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Synthesis of KTiOPO 4 (KTP) Thin Films Using Metallo‐organics
Author(s) -
Hirano ShinIchi,
Yogo Toshinobu,
Kikuta KoIchi,
Noda KenIchi,
Ichida Masao,
Nakamura Arao
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb09069.x
Subject(s) - materials science , crystallite , refractive index , thin film , absorption edge , potassium titanyl phosphate , sol gel , second harmonic generation , homogeneous , absorption (acoustics) , optics , analytical chemistry (journal) , optoelectronics , composite material , chemistry , nanotechnology , organic chemistry , laser , metallurgy , physics , band gap , thermodynamics
Crack‐free and highly transparent KTiOPO 4 (KTP) thin films were synthesized by the sol‐gel method using a homogeneous precursor solution prepared from (“BuO) 2 ‐P(O)(OH), Ti(OEt) 4 , and KOEt in EtOH. Precipitated powders from the solution crystallized directly to KTP above 550°C. Polycrystalline KTP thin films were obtained at 600°C on various substrates. On NdAlO 3 (100) substrates, KTP films with (101) and (240) preferred orientations were formed at 600°C. KTP films on glass substrates showed a refractive index of 1.75 and an absorption edge of 350 nm. KTP films exhibited the second harmonic generation of the 532 nm light on irradiaton with 1064 nm light.