Abstract
We study the DC conductivity in potassium titanyl phosphate (KTiOPO4, KTP) and its isomorphs KTiOAsO4 (KTA) and Rb1%K99%TiOPO4 (RKTP) and introduce a method by which to reduce the overall ionic conductivity in KTP by a potassium nitrate treatment. Furthermore, we create so-called gray tracking in KTP and investigate the ionic conductivity in theses areas. A local unintended reduction of the ionic conductivity is observed in the gray-tracked regions, which also induce additional optical absorption in the material. We show that a thermal treatment in an oxygen-rich atmosphere removes the gray tracking and brings the ionic conductivity as well as the optical transmission back to the original level. These studies can help to choose the best material and treatment for specific applications.
Funder
Deutsche Forschungsgemeinschaft
Subject
Inorganic Chemistry,Condensed Matter Physics,General Materials Science,General Chemical Engineering
Reference33 articles.
1. Recherches sur les phosphate double de titane, d’étain et de cuivre;Ouvrard;Comptes Rendus,1890
2. Study of the monophosphates of type M1TiOpO4 where M1 = K, Rb and Tl;Masse;Bull. Soc. Fr. Minéral. Cristallogr.,1971
3. Growth of Pure and Mo Doped Potassium Titanyl Phosphate (KTP) Crystals: Influence of KTP/Flux Ratios on the Growth Morphology;Gandhi;J. Miner. Mater. Charact. Eng.,2011
4. Viscosity and density of solutions used in high-temperature solution growth of KTiOPO4 (KTP)
5. Reduction of the ionic conductivity of flux grown KTiOPO 4 crystals
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献