中国科学院机构知识库网格系统: 检索

Electrically tunable dual-wavelength organic laser based on holographic polymer dispersed liquid crystal grating 期刊论文 OAI收割
Organic Electronics, 2019, 卷号: 74, 页码: 161-165
作者: L.J.Liu; X.B.Kong; Y.Q.Liu; L.Sun; L.Xuan

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收藏 | 浏览/下载：29/0 | 提交时间：2020/08/24

Dual-wavelength laser,Electrically tunable,Low threshold,Holographic,polymer dispersed liquid,crystal grating,emission,nm,Materials Science,Physics

Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism 期刊论文 OAI收割
Nanoscale Research Letters, 2018, 卷号: 13, 页码: 9
作者: Li, F.; Li, J.; Chen, L.; Huang, Y. X.; Peng, Y. R.

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收藏 | 浏览/下载：16/0 | 提交时间：2019/09/17

Sc2O3 Hydrothermal synthesis Upconversion Energy transfer Er3+ Yb3+ power dependence luminescence ions lanthanide emission nm Science & Technology - Other Topics Materials Science Physics

OSCILLATOR STRENGTH MEASUREMENT FOR THE A(0-6)-X(0), C(0)-X(0), AND E(0)-X(0) TRANSITIONS OF CO BY THE DIPOLE (gamma, gamma) METHOD 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2015, 卷号: 807, 期号: 1, 页码: —
作者: Kang, X; Liu, YW; Xu, LQ; Ni, DD; Yang, K

收藏 | 浏览/下载：210/0 | 提交时间：2016/03/04

EXTREME-ULTRAVIOLET EMISSION POTENTIAL-ENERGY CURVES CARBON-MONOXIDE HIGH-RESOLUTION ELECTRON-IMPACT CROSS-SECTIONS VIBRATIONAL BANDS INTERSTELLAR CO VIBRONIC BANDS 115 NM

SnS nanostructures prepared by simple film technique: Catalyst-free vacuum thermal evaporation 期刊论文 OAI收割
Micro and Nano Letters, 2014, 卷号: 9, 期号: 1, 页码: 34-36
作者: Li, Jin; Wang, Shengfeng; Jian, Jikang; Sun, Yanfei; Xu, Jinbao

收藏 | 浏览/下载：30/0 | 提交时间：2014/11/11

nanostructured materials photoluminescence scanning electron microscopy tin compounds transmission electron microscopy vacuum deposition X-ray diffraction tin chips starting materials scanning electron microscopy transmission electron microscopy high-resolution TEM as-prepared products X-ray diffraction orthorhombic phase photoluminescence spectra emission bandcentres visible light emitter infrared light emitter optical devices nanostructures simple film technique catalyst-free vacuum thermal evaporation wavelength 555 4 nm electron volt energy 2 24 eV electron volt energy 1 58 eV wavelength 785 nm SnS

Luminescence and energy transfer in Ca3Sc2Si 3O12:Ce3+,Mn2+ white LED phosphors (EI CONFERENCE) 会议论文 OAI收割
作者: Luo Y.; Zhang J.; Zhang J.; Zhang J.; Wang X.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

Expanded emission spectra ranging from green to red are reported in Ca 3Sc2Si3O12 (CSS):Ce 3+ Mn2+ silicate garnets. Mn2+ may occupy Ca2 site (Mn2+(I)) to generate a yellow emission band at 574 nm or Sc3 site (Mn2+(II)) with red emission band at 680 nm. Efficient energy transfers from the green emitting Ce3+ to both Mn2+(I) and Mn2+(II) occur upon blue excitation into Ce3+. Concentration dependence of Mn2+ emission is analyzed based on Ce3+-Mn2+ energy transfer steady state rate equations and fluorescence lifetimes. Energy transfer efficiency (nT) and rate (W) are calculated with values as high as 45% and 14.01106 s-1 respectively. 2011 Elsevier B.V.

Synthesis, characterization, and luminescent properties of a red-emitting Europium complex (EI CONFERENCE) 会议论文 OAI收割
1st International Conference on Energy and Environmental Protection, ICEEP 2012, June 23, 2012 - June 24, 2012, Hohhot, China
作者: Li B.; Zhang L.; Zhang L.; Li B.; Li B.

收藏 | 浏览/下载：78/0 | 提交时间：2013/03/25

a fluorine functionalized 1 10-phenanthroline ligand 3-ethyl-2-(2- fluorophenyl) imidazo[4 5-f]1 10-phenanthroline(EFPIP) and the corresponding red-emitting Eu(III) complex Eu(DBM)3(EFPIP) (DBM = dibenzoylmethanate) was synthesized and the photophysical properties and electroluminescent(EL) performances were researched. When Eu(DBM) 3(EFPIP) was used as emitting material in organic devices the maximum efficiency and luminance of red emission achieved from the EL device with the configuration of ITO/m-MTDATA (30 nm)/NPB (20 nm)/x wt% Eu(DBM) 3(EFPIP) doped in CBP (30 nm)/Bphen (20 nm)/Alq3 (20 nm)/LiF (0.8 nm)/Al were 3.6 cd/A and 563 cd/m2 respectively. Compared with the previously reported devices based on methyl or chlorine substitute Eu(III) complexes the EL performances of the device using Eu(DBM)3(EFPIP) as an emitter was significantly enhanced due to the introduction of fluorine. (2012) Trans Tech Publications Switzerland.

Potential sodium D(2) resonance radiation generated by intra-cavity SHG of a c-cut Nd:YVO(4) self-Raman laser 期刊论文 OAI收割
Optics Express, 2011, 卷号: 19, 期号: 7, 页码: 6341-6346
Y. M. Duan; H. Y. Zhu; C. H. Huang; G. Zhang; Y. Wei

收藏 | 浏览/下载：26/0 | 提交时间：2012/06/06

sum-frequency generation w output power continuous-wave wavelength-versatile high-efficiency yellow-light nm light emission ndgdvo4

Energy transfer in Y3Al5O12:Ce 3, Pr3+ and CaMoO4:Sm3, Eu 3 phosphors (EI CONFERENCE) 会议论文 OAI收割
作者: Wang L.; Wang X.-J.; Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

Non-radiative energy transfers (ET) from Ce3 to Pr3+ in Y3Al5O12:Ce3 Pr3+ and from Sm3 to Eu3 in CaMoO4:Sm3 Eu3 are studied based on photoluminescence spectroscopy and fluorescence decay patterns. The result indicates an electric dipoledipole interaction that governs ET in the LED phosphors. For Ce3 concentration of 0.01 in YAG:Ce3 Pr3+ the rate constant and critical distance are evaluated to be 4.510-36 cm 6 s-1 and 0.81 nm respectively. An increase in the red emission line of Pr3+ relative to the yellow emission band of Ce 3 on increasing Ce3 concentration is observed. This behavior is attributed to the increase of spectral overlap integrals between Ce3 emission and Pr3+ excitation due to the fact that the yellow band shifts to the red spectral side with increasing Ce3 concentration. In CaMoO4:Sm3 Eu3 Sm 3Eu3 transfer occurs from 4G5/2 of Sm3 to 5D0 of Eu3. The rate constant of 8.510-40 cm6 s-1 and the critical transfer distance of 0.89 nm are evaluated. 2010 Elsevier B.V. All rights reserved.

Synthesis and luminescence properties of Eu3+-doped silicate nanomaterial (EI CONFERENCE) 会议论文 OAI收割
17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states
作者: Zhang J.; Zhang J.; Zhang J.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

In this paper we introduce a sol-gel process for preparing Y 2Si2O7: Eu3+ nanocrystals. The rare earth compounds were dispersed in the SiO2 colloids and the monodisperse nano-scale composite materials were prepared. The reactant mass fraction and heat treatment temperatures could affect the structures and emission spectrum properties of as-synthesized samples. The samples emit the strong red light upon excitation under the ultraviolet. The main peaks originate from 5D0-7F2 electric dipole transition of Eu3+. With regard to the samples treated at different temperatures the emission spectra obtained under 266 nm excitation show different shapes of spectra lines and relative intensities indicating that the Eu3+ ions have been located in different local environments. 2011 Published by Elsevier B.V.

Energy transition between Yb3+-Tm3+-Gd3+ in Gd3+, Yb3+ and Tm3+ Co-doped fluoride nanocrystals (EI CONFERENCE) 会议论文 OAI收割
17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states
作者: Zhang J.; Zhang J.; Zhang J.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

YF3: 20%Gd3+ 20%Yb3+ 0.5%Tm3+ nanocrystal has been synthesized by a hydrothermal method. The upconversion (UC) emission and energy transfer progresses between Gd3+-Yb 3+-Tm3+ under a 980-nm continuous wave semiconductor laser diode excitation have been explored. The experimental results show that the violet and ultraviolet (UV) enhancement with Tm3+ upconversion emission occurs in the nanocrystal and in the same time the UC emissions of Gd3+ from 6D9/2 6IJ 6P5/2 and 6P7/2 states to the ground state 8S7/2 are obtained too. The dynamic analysis implies that under 980-nm excitation the nanocrystal dimension plays a key role in the efficient energy transfer processes between Gd3+-Yb 3+-Tm3tt based on the energy matching conditions. 2011 Published by Elsevier B.V.