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A high thermal stability Cr3+-doped gallate far red phosphor for plant lighting: structure, luminescence enhancement and application prospect / C. Zhou, L. Peng, Z. H. Kong [et al.] // J. Mater. Chem. C. - 2022. - Vol. 10, Is. 15. - P. 5829-5839, DOI 10.1039/d2tc00614f. - Cited References: 39. - The authors would like to gratefully acknowledge funds from the National Natural Science Foundation of China (Grant no. 51974123), the Distinguished Youth Foundation of Hunan Province (Grant no. 2020JJ2018), Key R & D projects in Hunan Province (2020WK2016 & 2020SK2032), the Hunan High Level Talent Gathering Project (2019RS1077 & 2020RC5007), the Natural Sciences Foundation of Hunan Agricultural University (19QN11), the Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Resource Utilization Science Foundation (19KFXM12), the Changsha Science and technology plan (KH2005114), the Scientific Research Fund of Hunan Provincial Education Department (19C0903) and the Innovation Training Program for College Students of Hunan Province (No. S202010537012) . - ISSN 2050-7526. - ISSN 2050-7534

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
EMITTING PHOSPHOR
TUNING PHOTOLUMINESCENCE
LEDS
Аннотация: Cationic substitution is a common material modification strategy. Generally, it follows the principles of radius matching, valency equilibrium and stoichiometric substitution. However, radius-mismatched, nonstoichiometric-ratio ion substitution can achieve unexpected experimental results. Such unexpected results are very important for expanding the research of materials, but the modification mechanism is still unclear. In this work, the optical performance of ZnGa2O4:0.02Cr3+ (ZGO:0.02Cr3+) is effectively regulated by chemical unit cosubstitution (Ge4+–Li+/Na+ for Ga3+–Zn2+) and excess cation substitution synergetic strategies, and the thermal stability is retained at 97.7% at room temperature and 150 °C. Ge4+–Li+ and Ge4+–Na+ replace the lattice position of Ga3+–Zn2+ to enhance the photoluminescence (PL) intensity and quantum efficiency (QE) of ZGO:0.02Cr3+. The optimal doping contents of Ge4+–Li+ and Ge4+–Na+ are all 0.3 mol (PL intensity is 130.3% and 153.4% and QE = 77.4% and 85.1%). With further addition of Li+ ions, the emission intensity and QE continued to increase to 176.4% and 83.8%, respectively. The synergistic effect of the mechanism on optical properties is explained via Rietveld refinement, optical band gap energy and thermoluminescence. Finally, LED devices were fabricated by using the ZGO:0.02Cr3+,0.03Ge4+,0.11Li+ phosphor to investigate the effect on plant growth. The growth period was reduced and the fruit quality was improved in dwarf potted tomato, which shows the application prospect in plant growth of the ZGO:0.02Cr3+ phosphor.

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Держатели документа:
Hunan Agr Univ, Sch Chem & Mat Sci, Changsha 410128, Peoples R China.
Hunan Opt Agr Engn Technol Res Ctr, Changsha 410128, Peoples R China.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Sun Yat Sen Univ, Sch Chem, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China.

Доп.точки доступа:
Zhou, Cheng; Peng, L.u.; Kong, Zihui; Wu, Meihan; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhou, Zhi; Wang, Jing; Xia, Mao
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    A highly selective and rapid solvatochromic material for amide solvent detection / X. Zhang, Y. Zhao, Y. Wei [et al.] // Chem. Commun. - 2022. - Vol. 58, Is. 85. - P. 11953-11956, DOI 10.1039/d2cc04566d. - Cited References: 24. - This work was supported by the National Natural Science Foundation of China (Grant No. 52072349), the Natural Science Foundation of Zhejiang Province (No. LR22E020004 and LZ22A040005), the State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology) (No. SYSJJ2022-11), and the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan . - ISSN 1364-548X
   Перевод заглавия: Высокоселективный и быстрый сольватохромный материал для обнаружения амидных растворителей
Кл.слова (ненормированные):
amide -- solvent -- luminescence
Аннотация: The detection of amide solvents is essential to human health due to their carcinogenicity. A simple, solvatochromic luminescent material is presented for quick and accurate detection of amides. The luminescence color variation from blue to yellow is ascribed to the amide-induced phase transformation from Cs2ZnBr4:Cu to CsBr:Cu+/Cu2+.

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Держатели документа:
Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, Hubei 430074, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport UniversityKhabarovsk 680021, Russian Federation
Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan, Hubei 430074, China
Zhejiang Institute, China University of Geosciences, Hangzhou, 311305, China

Доп.точки доступа:
Zhang, X.; Zhao, Y.; Wei, Y.; Qiu, L.; Wang, W.; Wang, Z.; Yang, H.; Chen, K.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Li, G.
}
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    A novel red-emitting La2CaHfO6:Mn4+ phosphor based on double perovskite structure for pc-WLEDs lighting / G. C. Xing [et al.] // CrystEngComm. - 2019. - Vol. 21, Is. 23. - P. 3605-3612, DOI 10.1039/c9ce00556k. - Cited References: 47. - This work is financially supported by the National Natural Science Foundation of China (NSFC No. 51672259). . - ISSN 1466-8033
   Перевод заглавия: Новый красный люминофор La2CaHfO6: Mn4+ на основе структуры двойного перовскита для светодиодных ламп pc-WLED

РУБ Chemistry, Multidisciplinary + Crystallography
Рубрики:
LUMINESCENCE PROPERTIES
   ELECTRONIC-STRUCTURE
   OPTICAL-PROPERTIES
   SITE
Аннотация: Non-rare earth doped oxides with red emission are one of the current research hotspots for achieving the warm white light range in the phosphor converted white light emitting diodes (pc-WLEDs) field. In the current work, a novel Mn4+-activated La2CaHfO6 red phosphor is reported for the first time and its crystal structure is analyzed by Rietveld refinement. The photoluminescent properties of La2CaHfO6:Mn4+ are investigated in detail with the help of diffuse refletance spectroscopy, photoluminescence spectroscopy, and temperature-dependent PL spectroscopy. Based on the diffuse refletance spectra, the calculated optical band gap for La2CaHfO6 is 4.9 eV, indicating that La2CaHfO6 could be a suitable host for activators' doping. Under 380 nm near-ultraviolet (n-UV) light excitation, the as-prepared La2CaHfO6:Mn4+ displays intense red emission centered at 693 nm. Through an accurate calculation of Dq/B (2.47) and nephelauxetic effect β1 (0.949), the origination of strong crystal field (CF) and deep-red emission is demonstrated. By combining the representative La2CaHfO6:0.002Mn4+, blue BAM:Eu2+, and green (Ba,Sr)2SiO4:Eu2+ phosphors with a 380 nm UV chip to fabricate the pc-WLEDs device, a white light is obtained with low correlated color temperature (CCT = 5165 K) and high color rendering index (Ra = 87.8), demonstrating that the as-prepared La2CaHfO6:Mn4+ phosphors can be used as red-emitting candidate in pc-WLEDs lighting.

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Держатели документа:
China Univ Geosci, Fac Mat Sci & Chem, Minist Educ, Engn Res Ctr Nanogeomat, 388 Lumo Rd, Wuhan 430074, Hubei, Peoples R China.
FRC KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Xing, Gongcheng; Feng, Yuxin; Gao, Zhiyu; Tao, Mengxuan; Wang, Hongquan; Wei, Y.i.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Li, Guogang
}
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    A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+: Synthesis, crystal structure and luminescence properties / H. Liu [et al.] // RSC Adv. - 2016. - Vol. 6, Is. 29. - P. 24577-24583, DOI 10.1039/c5ra23348h. - Cited References: 33. - We gratefully acknowledge the financial support by the National Natural Science Foundations of China (Grant no. 41172053), the Fundamental Research Funds for the Central Universities (Grant no. 2652013043), and Science and Technology Innovation Fund of the China University of Geosciences (Beijing). . - ISSN 2046-2069
   Перевод заглавия: Новый однофазный люминофор Ca9La(PO4)5(SiO4)F2:Dy3+, излучающий белый свет: синтез, кристаллическая структура и люминесцентные свойства

РУБ Chemistry, Multidisciplinary
Рубрики:
Energy-transfer
   Diodes
   LEDs
   Emission
   Ions
   Excitation
   Ce3+
   Eu2+
   Ln
Аннотация: A novel single-phase white light emitting phosphor Ca9La(PO4)5(SiO4)F2:Dy3+ was prepared through traditional high-temperature solid state technology. The crystal structures of Ca9La(PO4)5(SiO4)F2 with or without Dy3+ ions were refined by the Rietveld method. The diffuse reflection spectra, excitation spectra, emission spectra, and decay times were characterized to investigate the photoluminescence properties for application in white light-emitting diodes. The results showed that the Ca9La(PO4)5(SiO4)F2:Dy3+ phosphor could efficiently assimilate n-UV light and emit blue (∼485 nm) and yellow light (∼580 nm), originating from the f-f transitions of Dy3+. The critical Dy3+ quenching concentration (QC) was determined to be about 15 mol%, and the corresponding QC mechanism was verified to be the dipole-dipole interaction. Additionally, the emission colors of all samples were located close to the ideal white light region, and the optimal chromaticity coordinates and correlated color temperature (CCT) were determined to be (x = 0.338, y = 0.336) and 5262 K. All the above results indicate that the as-prepared Ca9La(PO4)5(SiO4)F2:Dy3+ phosphor could serve as a promising candidate for white-light n-UV-LEDs. © The Royal Society of Chemistry 2016.

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Держатели документа:
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
Laboratory of Crystal Physics, Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation

Доп.точки доступа:
Liu, H.; Liao, L.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Guo, Q.; Zhang, Y.; Mei, L.
}
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    Abnormal Bi3+ activated NIR phosphor toward multifunctional LED applications / Y. Li, S. Gai, H. Zhu [et al.] // Ceram. Int. - 2023. - Vol. 49, Is. 23, Pt. B. - P. 39671-39680, DOI 10.1016/j.ceramint.2023.09.322. - Cited References: 45. - This research was jointly supported by the National Natural Science Foundation of China (Grant No. 51974123 ), the Key R & D Projects in Hunan Province ( 2021SK2047 , 2022NK2044 ), the Natural Science Foundation of Hunan Province, China (Grant No. 2021JJ40261 ), Wangcheng Science and Technology Plan ( KJ221017 ), the Science and Technology Innovation Program of Hunan Province ( 2022WZ1022 ) and the Strategic Academic Leadership Program “Priority-2030” for the Siberian Federal University . - ISSN 0272-8842. - ISSN 1873-3956
   Перевод заглавия: Аномальный Bi3+-активированный БИК-люминофор для применения в многофункциональных светодиодах
Кл.слова (ненормированные):
Phosphor -- Luminescence -- Bi3+ -- NIR emission
Аннотация: Herein, the strategy of replacing Ge4+ with smaller Si4+ was adopted to realize the site-selective occupation of Bi3+ activator in the small ring and obtain a near-infrared light-emitting in Zn2(Ge,Si)O4. The designed phosphor exhibits a broad NIR emission with FWHM ≈104 nm in the 650−860 nm region, with a center emission wavelength of about 750 nm. Interestingly, the more sensitive four-member ring sites gradually replaced the six-member ring sites and realized a large-scope photoluminescence regulation from blue to NIR by just after the crystal field engineering. The possible reasons for this phenomenon can be interpreted by centroid shift (εc) and crystal field splitting (εcfs). This work not only provides new insights for the development of Bi3+-activated NIR-emitting phosphors, but also provides thoughts for revealing the potential NIR luminous mechanism of Bi3+.

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Держатели документа:
College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan, Changsha, 410128, China
Hunan Provincial Engineering Technology Research Center for Optical Agriculture, Hunan Agricultural University, Changsha, 410128, China
School of Materials Science and Engineering, Hunan Agricultural University, Hunan, Changsha, 410128, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Li, Y.; Gai, S.; Zhu, H.; Yin, J.; Guo, W.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lu, X.; Xia, M.; Zhou, Z.
}
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    Guan, M.
    Atomic deciphering of cation exchange mechanism in upconversion nanoparticles / M. Guan, M. S. Molokeev, J. Zhou // J. Lumin. - 2020. - Vol. 224. - Ст. 117289, DOI 10.1016/j.jlumin.2020.117289. - Cited References: 36. - The authors acknowledge the Science and Technology Innovation Committee of Shenzhen (Grant No. KQTD20170810110913065), Australian Research Council (ARC) Discovery Early Career Researcher Award Scheme (J. Z., DE 180100669), and the China Scholarship Council (Ming Guan, No. 201506400025) . - ISSN 0022-2313
   Перевод заглавия: Атомная расшифровка катионообменного механизма в наночастицах с апконверсией
Кл.слова (ненормированные):
Mn2+ -- β-NaYF4 nanoparticles -- Cation exchange -- Rietveld refinement
Аннотация: Transition metal ion doping in upconversion nanoparticles (UCNPs) provides an effective way to enhance the luminescence for their wide array of applications. However, the doping sites of transition metal ions have not been comprehensively explored, and commonly assumed that transition metal ions replace the trivalent lanthanides within the lattice. Here we report that cation exchange of transition metal (Mn2+) in β-NaYF4:Yb3+/Er3+ UCNPs occurs through alkaline metal (Na+) replacement, via 2Na+ ↔ Mn2+ + Vacancy reaction. This process distorts the LnF9 polyhedrons and tailors the surrounding environment around the trivalent lanthanides, thereby improving the upconversion intensity from active lanthanides. Further confirmed by core-shell design and spectroscopic study, we prove that the transition–alkaline metal exchange enables both the emission enhancement and transition probability variation of activators.

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Держатели документа:
UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhou, J.
}
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    Bismuth activated full spectral double perovskite luminescence materials by excitation and valence control for future intelligent LED lighting / Y. Wei, H. Yang, Z. Y. Gao [et al.] // Chem. Commun. - 2020. - Vol. 56, Is. 64. - P. 9170-9173, DOI 10.1039/d0cc03975f. - Cited References: 27. - This work was supported by the National Natural Science Foundation of China (Grant No. 51672259) and the Fundamental Research Funds for the National Universities, China University of Geosciences (Wuhan) (No. 1910491T02) . - ISSN 1359-7345. - ISSN 1364-548X
   Перевод заглавия: Активированные висмутом люминесцентные материалы двойных перовскитов, с полным спектром излучения, который получается за счет управления возбуждением и валентностью, для интеллектуального светодиодного освещения в будущем

РУБ Chemistry, Multidisciplinary
Рубрики:
PHOTOLUMINESCENCE
   PHOSPHORS
   Bi3+
   MODULATION
   CRYSTAL
Аннотация: A novel La2Mg1.14Zr0.86O6:Bi3+ double perovskite phosphor with excitation-induced blue/green photoluminescence tuning is reported. By designing Bi3+ → Eu3+ energy transfer, single-composition white light with wide-scale adjustable corrected color temperatures (CCTs) is successfully achieved. This work initiates a new insight to explore phosphors with excitation-induced photoluminescence tuning and wide CCT control for future intelligent LED lighting.

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Держатели документа:
China Univ Geosci, Engn Res Ctr Nanogeomat, Minist Educ, Fac Mat Sci & Chem, Wuhan 430074, Hubei, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.

Доп.точки доступа:
Wei, Y.i.; Yang, Hang; Gao, Zhiyu; Xing, Gongcheng; Molokeev, M. S.; Молокеев, Максим Сергеевич; Li, Guogang
}
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    Broad luminescence tuning in Mn2+-doped Rb2Zn3(P2O7)2 via doping level control based on multiple synergies / Q. Liu, P. Dang, G. Zhang [et al.] // CrystEngComm. - 2022. - Vol. 24, Is. 31. - P. 5622-5629, DOI 10.1039/d2ce00719c. - Cited References: 31. - We acknowledge the financial support from the National Natural Science Foundation of China (NSFC No. 51932009, 51720105015, 51929201, 52072349, and 52172166), Projects for the Science and Technology Development Plan of Jilin Province (20210402046GH), and the Natural Science Foundation of Zhejiang Province (LR22E020004) . - ISSN 1466-8033
   Перевод заглавия: Широкая перестройка люминесценции в Rb2Zn3(P2O7)2, легированном Mn2+, посредством управления уровнем легирования на основе множественного синергизма
Кл.слова (ненормированные):
Binary alloys -- Color -- Energy transfer -- High temperature applications -- Light emission -- Solid state reactions -- Centrosymmetric structures -- Crystallographic sites -- Doping levels -- Emission color -- Energy-transfer -- High temperature solid-state reaction -- Luminescence tuning -- Multi band -- Non-centrosymmetric -- Orange-red -- Phosphors
Аннотация: Here we constructed a series of novel non-centrosymmetric structure phosphors [Rb2Zn3(P2O7)2:Mn2+] by a high-temperature solid-state reaction. The multiband emission can be designed by Mn2+ preferentially occupying three types of crystallographic sites in Rb2Zn3(P2O7)2:Mn2+. The emission color could be continuously tuned from yellow-green to orange-red via multiple synergies among crystallographic site engineering, energy transfer, and Mn-Mn dimmers alone through the dopant concentration. These color-tunable phosphors have good thermal stability (I150 °C/I25 °C = 91%). The as-prepared pc-WLED has a low corresponding color temperature (CCT = 4820 K) and a high color rendering index (Ra = 90.4) with CIE color coordinates of (0.351, 0.358). These results show that emission-tunable Rb2Zn3(P2O7)2:xMn2+ phosphors are potential candidates for application in n-UV-based pc-WLED devices. This study offers a new insight for wide-range tuning of PL properties by using crystallographic site engineering through changing the doping level in Mn-activated phosphors.

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Держатели документа:
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun, 130022, China
School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
Faculty of Materials Science and Chemistry, China University of Geoscience, Wuhan, 430074, China
Zhejiang Institute, China University of Geosciences, Hangzhou, 311305, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Department of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation

Доп.точки доступа:
Liu, Q.; Dang, P.; Zhang, G.; Lian, H.; Li, G.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Cheng, Z.; Lin, J.
}
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    Broad-Band Emission in a Zero-Dimensional Hybrid Organic [PbBr6] Trimer with Intrinsic Vacancies / J. Zhou [et al.] // J. Phys. Chem. Lett. - 2019. - Vol. 10, Is. 6. - P. 1337-1341, DOI 10.1021/acs.jpclett.9b00238. - Cited References: 28. - This work was supported by the National Natural Science Foundation of China (Grant Nos. 51722202, 91622125, 51572023, 11574003, 21833009, and 21533010) and the Natural Science Foundation of Beijing (2172036). We were grateful to Prof. Keli Han for his support to supply the femtosecond transient absorption spectroscopy device. . - ISSN 1948-7185
   Перевод заглавия: Широкополосная эмиссия в нульмерном гибридном органическом тримере [PbBr6] с внутренними вакансиями

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Atomic, Molecular & Chemical
Рубрики:
WHITE-LIGHT EMISSION
HALIDE PEROVSKITES
LUMINESCENCE
Аннотация: The understanding of broad-band emission mechanisms on low-dimensional metal halides is an urgent need for the design principle of these materials and their photoluminescence tuning. Herein, a new zero-dimensional (0D) organic–inorganic hybrid material (C9NH20)6Pb3Br12 has been discovered, in which face-sharing PbBr6 trimer clusters crystallize with organic cations (C9NH20+), forming periodic structure with 0D blocks. Broad-band green emission peaking at about 522 nm was observed for this material, with a full width at half-maximum (fwhm) of 134 nm. The emission was attributed to excitons trapped at controlled intrinsic vacancies, and this is the new example in 0D metal halides, also confirmed by spectroscopy analysis and first-principles calculations. Discovery of the single-crystalline hybrid material and observation of defect-induced luminescence extend the scope of bulk 0D materials and understanding of photophysical properties for optoelectronic applications.

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Держатели документа:
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China.
Anhui Normal Univ, Minist Educ, Key Lab Funct Mol Solids, Anhui Key Lab Optoelect Mat Sci & Technol, Wuhu 241000, Anhui, Peoples R China.
Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116000, Peoples R China.
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China.
South China Univ Technol, Inst Opt Commun Mat, Guangzhou 510641, Guangdong, Peoples R China.

Доп.точки доступа:
Zhou, Jun; Li, Mingze; Ning, Lixin; Zhang, Ruiling; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Yang, Songqiu; Han, Keli; Xia, Zhiguo
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10.

    Broadband light emitting zero-dimensional antimony and bismuth-based hybrid halides with diverse structures / C. K. Deng, S. Q. Hao, K. J. Liu [et al.] // J. Mater. Chem. C. - 2021. - Vol. 9, Is. 44. - P. 15942-15948, DOI 10.1039/d1tc04198c. - Cited References: 52. - This work was supported by Beijing Municipal Natural Science Foundation (2182080) and the National Natural Science Foundation of China (51972021 and 51702329). The work was partly supported by the Fundamental Research Funds for the Central Universities (FRF-IDRY-19-005) and by the RFBR according to the research project No. 19-52-80003. S. H. and C. W. (DFT calculations) acknowledge support from the Department of Energy, Office of Science Basic Energy Sciences under Grant DE-SC0014520. Access to QUEST, the supercomputing resources facilities at Northwestern University, is also acknowledged . - ISSN 2050-7526. - ISSN 2050-7534
   Перевод заглавия: Широкополосное излучение от нульмерных гибридных галогенидов на основе сурьмы и висмута с разнообразной структурой

РУБ Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
CRYSTAL-STRUCTURE
   LONE-PAIR
   EMISSION
   PEROVSKITES
   TIN
   LUMINESCENCE
Аннотация: Low-dimensional organic–inorganic metal halides have recently attracted extensive attention because of their various structures and distinguished photoelectric properties. Herein, we report a series of new zero-dimensional organic–inorganic hybrid metal halides: (TMEDA)3Bi2Cl12·H2O, (TMEDA)3Bi2Br12·H2O, (TMEDA)3Sb2Br12·H2O, and (TMEDA)5Sb6Cl28·2H2O [TMEDA = N,N,N′·trimethylethylenediamine]. (TMEDA)3M2X12·H2O (M = Bi or Sb, X = Cl or Br) crystallizes in the monoclinic space group P21/n, and (TMEDA)5Sb6Cl28·2H2O crystallizes in the orthorhombic space group Pnma. (TMEDA)3M2X12 possesses a zero-dimensional structure with the metal halide ions of [MBr6]3− isolated by the organic TMEDA2+ cations. Interestingly, the (TMEDA)5Sb6Cl28·2H2O structure consists of a combination of corner-connected octahedra [Sb4Cl18]6− and edge-shared [Sb2Cl10]4−, which is quite rare. The light emission of all these compounds was measured, and (TMEDA)3Sb2Br12·H2O exhibits the most intense luminescence. Upon 400 nm ultraviolet light excitation, (TMEDA)3Sb2Br12·H2O exhibited strong broadband yellow emission centered at 625 nm with a full-width at half-maximum of ∼150 nm originating from self-trapped excitons. This work suggests the possibility of new types of hybrid halides by introducing different metal centers and probing the structural evolution and photoluminescent properties, serving as a reference for the relationship between structure and luminescent performance and demonstrating their potential use as phosphors in light-emitting diodes.

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Держатели документа:
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China.
Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
RAS, SB, Lab Crystal Phys, Kirensky Inst Phys,Fed Res Ctr KSC, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Linfen 041004, Shanxi, Peoples R China.

Доп.точки доступа:
Deng, Chenkai; Hao, Shiqiang; Liu, Kunjie; Molokeev, M. S.; Молокеев, Максим Сергеевич; Wolverton, Christopher; Fan, Liubing; Zhou, Guojun; Chen, D.a.; Zhao, Jing; Liu, Quanlin; Beijing Municipal Natural Science FoundationBeijing Natural Science Foundation [2182080]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51972021, 51702329]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [FRF-IDRY-19-005]; RFBRRussian Foundation for Basic Research (RFBR) [19-52-80003]; Department of Energy, Office of Science Basic Energy SciencesUnited States Department of Energy (DOE) [DE-SC0014520]
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