最新刊期
卷 3 ， 期 4 ， 1982
- 摘要：Eu2+ ion is a very useful activator in luminescent materials or laser materials. Emission spectrum of Eu2+ ion ranges from UV to visible. In this paper, some characteristics of luminescence of Eu2+ ion in solids were reviewed. Preparations cf luminescent materials activated with Eu2+ ion and nature of its luminescence were discussed.152|74|0更新时间：2020-08-11
- 摘要：The crystal symmetry and the influnce of the crystal field terms (odd and even) to the transition of electric dipole of fN configuration, are considered. The new wave function is given. The element matrix expression of electric dipole transition between the energy levels of fN configuration is derived. By using the expression, we disscus and explain the J1=0→J2 =0 transition, and it is compared with Judd result.144|67|0更新时间：2020-08-11
- 摘要：Good DCEL has been observed in thin films cf ZnS:Cu, Nd, Cl prepared by co-evaporation in vacuum. The efficient luminescence centres were found to be trivalent neodymium ions which, by a crystal field analysis, were shown to be located at zinc substitutional sites.112|57|0更新时间：2020-08-11
- 摘要：ZnSe single crystal thin films were grown on GaAs substrates by molecular beam epitaxy (MBE).The MBE growth and characterization of undoped and Ga-doped,low-resistivity ZnSe epilayers are discussed.The lowest resistivity of the Ga-doped ZnSe is 0.073 ohm·cm. Some interesting applications of ZnSe-MBE to such electronic devices as solar cell and EL cell are reported.128|42|0更新时间：2020-08-11
- 摘要：The blue electroluminescence of C-ZnSe:Ga at room temperature is first reported,presented the measurement on the relative properties,and discussed the its luminous mechanism. A strong peak of the electroluminous spectra is at 4800A and a weak peak at 6300A. The self-activated emission at 6300A is reduced with increase of voltage,but the edge emission at 4800A increased. Therefore, the colours vary from red via yellow and green to blue.The bright blue light is observed in the bright room. Finally,the tentative idea of ZnSe varicoloured display is presented.107|51|0更新时间：2020-08-11
- 摘要：In order to detect impurity phase-CaSb2O6, the emission spectrum of calciumhalophosphate changed with different exciting wavelength is developed. Some calciumhalophosphate phosphors with various amount of CaSb2O6 are detected. The forming of CaSb2O6 is discussed by above detection. From experimental data, it is abtained that over-amount of Sb and a firing temperature about, 850℃ are two main factors which influence the forming of CaSb2O6.114|51|0更新时间：2020-08-11
- 摘要：Trivalent terbium activated garnet-type cadium aluminium germanate Cd3Al2Ge3O12:Tb phosphor have been synthesized. The diffused reflecion spectra,excitation spectra and emission spectra for the host lattice and Tb3+-activated phosphor were measured at room temperature. It is observed that the undoped host lattice and Cd3Al2Ge3O12:Tb phosphor exhibit both bright and long phosphorescence after UV-excited light is turned off. Phosphorescence of the host lattice shows blue light, but that of Tb3+-activated phosphor shows the characteristic green-yellow emission of Tb3+ ion. The decay of both phosphorescences agree with B=At-a. The phosphorescence phenomenon is the result of energy transfer from the host lattice to Tb3+ ion.109|47|0更新时间：2020-08-11
- 摘要：The influence of ten rare-earth impurities on the luminescent properties of La2O2S:Tb was investigated. Under the excitation of x-ray, cathod ray and UV light, its brightness is quenched by these rare-earth elements, especially Ce, Pr, Eu and Yb. When the concentration cf rare earth is less than 0.1%, the emission sqectra and colour of La2O2S:Tb do not markedly change except Eu and Pr.127|70|0更新时间：2020-08-11
- 摘要：The relation of particle size distribution between electrolumines-cence phosphor ZnS:Cu and their raw material ZnS have been studied by the method of electron microscope, scanning electron microscope, automatic micro-image analyser and sedimeter.The paper also have been investigated the morphology cf primary particle growth of ZnS:Cu phosphor under firing at 880℃.The two processes have been determined that at first, the particles grow rapidly in primary 2~3 minutes, and then grow slowly.113|90|0更新时间：2020-08-11
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