國立臺灣大學-技術交易網

製備化學計量比為1：1之鈮酸鋰及鉭酸鋰單晶的方法及裝置

刊登日期：2014/05/21

‧ 專利名稱	製備等化學計量比之鈮酸鋰及鉭酸鋰單晶的方法及裝置
‧ 專利證書號	I236455 US6,916,371 B2 US6,926,771 B2
‧ 專利權人	國立臺灣大學
‧ 專利國家 (申請日)	中華民國 (2002/02/27) 美國 (2002/08/27) 美國 (2003/08/05)

‧ 發明人/PI	藍崇文,
‧ 單位	化學工程學系
‧ 簡歷/Experience

技術摘要 / Our Technology：

一種製備等化學計量比之鈮酸鋰及鉭酸鋰單晶的方法及裝置，係由連續性的區熔式提拉法，配合選用適當熔區之組成及包含隔離物件之長型坩堝，而固體進料可事先藉由分批凝固或燒結的方式來得到等化學計量比之固體，即可生產出鋰/鈮或鋰/鉭化學計量比極為接近壹的鈮酸鋰及鉭酸鋰單晶，而由於區熔的特性，軸向及徑向之化學計量也可達到良好的控制。
A method for growing stoichiometric lithium niobate and lithium tantalate single crystals is provided. A crystal growing apparatus that includes a long crucible with a separation member therein is used. A solid feed material is quenched from a molten state, solidified in batches or sintered before charged in the long crucible to obtain substantially stoichiometric solids. The separation member divides the long crucible into a melting zone and a feeding zone located under the melting zone, and it could effectively prevent bubble formation in the growing crystal. The stoichiometry of the axial and radial composition can be well controlled, and the control of the diameter of the crystal body is easily achieved as well.

聯繫方式 / Contact：

臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU

Email：ordiac@ntu.edu.tw	電話/Tel：02-3366-9945

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