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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Val'kov V. V., Zlotnikov A. O., Fedoseev A. D., Shustin M. S.
Заглавие : A set of Majorana zero modes on the triangular lattice in the coexistence phase of superconductivity and noncollinear magnetic order
Коллективы : Days of the Condensed Matter University of Bordeaux, Journées de la matiére condensée
Место публикации : The 15th Days of the Condensed Matter (JMC'15): abstracts. - 2016. - P.45
Примечания : References: 4. - This study was funded by RFBR in part according to the research project No. 16-02-00073-a. A.O.Z. is grateful for support of the Grant of the President of the Russian Federation SP-1370.2015.5
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Liu, Qin, Dang, Peipei, Zhang, Guodong, Molokeev M. S., Polyutov, Sergey, Lian, Hongzhou, Cheng, Ziyong, Li, Guogang, Lin, Jun
Заглавие : Achieving excellent thermostable red emission in singly Mn2+-doped near zero thermal expansion (NZTE) material Li2Zn3(P2O7)2
Колич.характеристики :10 с
Место публикации : J. Mater. Chem. C. - 2023. - Vol. 11, Is. 31. - P.10684-10693. - ISSN 20507526 (ISSN), DOI 10.1039/D3TC01683H. - ISSN 20507534 (eISSN)
Примечания : Cited References: 62. - This work wasfinancially supported by the National Science and Technology Major Project (2022YFB3503800), the Projects for Science and Technology Development Plan of Jilin Province (20210402046GH), the National Natural Science Foundation of China (NSFC No. 51932009, 51929201, 52072349, 52172166), the Natural Science Foundation of Zhejiang Province (LR22E020004), the Project funded by China Postdoctoral Science Foundation (2022TQ0365), and the Ministry of Science and High Education of Russian Federation (Project No. FSRZ2023-0006), M.S. Molokeev and S.P. Polyutov acknowledge the support by the Ministry of Science and High Education of Russian Federation (Project No. FSRZ-2023-0006)
Аннотация: The design of thermostable phosphor is still a pivotal challenge in pc-WLED applications. Herein, an efficient strategy is proposed to design excellent thermostable red emission in singly Mn2+-doped near zero thermal expansion (NZTE) material Li2Zn3(P2O7)2. Under the excitation of 412 nm wavelength, the emission could be tuned from 636 to 672 nm by increasing the Mn2+ doping level via synthetic effect among crystal field, the exchange coupling interaction in Mn-Mn dimers and energy transfer in different luminescence centers. The PL intensity of LZPO:Mn2+ maintains 97% at 150 °C and 94% at 200 °C of initial intensity at the room temperature. During the heat process, the LZPO presents near zero thermal expansion, which contributes to the nearly unaffected PL intensity. The traps assist energy transfer to luminescent center is also compensated for the emission loss. This work not only offers a perspective idea for elucidating the correlation between crystal structure and optical properties, but also opens a new way in line with that of designing excellent thermostable luminescent materials based on NZTE materials in self-reduction system.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : Epsilon-Near-Zero Absorber by Tamm Plasmon Polariton
Коллективы : RFBR; MOST [19-52-52006]
Место публикации : Photonics. - 2019. - Vol. 6, Is. 1. - Ст.28. - ISSN 2304-6732, DOI 10.3390/photonics6010028
Примечания : Cited References: 45. - This research was funded by RFBR according to the research project No. 18-32-00053. I.V.T. and S.Y.V. acknowledge financial support from RFBR and MOST according to the research project No. 19-52-52006.
Предметные рубрики: PERFECT ABSORPTION
PHOTONIC CRYSTAL
PROPAGATION
LIGHT
Ключевые слова (''Своб.индексиров.''): photonic crystal--nanocomposite--epsilon near-zero material--tamm plasmon polariton
Аннотация: Two schemes of excitation of a Tamm plasmon polariton localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity have been investigated in the framework of the temporal coupled-mode theory. The parameters of the structure have been determined, which correspond to the critical coupling of the incident field with a Tamm plasmon polariton and, consequently, ensure the total absorption of the incident radiation by the structure. It has been established that the spectral width of the absorption line depends on the scheme of Tamm plasmon polariton excitation and the parameters of a nanocomposite film. The features of field localization at the Tamm plasmon polariton frequency for different excitation schemes have been examined. It has been demonstrated that such media can be used as narrowband absorbers based on Tamm plasmon polaritons localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons: publisher's note (vol 36, pg 2817, 2019)
Коллективы : Russian Foundation for Basic Research Russian Foundation for Basic Research (RFBR) [19-52-52006, 18-32-00053]; Taiwan Ministry of Science and Technology [108-2923E-009-003-MY3]
Место публикации : J. Opt. Soc. Am. B. - 2020. - Vol. 37, Is. 1. - P.167-167. - ISSN 0740-3224, DOI 10.1364/JOSAB.385427. - ISSN 1520-8540(eISSN)
Примечания : Cited References: 1. - The reported study was funded by Russian Foundation for Basic Research project No. 18-32-00053 and by a joint project of the Russian Foundation for Basic Research, project no. 19-52-52006, and the Taiwan Ministry of Science and Technology, project no. 108-2923E-009-003-MY3
Аннотация: This publisher’s note corrects the funding and acknowledgment sections in J. Opt. Soc. Am. B 36, 2817 (2019)
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons
Место публикации : J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 10. - P.2817-2823. - ISSN 07403224 (ISSN), DOI 10.1364/JOSAB.36.002817
Примечания : Cited References: 44. - The reported study was funded by RFBR according to the research project No 18-32-00053 and financial support RFBR and MOST according to the research project No 19-52-52006.
Аннотация: We demonstrate the possibility of using transparent conducting oxides [aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), indium tin oxide (ITO)] to form Tamm plasmon polaritons in the near-infrared spectral range where the permittivity of oxides is near zero. The spectral properties of the structures are investigated in the framework of the temporal coupled-mode theory and confirmed by the transfer matrix method. It is found that in the critical coupling conditions, the maximal Q-factor of a Tamm plasmon polariton is achieved when a photonic crystal is conjugated with the AZO film, while at the conjugation with the ITO films, the broadest spectral line is obtained. The sensitivity of the wavelength and spectral width of the Tamm plasmon polariton to changes in the oxide film thickness, bulk concentration of a dopant, and angle of incidence is demonstrated.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : Two types of localized states in a photonic crystal bounded by an epsilon near zero nanocomposite
Место публикации : Photonics. - 2018. - Vol. 5, Is. 3. - Ст.22. - ISSN 23046732 (ISSN), DOI 10.3390/photonics5030022
Примечания : Cited References: 53
Ключевые слова (''Своб.индексиров.''): photonic crystal--nanocomposite--epsilon near zero material--tamm plasmon polariton
Аннотация: The spectral properties of a one-dimensional photonic crystal bounded by a resonant absorbing nanocomposite layer with the near-zero permittivity have been studied. The problem of calculating the transmittance, reflectance, and absorptance spectra of such structures at the normal and oblique incidence of light has been solved. It is shown that, depending on the permittivity sign near zero, the nanocomposite is characterized by either metallic or dielectric properties. The possibility of simultaneous formation of the Tamm plasmon polariton at the photonic crystal/metallic nanocomposite interface and the localized state similar to the defect mode with the field intensity maximum inside the dielectric nanocomposite layer is demonstrated. Specific features of field localization at the Tamm plasmon polariton and defect mode frequencies are analyzed. © 2018 by the authors.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Balyzin M., Sadrieva Z., Belyakov M. A., Kapitanova P., Sadreev A. F., Bogdanov A.
Заглавие : Bound state in the continuum in 1D chain of dielectric disks: Theory and experiment
Коллективы : International Conference on Metamaterials and Nanophotonics
Место публикации : J. Phys. Conf. Ser. - 2018. - Vol. 1092: 3rd International Conference on Metamaterials and Nanophotonics, METANANO 2018 (17 - 21 September 2018). - Ст.012012. - , DOI 10.1088/1742-6596/1092/1/012012
Примечания : Cited References: 11. - This work is supported by RSF (17-12-01581)
Ключевые слова (''Своб.индексиров.''): 1-d chains--bound state--ceramic disks--dielectric disks--ghz frequencies--material loss--quadratic growth--zero angular momentum
Аннотация: In this work we experimentally observe a symmetry protected optical bound state in the continuum (BIC) with zero angular momentum in 1D array of ceramic disks at GHz frequencies. We analyze the dependence of Q factor of BIC on the number of the disks and the level of the material losses. We confirmed theoretical prediction about quadratic growth of the Q factor with the number of the disks and its following saturation due to material losses.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhou, Jun, Li, Mingze, Ning, Lixin, Zhang, Ruiling, Molokeev M. S., Zhao, Jing, Yang, Songqiu, Han, Keli, Xia, Zhiguo
Заглавие : Broad-Band Emission in a Zero-Dimensional Hybrid Organic [PbBr6] Trimer with Intrinsic Vacancies
Место публикации : J. Phys. Chem. Lett. - 2019. - Vol. 10, Is. 6. - P.1337-1341. - ISSN 1948-7185, DOI 10.1021/acs.jpclett.9b00238
Примечания : 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.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deng, Chenkai, Hao, Shiqiang, Liu, Kunjie, Molokeev M. S., Wolverton, Christopher, Fan, Liubing, Zhou, Guojun, Chen, D.a., Zhao, Jing, Liu, Quanlin
Заглавие : Broadband light emitting zero-dimensional antimony and bismuth-based hybrid halides with diverse structures
Коллективы : 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]
Место публикации : J. Mater. Chem. C. - 2021. - Vol. 9, Is. 44. - P.15942-15948. - ISSN 2050-7526, DOI 10.1039/d1tc04198c. - ISSN 2050-7534(eISSN)
Примечания : 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
Предметные 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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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhou, Guojun, Ding, Jialiang, Jiang, Xingxing, Zhang, Jian, Molokeev M. S., Ren, Qiqiong, Zhou, Jun, Li, Shili, Zhang, Xian-Ming
Заглавие : Coordination units of Mn2+ modulation toward tunable emission in zero-dimensional bromides for white light-emitting diodes
Место публикации : J. Mater. Chem. C. - 2022. - Vol. 10, Is. 6. - P.2095-2102. - ISSN 2050-7526, DOI 10.1039/d1tc05680h. - ISSN 2050-7534(eISSN)
Примечания : Cited References: 57. - The present work was supported by the Natural Science Foundation of China (21871167), the 1331 Project of Shanxi Province and the Postgraduate Innovation Project of Shanxi Normal University (2019XBY018), the Beijing Natural Science Foundation (No. 2214068) and funded by RFBR according to the research project no. 19-52-80003
Предметные рубрики: HALIDE PEROVSKITE NANOCRYSTALS
RECENT PROGRESS
DOPING MN2+
Аннотация: Organic–inorganic metal halides have become a multifunctional platform for manipulating photoluminescence due to highly efficient and tunable emissions, especially for lead-free Mn2+-based halides. Herein, the zero-dimensional (0D) bromides of (C5H14N3)2MnBr4 and (CH6N3)2MnBr4 with different coordination environments were designed and synthesized by a solvent evaporation method. They exhibit green and red broadband emission peaks at 528 nm and 627 nm with high photoluminescence quantum yields of 86.83% and 61.91%, respectively, which are attributed to the d–d transition (4T1(G) → 6A1(S)) of [MnBr4]2− tetrahedral and [Mn3Br12]6− octahedral units. The cases emphasize the effect of organic ligands on the intrinsic emissions of Mn2+ ions, thereby revealing the luminescence mechanism of Mn2+ ions in 0D isolated structures through the Tanabe–Sugano (TS) energy diagram. Thanks to their bright and stable emissions, the fabricated white light-emitting diode (LED) based on (C5H14N3)2MnBr4 and (CH6N3)2MnBr4 provides an outstanding color rendering index (Ra) of 90.8 at a correlated color temperature (CCT) of 3709 K, along with the CIE chromaticity coordinates of (0.3985, 0.3979) and a luminous efficacy of 51.2 lm W−1. This work aims at clarifying the relationship between the coordination units of Mn2+ and tunable emissions, and in particular, proposes a new strategy to explore phosphors excited by blue light for white LEDs.
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