Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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A study on the growth and properties of KTP single crystals

$KTP(KTiOPO_4)$단결정 육성 및 물성 연구

  • Lee, M.J. (Dept. of Inorganic Materials Engineering, Hanyang Univ.) ;
  • Cha, Y.W. (Dept. of Inorganic Materials Engineering, Hanyang Univ.) ;
  • Jang, J.Y. (Dept. of Inorganic Materials Engineering, Dongshin Univ.) ;
  • Orr, K.K. (Dept. of Inorganic Materials Engineering, Hanyang Univ.) ;
  • Kim, P.C. (Dept. of Inorganic Materials Engineering, Dongshin Univ.)
  • 이명준 (한양대학교 무기재료공학과) ;
  • 차용원 (한양대학교 무기재료공학과) ;
  • 장지연 (동신대학교 무기재료공학과) ;
  • 오근호 (한양대학교 무기재료공학과) ;
  • 김판채 (동신대학교 무기재료공학과)
  • Published : 1994.03.01
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Abstract

KTP seed crystals were grown by the hydrothermal method and the properties of grown crystals were investigated by means of infrared spectrophotometer. The hydrothermal conditions for high growth rates of seed crystals are as follows: temperature ranges, between , $430 and 450^{\circ}C $ ; hydrothermal solvent, 4m KF solution ; temperatures difference, $30<{\triangle}T<65^{\circ}C$ ; filling %, 65% ; growth method, vertical temperature gradient method. Under these conditions, morphologies of the grown KTP single crystals tended to be bounded by (100), (011) and (201) faces and hydroxyl groups were observed in the grown crystals.

KTP 종자결정의 육성을 수열법에 의해 행하였으며, 육성결정의 물성은 적외분광 광도계를 이용하여 조사하였다.종자결정의 육성에 있어 큰 성장속도를 나타내는 수열 조건은 다음과 같다. 즉, 온도범위,$430~450^{\circ}C $ ; 수열용매, 4몰 KF용액 ; 온도차, $30<{\triangle}T<65^{\circ}C$ ; 충진율%, 65% ; 육성방법, 수직온도 구배법. 이와 같은조건하에서 얻어진 KTP단 결정의 형태는(100), (011), (201)면이 잘 발달하는 경향이 있었으며 그리고 육성결정 중에는hydroxyl group이 존재하였다.

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