Chemical Science
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2024
·Vol. 15
·期 10
·3530-3538
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IF 7.6
Xiao Han,Puxin Cheng,Shanshan Han,Zhihua Wang,Junjie Guan,Wenqing Han,Rongchao Shi,Songhua Chen,Yongshen Zheng,Jialiang Xu,Xian-He Bu
Stimuli-responsive optical materials have provided a powerful impetus for the development of intelligent optoelectronic devices. The family of organic–inorganic hybrid metal halides, distinguished by their structural diversity, presents a prospective platform for the advancement of stimuli-responsive optical materials. Here, we have employed a crown ether to anchor the A-site cation of a chiral antimony halide, enabling convenient control and modulation of its photophysical properties. The chirality-dependent asymmetric lattice distortion of inorganic skeletons assisted by a crown ether promotes the formation of self-trapped excitons (STEs), leading to a high photoluminescence quantum yield of over 85%, concomitant with the effective circularly polarized luminescence. The antimony halide enantiomers showcase highly sensitive stimuli-responsive luminescent behaviours towards excitation wavelength and temperature simultaneously, exhibiting a versatile reversible colour switching capability from blue to white and further to orange. In situ temperature-dependent luminescence spectra, time-resolved luminescence spectra and theoretical calculations reveal that the multi-stimuli-responsive luminescent behaviours stem from distinct STEs within zero-dimensional lattices. By virtue of the inherent flexibility and adaptability, these chiral antimony chlorides have promising prospects for future applications in cutting-edge fields such as multifunctional illumination technologies and intelligent sensing devices.
研究领域:
材料科学
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光学
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化学
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DOI
PubMed
高影响因子
Journal of Materials Chemistry C
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2024
·
IF 5.7
Xianhe Gao,Tao Cui,Ruigang Liu,Jie Liu,Shigui Zhu,Hao Song,Yang Wei,Weiqiu Kang,Xiumei Chen,Ze Yuan,Hongbo Li,Xiaoji Xie
Sb3+-doped rare-earth halide double perovskites (REDPs) have emerged as a novel class of optical and optoelectronic materials for diverse applications because of the enhanced optical properties induced by Sb3+ doping. However, the responsive luminescence features of Sb3+-doped REDPs, especially dual and multi-responsive luminescence, are rarely discovered. Herein, we show that Sb3+-doped Cs2NaScCl6 with blue and yellow-green emission centers exhibits both the excitation wavelength and temperature-responsive luminescence. Specifically, the dual emission centers of Sb3+-doped Cs2NaScCl6 exhibit reverse responses to temperature, changing the emission color of Sb3+-doped Cs2NaScCl6 as the temperature increases from 77 to 440 K. Our studies show that the observed dual-response luminescence should be attributed to the Sb3+ doping-enhanced responsive luminescence of pristine Cs2NaScCl6. The dual-response luminescence enables facile luminescence tuning of Sb3+-doped Cs2NaScCl6 with the assistance of co-doping with Tb3+ and Mn2+ and gives Sb3+-doped Cs2NaScCl6 potential for applications including information encryption, anti-counterfeiting, light-emitting diodes, and temperature sensing.
研究领域:
材料科学
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光学
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2024
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IF 18.5
Kunjie Liu,Ke Liu,Shiqiang Hao,An Hou,Jindong Cao,Mingzhen Quan,Yonggang Wang,Christopher Wolverton,Jing Zhao,Quanlin Liu
Stimuli-responsive photoluminescent (PL) materials have attracted considerable attention in recent years owing to their potential applications in anti-counterfeiting, information encryption, and sensing. Further investigations of the transformation mechanism and potential applications of stimulus-responsive PL materials are considerably important. In the current study, an organic–inorganic metal halide, C 9 H 15 N 3 SbCl 5 ([C 9 H 13 N 3 ] 2+ is a 1-(2-pyridyl) piperazine cation) is obtained, which exhibits a 0D structure with P- 1 space group. At room temperature, when excited by UV light, the C 9 H 15 N 3 SbCl 5 single crystals exhibit unimodal blue light emission at 405 nm, and grinding or hydrostatic pressure induces double-peak emissions at 405 and 650 nm. Interestingly, double-emission samples can be restored to single-emission samples by short annealing or storage in air for 2 weeks, and this process is reversible. Luminescence response to mechanical stimuli can also be achieved in the presence of hydrochloric acid and water. Spectral analysis and the analysis of the microstructural changes revealed that the structural modifications of the inorganic group play a pivotal role in the response to the stimulus. Finally, a composite film device based on C 9 H 15 N 3 SbCl 5 is prepared to demonstrate the potential of these smart materials in anti-counterfeiting and sensing applications.
研究领域:
材料科学
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光学
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Shihao Zhu,Zixian Wu,Xinhang Cong,Jing Cuan,You Zhou
In this work, dual-responsive luminescent Her@Zn-Bim hybrids are developed by herniarin (Her) dye encapsulation engineering within a layered host MOF (Zn-Bim). The pore confinement effect of the Zn-Bim host effectively isolates the guest dye molecules, therefore affording bright blue dye emission for Her@Zn-Bim hybrids. Upon exposure to tetracycline antibiotics (TCs), the hybrid undergoes a significant quenching of the blue emission, concurrent with the appearance of a distinct green emission. This dual-emission response is very fast and sensitive, facilitating real-time ratiometric detection of TCs with a low limit of detection of 7.81 nM. Notably, the ratiometric luminescence response manifests as a readily observable blue-to-green color switching, enabling straightforward and colorimetric visualization of TCs. Visual and semiquantitative monitoring of TCs is achieved using a readily available smartphone installed with a color-analysis app. Furthermore, in conjunction with principal component analysis, the Her@Zn-Bim hybrids demonstrate efficient discrimination of four TCs with high structural and chemical similarities, even in complex mixture systems. The mechanisms underlying the luminescent responses of the hybrids towards TCs are carefully elucidated. These hybrid sensors, featuring high sensitivity, fast response, colorimetric visualization, and precise discrimination capability, hold promising potential for practical applications in sensing TCs.
研究领域:
分析化学
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材料科学
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环境科学
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DOI
高影响因子
Materials Chemistry Frontiers
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2025
·
IF 6.4
Qing Han,Hangqing Xie,Jiayou He,Fei Zhou,Jing Xu,Jiadi Lian,Shiqing Xu
For anti-counterfeiting and encryption, there is a scarcity of photoluminescent (PL) stimuli-responsive materials that combine weather resistance, reversibility, color tunability, and dehydration-stress resistance. Here, we report water-triggered, thermally reversible sulfur quantum dots (SQDs) for dynamic anti-counterfeiting. Red phosphorescent SQDs (R-SQDs) rapidly switch to blue fluorescent SQDs (B-SQDs) upon water contact and revert to R-SQDs upon heating (400–700 °C). This reversible luminescence switching originates from the transformation of the SQDs’ environment: they exhibit triplet-state phosphorescence when embedded in a rigid sulfate matrix but show singlet-state fluorescence when dispersed in water. Both forms demonstrate excellent weather resistance and can be stored for one year under ambient conditions. Moreover, the transformation is highly specific to water, as other solvents do not induce this change. This work demonstrates an SQD-based material capable of encryption-decryption-re-encryption cycles through reversible PL color/lifetime switching, offering a robust platform for advanced dynamic anti-counterfeiting.
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高影响因子
Science China-Technological Sciences
·
2022
·Vol. 65
·期 5
·1043-1051
·
IF 3.903
Yang Sen,Pan XiaoRui,Tang JianPu,Yao Chi,Yang DaYong
Supramolecular DNA hydrogels have been synthesized based on the assembly of DNA building-blocks such as branched DNA and long DNA chains. The structures and functions of sole-module DNA hydrogels remain limitations. New methodologies by integrating hybrid components are desired to expand the synthesis of DNA hydrogel. Herein, we synthesized a Ln 3+ -containing luminescent supramolecular hydrogel by employing the coordination and electrostatic interactions between lanthanide ions (Tb 3+ and Eu 3+ ) and linear single-stranded DNA (ssDNA). Through the coordination between ssDNA and Ln 3+ , a series of luminescent supramolecular hydrogels were synthesized, among which the Tb-G n /T n and Eu-T n hydrogels emitted the characteristic luminescence of Tb and Eu, respectively. The luminescent intensities of the hydrogels were adjusted by designing DNA sequences with programmable bases and chain lengths. Notably, the Tb/Eu co-doped luminescent supramolecular hydrogel displayed tunable luminescence from green to yellow by regulating the stoichiometric ratio of Tb/Eu. Moreover, the hydrogel had reversible luminescent stimulation responsiveness toward Ag + /L-Cys. We expected that the synthesis of Ln 3+ -containing luminescent supramolecular hydrogels enriched the strategies of the construction of DNA hydrogels, and promoted the development of stimuli-responsive supramolecular materials.
研究领域:
材料科学
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化学
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纳米技术
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生物物理
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高影响因子
Advanced Science
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2024
·
IF 14.3
Yijun Zhao,Xingru Yang,Lun Yang,Fangjian Xing,Cihui Liu,Yunsong Di,Guiyuan Cao,Shibiao Wei,Xifeng Yang,Xiaowei Zhang,Yushen Liu,Zhixing Gan
The smart materials with multi-color and stimuli-responsive luminescence are very promising for next generation of optical information encryption and anti-counterfeiting, but these materials are still scarce. Herein, a multi-level information encryption strategy is developed based on the polychromatic emission of Sb-doped double perovskite powders (SDPPs). Cs 2 NaInCl 6 :Sb, Cs 2 KInCl 6 :Sb, and Cs 2 AgInCl 6 :Sb synthesized through coprecipitation methods exhibit broadband emissions with bright blue, cyan, and orange colors, respectively. The information transmitted by specific SDPP is encrypted when different SDPPs are mixed. The confidential information can be decrypted by selecting the corresponding narrowband filter. Then, an encrypted quick response (QR) code with improved security is demonstrated based on this multi-channel selection strategy. Moreover, the three types of SDPPs exhibit three different water-triggered luminescence switching behaviors. The confidential information represented by Cs 2 NaInCl 6 :Sb can be erased/recovered through a simple water spray/drying. Whereas, the information collected from the green channel is permanently erased by moisture, which fundamentally avoids information leakage. Therefore, different encryption schemes can be designed to meet a variety of encryption requirements. The multicolor and stimuli-responsive luminescence greatly enrich the flexibility of optical information encryption, which leaps the level of security and confidentiality.
研究领域:
材料科学
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光学
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密码学
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DOI
PubMed
高影响因子
MACROMOLECULES
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2022
·
IF 6.057
Kang Liu,Pengbo Han,Shunfeng Yu,Xinjun Wu,Yueyi Tian,Qianhan Liu,Jinhui Wang,Mingming Zhang,Chuanzhuang Zhao
Stimuli-responsive light-emitting polymers (SRLEPs) have many promising applications. However, the synthesis of SRLEPs from nonconjugated and water-soluble monomers remains a challenge. Herein, for the first time, nonconjugated luminescent polymers with an upper critical solution temperature (UCST) in aqueous solution are reported. The polymer is synthesized through copolymerization of a strong hydrogen-donating monomer, acrylic acid (AAc), and a strong hydrogen-accepting monomer, N-vinylcaprolactam (NVCL). The polymer–polymer hydrogen-bonding rigidifies the chain conformation and enhances the clustering of the heteroatoms and carbonyl groups, resulting in an improved clusteroluminescence. Meanwhile, the polymer–polymer hydrogen bonding also brings in dynamic chain association that can be switched with temperature, yielding a UCST-type thermoresponsiveness in aqueous solution. This work demonstrates a novel and facile method of designing SRLEPs through tailoring the hydrogen bonds in the polymer. The properties of clusteroluminescence and thermoresponsiveness of the AAc–NVCL copolymers may render themselves with applications as temperature-sensitive biosensing.
研究领域:
聚合物科学
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材料科学
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化学
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生物传感
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DOI
高影响因子
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