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锗酸盐晶体是一类重要的功能晶体材料。其中,Bi4Ge3O12(BGO)是一种优良的闪烁 晶体,广泛应用于高能物理、地质勘察和医疗成像等领域;Sr3Ga2Ge4O14(SGG)是重要的压电 晶体,作为基片材料可以制作高性能的声表面波(SAW)器件,在移动通讯、高温探测等方面有 良好的应用前景;Pb5Ge3O11(PGO)晶体具有小的介点常数和比较大的热释电系数,被认为是 优秀的热释电探测器材料,而其旋光性则可应用于信息存储和信号处理等过程;Sr3Ga2Ge4O14 (Nd:SGG)晶体是高峰值、短脉冲和高频率固态激光器用潜在的激光晶体材料;Bi12GeO20 (BGO)是一种有前途的多功能晶体材料,在光折变、电光、压电等方面都有着重要的应用; Bi4GexSi1-xO12混晶的生长有望获得成本低、性能好的无机闪烁晶体。作者采用改进型坩埚下 降法生长技术成功生长了闪烁晶体BGO、铁电晶体PGO、压电晶体SGG、光折变晶体BGO、 激光晶体Nd:SGG、闪烁体BGSO混晶等多种锗酸盐功能晶体。
Germinate crystals are a class of important functional crystalline materials. Among them, Bi4Ge3O12 (BGO) is an excellent scintillation crystal and is widely used in high-energy physics, geological prospecting and medical imaging. Sr3Ga2Ge4O14 (SGG) is an important piezoelectric crystal and can be used as a substrate material to produce high-performance acoustic surfaces (SAW) devices have good application prospect in mobile communication and high temperature detection. The Pb5Ge3O11 (PGO) crystal has a small dielectric constant and a large pyroelectric coefficient and is considered as an excellent pyroelectric detector Material, and its optical activity can be applied to information storage and signal processing; Sr3Ga2Ge4O14 (Nd: SGG) crystal is a potential laser crystal material for high peak, short pulse and high frequency solid state lasers; Bi12GeO20 (BGO) Promising multi-functional crystal materials have important applications in photorefractive, electro-optic, piezoelectric and so on. The growth of Bi4GexSi1-xO12 mixed crystals is expected to obtain inorganic scintillation crystals with low cost and good performance. The authors successfully developed a variety of germanate functions such as scintillation crystal BGO, ferroelectric crystal PGO, piezoelectric crystal SGG, photorefractive crystal BGO, laser crystal Nd: SGG, scintillator BGSO mixed crystal by the improved crucible drop method Crystal.