Plasmon‐enhanced photoluminescence from TiO<sub>2</sub>:Sm<sup>3+</sup>:Au nanostructure

An, Guofei; Yang, Chuan; Zhou, Yangen; Zhao, Xiaopeng

doi:10.1002/pssa.201228290

Cited by 15 publications

(5 citation statements)

References 30 publications

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“…6 H 11/2 , respectively. [35] The inset of Figure 6b shows the intensities of peaks centered at 601 nm with different Sm 3þ concentrations. With the increase of Sm 3þ concentration, the intensity of main emission obtained maximum level at the x ¼ 10 mol%.…”

Section: Luminescent Propertiesmentioning

confidence: 99%

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method

Cao

Feng

Chen

et al. 2022

Physica Status Solidi (a)

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Recently, photochromic ceramics with luminescence modulation behavior gradually developed into a hot point in inorganic materials, and the coupling between photochromic and luminescent properties will enhance the readout rate of information and convenience. [1,2] Mainstream photochromic systems include (K 0.5 Na 0.5 )NbO 3 (KNN), [3] Na 0.5 Bi 2.5 Nb 2 O 9 (NBN), [4] Na 0.5 Bi 0.5 TiO 3 (NBT), [5] SrSnO 4 (SS), [6] BaMgSiO 4 (BMS), [7] PbWO 4 (PWO), [8] and their compounds. [9,10] Due to the stable and excellent luminescence properties of rare-earth ions dopants, [11][12][13] most of the inorganic photochromic compounds relied on the introduction of rare-earth activator to obtain luminescence properties, and realized the luminescence modulation by the resonance energy transfer from luminescent center to photochromic center. [3][4][5][6][7][8][9] KSr 2 Nb 5 O 15 (KSN) lead-free ferroelectric materials exhibit excellent multifunctional features, including dielectric, ferroelectric, thermoelectric, electro-optic, photocatalytic, and photoluminescent, photochromic areas. [14][15][16][17] Due to the typically tetragonal tungsten bronze (TTB) structure, doping modification of KSN can be flexibly executed, and there are abundant sites available for occupying with alkali, alkali-earth, and rare-earth cations. [18] The photochromic effects of KSN ceramics were reported in our previous work in 2019. [17] The absorbance (and reflectivity) of KSN ceramics could be reversibly changed by alternating the light irradiation (395 nm) and thermal treatment, which exhibit various potential applications in optical information storage and recording, optical antifake, and sensors. [7,19,20] For tungsten bronze type host, the luminescent properties of Eu 3þ -doped NaSr 2 Nb 5 O 15 , [21] Dy 3þ -doped KBa 2 Nb 5 O 15 , [22] and RE 3þ (RE ¼ La, Pr, Nd)-doped KSr 2 Nb 5 O 15 [16] have been reported, and these systems exhibited the predominance in the charge transfer transition between rare-earth activator and hosts, and good luminescent emission properties. Moreover, compared with other systems, the KSN-based materials possess the TTB type structure and significant anisotropy on the optical properties, including photochromic, luminescent, and luminescence modulation properties. [23] Based on these features, the KSNbased textured ceramics with obvious grain orientation have

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Section: Luminescent Propertiesmentioning

confidence: 99%

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method

Cao

Feng

Chen

et al. 2022

Physica Status Solidi (a)

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“…In the XRD pattern of neat nanofibres, two equatorial peaks at 2 values of 17.1 ∘ and 29.1 ∘ were observed. These peaks disappeared upon carbonization and after oxidation as these peaks could not appear in the XRD patterns of the CNF/TiO [35]. The major TiO 2 phase was the rutile phase because of the heat treatment up to 600 ∘ C during the carbonization stage that transformed the anatase to rutile phase.…”

Section: Raman Analysismentioning

confidence: 99%

Preparation of Titanium Dioxide Nanoparticles Immobilized on Polyacrylonitrile Nanofibres for the Photodegradation of Methyl Orange

Nyamukamba

Okoh

Tichagwa

et al. 2016

International Journal of Photoenergy

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Herein, we describe the synthesis of titanium dioxide (TiO2) nanoparticles by the hydrolysis and condensation of titanium tetrachloride. The resulting nanoparticles were immobilized on polyacrylonitrile (PAN) based nanofibres by an electrospinning technique in order to allow simple isolation and reuse of titania semiconductor photocatalyst. The composite nanofibres were heat treated to convert the polymer nanofibres to carbon nanofibres and to convert amorphous TiO2to crystalline TiO2. X-ray diffraction (XRD) analysis showed that the rutile phase was the major phase and the equatorial peaks of PAN disappeared after heat treatment at 600°C. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) analysis confirmed that some TiO2nanoparticles were encapsulated whereas some were surface residing on the electrospun nanofibres. The TiO2nanoparticles were found to lower the cyclization temperature of PAN as indicated by differential scanning colorimetry (DSC) and differential thermal analysis (DTA). Photocatalytic studies on the degradation of methyl orange dye under UV light irradiation showed that composite nanofibres were capable of degrading organic contaminants in water. The carbon nanofibres with surface residing titanium dioxide nanoparticles (TiO2/CNF-SR) showed the highest photocatalytic activity (59.35% after 210 minutes) due to direct contact between the TiO2photocatalyst and methyl orange.

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“…Fujii等人 [27] 研究了Au纳米壳修饰的NaYF 4 : Yb 3+ , Er 3+ 纳米颗粒内稀土离子荧光辐射量子效率提高的可行性. Deng等人 [28] [29] . 尽管 Drexhag在1977年就在贵金属表面观察到了有机分子的荧光增强, Nie等人 [30] 和Kneipp等人 [31] [32]…”

Section: 很多C-s结构的构建不仅可以有效抑制能量损unclassified

Controlling on the luminescence property of RE ionic and molecular optical centers with nanostructure system

Zheng

Dong

et al. 2015

Chin. Sci. Bull.

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Controlling the solid-state luminescence of gold(I) N-heterocyclic carbene complexes through changes in the structure of molecular aggregates SCIENCE CHINA Chemistry 61, 957 (2018); Optical heterodyne detected velocity modulation molecular ionic spectroscopy Chinese Science Bulletin 49, 2354 (2004); A luminescence enhancement approach through Si/O nanostructure Science in China Series E-Technological Sciences 52, 1171 (2009); A luminescence molecular switch via modulation of PET and ICT processes in DCM system

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Plasmon‐enhanced photoluminescence from TiO₂:Sm³⁺:Au nanostructure

Cited by 15 publications

References 30 publications

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method

Preparation of Titanium Dioxide Nanoparticles Immobilized on Polyacrylonitrile Nanofibres for the Photodegradation of Methyl Orange

Controlling on the luminescence property of RE ionic and molecular optical centers with nanostructure system

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Plasmon‐enhanced photoluminescence from TiO2:Sm3+:Au nanostructure

Cited by 15 publications

References 30 publications

Microstructures and Luminescent Properties of Sm3+‐Doped KSr2Nb5O15 Prepared by Molten Salt Synthesis Method

Microstructures and Luminescent Properties of Sm3+‐Doped KSr2Nb5O15 Prepared by Molten Salt Synthesis Method

Preparation of Titanium Dioxide Nanoparticles Immobilized on Polyacrylonitrile Nanofibres for the Photodegradation of Methyl Orange

Controlling on the luminescence property of RE ionic and molecular optical centers with nanostructure system

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Plasmon‐enhanced photoluminescence from TiO₂:Sm³⁺:Au nanostructure

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method

Microstructures and Luminescent Properties of Sm³⁺‐Doped KSr₂Nb₅O₁₅ Prepared by Molten Salt Synthesis Method