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| 1 | Growth and property enhancement of Er^(3+)-doped 0.68Pb(Mg_(1/3)Nb_(2/3))O_3-0.32PbTiO_3 single crystal显示文摘Er^(3+)-modified 0.68 Pb(Mg_(1/3)Nb_(2/3))O_3-0.32 PbTiO_3(PMN-32 PT) single crystals were grown by using the flux method. The growth mechanism of the crystal and influences of Er^(3+) ions on phase structure,electrical and optical properties were investigated. Results reveal that the crystals are still pure perovskite structure with Er3+ ions doping, but lattice enlarges slightly. The coercive electric field is increased from 4.83 to 6.37 kV/cm for [100]-oriented crystals comparing to undoped PMN-32 PT single crystals.Moreover, the crystal exhibits upconversion emission properties. Green(531 and 552 nm) and red(670 nm) emission bands are recorded under the excitation of 980 nm diode laser, which correspond to the ~2 H_(11/2)→~4 I_(15/2), ~4 S_(3/2)→~4 I_(15/2) and ~4 F_(9/2)→~4 I_(15/2) transitions of Er^(3+) ions. Our results show the feasibility of using this crystal in photoelectric multifunctional devices. | Wei Long Xing Chu Zengzhe Xi Pinyang Fang Xiaojuan Li Wenwu Cao | 2018 | Journal of Rare Earths2018,36,8: | 2 |
| 2 | Synthesis of antiferroelectric (Bi_(0.534)Na_(0.5))_(0.94)Ba_(0.06)TiO_3 ceramics with high phase transition temperature and broad temperature range by a solid-state reaction method显示文摘Antiferroelectric 0.94(Bi 0.534 Na 0.5 )TiO 3 -0.06BaTiO 3 ceramics were prepared using a solid-state reaction method, involving the addition of excessive amounts of Bi2O3 . The resulting ceramics featured a very high phase transition temperature (Tm~330°C), from the antiferroelectric to the paraelectric phase, and a low depolarization temperature (Td<25°C). The broad temperature range, within which antiferroelectric properties are retained, of the prepared materials indicates their higher potential over lead-based antiferroelectric ceramics such as PZT-based materials that exhibit a lower T m ≤170°C. The lower Td and higher T m obtained val- ues, relative to those reported in the literature, are believed to be due to the formation of A-site vacancies originating from the incorporation of excess Bi into the perovskite structure of the studied sample. In addition, the synthesized sample shows a high dielectric constant of ~1460, in a temperature range of 50-150°C at 1 kHz, and a high energy storage density of 0.71 J/cm 3 , which is an asset in energy storage capacitor applications. | LI XiaoJuan XI ZengZhe LONG Wei FANG PinYang | 2013 | Chinese Science Bulletin2013,58,23: | 2 |
| 3 | Structure and electrical properties of bismuth and sodium modified SrBi 2 Nb 2 O 9 ferroelectric ceramics显示文摘 | Pinyang Fang Huiqing Fan Zengzhe Xi Weixing Chen Shanchuan Chen Wei Long Xiaojuan Li | 2013 | Journal of Alloys and Compounds2013,,: | 1 |
| 4 | Structure and electrical properties of bismuth and sodium modified SrBi2Nb209 ferroeleetric ceramics显示文摘 | FANG Pinyang FAN Huiqing XI Zengzhe | 2013 | J Alloy Compd2013,550,15: | 1 |
| 5 | High temperature collecting performance of a new all glass evacuated tubular solar air heater with U-shaped tube heat exchanger显示文摘 | Wang Pinyang Guan Hongyan Liu Zhenhua | 2014 | Energy Conversion and Management2014,77,: | 1 |
| 6 | Studies of structural and electrical properties on four-layers Aurivillius phase BaBi 4 Ti 4 O 15显示文摘 | Pinyang Fang Huiqing Fan Zengzhe Xi Weixing Chen | 2012 | Solid State Communications2012,,: | 1 |
| 7 | Synthesis and dielectric properties of the Aurivillius oxide BaBi 4 Ti 4 O 15 by the Pechini method显示文摘 | Pinyang Fang Zengzhe Xi Wei Long Xiaojuan Li Shaojun Qiu | 2014 | Journal of Sol-Gel Science and Technology2014,,: | 1 |
| 8 | DNA Cleavage of the Copper(II) Complexes with a Polyamine Ditopic Ligand显示文摘A new binuclear complex [Cu2L(OH)](ClO4)3·2H2O has been synthesized and characterized, where L=2,6-bis{[bis-(2-aminoethyl)amino]methyl}-benzene. In the presence of 0.5 mmol/L complex at pH 8.10 and 37°C, the complex can efficiently cleavage pBR322 DNA with a rate constant kobs of 1.35×10-4 s-1. The cleavage occurred by a non-oxidative mechanism showing activity to be dependent on pH. | YiBinWEI PinYANG | 2005 | Chinese Chemical Letters2005,16,4: | 0 |
| 9 | Cleavage of DNA by a New Mixed-ligand Cu(Ⅱ) Complex显示文摘Cleavage of DNA pUC19 by [Cu(saldien)(NH3)]Cl2 (here, saldien=bis(salicylicdene)- diethylenetriamine) was investigated at different pHs, times, concentrations, and 37℃. It was found that the copper(Ⅱ) complex could cleave DNA without added coreactants. | QingHuaZHOU PinYANG | 2005 | Chinese Chemical Letters2005,16,1: | 0 |