Zobrazeno 1 - 10 of 23 pro vyhledávání: '"Shigefusa Chichibu"'
1
Akademický článek
Numerical Simulation of Ammonothermal Crystal Growth of GaN—Current State, Challenges, and Prospects
Autor: Saskia Schimmel, Daisuke Tomida, Tohru Ishiguro, Yoshio Honda, Shigefusa Chichibu, Hiroshi Amano
Publikováno v: Crystals, Vol 11, Iss 4, p 356 (2021)
Numerical simulations are a valuable tool for the design and optimization of crystal growth processes because experimental investigations are expensive and access to internal parameters is limited. These technical limitations are particularly large f
Externí odkaz: https://doaj.org/article/d0d0e2cd6b3343a59697c4f36d0bd4ea
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2
Akademický článek
Boundary Conditions for Simulations of Fluid Flow and Temperature Field during Ammonothermal Crystal Growth—A Machine-Learning Assisted Study of Autoclave Wall Temperature Distribution
Autor: Saskia Schimmel, Daisuke Tomida, Makoto Saito, Quanxi Bao, Toru Ishiguro, Yoshio Honda, Shigefusa Chichibu, Hiroshi Amano
Publikováno v: Crystals, Vol 11, Iss 3, p 254 (2021)
Thermal boundary conditions for numerical simulations of ammonothermal GaN crystal growth are investigated. A global heat transfer model that includes the furnace and its surroundings is presented, in which fluid flow and thermal field are treated as
Externí odkaz: https://doaj.org/article/decdc90eb27249f7b26e33bca4de74a7
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5
(Invited) Characterization of Semiconductor Crystals Based on Omnidirectional Photoluminescence (ODPL) Spectroscopy
Autor: Kazunobu Kojima, Shuhei Ichikawa, Osamu Maida, Kohei Shima, Shigefusa Chichibu
Publikováno v: ECS Meeting Abstracts. :1301-1301
The performance of optical devices based on nitride semiconductors operating in the ultraviolet and visible wavelength regimes has been remarkably improved. For example, high-efficiency blue InGaN light-emitting diodes (LEDs) with an external quantum
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba84c25e812eaeb41e04b31b92cf7fe1
https://doi.org/10.1149/ma2022-01311301mtgabs
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