Research output per year
Research output per year
- 41 results
Search results
-
2024
Molecular dynamics study of N,N′-di-n-alkyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI)/rubrene interface: Why the charge transfer at the interface is optimized depending on the alkyl chain length of PTCDI
Ishiyama, T., Morimoto, M. & Naka, S., 2024/10/28, In: Journal of Chemical Physics. 161, 16, 164706.Research output: Contribution to journal › Article › peer-review
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Stable driving voltage in exciplex-type OLEDs with a bilayer interface
Morimoto, M., Nagahama, H. & Naka, S., 2024/08/01, In: Applied Physics Express. 17, 8, 081006.Research output: Contribution to journal › Article › peer-review
Open Access -
2023
Blue organic light-emitting diode with a turn-on voltage of 1.47 V
Izawa, S., Morimoto, M., Fujimoto, K., Banno, K., Majima, Y., Takahashi, M., Naka, S. & Hiramoto, M., 2023/12, In: Nature Communications. 14, 1, 5494.Research output: Contribution to journal › Article › peer-review
31 Scopus citations -
Hole Injection Characteristics and Annealing Temperature Dependence for Organic Light-Emitting Diodes Using Spontaneous Polarization
Fukazawa, R., Maegawa, Y., Morimoto, M., Matsubara, R., Kubono, A. & Naka, S., 2023/12, In: Physica Status Solidi (A) Applications and Materials Science. 220, 24, 2300161.Research output: Contribution to journal › Article › peer-review
Open Access -
Influence of Introduction of an Exciton Capture Layer in the Donor on the Performance of Exciplex Upconversion-Type Organic Light-Emitting Diodes
Masuda, T., Morimoto, M. & Naka, S., 2023/12, In: Physica Status Solidi (A) Applications and Materials Science. 220, 24, 2300239.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
2022
Efficient Interfacial Upconversion Enabling Bright Emission at an Extremely Low Driving Voltage in Organic Light-Emitting Diodes
Izawa, S., Morimoto, M., Naka, S. & Hiramoto, M., 2022/02/18, In: Advanced Optical Materials. 10, 4, 2101710.Research output: Contribution to journal › Article › peer-review
Open Access29 Scopus citations -
2021
Carrier Mobilities in Amorphous Organic Semiconductor Films Prepared at Various Film Formation Processes
Miyashige, K., Morimoto, M. & Naka, S., 2021/10, In: Physica Status Solidi (A) Applications and Materials Science. 218, 19, 2100330.Research output: Contribution to journal › Article › peer-review
Open Access2 Scopus citations -
Near-infrared organic light-emitting diodes of pure fluorescence emission using small-molecule boron-dipyrromethene derivative
Shikano, M., Morimoto, M. & Naka, S., 2021/12, In: Organic Electronics. 99, 106320.Research output: Contribution to journal › Article › peer-review
Open Access7 Scopus citations -
2019
Patterned emission of organic light emitting diodes with laser irradiation
Sugimoto, R., Morimoto, M. & Naka, S., 2019/11, MOC 2019 - 24th Microoptics Conference. Institute of Electrical and Electronics Engineers Inc., p. 232-233 2 p. 8982803. (MOC 2019 - 24th Microoptics Conference).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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2018
Annealing effect of E-beam evaporated TiO2 films and their performance in perovskite solar cells
Hossain, M. F., Naka, S. & Okada, H., 2018/06/01, In: Journal of Photochemistry and Photobiology A: Chemistry. 360, p. 109-116 8 p.Research output: Contribution to journal › Article › peer-review
29 Scopus citations -
Fabrication of Perovskite Solar Cells with E-beam Evaporation TiO2Thin films: Considering Substrate Heater
Hossain, M. F., Naka, S. & Okada, H., 2018/08/15, AM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings. Institute of Electrical and Electronics Engineers Inc., 8437395. (AM-FPD 2018 - 25th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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Fabrication of perovskite solar cells with ZnO nanostructures prepared on seedless ITO substrate
Hossain, M. F., Naka, S. & Okada, H., 2018/08/01, In: Journal of Materials Science: Materials in Electronics. 29, 16, p. 13864-13871 8 p.Research output: Contribution to journal › Article › peer-review
5 Scopus citations -
2017
Investigation of photovoltaic performance of perovskite solar cells with α-npd and electron-beam evaporated tio2 photoelectrode
Hossain, M. F., Okada, H. & Naka, S., 2017/08/08, AM-FPD 2017 - 24th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 219-222 4 p. 8006128. (AM-FPD 2017 - 24th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
1 Scopus citations -
Organic thin-film transistors with bilayer of rubbed and evaporated hydrocarbon-based acene as active layer
Funada, S., Shaari, S., Naka, S. & Okada, H., 2017/03/15, In: Materials Science in Semiconductor Processing. 60, p. 1-4 4 p.Research output: Contribution to journal › Article › peer-review
6 Scopus citations -
2014
Direct comparison of charge transport and electronic traps in polymer-fullerene blends under dark and illuminated conditions
Lou, Y. H., Zhang, L., Xu, M. F., Wang, Z. K., Naka, S., Okada, H. & Liao, L. S., 2014/01, In: Organic Electronics. 15, 1, p. 299-305 7 p.Research output: Contribution to journal › Article › peer-review
17 Scopus citations -
2013
Dual roles of MoO3-doped pentacene thin films as hole-extraction and multicharge-separation functions in pentacene/C60 heterojunction organic solar cells
Lou, Y. H., Xu, M. F., Wang, Z. K., Naka, S., Okada, H. & Liao, L. S., 2013/03/18, In: Applied Physics Letters. 102, 11, 113305.Research output: Contribution to journal › Article › peer-review
33 Scopus citations -
Efficient electron transport in 4,4′-bis[N-(1-napthyl)-N-phenyl- amino] biphenyl and the applications in white organic light emitting devices
Lou, Y., Okawa, Y., Wang, Z., Naka, S. & Okada, H., 2013/03, In: Organic Electronics. 14, 3, p. 1015-1020 6 p.Research output: Contribution to journal › Article › peer-review
8 Scopus citations -
Erratum: Efficient electron transport in 4,4′-bis[N-(1-napthyl)-N- phenyl-amino] biphenyl and the applications in white organic light emitting devices (Organic Electronics: physics, materials, applications (2013) 14 (1015-1020))
Lou, Y., Okawa, Y., Wang, Z., Naka, S. & Okada, H., 2013/06, In: Organic Electronics. 14, 6, p. 1693 1 p.Research output: Contribution to journal › Comment/debate
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Evaluation of uniformity for organic film evaporation using two dimensional different apertures
Kamimura, Y., Okada, H. & Naka, S., 2013, In: Vacuum. 92, p. 26-31 6 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
Mobility enhancement of top contact pentacene based organic thin film transistor with bi-layer GeO/Au electrodes
Waqas Alam, M., Wang, Z., Naka, S. & Okada, H., 2013/02/11, In: Applied Physics Letters. 102, 6, 061105.Research output: Contribution to journal › Article › peer-review
28 Scopus citations -
Origin of enhanced electrical and conducting properties in pentacene films doped by molybdenum trioxide
Lou, Y. H., Xu, M. F., Zhang, L., Wang, Z. K., Naka, S., Okada, H. & Liao, L. S., 2013, In: Organic Electronics. 14, 10, p. 2698-2704 7 p.Research output: Contribution to journal › Article › peer-review
57 Scopus citations -
2012
Bi-functional electroluminescent and photovoltaic devices based on rubrene-doped poly(3-hexylthiophene):1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6) C61 blends
Lou, Y., Wang, Z., Naka, S. & Okada, H., 2012/03, In: Synthetic Metals. 162, 3-4, p. 281-284 4 p.Research output: Contribution to journal › Article › peer-review
9 Scopus citations -
Charge transport characteristics in P3HT:PCBM organic blends under illumination: Influence of metal work functions
Lou, Y., Wang, Z., Naka, S. & Okada, H., 2012/03/09, In: Chemical Physics Letters. 529, p. 64-68 5 p.Research output: Contribution to journal › Article › peer-review
18 Scopus citations -
Improvement of roll-off in power efficiency for mixed single layer organic light emitting devices by co-doping
Lou, Y., Geng, Z., Wang, Z., Naka, S. & Okada, H., 2012/08, In: Synthetic Metals. 162, 13-14, p. 1204-1209 6 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Optical, morphological, structural, electrical, molecular orientation, and electroluminescence characteristics of organic semiconductor films prepared at various deposition rates
Matsushima, T., Shiomura, K., Naka, S. & Murata, H., 2012/01/01, In: Thin Solid Films. 520, 6, p. 2283-2288 6 p.Research output: Contribution to journal › Article › peer-review
18 Scopus citations -
2011
Enhancement of electron injection in organic light-emitting diodes with photosensitive charge generation layer
Okawa, Y., Naka, S. & Okada, H., 2011/01, In: Japanese Journal of Applied Physics. 50, 1 PART 3, 01BC11.Research output: Contribution to journal › Article › peer-review
9 Scopus citations -
Improved performance of mixed single layer top-emission organic light emitting devices using capping layer
Wang, Z., Naka, S. & Okada, H., 2011/02, In: Solid-State Electronics. 56, 1, p. 155-158 4 p.Research output: Contribution to journal › Article › peer-review
8 Scopus citations -
2010
High efficiency rubrene based inverted top-emission organic light emitting devices with a mixed single layer
Wang, Z., Lou, Y., Naka, S. & Okada, H., 2010/07, In: Journal of Luminescence. 130, 7, p. 1198-1202 5 p.Research output: Contribution to journal › Article › peer-review
20 Scopus citations -
Organic thin-film transistors with tailored liquid sources of HfO 2 as a high-κ insulator
Nishizawa, R., Naka, S., Okada, H., Suzuki, K. & Kato, K., 2010/04, In: Japanese Journal of Applied Physics. 49, 4 PART 2, 04DK08.Research output: Contribution to journal › Article › peer-review
1 Scopus citations -
Temperature dependence of carrier injection in small molecular organic light emitting device with a mixed single layer
Wang, Z., Lou, Y., Naka, S. & Okada, H., 2010/12/06, In: Chemical Physics Letters. 501, 1-3, p. 75-79 5 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
2009
Influence of ITO patterning on reliability of organic light emitting devices
Wang, Z., Naka, S. & Okada, H., 2009/11/30, In: Thin Solid Films. 518, 2, p. 497-500 4 p.Research output: Contribution to journal › Article › peer-review
13 Scopus citations -
2008
Light-emitting seal using self-aligned organic light-emitting structure
Ohmori, M., Ueno, S., Kurachi, N., Sawamura, M., Hattori, M., Inoue, T., Miyabayashl, T., Takao, Y., Hibino, S., Tsuchiya, I., Bessho, H., Ohara, K., Ohama, M., Hoshino, M., Ayukawa, S., Miyasato, R., Tsutsui, N., Miura, N., Yamanaka, M. & Naka, S. & 2 others, , 2008/01/22, In: Japanese Journal of Applied Physics. 47, 1 PART 2, p. 472-475 4 p.Research output: Contribution to journal › Article › peer-review
11 Scopus citations -
2006
Solution-processed small organic electrophosphorescent devices with arylamine polymer buffer layer
Hirano, K., Naka, S., Okada, H., Onnagawa, H., Nakai, T. & Sato, H., 2006, In: Journal of Photopolymer Science and Technology. 19, 2, p. 177-180 4 p.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Synthesis and electroluminescence properties of fac-tris(2-phenylpyridine)- iridium derivatives containing hole-trapping moieties
Ono, K., Joho, M., Saito, K., Tomura, M., Matsushita, Y., Naka, S., Okada, H. & Onnagawa, H., 2006/09/18, In: European Journal of Inorganic Chemistry. 18, p. 3676-3683 8 p.Research output: Contribution to journal › Article › peer-review
64 Scopus citations -
2005
Improved white organic electroluminescent devices using fine mesh as an evaporation mask
Tsuji, T., Naka, S., Okada, H. & Onnagawa, H., 2005/01, In: Current Applied Physics. 5, 1, p. 1-4 4 p.Research output: Contribution to journal › Article › peer-review
12 Scopus citations -
Macrocyclic and acyclic bis(2,5-diphenyl-1,3,4-oxadiazole)s with electron-transporting and hole-blocking ability in organic electroluminescent devices
Ono, K., Ezaka, S., Higashibata, A., Hosokawa, R., Ohkita, M., Saito, K., Suto, M., Tomura, M., Matsushita, Y., Naka, S., Okada, H. & Onnagawa, H., 2005/08/05, In: Macromolecular Chemistry and Physics. 206, 15, p. 1576-1582 7 p.Research output: Contribution to journal › Article › peer-review
13 Scopus citations -
Organic electrophosphorescent devices with mixed hole transport material as emission layer
Matsushima, H., Naka, S., Okada, H. & Onnagawa, H., 2005/05, In: Current Applied Physics. 5, 4, p. 305-308 4 p.Research output: Contribution to journal › Article › peer-review
52 Scopus citations -
2000
Carrier transport properties of organic materials for EL device operation
Naka, S., Okada, H., Onnagawa, H., Yamaguchi, Y. & Tsutsui, T., 2000/06/01, In: Synthetic Metals. 111, p. 331-333 3 p.Research output: Contribution to journal › Conference article › peer-review
240 Scopus citations -
High electron mobility in bathophenanthroline
Naka, S., Okada, H., Onnagawa, H. & Tsutsui, T., 2000/01/10, In: Applied Physics Letters. 76, 2, p. 197-199 3 p.Research output: Contribution to journal › Article › peer-review
314 Scopus citations -
1997
Electrical properties of organic electroluminescent devices with aluminium alloy cathode
Naka, S., Tamekawa, M., Terashita, T., Okada, H., Anada, H. & Onnagawa, H., 1997/12, In: Synthetic Metals. 91, 1-3, p. 129-130 2 p.Research output: Contribution to journal › Article › peer-review
53 Scopus citations -
Electroluminescence of a bichromophoric molecule with a benzoxyazolylcoumarin and carbazole moiety
Izumizawa, T., Uchida, M., Furukawa, K., Naka, S., Okada, H. & Onnagawa, H., 1997/07, In: Polymers for Advanced Technologies. 8, 7, p. 449-453 5 p.Research output: Contribution to journal › Article › peer-review
3 Scopus citations