[Peer reviewed papers]


Gamma-ray induced photo emission from GaN single crystal wafer

Toshihiro Nakamura, Tomoaki Nishimura, Kazuo Kuriyama, Tohru Nakamura, and Atsushi Kinomura

Applied Physics Letters 118, 032106 (2021)

10.1063/5.0031098


Evolutionary Applications of Functional Porous Silicon

Nobuyoshi Koshida, Akira Kojima, Toshihiro Nakamura

ECS Transactions 98, 29 (2020)


Spectral Tuning of Colloidal Si Nanocrystal Luminescence by Post-Laser Irradiation in Liquid

Ze Yuan, Toshihiro Nakamura

RSC Advances 10, 32992-32998 (2020)

10.1039/D0RA05205A


High-yield green fabrication of colloidal silicon quantum dots by low-temperature thermal cracking of porous silicon

Toshihiro Nakamura, Nobuyoshi Koshida, Ze Yuan, Jun Otsubo

APL Materials 8, 081105 (2020)

10.1063/5.0014206


Quantum-Assisted Photon Management in Perovskite Solar Cells

Ying-Chiao Wang, Shao-Ku Huang, Toshihiro Nakamura, Yu-Ting Kao, Chun-Hao Chiang, Di-Yan Wang, Yuan-Jay Chang, Nobuyoshi Koshida, Toshikazu Shimada, Shihao Liu, Chun-Wei Chen, Kazuhito Tsukagoshi

NPG Asia Materials 12, 54 (2020)

10.1038/s41427-020-00236-1


Facile Formation of Stable Water-Dispersed Luminescent Silicon Nanocrystals by Laser Processing in liquid: Toward Fluorescent Labeling for Bio-imaging

Ze Yuan, Toshihiro Nakamura, Shanmugavel Chinnathambi, Yanbai Pu, Naoto Shirahata, Kiyoto Matsuishi

ChemNanoMat 5, 1137-1143 2019

10.1002/cnma.201900289


Dynamics of resonance energy transfer process from Tb3+ to Eu3+ in Ga2O3 phosphor

Kenji Sawada, Nakamura Toshihiro

Journal of Luminescence 215,  116616 2019

10.1016/j.jlumin.2019.116616


Emerging Functions of Nanostructured Porous Silicon - With a focus on the emissive properties of photons, electrons, and ultrasound - Nobuyoshi Koshida, Nakamura Toshihiro

Frontiers in Chemistry 7 273 2019

10.3389/fchem.2019.00273


Unusual near-infrared luminescence from Ti-doped MgSiF6・6H2O powder

Shono Sakurai, Nakamura Toshihiro

Journal of Luminescence 211 157 161 2019

10.1016/j.jlumin.2019.03.035


Luminescence properties of Eu-activated TbAlO3 perovskite compound synthesized by metal organic decomposition Yuya Onishi, Nakamura Toshihiro, Hayato Sone, Adachi Sadao Japanese Journal of Applied Physics 57 82601 2018 10.7567/JJAP.57.082601


Synthesis and properties of Tb3Al5O12:Eu3+ garnet phosphor

Yuya Onishi, Nakamura Toshihiro, Hayato Sone, Adachi Sadao

Journal of Luminescence 197 242 247 2018

10.1016/j.jlumin.2018.01.043


Synthesis and properties of Rb2GeF6:Mn4+ red-emitting phosphor

Shono Sakurai, Toshihiro Nakamura, Sadao Adachi

Japanese Journal of Applied Physics 57 22601 2018

10.7567/JJAP.57.022601


Yellow-light emitting Tb3Al5O12:Ce3+ phosphor properties sensitized by Bi3+ ions

Yuya Onishi, Nakamura Toshihiro, Adachi Sadao

Journal of Luminescence 192 720 727 2017

10.1016/j.jlumin.2017.07.056


Synthesis and properties of Ca3Ga2Ge3O12:Tb3+ garnet phosphor

Sawada Kenji, Nakamura Toshihiro, Adachi Sadao

Ceramics International 43 14225 14232 2017

10.1016/j.ceramint.2017.07.170


An Orange-Light Emitting Garnet Phosphor: Tb3Ga5O12:Eu3+

Sawada Kenji, Nakamura Toshihiro, Adachi Sadao

ECS Journal of Solid State Science and Technology 6 8 R97 R104 2017

10.1149/2.0091708jss


Improvement of Laser Processing for Colloidal Silicon Nanocrystal Formation in a Reactive Solvent

Yuan Ze, Nakamura Toshihiro, Adachi Sadao, Matsuishi Kiyoto

The Journal of Physical Chemistry C 121 8623 8629 2017

10.1021/acs.jpcc.7b00288


Double threshold behavior in a resonance-controlled ZnO random laser

Niyuki Ryo, Fujiwara Hideki, Nakamura Toshihiro, Ishikawa Yoshie, Koshizaki Naoto, Tsuji Takeshi, Sasaki Keiji

APL Photonics 2 3 2017

10.1063/1.4974334


Luminescence color control and quantum-efficiency enhancement of colloidal Si nanocrystals by pulsed laser irradiation in liquid

Yuan Ze, Nakamura Toshihiro, Adachi Sadao, Matsuishi Kiyoto

Nanoscale 9 3 1193 1200 2017

10.1039/c6nr08757d


Photoluminescence properties of Tb(3)A1(5)O(12):Ce3+ garnet synthesized by the metal organic decomposition method Onishi Yuya, Nakamura Toshihiro, Adachi Sadao

Optical Materials 64 557 563 2017

10.1016/j.optmat.2017.01.024


Unique properties of ZnTiF6 center dot 6H(2)O:Mn4+ red-emitting hexahydrate phosphor

Hoshino Ryosuke, Sakurai Shono, Nakamura Toshihiro, Adachi Sadao

Journal of Luminescence 184 160 168 2017

10.1016/j.jlumin.2016.12.028

Luminescence properties of Tb3Al5O12 garnet and related compounds synthesized by the metal organic decomposition method

Onishi Yuya, Nakamura Toshihiro, Adachi Sadao

Journal of Luminescence 183 193 200 2017

10.1016/j.jlumin.2016.11.035


Synthesis and unique photoluminescence properties of Eu2Ti2O7 and Eu2TiO5

Orihashi Takuya, Nakamura Toshihiro, Adachi Sadao

Journal of the American Ceramic Society 99 9 3039 3046 2016

10.1039/c6ra13429g


Rb 2 SiF 6 :Mn 4+ and Rb 2 TiF 6 :Mn 4+ Red-Emitting Phosphors

Sakurai S., Nakamura T., Adachi S.

ECS Journal of Solid State Science and Technology 5 12R206 2016

10.1149/2.0171612jss


Resonant energy transfer in (Eu3+, Bi3+)-codoped CaZrO3 red-emitting phosphor

Orihashi Takuya, Nakamura Toshihiro, Adachi Sadao

RSC Advances 6 70 66130 66139 2016

10.1039/c6ra13429g


(Tb3+, Eu3+)-Codoped Ga2O3 Phosphors: Synthesis and Photoluminescence Properties Sawada Kenji, Nakamura Toshihiro, Adachi Sadao ECS 

Journal of Solid State Science and Technology 5 5 R67 R73 2016

10.1149/2.0261605jss


Solubility limit and luminescence properties of Eu3+ ions in Al2O3 powder

Onishi Yuya, Nakamura Toshihiro, Adachi Sadao

Journal of Luminescence 176 266 271 2016

10.1016/j.jlumin.2016.03.030


Abnormal photoluminescence phenomena in (Tb3+, Eu3+) codoped Ga2O3 phosphor

Sawada Kenji, Nakamura Toshihiro, Adachi Sadao

Journal of Alloys and Compounds 678 448 455 2016

10.1016/j.jallcom.2016.04.004


Structural change induced by thermal annealing of red-light-emitting ZnSnF6 center dot 6H(2)O:Mn4+ hexahydrate phosphor

Hoshino Ryosuke, Nakamura Toshihiro, Adachi Sadao

Japanese Journal of Applied Physics 55 5 2016

10.7567/JJAP.55.052601


Bright and multicolor luminescent colloidal Si nanocrystals prepared by pulsed laser irradiation in liquid

Nakamura Toshihiro, Yuan Ze, Watanabe Kanta, Adachi Sadao

Applied Physics Letters 108 2 2016

10.1063/1.4939902


Synthesis and Photoluminescence Properties of BaSnF6:Mn4+ Red Phosphor

Hoshino Ryosuke, Nakamura Toshihiro, Adachi Sadao

ECS Journal of Solid State Science and Technology 5 3 R37 R43 2016

10.1149/2.0151603jss


Tb3+ ion doping into Al2O3: Solubility limit and luminescence properties

Onishi Yuya, Nakamura Toshihiro, Adachi Sadao

Japanese Journal of Applied Physics 55 11 2016

10.7567/JAP.55.112401


Enhancement of Visible-Luminescence Saturation Intensity by Surface Plasmons in Ag/ZnO Films

Nakamura Toshihiro Physical Review Applied 6 4 2016

10.1103/PhysRevApplied.6.044009


Europium gallium garnet (Eu3Ga5O12) and Eu3GaO6: Synthesis and material properties

Sawada Kenji, Nakamura Toshihiro, Adachi Sadao

Journal of Applied Physics 120 14 2016

10.1063/1.4964444


Discrete-mode ZnO microparticle random laser

Nakamura Toshihiro, Sonoda Shohei, Yamamoto Taisei, Adachi Sadao Optics Letters 40 11 2661 2664 2015

10.1364/OL.40.002661


Size and dopant-concentration dependence of photoluminescence properties of ion-implanted phosphorus- and boron-codoped Si nanocrystals

Nakamura Toshihiro, Adachi Sadao, Fujii Minoru, Sugimoto Hiroshi, Miura Kenta, Yamamoto Shunya

Physical Review B 91 16 2015

10.1103/PhysRevB.91.165424


Temperature dependence of lasing characteristics of irregular-shaped-microparticle ZnO laser

Nakamura Toshihiro, Yamamoto Taisei, Adachi Sadao

Optics Express 23 22 2015

10.1364/OE.23.028905


Electron-hole plasma induced band gap renormalization in ZnO microlaser cavities

Dai Jun, Xu Chunxiang, Nakamura Toshihiro, Wang Yueyue, Li Jitao, Lin Yi

Optics Express 22 23 28831 28837 2014

10.1364/OE.22.028831


Emission decay rate of a light emitter on thin metal films

Nakamura Toshihiro, Moriyama Takumi, Nabatova-Gabain Nataliya, Adachi Sadao

Japanese Journal of Applied Physics 53 4 2014

10.7567/JJAP.53.045201


High-yield preparation of blue-emitting colloidal Si nanocrystals by selective laser ablation of porous silicon in liquid

Nakamura Toshihiro, Yuan Ze, Adachi Sadao

Nanotechnology 25 27 2014

10.1088/0957-4484/25/27/275602


Micronization of red-emitting K2SiF6:Mn4+ phosphor by pulsed laser irradiation in liquid

Nakamura Toshihiro, Yuan Ze, Adachi Sadao

Applied Surface Science 320 514 518 2014

10.1016/j.apsusc.2014.09.113


Origins of lasing emission in a resonance-controlled ZnO random laser

Nakamura Toshihiro, Fujiwara Hideki, Niyuki Ryo, Sasaki Keiji, Ishikawa Yoshie, Koshizaki Naoto, Tsuji Takeshi, Adachi Sadao

New Journal of Physics 16 2014

10.1088/1367-2630/16/9/093054


Plasmonic control of ZnO random lasing characteristics

Nakamura T, Sonoda S, Adachi S.

Laser Physics Letters 11 1 2014

10.1088/1612-2011/11/1/016004


Electron-hole plasma lasing in a ZnO random laser

Nakamura Toshihiro, Firdaus Kurniawan, Adachi Sadao

Physical Review B 86 20 2012

10.1103/PhysRevB.86.205103


Improved lasing characteristics of ZnO/organic-dye random laser

Firdaus Kurniawan, Nakamura Toshihiro, Adachi Sadao

Applied Physics Letters 100 17 2012

10.1063/1.4705471


Phosphorus and boron codoping of silicon nanocrystals by ion implantation: Photoluminescence properties Nakamura 

Toshihiro, Adachi Sadao, Fujii Minoru, Miura Kenta, Yamamoto Shunya

Physical Review B 85 4 2012

10.1103/PhysRevB.85.045441


Photoluminescence decay dynamics of silver/porous-silicon nanocomposites formed by metal-assisted etching

Nakamura Toshihiro, Adachi Sadao

Journal of Luminescence 132 11 3019 3026 2012

10.1016/j.jlumin.2012.06.031


Properties of magnetic nickel/porous-silicon composite powders

Nakamura Toshihiro, Adachi Sadao

AIP Advances 2 3 2012

10.1063/1.4754152


Strongly modified spontaneous emission decay rate of silicon nanocrystals near semicontinuous gold films

Nakamura Toshihiro, Tiwari Bishnu P, Adachi Sadao

Optics Express 20 24 26548 26558 2012

10.1364/OE.20.026548


Control of random lasing in ZnO/Al2O3 nanopowders Nakamura Toshihiro, Tiwari Bishnu P, Adachi Sadao

Applied Physics Letters 99 23 2011

10.1063/1.3665913


Direct Synthesis and Enhanced Catalytic Activities of Platinum and Porous-Silicon Composites by Metal-Assisted Chemical Etching

Nakamura Toshihiro, Tiwari Bishnu P, Adachi Sadao

Japanese Journal of Applied Physics 50 8 2011

10.1143/JJAP.50.081301


Gold-nanoparticle-assisted random lasing from powdered GaN

Nakamura Toshihiro, Hosaka Tomohiro, Adachi Sadao

Optics Express 19 2 467 475 2011

10.1364/OE.19.000467


Surface-plasmon-enhanced band-edge emission from Au/GaN powders

Nakamura Toshihiro, Hosaka Tomohiro, Adachi Sadao

Applied Physics Letters 98 16 2011

10.1063/1.3581214


Blue-emitting ZnSe random laser

Toru Takahashi, Toshihiro Nakamura, and Sadao Adachi

Proceedings of SPIE 7597 2010

10.1117/12.847278


Temperature-dependent random lasing from GaAs powder

T. Nakamura, T. Takahashi, S. Adachi

Proceedings of SPIE 7579 2010

10.1117/12.846085


Effects of thermal oxidation on the photoluminescence properties of porous silicon

Nakamura T, Ogawa T, Hosoya N, Adachi S.

Journal of Luminescence 130 4 682 687 2010

10.1016/j.jlumin.2009.11.018


Properties of silver/porous-silicon nanocomposite powders prepared by metal assisted electroless chemical etching

Nakamura Toshihiro, Hosoya Naoki, Tiwari Bishnu P, Adachi Sadao

Journal of Applied Physics 108 10 2010

10.1063/1.3514581


Temperature dependence of GaAs random laser characteristics

Nakamura Toshihiro, Takahashi Toru, Adachi Sadao

Physical Review B 81 12 2010

10.1103/PhysRevB.81.125324


Enhancement of Upconversion Luminescence from Er Doped Al2O3 Films by a Thin Metal Layer

T. Nakmaura, M. Fujii, Y. Usui, T. Aisaka, and S. Hayashi

ECS Transactions 16 31 87 93 2009

10.1149/1.3112643


Blue-light-emitting ZnSe random laser

Takahashi Toru, Nakamura Toshihiro, Adachi Sadao

Optics Letters 34 24 3923 3925 2009

10.1364/OL.34.003923


Resonant energy transfer from silicon nanocrystals to iodine molecules

Nakamura Toshihiro, Ogawa Tatsuya, Adachi Sadao, Fujii Minoru

Physical Review B 79 7 2009

10.1103/PhysRevB.79.075309


Resonant Energy Transfer from Porous Silicon to Iodine Molecules

T. Nakamura, T. Ogawa, T. Kubota, S. Adachi, and M. Fujii

ECS Transactions 16 3 267 276 2008

10.1149/1.2982565


Energy transfer from Si nanocrystals to Er ions near a metal layer

Fujii M, Nakamura T, Miura S, Inui M, Hayashi S. Physica 

Status Solidi a-Applications and Materials Science 205 1 47 51 2008

10.1002/pssa.200776717


Highly luminescent mono- and multilayers of immobilized CdTe nanocrystals: controlling optical properties through post chemical surface modification

Tsuruoka Takaaki, Takahashi Rena, Nakamura Toshihiro, Fujii Minoru, Akamatsu Kensuke, Nawafune Hidemi

Chemical Communications 14 1641 1643 2008

10.1039/b717732a


Enhancement of photoluminescence from excitons in silicon nanocrystals via coupling to surface plasmon polaritons Takeda Eiji, Fujii Minoru, 

 Nakamura Toshihiro, Mochizuki Yugo, Hayashi Shinji

Journal of Applied Physics 102 2 2007

10.1063/1.2753571


Spontaneous emission rate of Si nanocrystals on thin Au film

Nakamura Toshihiro, Fujii Minoru, Miura Satoru, Inui Masaki, Hayashi Shinji

Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers 46 10A 6498 6502 2007

10.1143/JJAP.46.6498


Enhancement and suppression of energy transfer from Si nanocrystals to Er ions through a control of the photonic mode density

Nakamura Toshihiro, Fujii Minoru, Miura Satoru, Inui Masaki, Hayashi Shinji

Physical Review B 74 4 2006

10.1103/PhysRevB.74.045302


Enhancement of photoluminescence from Yb and Er co-doped Al2O3 films by an asymmetric metal cavity Managaki 

N, Fujii M, Nakamura T, Usui Y, Hayashi S

Applied Physics Letters 88 4 2006

10.1063/1.2166685


Enhancement of radiative recombination rate of excitons in Si nanocrystals on Au film

Imakita Kenji, Fujii Minoru, Nakamura Toshihiro, Miura Satoru, Takeda Eiji, Hayashi Shinji

Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers 45 8A 6132 6136 2006

10.1143/JJAP.45.6132


Size dependence of photoluminescence quantum efficiency of Si nanocrystals

Miura Satoru, Nakamura Toshihiro, Fujii Minoru, Inui Masaki, Hayashi Shinji

Physical Review B 73 24 2006

10.1103/PhysRevB.73.245333


Surface plasmon polariton mediated photoluminescence from excitons in silicon nanocrystals Takeda Eiji, Nakamura Toshihiro, Fujii Minoru, Miura Satoru, Hayashi Shinji

Applied Physics Letters 89 10 2006

10.1063/1.2345261


Enhancement of dye fluorescence by gold nanoparticles: Analysis of particle size dependence

Nakamura T, Hayashi S

Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers 44 9A 6833 6837 2005

10.1143/JJAP.44.6833


Modification of energy transfer from Si nanocrystals to Er3+ near a Au thin film

Nakamura T, Fujii M, Imakita K, Hayashi S

Physical Review B 72 23 2005

10.1103/PhysRevB.72.235412