Basic ammonothermal growth of Gallium Nitride – State of the art, challenges, perspectives
Publication date: Available online 2 June 2018Source: Progress in Crystal Growth and Characterization of MaterialsAuthor(s): M. Zajac, R. Kucharski, K. Grabianska, A. Gwardys-Bak, A. Puchalski, D. Wasik, E. Litwin-Staszewska, R. Piotrzkowski, J. Z Domagala, M. BockowskiAbstractRecent progress in ammonothermal technology of bulk GaN growth in basic environment is presented and discussed in this paper. This method enables growth of two-inch in diameter crystals of outstanding structural properties, with radius of curvature above tens of meters and low threading dislocation density of the order of 5 × 104 cm−2. Crystals with different types of conductivity, n-type with free electron concentration up to 1019 cm−3, p-type with free hole concentration of 1016 cm−3, and semi-insulating with resistivity exceeding 1011 Ω cm, can be obtained. Ammonothermal GaN of various electrical properties is described in terms of point defects present in the material. Potential applications of high-quality GaN substrates are also briefly shown.
Publication date: June 2020Source: Journal of Functional Foods, Volume 69Author(s): Linlin Wang, Shi Cen, Gang Wang, Yuan-kun Lee, Jianxin Zhao, Hao Zhang, Wei Chen
Publication date: June 2020Source: Journal of Functional Foods, Volume 69Author(s): Mingsi Xie, Jie Liu, Ziyuan Wang, Baoguo Sun, Jing Wang
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