Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 15
·5058-5063
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IF 7.059
Jun Zhou,Mingze Li,Maxim S. Molokeev,Jiayue Sun,Denghui Xu,Zhiguo Xia
Dopants in luminescent metal halides provide an alternative way for photoluminescence tuning towards versatile optical applications. Here we report a trivalent antimony (Sb3+)-doped single crystalline 0D metal halide with the composition of (C9NH20)9[Pb3Cl11](ZnCl4)2:Sb3+. This compound possessed the coexistence of two emission centers including intrinsic and extrinsic self-trapped excitons (STEs), which are ascribed to [Pb3Cl11]5− clusters and triplet STEs formed by the 3P1–1S0 transition of Sb3+. By regulating the Sb3+ concentration, the emission can be tuned from green to yellow and finally to orange, which would help to develop optically pumped white light-emitting diodes (WLEDs) with different photometric characteristics. Moreover, this dopant-induced extrinsic STE approach presents a new direction towards tuning the luminescence properties of 0D metal halides, and may find application in environmentally-friendly, high-performance metal halide light emitters.
研究领域:
材料科学
·
光学
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DOI
高影响因子
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
·
2023
·
IF 2.3
Rong Chen,Shanping Wang,Fang Lin,Yongzhuo Zheng,Wanxv Zhang,Juan Wang,Fengwan Guo
Graphical In this article, all inorganic Cs 3 BiCl 6 perovskite single crystals with a 0D structure have been synthesized by the anti-solvent crystallization method. There is no obvious photoluminescence (PL) phenomenon for Cs 3 BiCl 6 at room temperature (RT) under ultraviolet light. Subsequently, we introduced Sb 3+ into Cs 3 BiCl 6 to obtain Cs 3 BiCl 6 : Sb, of which the Stokes shift is 175 nm, and full-width-at-half-maxima (FWHM) is 132 nm. By adjusting the doping concentration of Sb 3+ , the PL quantum yield (PLQY) of Cs 3 BiCl 6 : Sb was increased to 15.85 %, which has a microsecond PL lifetime and good environmental stability. Through a series of tests and characterization, we determined that the broadband emission of Cs 3 BiCl 6 : Sb originated from self-trapped exciton emission (STEs). Low-dimensional lead-based metal halide perovskites (MHPs) have many exceptional photoelectric capabilities thanks to the 6 s 2 electron structure of lead ion (Pb 2+ ). Pb 2+ ′s toxicity, however, has prevented its widespread development and use. Finding ions in the valence layer that have a comparable electrical structure thus makes sense as Pb 2+ replacements. In this work, all inorganic zero-dimensional (0D) Cs 3 BiCl 6 single crystal was synthesized by the anti-solvent crystallization method. There is no obvious photoluminescence (PL) phenomenon for Cs 3 BiCl 6 at room temperature (RT). It is found that the extremely strong exciton-phonon interaction leads to seriously non-radiative recombination. After doping with Sb 3+ , Cs 3 BiCl 6 : Sb achieved broadband emission with a significant Stokes shift, the photoluminescence quantum yield (PLQY) up to 15.85 %, which has a microsecond PL decay lifetime and excellent environmental stability. Systematic spectroscopic characterizations unveil the PL mechanism of Cs 3 BiCl 6 : Sb is self-trapped excitons (STEs) emission, and theoretical calculation revealed the indirect bandgap properties of Cs 3 BiCl 6 and Cs 3 BiCl 6 : Sb.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Xia Liu,Hu Wang,Chenyang Zhang,Yuexiao Pan
Most zirconium-based hybrids face limitations in indirect bandgap emissions due to low quantum efficiency and poor exciton utilization. Here, we demonstrate that trivalent antimony (Sb3+) serves as an effective dopant to induce broadband orange-red emission in the perovskite derivative C8H24N2ZrCl6 (CZC). Under 275 nm excitation, undoped CZC exhibits cyan photoluminescence at 480 nm, originating from self-trapped excitons (STEs). With the introduction of Sb3+, an additional wide emission band emerged at 650 nm, corresponding to the 3P1 → 1S0 transition of Sb3+. The dual-band intensity ratio is tunable by the Sb3+ doping concentration with the maximum orange emission achieved at X = 25% within the investigated range (0 to 30%) (X, defined as the molar ratio of Sb3+/(Zr4+ + Sb3+)), achieving record-high photoluminescence quantum yields (PLQYs) of 87.8%. A white-light-emitting diode (LED) prototype fabricated with CZC:25% Sb3+ demonstrates stable electroluminescence spectra across 10–110 mA currents, with patterned films showing dual-mode anticounterfeiting labels under 275 and 365 nm UV lights. This work offers a dopant-mediated STE sensitization strategy for efficient, thermally stable, and spectrally tunable hybrid halide phosphors suitable for solid-state lighting and optical security applications.
研究领域:
材料科学
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光电子学
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光子学
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固态照明
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光学安全
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2024
·
IF 3.3
Haoze Wang,Wenzhi Li,Kaining Wang,Hong Yin,Xin Mao,Ruiling Zhang
Zero-dimensional (0D) hybrid indium halides have recently received great attention for their potential as X-ray scintillators due to their non-toxicity, superior optical properties and exceptional stability. However, most indium halides suffer from low emission efficiency, resulting in inferior performance. Herein, we demonstrate that a small amount of Sb 3+ doping can greatly enhance the photoluminescence efficiency of a 0D hybrid indium chloride, DMA 4 InCl 7 . The pristine crystals exhibit weak self-trapped exciton (STE) emission centered at 620 nm with a low quantum yield of 11%. After Sb 3+ doping, the STE emission efficiency can be greatly increased to 91%. The spectroscopic experiments and theoretical calculations indicate the efficient energy transfer from excited Sb 3+ ions to the emitting STE state of the host is responsible for the substantial increase in emission efficiency. Furthermore, we find the energy transfer efficiency is related to the distance between dopants and [InCl 6 ] 3- units. The strong STE emission endows the doped samples with desirable X-ray scintillation performance, with a high light yield of 23500 photons/MeV and a low detection limit of 175 nGy air ·s −1 .
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2026
·
IF 3.4
Liangyi Gu,Daxi Pan,Jiahong Li,Xiaoshuang Li,Jian Wang,Bingtao Liu,Bo Wang,Youchao Kong,Qingguang Zeng
Zero-dimensional manganese halides offer distinctive luminescence but are limited by nonradiative losses, constraining their efficiency and tunability. Herein, we demonstrate a synergistic Zn2+ and Sb3+ doping strategy in (C8H20N)2MnCl4 to overcome these limitations. Initial Zn2+ alloying optimized the inter-Mn2+ distance, suppressing nonradiative energy transfer and boosting the inherent green Mn2+ emission (525 nm) to a 92.5% PLQY. Subsequent incorporation of trace Sb3+ ions created dual emissive centers, enabling broad white-light emission and a record PLQY of 98.4%. Combined spectroscopic and computational studies confirm that Sb3+ occupies both Mn2+ and Zn2+ sites, introducing specific defect states that steer energy into both triplet and singlet self-trapped exciton channels, alongside the Mn2+ transition. The optimized material exhibits superior thermal stability with a high activation energy barrier. Leveraging these properties, we fabricated a mechanically durable fluorescent film that serves as a highly sensitive temperature sensor (maximum relative sensitivity of 5.190% K–1), withstanding rigorous folding tests. This work establishes a potent doping paradigm for engineering high-performance 0D emissive halides and showcases their viable integration into flexible optoelectronic devices for advanced sensing applications.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xuezhong Yang,Hang Liu,Hongqun Zhu,Chunhui Sun,Haozhou Tian,Qiang Wang,Yuhong Zhang
Here, a new type of Sb 3+ /Sm 3+ ions heavy concentration doped Cs 2 NaBiCl 6 double perovskites was successfully synthesized by solvothermal route. The downshifting photoluminescence properties of all samples are analyzed in detail, and the luminescence mechanism is further elucidated by fluorescence decay lifetime. Upon excitation at 354 nm, a strong blue emission band(400–500 nm) is observed for Cs 2 NaBiCl 6 :Sb 3+ , which comes from self-trapping exciton(STE) recombination of distorted [SbCl 6 ] 3– . Benefiting from Sb 3+ -induced local structural modification and narrow optical band gap, both STE broadband and Sm 3+ ions visible luminescence emissions are significantly boosted through free exciton(FE) sensitization in Cs 2 NaBiCl 6 :Sb 3+ /Sm 3+ sample. In addition, the luminescence thermal performances of Cs 2 NaBiCl 6 :Sb 3+ /Sm 3+ sample are investigated from 93 to 293 K. The luminescence thermal enhancement phenomenon is obtained at lower temperature range. The optical temperature sensing performance is discussed with luminescence intensity ratio technique, with maximum relative sensitivity of 5.676 % K −1 at 213 K. Finally, the anti-counterfeiting application of Cs 2 NaBiCl 6 :Sb 3+ /Sm 3+ sample is elaborated due to their bright multi-color emission under different excitation and temperature.
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高影响因子
RSC Advances
·
2025
·Vol. 15
·期 33
·26800-26806
·
IF 4.6
Qiaochu Chen,Xuehan Ma,Guifu Dong,Hongbin Yan
All-inorganic lead-free halide perovskites have shown great promise in the field of optoelectronics. However, the room-temperature, low-cost, and large-scale synthesis of such materials remains challenging. Here, we report a rapid mechanochemical synthesis strategy based on ethanol-assisted ball milling to successfully prepare Cs2ZrCl6 double perovskite with Sb3+ doping, which exhibits tricolor luminescence with excitation wavelength-dependent characteristics. The material emits blue (450 nm, [ZrCl6]2− self-trapped exciton emission), warm white (450/610 nm dual peaks), and red (610 nm, Sb3+ 3P1 → 1S0 transition) light under 254, 310, and 365 nm ultraviolet excitation, respectively, with a photoluminescence quantum yield (PLQY) stably exceeding 30%. When the Cs2ZrCl6:Sb3+ samples are fabricated into anti-counterfeiting patterns, they emit blue, warm white, and red light under 254, 310, and 365 nm ultraviolet lamp excitation, respectively, demonstrating excellent application prospects in the field of anti-counterfeiting encryption. This study provides a new idea for the development of efficient and environmentally friendly synthesis of multi-modal anti-counterfeiting materials.
研究领域:
材料科学
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光电子学
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无机化学
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纳米技术
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防伪技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Meng Gao,Yuexiao Pan,Hongzhou Lian,Jun Lin
The synthesis of sustainable luminescent materials with simplicity, low energy consumption, and nontoxicity is of great importance in the field of chemistry and materials science. In this study, a room temperature evaporation method was employed to synthesize Sb3+-doped bismuth-based halide emission crystals, allowing for investigation of spectral tuning, luminescence enhancement, and temperature sensitivity. By substitution of Rb+ with varying concentrations of Cs+ in Rb3BiCl6 (RBC), the luminescent color of the crystals can be tuned from orange to yellow. The resulting alloyed yellow-emitting crystals were identified as Rb2CsBiCl6 (RCBC). Remarkably, when one-third of the Rb+ ions were replaced by Cs+ in the RBC, the crystals exhibited improved thermal stability and a 20-fold increase in luminescence intensity. The temperature-sensitive behavior was observed for RBC:Sb, with emission shifting from 590 to 574 nm upon heating while the yellow emission of RCBC:Sb exhibited no significant peak shift with temperature. Notably, the yellow emission of RBC:Sb could be reversibly converted back to orange light upon cooling to room temperature. In contrast, RCBC:Sb exhibited no significant peak shift with temperature. The differential temperature sensitivity between RBC:Sb and RCBC:Sb offers potential applications in anti-counterfeiting measures.
研究领域:
材料科学
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发光材料
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光学性能
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防伪技术
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无机化学
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2018
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IF 11.698
Fan Li,Lili Zhang,Chun Hu,Xueci Xing,Bing Yan,Yaowen Gao,Li Zhou
Three types of Sb 2 S 3 with different degrees of crystallinity were synthesized via a hydrothermal procedure by adjusting the concentration of hydrochloric acid . The amorphous Sb 2 S 3 sample (A-Sb 2 S 3 ) exhibited nearly 13 times higher photocatalytic activity for the decolorization and biodegradability improvement of MO solution compared with both crystalline samples under visible light (λ > 420 nm). It was verified that MO and Congo Red azo dyes were adsorbed onto A-Sb 2 S 3 by displacing hydroxyl groups (OH − ) to complex with Sb 3+ on A-Sb 2 S 3 , which occurred via σ bonding to the lone pairs of azo nitrogen atoms with Sb 3+ (σ-Sb-( N N )). Moreover, the decolorization rate of MO was positively related to its adsorption onto A-Sb 2 S 3 , and no significant degradation was observed for non-azo intermediates. The predominant photodegradation pathways of MO were reduction and oxidization to sulfanilic acid, NO 3 − and small-molecule acids. On the basis of photoelectron spectra, ESR (Electron spin resonance) measurements and other experimental information, it was proposed that the complexes (σ-Sb-( N N )) could transmit photogenerated electrons and holes to the azo group, breaking the N N bond, causing azo dye decolorization to improve their biodegradability; while on the surface of bare A-Sb 2 S 3 , the strong coordination interaction of OH − with Sb 3+ made OH − groups become the recombination centers for photogenerated electrons and holes during the photocatalytic reaction.
研究领域:
环境科学
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材料科学
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高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 10
·期 3
·991-1000
·
IF 7.779
Yexin Huang,Yuexiao Pan,Chengdong Peng,Yihong Ding,Hongzhou Lian,Liyi Li,Jun Lin
A facile strategy for water probing with visible perception is particularly important for water transport, ecosystem sustainability, and the ocean industry. Here, we have developed a simple technology to probe water content by using the response of the orange/cyan luminescence color of Sb3+ emitted from the two novel rare-earth-based perovskite crystals Rb2ScCl5·H2O and Rb3ScCl6. The reversible transformation between Rb2ScCl5·H2O and Rb3ScCl6 accompanied by the significant visible perception of the change of the luminescence color can be realized through the dehydration/hydration process in air. In addition to the favorable sensitivity to water, an in-depth study shows that the highly efficient photoluminescence (PL) of Sb3+ in both Rb2ScCl5·H2O and Rb3ScCl6 host matrixes arises from the self-trapped excitons (STEs) rather than the 5s2–5s15p1 transition of Sb3+ according to the density functional theory (DFT) calculation. It can be anticipated that this study will provide new insights into the luminescence mechanism of Sb3+ in perovskite crystals and a potential application in a sensitive sensor for probing water content.
研究领域:
材料科学
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光学
·
化学
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产品关联
DOI
高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
R. Teng,P. Cai,X. Pu,X. Wang,Q. Ai,J. Si,X. Yao,Z. Liu
Zero-dimension (0D) metal halides based on metals with the 5s 2 lone pair have attracted great attentions due to their strong triplet broadband emission. However, the conversion from weak afterglow to efficient and fast photoluminescence by regulating the composition of 0D metal halides is still a tough challenge. Herein, Sb 3+ ions-doped 0D (Ph 4 P) 2 ZrCl 6 ·4CH 3 CN metal halides were synthesized by a simple solution crystallization method. Compared with the weak triplet green 560 nm afterglow from the organic Ph 4 P + components, the emission of the Sb 3+ -doped material exhibits a strong orange photoluminescence at 660 nm with a high photoluminescence quantum yield of 72% by a host to dopant energy transfer process. In addition, a flexible large-sized X-ray scintillator screen with an area of 16 cm 2 was prepared using polydimethylsiloxane as the host matrix, which exhibits excellent scintillation properties with light yields of 8,290 photons/MeV, low detectable limits of 0.986 μGy/s, and a near-infrared broadband emission from 600 nm to 850 nm under steady-state X-ray excitation, which is highly compatible with the response range of the long-wave sensitive silicon-based photodetectors . Therefore, this work not only provides a deep insight into the energy transfer process in the 0D metal halide materials but also opens an alternative approach to realize flexible large-size near-infrared X-ray imaging based on the 0D metal halide scintillator.
研究领域:
材料科学
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光学
·
放射学
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Jiale Xue,Shuyao Wang,Xiande Peng,Zhengyan Lin,Xuehua Dong,Liling Cao,Ling Huang,Guohong Zou
We present two novel antimony(III)-based tellurite sulfate crystals, Sb2(TeO3)(SO4)2-P1̅ (I) and Sb2(TeO3)(SO4)2-P21/c (II), synthesized using a dual lone pair strategy that incorporates Sb3+ and Te4+ ions into a sulfate framework. This approach significantly enhances the birefringence of these compounds, with values of 0.11 and 0.10 at 546 nm, respectively, surpassing those of many previously reported mixed alkali metal/alkaline earth metal sulfates and tellurites. Both compounds also exhibit excellent UV transparency with cutoff edges at 292 and 294 nm, making them promising candidates for short-wave UV optical applications. Structural and theoretical analyses reveal that the enhanced birefringence arises from the synergistic effects of the stereochemically active lone pairs of Sb3+ and Te4+, which contribute to the optical anisotropy. This work highlights the potential of dual SCALP elements in improving the optical properties of sulfate-based crystals and provides new insights into designing high-performance optical materials with tailored properties for advanced UV technologies.
研究领域:
材料科学
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光学材料
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无机化学
·
晶体工程
·
光子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）