dangling decorating TPC unit in TmTPC-1 offers a shorter and more accessible π–π interaction pathway between the adjacent TPC moieties than that in TmTPC-2. Such a structural feature leads to the production of radical species via a photoinduced intermolecular electron-transfer (IeMCT) process upon UV or X-ray irradiation, which ultimately endows TmTPC-1 with a rather unusual UV and X-ray dual photochromism. A linear relationship between the change of UV–vis absorbance intensity and X-ray dose was established, making TmTPC-1 a promising dosimeter for X-ray radiation with an extremely high energy threshold (30 kGy). To advance the development for real-world application, we have fabricated polyvinylidene fluoride (PVDF) membranes incorporating TmTPC-1 for functioning either as a UV imager or as an X-ray radiation indicator. Lastly, TmTPC-1 exhibits high thermal stability (up to 400 °C) and radioresistance (at least 900 kGy), and also excellent reversibility of photochromic transformation (at least 5 cycles).
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
The Innovation
·
2025
·
IF 25.7
Yuting Lin,Jianyu Zhang,Wen-Jin Wang,Zhenguo Tang,Xianying Fang,Xu Xu,Fritz E. Kühn,Zheng Zhao,Qiang Yong,Ben Zhong Tang,Xu-Min Cai
The aggregation process plays a significant role in regulating the aggregate structures from molecules toward macroscopic photophysical properties. Pyrene (Py), as the simplest dimer candidate, serves as a suitable model for studying the aggregation. Herein, a series of Py-based aggregation-induced emission (AIE) materials have been investigated by clarifying the comprehensive roles of oxygen, substituents, molecular motion, and packing during aggregation, initially realizing the aim of controlling aggregate structures. With a largely planar and conjugated conformation, Py shows anomalous AIE characteristics due to the oxygen quenching at the molecular level but turn-on fluorescence in the aggregate state because of the oxygen isolation. Although introducing substituents induces molecular motion and similarly weakened luminescence in the molecular state, the impact of substituents on the aggregate-state photophysical properties enormously differs, exhibiting from weak blue, strong cyan, and strong green to weak yellow emissions, due to variable aggregate structures. Interestingly, the natural alicycle-substituted Py-dehydroabietylamine (Py-DAA) exhibits both mechanochromism and acidichromism, which can be synergistically applied in dynamic encryption-decryption. This work not only elucidates the unique AIE property of Py for the first time but also clarifies the bridging role of aggregation between single-molecular and aggregate states, achieving preliminary control over the aggregate structures.
研究领域:
化学
·
材料科学
·
光物理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DYES AND PIGMENTS
·
2023
·
IF 4.5
Yutong Xiong,Weiren Zhong,Xuedan Zhang,Yuting Lin,Zhenguo Tang,Shouji Li,Xu-Min Cai
The petrochemical-based multi-stimuli responsive materials have been widely explored as advanced functional materials in the past several decades, but they inevitably face problems like complicated synthesis, non-renewability, and non-sustainability. On this basis, the bio-based materials used to construct multi-stimuli responsive due to the unique natural structures have come to the fore. In this work, three novel triphenylamine-based salicylideneanilines have been simply designed with aggregation-induced emission (AIE) properties. Among all, DAMB-TPAOH and DAMB-TPA possessing the natural structure of dehydroabietic acid from rosin are bioproduct-inspired AIE luminogens (BioAIEgens). Derived from the excited-state intramolecular proton transfer (ESIPT) and restriction of intramolecular motion (RIM) dual-mechanism caused by the hydroxyl group and rigidification of alicyclic moiety, respectively, the solid-state DAMB-TPAOH exhibits red-shifted (compared to DAMB-TPA ) and stronger (compared to BA-TPAOH ) emission, endowing this BioAIEgen with the best fluorescence behavior. Further, the introduction of the natural skeleton, propeller TPA, and imine group results in the high-contrast mechanochromic and acidichromic properties of DAMB-TPAOH . The multi-stimuli responsive properties endow DAMB-TPAOH with potential utilization in the manufacture of rewritable paper and multi-color ink. The current work contributes greatly to the development of BioAIEgens with both mechanochromism and acidichromism.
研究领域:
材料科学
·
有机化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）