Search Results:　 1-20 of 283

Okamoto Akihiko , Nagata Koichiro , Taguchi Noboru , Iwase Akihiro , Hori Fuminobu

… To synthesize Au nanorods without the use of seed crystals, we applied gamma-ray irradiation from 60Co radioactive source to reduce aqueous solution containing Au ions. …

Jpn J Appl Phys 51(11), 11PH01-11PH01-3, 2012-11-25

The Japan Society of Applied Physics

Imanishi Masayuki , Murakami Kosuke , Imabayashi Hiroki , Takazawa Hideo , Todoroki Yuma , Matsuo Daisuke , Maruyama Mihoko , Imade Mamoru , Yoshimura Masashi , Mori Yusuke

… We have recently shown that dislocation-free GaN crystals could be grown on a GaN point seed by the Na-flux method. … To enlarge the diameter of dislocation-free GaN crystals, we propose here the coalescence of GaN crystals grown from many isolated point seeds. …

Applied Physics Express 5(9), 095501-095501-3, 2012-09-25

The Japan Society of Applied Physics

Masumoto Keiko , Someno Tatsuya , Murakami Kosuke , Imabayashi Hiroki , Takazawa Hideo , Todoroki Yuma , Matsuo Daisuke , Kitamoto Akira , Maruyama Mihoko , Imade Mamoru , Yoshimura Masashi , Kitaoka Yasuo , Sasaki Takatomo , Mori Yusuke

… Here, we grew a-plane GaN crystals using the Na flux method and investigated the effects of a Ba-additive on surface morphology and crystallinity. … We found that the crystallinity of the crystals grown by the Na flux method was greatly improved compared with that of seed substrates. … As a result, a-plane GaN crystals with high crystallinity were produced using the Na flux method with the Ba-additive. …

Jpn J Appl Phys 51(4), 040203-040203-3, 2012-04-25

The Japan Society of Applied Physics

Konishi Yusuke , Masumoto Keiko , Murakami Kosuke , Imabayashi Hiroki , Takazawa Hideo , Todoroki Yuma , Matsuo Daisuke , Maruyama Mihoko , Imade Mamoru , Yoshimura Masashi , Sasaki Takatomo , Mori Yusuke

… The addition of Ca--Li to Na flux was attempted in order to control the growth habit and further improve transparency of GaN crystals. … Furthermore, we succeeded in growing prismatic GaN crystals with high transparency by adding appropriate amounts of Ca and Li to the flux. … This result suggests that the addition of Ca--Li to Na flux is a promising method of growing transparent GaN single crystals. …

Applied Physics Express 5(2), 025503-025503-3, 2012-02-25

The Japan Society of Applied Physics References (17)

Xing Zhongyuan , Igarashi Koichi , Morioka Ayumi , Ooshima Hiroshi

… The batch cooling crystallization of an organic compound, p-acetanisidide, was carried out using methanol as a solvent and no seed crystal. … The crystallization needed an induction period of 10–200 min before nucleation, and the size distribution of the product crystals was broad with sizes ranging from 10 to 270 µm determined as the diameter of a circle with equal projection area. …

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 45(10), 811-815, 2012

J-STAGE CrossRef

KIOKA Masatoshi , MURATA Kengo , KEZUKA Hiroshi , MASHIMO Shigeru , OMURZAK Emilu , ENDO Kazuhiro , ITOU Mineo , KAMEYA Takaki , ARISAWA Syunichi

電気学会研究会資料. PHS, フィジカルセンサ研究会 2011(32), 13-15, 2011-12-12

References (14)

Arivanandhan M. , Saito Y. , Koyama T. , Momose Y. , Ikeda H. , Tanaka A. , Tatsuoka T. , Aswal D.K. , Inatomi Y. , Hayakawa Yasuhiro

… Compositionally homogeneous Si0.52Ge0.48 bulk crystals were grown under a mild temperature gradient using a Si(seed)/Ge/Si(feed) sandwich structure for thermoelectric (TE) applications. … The temperature gradient of 0.4 degrees C/mm resulted in homogeneous Si0.52Ge0.48 bulk crystals of 22 mm length with a Ge compositional fluctuation of about 0.0023/mm. … The compositions of the grown crystals were determined by means of Electron Probe Micro-Analysis (EPMA). …

Journal of Crystal Growth 318(1), 324-327, 2011-03-01

IR CrossRef