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Growth of PZN crystals with improved optical quality using the BSFT technique

机译:使用BSFT技术改善光学质量的PZN晶体的生长

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The bottom seeded fluxothermal (BSFT) high temperature solution growth technique was used to grow PZN [Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/] relaxor crystals. This method can separate the perovskite and pyrochlore phases, decrease the spontaneous nucleation and increase the thermodynamic driving force resulting in larger crystals than can be obtained by the conventional slow cooling techniques. The BSFT technique can also improve the quality of the structural and morphological characteristics, which has been demonstrated by visual observation, XRD, Raman, UV-VIS, and IR absorption measurements. These PZN crystals have less distortion in the unit cell, high optical transparency in the 390mn-5700nm range, and improved Pb related stoichiometry.
机译:底部种子丝液(BSFT)高温溶液生长技术用于生长PZN [PB(Zn / Sub 1/3 /亚2/3 /)o / Sub 3 /]弛豫晶体。该方法可以分离钙钛矿和柏纤维相,降低自发成核并增加热力驱动力,从而使得较大的晶体可以通过传统的缓慢冷却技术获得较大的晶体。 BSFT技术还可以提高结构和形态特征的质量,这已通过视觉观察,XRD,拉曼,UV-Vis和IR吸收测量来证明。这些PZN晶体在单元电池中具有较小的畸变,在390mn-5700nm范围内具有高光学透明性,并且改善了PB相关的化学计量。

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