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1

Impurities removal process for high-purity silica production from diatomite

Abdellaoui, Imane, Islam, Muhammad Monirul, Sakurai, Takeaki, Hamzaoui, Saad, Akimoto, Katsuhiro

Journal:

Hydrometallurgy

Year:

2018

Language:

english

File:

PDF, 1.37 MB

english, 2018

2

Epitaxial growth of ZnMgSSe on GaAs substrate by molecular beam epitaxy

Hiroyuki Okuyama, Kazushi Nakano, Takao Miyajima, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1992

Language:

english

File:

PDF, 406 KB

english, 1992

3

Photoluminescence spectra of oxygen-doped ZnSe grown by molecular-beam epitaxy

Akimoto, Katsuhiro, Miyajima, Takao, Mori, Yoshifumi

Journal:

Physical Review B

Year:

1989

Language:

english

File:

PDF, 373 KB

english, 1989

4

As

Akimoto, Katsuhiro, Mori, Yoshifumi, Kojima, Chiaki

Journal:

Physical Review B

Year:

1987

Language:

english

File:

PDF, 231 KB

english, 1987

5

Determination of deep-level defects in Cu2ZnSn(S,Se)4 thin-films using photocapacitance method

Islam, Muhammad Monirul, Halim, Mohammad Abdul, Sakurai, Takeaki, Sakai, Noriyuki, Kato, Takuya, Sugimoto, Hiroki, Tampo, Hitoshi, Shibata, Hajime, Niki, Shigeru, Akimoto, Katsuhiro

Journal:

Applied Physics Letters

Year:

2015

Language:

english

File:

PDF, 983 KB

english, 2015

6

Vacancy behavior in Cu(In1−xGax)Se2 layers grown by a three-stage coevaporation process probed by monoenergetic positron beams

Uedono, Akira, Islam, Muhammad M., Sakurai, Takeaki, Hugenschmidt, Christoph, Egger, Werner, Scheer, Roland, Krause-Rehberg, Reinhard, Akimoto, Katsuhiro

Journal:

Thin Solid Films

Year:

2016

Language:

english

File:

PDF, 1.05 MB

english, 2016

7

Electrodeposition and characterization of silicon films obtained through electrochemical reduction of SiO 2 nanoparticles

Islam, Muhammad Monirul, Abdellaoui, Imane, Moslah, Cherif, Sakurai, Takeaki, Ksibi, Mohamed, Hamzaoui, Saad, Akimoto, Katsuhiro

Journal:

Thin Solid Films

Year:

2018

Language:

english

File:

PDF, 2.27 MB

english, 2018

8

Injection luminescence in oxygen-doped ZnSe grown by molecular beam epitaxy

Katsuhiro Akimoto, Takao Miyajima, Yoshifumi Mori

Journal:

Journal of Crystal Growth

Year:

1990

Language:

english

File:

PDF, 305 KB

english, 1990

9

Polarization of I2 emission in ZnSe epitaxial layers on (100) GaAs

Kazushi Nakano, Hiroyuki Okuyama, Takao Miyajima, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1992

Language:

english

File:

PDF, 394 KB

english, 1992

10

High-temperature blue lasing in photopumped ZnSSe-ZnMgSSe double heterostructures

Hiroyuki Okuyama, Yuko Morinaga, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1993

Language:

english

File:

PDF, 297 KB

english, 1993

11

Extended X-ray absorption fine structure study of heavily Cl doped ZnSe

Katsuhiro Akimoto, Takashi Ogawa, Takahiro Maruyama, Yoshinori Kitajima

Journal:

Journal of Crystal Growth

Year:

1996

Language:

english

File:

PDF, 250 KB

english, 1996

12

Distribution of chalcogen atoms in ZnSSe and ZnMgSSe: an EXAFS study

Takahiro Maruyama, Takashi Ogawa, Katsuhiro Akimoto, Yoshinori Kitajima, Satoshi Itoh, Akira Ishibashi

Journal:

Journal of Crystal Growth

Year:

1996

Language:

english

File:

PDF, 257 KB

english, 1996

13

Control of molecular orientation of organic p–i–n structures by using molecular templating effect at heterointerfaces

Takeaki Sakurai, Ryosuke Fukasawa, Kazuhiro Saito, Katsuhiro Akimoto

Journal:

Organic Electronics

Year:

2007

Language:

english

File:

PDF, 492 KB

english, 2007

14

Interaction of organic semiconductor with low work function metals Ca and K

Bhatt Mahesh Datt, Shugo Suzuki, Katsuhiro Akimoto

Journal:

Physica B: Condensed Matter

Year:

2010

Language:

english

File:

PDF, 316 KB

english, 2010

15

Interaction of bathocuproine with metals (Ca, Mg, Al, Ag, and Au) studied by density functional theory

Mahesh Datt Bhatt, Shugo Suzuki, Takeaki Sakurai, Katsuhiro Akimoto

Journal:

Applied Surface Science

Year:

2010

Language:

english

File:

PDF, 603 KB

english, 2010

16

Electronic states at 4,4′-N,N′-dicarbazol-biphenyl (CBP)–metal (Mg, Ag, and Au) interfaces: A joint experimental and theoretical study

Bhatt Mahesh Datt, Akahasi Baba, Takeaki Sakurai, Katsuhiro Akimoto

Journal:

Current Applied Physics

Year:

2011

Language:

english

File:

PDF, 584 KB

english, 2011

17

Barrier formation at organic-metal interfaces studied by density functional theory

Bhatt Mahesh Datt, Shugo Suzuki, Takeaki Sakurai, Katsuhiro Akimoto

Journal:

Current Applied Physics

Year:

2011

Language:

english

File:

PDF, 423 KB

english, 2011

18

Effects of V/III ratio on photoluminescence spectra of Eu-doped GaN grown by molecular beam epitaxy

Junji Sawahata, Jongwon Seo, Mikio Takiguchi, Daisuke Saito, Shinya Nemoto, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2007

Language:

english

File:

PDF, 233 KB

english, 2007

19

Hydrogen-related defects in InGaP/GaAs heterojunction bipolar transistors

Hisashi Yamada, Noboru Fukuhara, Masahiko Hata, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2008

Language:

english

File:

PDF, 297 KB

english, 2008

20

Incorporation sites and luminescence characterizations of Er-doped GaN grown by molecular beam epitaxy

Shaoqiang Chen, Jongwon Seo, Junji Sawahata, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2009

Language:

english

File:

PDF, 298 KB

english, 2009

21

Relationship between defects and optical properties in Er-doped GaN

Shaoqiang Chen, Akira Uedono, Jongwon Seo, Junji Sawahata, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2009

Language:

english

File:

PDF, 203 KB

english, 2009

22

Structural control of organic solar cells based on nonplanar metallophthalocyanine/C60 heterojunctions using organic buffer layers

Takeaki Sakurai, Tatsuya Ohashi, Hikaru Kitazume, Masato Kubota, Takashi Suemasu, Katsuhiro Akimoto

Journal:

Organic Electronics

Year:

2011

Language:

english

File:

PDF, 624 KB

english, 2011

23

The optical excitation mechanism in ZnS: Sm3+ grown by molecular-beam epitaxy

Masanori Tanaka, Atusi Kurita, Hisashi Yamada, Katsuhiro Akimoto

Journal:

Solid State Communications

Year:

2007

Language:

english

File:

PDF, 368 KB

english, 2007

24

Optical processes of red emission from Eu doped GaN

Junji Sawahata, Hyungjin Bang, Jongwon Seo, Katsuhiro Akimoto

Journal:

Science and Technology of Advanced Materials

Year:

2005

Language:

english

File:

PDF, 157 KB

english, 2005

25

Quenching mechanism of luminescence in Sm-doped ZnS

Takahiro Maruyama, Hisashi Yamada, Takashi Mochizuki, Katsuhiro Akimoto, Eiichi Yagi

Journal:

Journal of Crystal Growth

Year:

2000

Language:

english

File:

PDF, 201 KB

english, 2000

26

Efficient luminescence from Sm-doped ZnSSe/undoped-ZnS multi-quantum wells

Hisashi Yamada, Masanori Tanaka, Takahiro Maruyama, Yasuaki Masumoto, Takafumi Yao, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2000

Language:

english

File:

PDF, 147 KB

english, 2000

27

Substrate roughness dependence of structural and optical properties of Eu-doped GaN grown by gas source molecular beam epitaxy

Zhiqiang Li, Hyungjin Bang, Guanxi Piao, Junji Sawahata, Katsuhiro Akimoto, Hiroyuki Kinoshita, Kenich Watanabe

Journal:

Journal of Crystal Growth

Year:

2002

Language:

english

File:

PDF, 332 KB

english, 2002

28

MBE growth of Eu- or Tb-doped GaN and its optical properties

Hyungjin Bang, Shinichi Morishima, Zhiqiang Li, Katsuhiro Akimoto, Masaharu Nomura, Eiichi Yagi

Journal:

Journal of Crystal Growth

Year:

2002

Language:

english

File:

PDF, 177 KB

english, 2002

29

Growth of Eu-doped GaN by gas source molecular beam epitaxy and its optical properties

Zhiqiang Li, Hyungjin Bang, Guanxi Piao, Junji Sawahata, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2002

Language:

english

File:

PDF, 226 KB

english, 2002

30

Optical and structural properties of GaN films grown on c-plane Al2O3 by electron cyclotron resonance molecular beam epitaxy

Sung Hwan Cho, Kazutaka Hata, Takahiro Maruyama, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1997

Language:

english

File:

PDF, 392 KB

english, 1997

31

Interface structure of GaN on sapphire (0001) studied by transmission electron microscope

Onitsuka, Tsuyoshi, Maruyama, Takahiro, Akimoto, Katsuhiro, Yoshio Bando,

Journal:

Journal of Crystal Growth

Year:

1998

Language:

english

File:

PDF, 199 KB

english, 1998

32

Layered compound substrates for GaN growth

Akiyoshi Yamada, Kok Pin Ho, Takayuki Akaogi, Takahiro Maruyama, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1999

Language:

english

File:

PDF, 199 KB

english, 1999

33

Epitaxial growth of GaN/Pd/GaN sandwich structure

Uitsu Tanaka, Takahiro Maruyama, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

1999

Language:

english

File:

PDF, 292 KB

english, 1999

34

Epitaxial growth of Eu-doped GaN by gas source molecular beam epitaxy

Shinichi Morishima, Takahiro Maruyama, Katsuhiro Akimoto

Journal:

Journal of Crystal Growth

Year:

2000

Language:

english

File:

PDF, 242 KB

english, 2000

35

Energy-level alignment at NTCDA/metal and PTCDA/NTCDA interfaces studied by UPS

Takahiro Maruyama, Akira Hirasawa, Toshinobu Shindow, Katsuhiro Akimoto, Hiroo Kato, Akito Kakizaki

Journal:

Journal of Luminescence

Year:

2000

Language:

english

File:

PDF, 101 KB

english, 2000

36

Extended X-ray absorption fine structure study of defects in Cl doped ZnSe

Takahiro Maruyama, Takashi Ogawa, Katsuhiro Akimoto, Yoshinori Kitajima

Journal:

Solid State Communications

Year:

1997

Language:

english

File:

PDF, 433 KB

english, 1997

37

Eu concentration dependence on structural and optical properties of Eu-doped GaN

Hyungjin Bang, Shinichi Morishima, Takaharu Tsukamoto, Zhiqiang Li, Junji Sawahata, Jongwon Seo, Mikio Takiguchi, Yoshio Bando, Katsuhiro Akimoto

Journal:

physica status solidi (b)

Year:

2004

Language:

english

File:

PDF, 279 KB

english, 2004

38

Low-energy charge-transfer state and optical properties of Eu3+-doped GaN

Masanori Tanaka, Shinichi Morishima, Hyungjin Bang, Jeung Sun Ahn, Takashi Sekiguchi, Katsuhiro Akimoto

Journal:

physica status solidi (c)

Year:

2003

Language:

english

File:

PDF, 96 KB

english, 2003

39

Growth and Characterization of Er-Doped GaN

Hyungjin Bang, Guanxi Piao, Junji Sawahata, Zhiqian Li, Katsuhiro Akimoto, Masaharu Nomura

Journal:

physica status solidi (c)

Year:

2003

Language:

english

File:

PDF, 181 KB

english, 2003

40

Influence of lattice-matching on structural properties of GaInNAs epitaxial films grown on GaAs

Takeaki Sakurai, Naoki Matsumoto, Yoshitaka Okada, Seinosuke Onari, Katsuhiro Akimoto

Journal:

physica status solidi (c)

Year:

2005

Language:

english

File:

PDF, 158 KB

english, 2005

41

Structural and optical properties of Er doped GaN with various Er concentrations

Shaoqiang Chen, Jongwon Seo, Junji Sawahata, Katsuhiro Akimoto

Journal:

physica status solidi (c)

Year:

2008

Language:

english

File:

PDF, 195 KB

english, 2008

42

Preface: phys. stat. sol. (c) 4/7

Guest Editor Katsuhiro Akimoto, Guest Editor Shigefusa Chichibu, Guest Editor Takashi Suemasu

Journal:

physica status solidi (c)

Year:

2007

Language:

english

File:

PDF, 60 KB

english, 2007

43

Electronic structure of wurtzite- and zinc blende-GaN studied by angle-resolved photoemission

Takahiro Maruyama, Yutaka Miyajima, Kazutaka Hata, Sung Hwan Cho, Katsuhiro Akimoto, Hajime Okumura, Sadafumi Yoshida, Hiroo Kato

Journal:

Journal of Electronic Materials

Year:

1998

Language:

english

File:

PDF, 178 KB

english, 1998

44

High pressure and high temperature investigations in the system MgOSiO2H2O

Katsuhiro Yamamoto, Syun-Iti Akimoto

Journal:

Journal of Solid State Chemistry

Year:

1974

Language:

english

File:

PDF, 704 KB

english, 1974

45

Effect of doping on metal doped semiconductor

Bhatt Mahesh Datt, Shugo Suzuki, Takeaki Sakurai, Katsuhiro Akimoto

Journal:

Current Applied Physics

Year:

2011

Language:

english

File:

PDF, 209 KB

english, 2011

46

Cathodoluminescence of GaN films grown under Ga and N rich conditions by radio-frequency-molecular beam epitaxy

Sung Hwan Cho, Uitsu Tanaka, Takahiro Maruyama, Katsuhiro Akimoto, Hajime Okumura, Sadafumi Yoshida

Journal:

Journal of Crystal Growth

Year:

1997

Language:

english

File:

PDF, 524 KB

english, 1997

47

Induction of inflammatory reactions by lipopolysaccharide in hamster sebaceous glands and pilosebaceous units in vivo and in vitro

Katsuhiro Iinuma, Takashi Sato, Noriko Akimoto, Hirokazu Kurihara, Akira Ito

Journal:

Experimental Dermatology

Year:

2010

Language:

english

File:

PDF, 289 KB

english, 2010

48

Involvement of Propionibacterium acnes in the Augmentation of Lipogenesis in Hamster Sebaceous Glands In Vivo and In Vitro

Iinuma, Katsuhiro, Sato, Takashi, Akimoto, Noriko, Noguchi, Norihisa, Sasatsu, Masanori, Nishijima, Setsuko, Kurokawa, Ichiro, Ito, Akira

Journal:

The Journal of Investigative Dermatology

Year:

2009

Language:

english

File:

PDF, 1.64 MB

english, 2009

49

Energy level alignment at interfaces between 3-(4-biphenylyl)-4-phenyl-5-(4-tert-butyl phenyl)-1, 2, 4-triazole (TAZ) and metals (Ca, Mg, Ag, and Au): experiment and theory

Mahesh Datt Bhatt, Akihisa Baba, Takeaki Sakurai, Katsuhiro Akimoto

Journal:

Journal of Solid State Electrochemistry

Year:

2012

Language:

english

File:

PDF, 729 KB

english, 2012

50

Chemical bonding and electronic properties of NTCDA/metal interfaces

Takahiro Maruyama, Norikazu Sugawara, Akira Hirasawa, Katsuhiro Akimoto

Journal:

Surface Science

Year:

2001

Language:

english

File:

PDF, 119 KB

english, 2001