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Research Output 1994 2018

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Article
2018
12 Citations (Scopus)
Dendrimers
Organic light emitting diodes (OLED)
Fluorescence
Ethanol
Doping (additives)
9 Citations (Scopus)
Dendrimers
Organic light emitting diodes (OLED)
Substitution reactions
Fluorescence
Electrons
2017
5 Citations (Scopus)

Cathode buffer composed of fullerene-ethylenediamine adduct for an organic solar cell

Kimoto, Y., Akiyama, T. & Fujita, K., Feb 1 2017, In : Japanese Journal of Applied Physics. 56, 2, 021601.

Research output: Contribution to journalArticle

ethylenediamine
Buffer layers
Fullerenes
adducts
fullerenes
1 Citation (Scopus)
Polyethyleneimine
Fullerenes
equivalent circuits
Equivalent circuits
Buffers
37 Citations (Scopus)
Organic light emitting diodes (OLED)
Agglomeration
Fluorescence
Dendrimers
Quantum efficiency

Necessity of interlayer in tandem organic solar cells composed of a bulk heterojunction unit cell and the equivalent circuit

Lan, S., Kimoto, Y. & Fujita, K., Sep 2 2017, In : Molecular Crystals and Liquid Crystals. 654, 1, p. 249-255 7 p.

Research output: Contribution to journalArticle

equivalent circuits
Equivalent circuits
Heterojunctions
heterojunctions
interlayers
40 Citations (Scopus)

Thermally activated delayed fluorescence OLEDs with fully solution processed organic layers exhibiting nearly 10% external quantum efficiency

Albrecht, K., Matsuoka, K., Yokoyama, D., Sakai, Y., Nakayama, A., Fujita, K. & Yamamoto, K., 2017, In : Chemical Communications. 53, 16, p. 2439-2442 4 p.

Research output: Contribution to journalArticle

Dendrimers
Triazines
Organic light emitting diodes (OLED)
Quantum efficiency
Fluorescence
2016

Carrier density and mobility in n-doped poly(P-phenylene vinylene)

Sakiyama, S., Komura, T., Iwashita, H., Mizutani, N. & Fujita, K., Jan 1 2016, In : Evergreen. 3, 1, p. 18-20 3 p.

Research output: Contribution to journalArticle

Carrier mobility
Carrier concentration
conductivity
Doping (additives)
Semiconductor materials
2 Citations (Scopus)
sprayers
Doping (additives)
polymers
carrier mobility
Film preparation
2 Citations (Scopus)
transistors
field effect transistors
hole mobility
vacuum
vacuum deposition
3 Citations (Scopus)

Influence of Processing Conditions on the Performance of Cu2ZnSnS4 Nanocrystal Solar Cells

Kida, T., Horita, K., Suehiro, S., Yuasa, M., Quitain, A. T., Tanaka, T., Fujita, K., Ishiwata, Y. & Shimanoe, K., Jan 1 2016, In : ChemistrySelect. 1, 1, p. 86-93 8 p.

Research output: Contribution to journalArticle

Nanocrystals
Solar cells
Processing
Photoelectrochemical cells
Chemical analysis
2015
149 Citations (Scopus)

Carbazole dendrimers as solution-processable thermally activated delayed-fluorescence materials

Albrecht, K., Matsuoka, K., Fujita, K. & Yamamoto, K., May 4 2015, In : Angewandte Chemie - International Edition. 54, 19, p. 5677-5682 6 p.

Research output: Contribution to journalArticle

Dendrimers
Fluorescence
Organic light emitting diodes (OLED)
Triazines
Quantum efficiency
3 Citations (Scopus)

Modulation of electrochemical property of carbon nanodot by post-chemical reductions

Matsuoka, K. I. & Fujita, K., Apr 1 2015, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 470, p. 15-21 7 p.

Research output: Contribution to journalArticle

Electrochemical properties
Carbon
Modulation
modulation
carbon
42 Citations (Scopus)

Synthesis of Copper-Antimony-Sulfide Nanocrystals for Solution-Processed Solar Cells

Suehiro, S., Horita, K., Yuasa, M., Tanaka, T., Fujita, K., Ishiwata, Y., Shimanoe, K. & Kida, T., Aug 17 2015, In : Inorganic chemistry. 54, 16, p. 7840-7845 6 p.

Research output: Contribution to journalArticle

Antimony
Sulfides
antimony
Nanocrystals
sulfides
2014
6 Citations (Scopus)

C60-ethylenediamine adduct thin film as a buffer layer for inverted-type organic solar cells

Ono, Y., Akiyama, T., Banya, S., Izumoto, D., Saito, J., Fujita, K., Sakaguchi, H., Suzuki, A. & Oku, T., Jan 1 2014, In : RSC Advances. 4, 66, p. 34950-34954 5 p.

Research output: Contribution to journalArticle

ethylenediamine
Buffer layers
Thin films
Titanium oxides
Solar cells
8 Citations (Scopus)

Facile fabrication and photovoltaic application of [60]fullerene assembly films formed by reaction between fullerene and amines

Banya, S., Akiyama, T., Matsumoto, T., Fujita, K. & Oku, T., Jan 1 2014, In : Bulletin of the Chemical Society of Japan. 87, 12, p. 1335-1342 8 p.

Research output: Contribution to journalArticle

Fullerenes
ethylenediamine
Amines
Fabrication
Solar cells
34 Citations (Scopus)

Solution-processed Cu2ZnSnS4 nanocrystal solar cells: Efficient stripping of surface insulating layers using alkylating agents

Suehiro, S., Horita, K., Kumamoto, K., Yuasa, M., Tanaka, T., Fujita, K., Shimanoe, K. & Kida, T., Jan 16 2014, In : Journal of Physical Chemistry C. 118, 2, p. 804-810 7 p.

Research output: Contribution to journalArticle

Alkylating Agents
stripping
Nanocrystals
Solar cells
nanocrystals
2013
18 Citations (Scopus)

Hole injection enhancement by sparsely dispersed Au nanoparticles on indium tin oxide electrode in organic light emitting devices

Wang, D., Yasui, K., Ozawa, M., Odoi, K., Shimamura, S. & Fujita, K., Jan 14 2013, In : Applied Physics Letters. 102, 2, 023302.

Research output: Contribution to journalArticle

indium oxides
tin oxides
injection
nanoparticles
electrodes
2 Citations (Scopus)

Improvement of organic solar cells by anode buffer omposed of evaporated gold nanoparticles

Wang, D., Yukitake, N. & Fujita, K., Oct 1 2013, In : Japanese journal of applied physics. 52, 10 PART1, 100211.

Research output: Contribution to journalArticle

Anodes
anodes
buffers
solar cells
Gold
2 Citations (Scopus)

Titration analysis of electron storage and discharge properties of carbon nanodots

Matsuoka, K. I., Shibuya, R. & Fujita, K., Feb 21 2013, In : Chemistry Letters. 42, 2, p. 156-158 3 p.

Research output: Contribution to journalArticle

Titration
Carbon
Electrons
Paraquat
Experiments
2012

A new spray deposition technique to fabricate polymer electronic devices

Fujita, K., Mar 2012, In : Kobunshi. 61, 3, p. 132-133 2 p.

Research output: Contribution to journalArticle

Polymers
Film preparation
Photovoltaic cells
Polymer films
Heterojunctions
2011
Photovoltaic cells
Heterojunctions
Polymers
Fullerenes
Semiconductor materials
2010
8 Citations (Scopus)

Anode buffer layer containing au nanoparticles for high stability organic solar cells

Morioka, R., Yasui, K., Ozawa, M., Odoi, K., Ichikawa, H. & Fujita, K., Oct 1 2010, In : Journal of Photopolymer Science and Technology. 23, 3, p. 313-316 4 p.

Research output: Contribution to journalArticle

Buffer layers
Anodes
Nanoparticles
Polystyrenes
Energy conversion
1 Citation (Scopus)
Photovoltaic cells
photovoltaic cells
sprayers
Heterojunctions
heterojunctions
2009
4 Citations (Scopus)

Bulk heterojunction photovoltaic cells prepared by evaporative spray deposition uslng ultradilute solution technique

Maeda, R., Iwamoto, T., Shakutsui, M. & Fujita, K., Dec 1 2009, In : Journal of Photopolymer Science and Technology. 22, 4, p. 525-528 4 p.

Research output: Contribution to journalArticle

Photovoltaic cells
Heterojunctions
Fullerenes
Polymers
Spin coating
10 Citations (Scopus)

Electrical bistability of composite film comprising hyper-branched polymer and gold nanoparticle

Ichikawa, H., Yasui, K., Ozawa, M. & Fujita, K., May 1 2009, In : Synthetic Metals. 159, 9-10, p. 973-976 4 p.

Research output: Contribution to journalArticle

Composite films
Equivalent circuits
Gold
Polymers
Capacitors
27 Citations (Scopus)

Improved efficiency of polymer light-emitting diodes by inserting a hole transport layer formed without thermal treatment above glass transition temperature

Shakutsui, M., Matsuura, H. & Fujita, K., Jan 1 2009, In : Organic Electronics. 10, 5, p. 834-842 9 p.

Research output: Contribution to journalArticle

glass transition temperature
Light emitting diodes
Polymers
light emitting diodes
Heat treatment
12 Citations (Scopus)
Light emitting diodes
sprayers
Polymers
light emitting diodes
polymers
2008

Large domain film of bis(styrilanthracene) derivatives prepared by a simple melt-freezing process and the improvement of field effect hole mobility

Kontshi, M., Fujita, K. & Tsuisui, T., Jun 13 2008, In : Japanese Journal of Applied Physics. 47, 6 PART 1, p. 4732-4735 4 p.

Research output: Contribution to journalArticle

Hole mobility
hole mobility
Freezing
freezing
Derivatives
15 Citations (Scopus)

Polymer field effect transistors of F8T2 prepared by evaporative spray deposition using ultradilute solution technique

Sagane, K., Shakutsui, M., Tsutsui, T. & Fujita, K., Aug 25 2008, In : Journal of Photopolymer Science and Technology. 21, 2, p. 193-196 4 p.

Research output: Contribution to journalArticle

Field effect transistors
Polymers
Pixels
Polymer solutions
Aerosols
2007
8 Citations (Scopus)

Design of multilayer structure for UV organic light-emitting diodes based on 2-(2-naphthyl)-9,9′-spirobifluorene

Etori, H., Yasuda, T., Jin, X. L., Fujita, K., Mataka, S. & Tsutsui, T., Aug 6 2007, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 46, 8 A, p. 5071-5075 5 p.

Research output: Contribution to journalArticle

Organic light emitting diodes (OLED)
laminates
Multilayers
light emitting diodes
injection
3 Citations (Scopus)
high gravity environments
field effect transistors
fabrication
electrodes
thin films
6 Citations (Scopus)

Improved performance in polymer-fullerene blend photovoltaic cells by insertion of C60 interlayer

Maeda, R., Fujita, K. & Tsutsui, T., Jan 1 2007, In : Molecular Crystals and Liquid Crystals. 471, 1, p. 123-128 6 p.

Research output: Contribution to journalArticle

Fullerenes
Photovoltaic cells
photovoltaic cells
fullerenes
insertion
Light emitting diodes
Polymers
Substrates
Temperature
Conjugated polymers
15 Citations (Scopus)

Multichannel biosensing platform of surface-immobilized gold nanospheres for linear and nonlinear optical imaging

Tsuboi, K., Fukuba, S., Naraoka, R., Fujita, K. & Kajikawa, K., Jul 10 2007, In : Applied Optics. 46, 20, p. 4486-4490 5 p.

Research output: Contribution to journalArticle

Nanospheres
platforms
Gold
gold
Imaging techniques
1 Citation (Scopus)

Parylene-C and high-k polymer bilayer gate dielectric for low-operating voltage organic field-effect transistors

Ashimine, T., Onoue, T., Yasuda, T., Fujita, K. & Tsutsui, T., Jan 1 2007, In : Molecular Crystals and Liquid Crystals. 471, 1, p. 221-227 7 p.

Research output: Contribution to journalArticle

Organic field effect transistors
Gate dielectrics
Polymers
field effect transistors
polymers
1 Citation (Scopus)

Poly(p-phenylenevinylene)-based field-effect transistors with platinum source-drain electrodes

Kayashima, H., Yasuda, T., Fujita, K. & Tsutsui, T., Mar 21 2007, In : Journal of Physics D: Applied Physics. 40, 6, p. 1646-1648 3 p., 010.

Research output: Contribution to journalArticle

Field effect transistors
Platinum
platinum
Hole mobility
field effect transistors
2006
25 Citations (Scopus)

Ambipolar carrier transport in polycrystalline pentacene thin-film transistors

Yasuda, T., Goto, T., Fujita, K. & Tsutsui, T., Jan 1 2006, In : Molecular Crystals and Liquid Crystals. 444, p. 219-224 6 p.

Research output: Contribution to journalArticle

Carrier transport
Thin film transistors
transistors
Hole mobility
hole mobility
17 Citations (Scopus)

Electrical bistability of organic thin-film device using Ag electrode

Terai, M., Fujita, K. & Tsutsui, T., Apr 25 2006, In : Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 45, 4 B, p. 3754-3757 4 p.

Research output: Contribution to journalArticle

Thin film devices
Electrodes
electrodes
Nanoclusters
Electric potential
14 Citations (Scopus)

High efficiency polarization-sensitive organic photovoltaic devices

Tanaka, H., Yasuda, T., Fujita, K. & Tsutsui, T., Jun 19 2006, In : Applied Physics Letters. 88, 25, 253506.

Research output: Contribution to journalArticle

polarization
ITO (semiconductors)
polarized light
photocurrents
heterojunctions

Highly-oriented organic thin films and application for photovoltaic device

Tanaka, H., Yasuda, T., Fujita, K. & Tsutsui, T., Jan 1 2006, In : Molecular Crystals and Liquid Crystals. 462, 1, p. 67-73 7 p.

Research output: Contribution to journalArticle

Conversion efficiency
Heterojunctions
Thin films
thin films
heterojunctions
15 Citations (Scopus)
Light emitting diodes
sprayers
Heterojunctions
heterojunctions
light emitting diodes
11 Citations (Scopus)
Vacuum deposition
Vapor deposition
vacuum deposition
Perovskite
vapor deposition
29 Citations (Scopus)

Second-harmonic spectroscopy of surface immobilized gold nanospheres above a gold surface supported by self-assembled monolayers

Tsuboi, K., Abe, S., Fukuba, S., Shimojo, M., Tanaka, M., Furuya, K., Fujita, K. & Kajikawa, K., 2006, In : Journal of Chemical Physics. 125, 17, 174703.

Research output: Contribution to journalArticle

Nanospheres
Self assembled monolayers
Gold
Harmonic generation
Spectroscopy
52 Citations (Scopus)

Transparent image sensors using an organic multilayer photodiode

Tanaka, H., Yasuda, T., Fujita, K. & Tsutsui, T., Sep 5 2006, In : Advanced Materials. 18, 17, p. 2230-2233 4 p.

Research output: Contribution to journalArticle

Photodetectors
Photodiodes
Image sensors
Multilayers
Polarization
2005
27 Citations (Scopus)

Capacitance measurement in organic thin-film device with internal charge separation zone

Terai, M., Fujita, K. & Tsutsui, T., Aug 26 2005, In : Japanese Journal of Applied Physics, Part 2: Letters. 44, 33-36, p. L1059-L1062

Research output: Contribution to journalArticle

Thin film devices
Capacitance measurement
polarization (charge separation)
capacitance
thin films
109 Citations (Scopus)

Carrier transport properties of monodisperse glassy-nematic oligofluorenes in organic field-effect transistors

Yasuda, T., Fujita, K., Tsutsui, T., Geng, Y., Culligan, S. W. & Chen, S. H., Jan 25 2005, In : Chemistry of Materials. 17, 2, p. 264-268 5 p.

Research output: Contribution to journalArticle

Organic field effect transistors
Carrier transport
Transport properties
Amorphous films
Hole mobility
13 Citations (Scopus)
Electroluminescence
electroluminescence
indium oxides
Perovskite
tin oxides
23 Citations (Scopus)

Emission mechanism of double-insulating organic electroluminescence device driven at AC voltage

Lee, S. B., Fujita, K. & Tsutsui, T., Sep 8 2005, In : Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 44, 9 A, p. 6607-6611 5 p.

Research output: Contribution to journalArticle

Electroluminescence
electroluminescence
alternating current
Tin oxides
Indium
1 Citation (Scopus)

High efficiency polarization-sensitive photovoltaic devices using oriented organic thin film

Tanaka, H., Yasuda, T., Fujita, K. & Tsutsui, T., Dec 1 2005, In : Proceedings of SPIE - The International Society for Optical Engineering. 5938, p. 1-8 8 p., 593811.

Research output: Contribution to journalArticle

Electrode
High Efficiency
Thin Films
Polarization
short circuit currents