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    Manipulation of Bi3+/In3+ Transmutation and Mn2+-Doping Effect on the Structure and Optical Properties of Double Perovskite Cs2NaBi1-xInxCl6 / J. Zhou [et al.] // Adv. Opt. Mater. - 2019. - Vol. 7, Is. 8. - Ст. 1801435, DOI 10.1002/adom.201801435. - Cited References: 51. - J.Z. and X.M.R. contributed equally to this work. The present work was supported by the National Natural Science Foundation of China (Grant Nos. 51722202, 51572023, and 91622125) and Natural Science Foundations of Beijing (2172036). X.W.Z. acknowledges the support from National Key R&D Program of China (Grant No. 2016YFB0700700). . - ISSN 2195-1071
   Перевод заглавия: Влияние перестановок Bi3+/In3+ и Mn2+ -допирования на структуру и оптические свойства двойного перовскита Cs2NaBi1-xInxCl6

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
HALIDE DOUBLE PEROVSKITE
   LEAD-FREE
   ENERGY-TRANSFER
   NANOCRYSTALS
   BR
Кл.слова (ненормированные):
band gap engineering -- halide double perovskites -- Mn2+ doping
Аннотация: The halide double perovskite family represented by A2(B+,B3+)X6 can overcome the lead toxicity and enable generally large band gap engineering via B/B sites' transmutation or exotic dopants to fulfill the emerging applications in the optoelectronic fields. Herein, the design and the experimental synthesis of a new family of Mn2+‐doped Cs2NaBi1‐xInxCl6 crystals with an intense orange‐yellow emission band are reported, and the phase formation stability is discussed via a combined experimental–theoretical approach. Depending on the manipulation of Bi3+/In3+ combination, the band gap increases with In3+ content, and a subsequent evolution from indirect to direct band gap is verified. First‐principles calculations and parity analyses indicate a parity forbidden effect on Cs2NaInCl6, and a combination effect of absorption on Cs2NaBi1‐xInxCl6 from both Cs2NaBiCl6 and Cs2NaInCl6. The associated Mn2+‐doped photoluminescence depending on the Bi3+/In3+ substitution is also addressed from the variation of the different Mn–Cl environment and neighboring‐cation effect.

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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.
Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen Key Lab Flexible Memory Mat & Devices, Shenzhen 518060, Peoples R China.
Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China.
KSC SB RAS, Fed Res Ctr, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
South China Univ Technol, State Key Lab Luminescent Mat, 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; Rong, Ximing; Zhang, Peng; Molokeev, M. S.; Молокеев, Максим Сергеевич; Wei, Peijia; Liu, Quanlin; Zhang, Xiuwen; Xia, Zhiguo
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    Optically Modulated Ultra-Broad-Band Warm White Emission in Mn2+-Doped (C6H18N2O2)PbBr4 Hybrid Metal Halide Phosphor / G. J. Zhou [et al.] // Chem. Mater. - 2019. - Vol. 31, Is. 15. - P. 5788-5795, DOI 10.1021/acs.chemmater.9b01864. - Cited References: 47. - This work is supported by the National Natural Science Foundation of China (nos. 51722202 and 51572023), Natural Science Foundations of Beijing (2172036), the Fundamental Research Funds for the Central Universities (FRF-TP-18-002C1), and the Guangdong Provincial Science & Technology Project (no. 2018A050506004). . - ISSN 0897-4756. - ISSN 1520-5002
   Перевод заглавия: Оптически модулированное ультраширокополосное излучение теплого белого света в гибридном металл-галоидном люминофоре допированным Mn2 + (C6H18N2O2)PbBr4

РУБ Chemistry, Physical + Materials Science, Multidisciplinary
Рубрики:
LIGHT EMISSION
   PEROVSKITE NANOCRYSTALS
   ENERGY-TRANSFER
   STATE
   Br
Аннотация: Finding new low-dimensional metal halides with broad-band emission is attracting interest in single-component phosphor for white light-emitting diodes (WLEDs). The full-spectrum white light still remains a challenge as found in the two-dimensional hybrid material (C6H18N2O2)PbBr4 exhibiting the intrinsic free exciton (FE) and broad-band self-trap exciton (STE) emission upon 365 nm ultraviolet excitation, and a combined strategy has been proposed through doping the Mn2+ ions enabling a superposition of multiple emission centers toward the ultra-broad-band warm white light. The occupation of Mn2+ in (C6H18N2O2)PbBr4 has been discussed, and optical investigations verify that the warm white-light emission of Mn2+-doped (C6H18N2O2)PbBr4 originates from the coupling effects of the FE, STEs, and the 4T1–6A1 transition of the doped Mn2+. When the concentration of Mn2+ is 5%, the emission spectrum of the phosphor covers all visible-light areas with a full width at half maximum (FWHM) of about 230 nm. The high Ra (84.9) and warm light CCT (3577 K) values of the as-fabricated WLED lamp demonstrate that (C6H18N2O2)Pb1–xMnxBr4 can be promising as single-component white-light phosphor in solid-state lighting. Our work could provide a new understanding and perspective about hybrid metal halides for designing superior phosphor toward single-component white emission.

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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.
Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China.
Univ Chinese Acad Sci, Beijing 100049, 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.
Sun Yat Sen Univ, Sch Mat Sci & Engn, Sch Chem,Minist Educ, Key Lab Bioinorgan & Synthet Chem,State Key Lab O, Guangzhou 510275, Guangdong, Peoples R China.
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, Guojun; Jiang, Xingxing; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lin, Zheshuai; Zhao, Jing; Wang, Jing; Xia, Zhiguo
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    Hybrid Metal Halides with Multiple Photoluminescence Centers / M. Z. Li [et al.] // Angew. Chem. Int. Edit. - 2019. - Vol. 58, Is. 51. - P. 18670-18675, DOI 10.1002/anie.201911419. - Cited References: 42. - This work is supported by the National Natural Science Foundation of China (Nos. 51722202 and 51972118), Fundamental Research Funds for the Central Universities (D2190980), the Guangdong Provincial Science & Technology Project (2018A050506004) and by European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No. [819740], project SCALE-HALO). . - ISSN 1433-7851. - ISSN 1521-3773
   Перевод заглавия: Гибридные галогениды металлов с несколькими центрами фотолюминесценции

РУБ Chemistry, Multidisciplinary
Рубрики:
LIGHT EMISSION
PEROVSKITES
BR
Кл.слова (ненормированные):
light-emitting diodes -- manganese -- metal halides -- photoluminescence -- 0D materials
Аннотация: Very little is known about the realm of solid‐state metal halide compounds comprising two or more halometalate anions. Such compounds would be of great interest if their optical and electronic properties could be rationally designed. Herein, we report a new example of metal halide cluster‐assembled compound (C9NH20)9[Pb3Br11](MnBr4)2, featuring distinctly different anionic polyhedra, namely, a rare lead halide cluster [Pb3Br11]5− and [MnBr4]2−. In accordance with its multinary zero‐dimensional (0D) structure, this compound is found to contain two distinct emission centers, 565 nm and 528 nm, resulting from the formation of self‐trapped excitons and 4T1‐6A1 transition of Mn2+ ions, respectively. Based on the high durability of (C9NH20)9[Pb3Br11](MnBr4)2 upon light and heat, as well as high photoluminescence quantum yield (PLQY) of 49.8 % under 450 nm blue light excitation, white light‐emitting diodes (WLEDs) are fabricated, showcasing its potential in backlight application.

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Держатели документа:
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, 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.
South China Univ, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China.
South China Univ, Inst Opt Commun Mat, Guangzhou 510641, Guangdong, Peoples R China.
Swiss Fed Inst Technol, Lab Inorgan Chem, Dept Chem & Appl Biosci, Vladimir Prelog Weg 1, CH-8093 Zurich, Switzerland.
Empa Swiss Fed Labs Mat Sci & Technol, Lab Thin Films & Photovolta, Oberlandstr 129, CH-8600 Dubendorf, Switzerland.

Доп.точки доступа:
Li, Mingze; Zhou, Jun; Zhou, Guojun; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Morad, Viktoriia; Kovalenko, Maksym, V; Xia, Zhiguo
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    Unraveling the near-unity narrow-band green emission in zero-dimensional Mn2+-based metal halides: a case study of (C10H16N)2Zn1–xMnxBr4 solid solutions / G. J. Zhou, Z. Y. Liu, J. L. Huang [et al.] // J. Phys. Chem. Lett. - 2020. - Vol. 11, Is. 15. - P. 5956-5962, DOI 10.1021/acs.jpclett.0c01933. - Cited References: 32. - This work was supported by the National Natural Science Foundations of China (Grant No. 51972118, 51961145101, and 51722202), Fundamental Research Funds for the Central Universities (D2190980), Guangzhou Science & Technology Project (202007020005), the Guangdong Provincial Science & Technology Project (No. 2018A050506004), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X137). This work is also funded by RFBR according to the research project No. 19-5280003. C. Ma acknowledges the support from the Innovation and Entrepreneurship Programs for Returned Overseas Chinese Scholars offered by Chongqing Bureau of Human Resources and Social Security (CX2019055). Z. Xiao acknowledges the financial support from the Thousand Young Talents Program of China, the Startup Fund of Huazhong University of Science and Technology, and the Director Fund of Wuhan National Laboratory for Optoelectronics . - ISSN 1948-7185
   Перевод заглавия: Изучение узкополосного зеленого излучения в нульразмерных галогенидах металлов допированных Mn2+: пример твердых растворов (C10H16N)2Zn1-xMnxBr4

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Atomic, Molecular & Chemical
Рубрики:
Organic-inorganic hybrid
   Light emission
   White
   Br
Аннотация: Zero-dimensional (0D) Mn2+-based metal halides are potential candidates as narrow-band green emitters, and thus it is critical to provide a structural understanding of the photophysical process. Herein, we propose that a sufficiently long Mn–Mn distance in 0D metal halides enables all Mn2+ centers to emit spontaneously, thereby leading to near-unity photoluminescence quantum yield. Taking lead-free (C10H16N)2Zn1–xMnxBr4 (x = 0–1) solid solution as an example, the Zn/Mn alloying inhibits the concentration quenching that is caused by the energy transfer of Mn2+. (C10H16N)2MnBr4 exhibits highly thermal stable luminescence even up to 150 °C with a narrow-band green emission at 518 nm and a full width at half maximum of 46 nm. The fabricated white light-emitting diode device shows a high luminous efficacy of 120 lm/W and a wide color gamut of 104% National Television System Committee standard, suggesting its potential for liquid crystal displays backlighting. These results provide a guidance for designing new narrow-band green emitters in Mn2+-based metal halides.

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Держатели документа:
South China Univ Technol, Sch Mat Sci & Technol, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510641, Peoples R China.
Univ Sci & Technol Beijing, Beijing Municipal Key Lab New Energy Mat & Techno, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
Chongqing Univ Posts & Telecommun, CQUPT BUL Innovat Inst, Chongqing 400065, Peoples R China.
Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China.
Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ, Linfen 041004, Shanxi, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.

Доп.точки доступа:
Zhou, Guojun; Liu, Zhiyang; Huang, Jinglong; Molokeev, M. S.; Молокеев, Максим Сергеевич; Xiao, Zewen; Ma, Chonggeng; Xia, Zhiguo
}
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