Publications

[49] Enhanced Electroluminescence from a Thiophene-Based Insulated Molecular Wire

Gabor Mehes, Chengjun Pan, Fatima Bencheikh, Zhao Li, Kazunori Sugiyasu, Masayuki Takeuchi, Jean-Charles Ribierre, and Chihaya Adachi, ACS Macro Lett. 5, 781-785 (2016)
DOI: 10.1021/acsmacrolett.6b00205

[48] Improvement of the quasi-continuous-wave lasing properties in organic semiconductor lasers using oxygen as triplet quencher

Atula S.D. Sandanayaka, Li Zhao, Delphine Pitrat, Jean-Christophe Mulatier, Toshinori Matsushima, Chantal Andraud, Ju-Hyung Kim, Jean-Charles Ribierre, and Chihaya Adachi, Appl. Phys. Lett. 108, 223301 (2016)
DOI: 10.1063/1.4952970

[47] Silicon based near infrared photodetector using self-assembled organic crystalline nano-pillars

Yoshiharu Ajiki, Tetsuo Kan, Masayuki Yahiro, Akiko Hamada, Junji Adachi, Chihaya Adachi, Kiyoshi Matsumoto, and Isao Shimoyama, Appl. Phys. Lett. 108, 151102 (2016)
DOI: 10.1063/1.4945690

[46] Low amplified spontaneous emission threshold and suppression of electroluminescence efficiency roll-off in layers doped with ter(9,9'-spirobifluorene)

Munetomo Inoue, Toshinori Matsushima, and Chihaya Adachi, Appl. Phys. Lett. 108, 133302 (2016)
DOI: 10.1063/1.4945596

[45] Benzimidazobenzothiazole-based Bipolar Hosts to Harvest Nearly All Excitons in Blue Delayed Fluorescence and Phosphorescent Organic Light-Emitting Diodes

Lin-Song Cui, Jong Uk Kim, Hiroko Nomura, Hajime Nakanotani, and Chihaya Adachi, Angew. Chem. Int. Ed. 55, 6864-6868 (2016)
DOI: 10.1002/anie.201601136

[44] Long-lived Room-Temperature Phosphorescence of Coronene in Zeolitic Imidazolate Framework ZIF-8

Hiroyuki Mieno, Ryota Kabe, Naoto Notsuka, Mark D. Allendorf, and Chihaya Adachi, Adv. Opt. Mater., 2016 (in press)
DOI: 10.1002/adom.201600103

[43] Highly efficient solution-processed host-free organic light-emitting diodes showing an external quantum efficiency of nearly 18% with a thermally activated delayed fluorescence emitte

Yoshimasa Wada, Katsuyuki Shizu, Shosei Kubo, Tatsuya Fukushima, Takuya Miwa, Hiroyuki Tanaka, Chihaya Adachi, and Hironori Kaji, Appl. Phys. Exp. 9, 032102 (2016)
DOI: 10.7567/APEX.9.032102

[42] Long-range coupling of electron-hole pairs in spatially separated organic donor-acceptor layers

Hajime Nakanotani, Taro Furukawa, Kei Morimoto, and Chihaya Adachi, Sci. Adv. 2, e1501470, 2016
DOI: 10.1126/sciadv.1501470

[41] Quasi-Continuous-Wave Organic Thin-film Distributed Feedback Laser

Atula S. D. Sandanayaka, Kou Yoshida, Munetomo Inoue, Chuanjiang Qin, Kenichi Goushi, Jean-Charles Ribierre, Toshinori Matsushima, and Chihaya Adachi, Adv. Opt. Mater. 4, 834-839 (2016)
DOI: 10.1002/adom.201600006

[40] Effect of Joule heating on transient current and electroluminescence in p-i-n organic light-emitting diodes under pulsed voltage operation

Kou Yoshida, Hajime Nakanotani, and Chihaya Adachi, Org. Electron. 31, 287-294 (2016)
DOI: 10.1016/j.orgel.2016.01.033

[39] Quantification of temperature rise in unipolar organic conductors during short voltage-pulse excitation using electrical testing methods

Kou Yoshida, Toshinori Matsushima, Hajime Nakanotani, and Chihaya Adachi, Org. Electron. 31, 191-197 (2016)
DOI: 10.1016/j.orgel.2016.01.033

[38] Current Enhancement in Organic Films through Gap Compression by Cold and Hot Isostatic Pressing

Yu Esaki, Toshinori Matsushima, and Chihaya Adachi, Adv. Funct. Mater. 26, 2940-2949 (2016)
DOI: 10.1002/adfm.201505190

[37] Photophysical Properties and Efficient Stable Electrogenerated Chemiluminescence of Donor-Acceptor Molecules Exhibiting Thermal Spin Up-Conversion

Ryoichi Ishimatsu, Tomohiko Edura, Chihaya Adachi, Koji Nakano, and Toshihiko Imato, Chem. Eur. J. 22, 4889-4898 (2016)
DOI: 10.1002/chem.201600077

[36] Processing and doping of thick polymer active layers for flexible organic thermoelectric modules

Sunbin Hwang, William J. Potscavage, Ryosuke Nakamichi, and Chihaya Adachi, Org. Electron. 31, 31-40 (2016)
DOI: 10.1016/j.orgel.2016.01.007

[35] Low threshold amplified spontaneous emission and ambipolar charge transport in highly fluorescent non-volatile solvent-free liquid fluorene derivatives

Jean-Charles Ribierre, Li Zhao, Munetomo Inoue, Pierre-Olivier Schwartz, Ju-Hyung Kim, Kou Yoshida, Atula S. D. Sandanayaka, Hajime Nakanotani, Loic Mager, Stephane Mery, and Chihaya Adachi, Chem. Commun. 52, 3103-3106 (2016)
DOI: 10.1039/c5cc08331a

[34] Effect of reverse intersystem crossing rate to suppress efficiency roll-off in organic light-emitting diodes with thermally activated delayed fluorescence emitters

Munetomo Inoue, Tomas Serevicius, Hajime Nakanotani, Kou Yoshida, Toshinori Matsushima, Saulius Jursenas, and Chihaya Adachi, Chem. Phys. Lett. 644, 62-67 (2016)
DOI: 10.1016/j.cplett.2015.11.042

[33] Degradation Mechanisms of Solution-Processed Planar Perovskite Solar Cells: Thermally Stimulated Current Measurement for Analysis of Carrier Traps

Chuanjiang Qin, Toshinori Matsushima, Takashi Fujihara, William J. Potscavage, Jr., and Chihaya Adachi, Adv. Mater. 28, 466-471 (2016)
DOI: 10.1002/adma.201502610

[32] Afterglow Organic Light-Emitting Diode

Ryota Kabe, Naoto Notsuka, Kou Yoshida, and Chihaya Adachi, Adv. Mater. 28, 655-660 (2016)
DOI: 10.1002/adma.201504321

[31] Improvement of the light outcoupling efficiency of organic light-emitting diodes using a hemispherical lens and a multi-patterned one-dimensional photonic crystal fabricated by autocloning

Hiroshi Fujimoto, Masayuki Yahiro, Takayuki Kawashima, Keisuke Konno, Qiang Chen, Kunio Sawaya, Shojiro Kawakami, and Chihaya Adachi, Appl. Phys. Exp. 8, 082102 (2015)
DOI: 10.7567/APEX.8.082102

[30] Singlet-triplet exciton annihilation nearly suppressed in organic semiconductor laser materials using oxygen as triplet quencher

Li Zhao, Munetomo Inoue, Kou Yoshida, Atula S. D. Sandanayaka, Ju-Hyung Kim, Jean-Charles Ribierre, and Chihaya Adachi, IEEE J. Sel. Top. Quantum Electron. 22 1300409 (2015)
DOI: 10.1109/JSTQE.2015.2473138

[29] Degradation Mechanisms of Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence Molecules

Atula S. D. Sandanayaka, Toshinori Matsushima, and Chihaya Adachi, J. Phys. Chem. C 119, 23845-23851 (2015)
DOI: 10.1021/acs.jpcc.5b07084

[28] Purely organic electroluminescent material realizing 100% conversion from electricity to light

Hironori Kaji, Hajime Suzuki, Tatsuya Fukushima, Katsuyuki Shizu, Katsuaki Suzuki, Shosei Kubo, Takeshi Komino, Hajime Oiwa, Furitsu Suzuki, Atsushi Wakamiya, Yasujiro Murata, and Chihaya Adachi, Nat. Commun. 6, 8476 (2015)
DOI: 10.1038/ncomms9476

[27] Highly Efficient Blue Electroluminescence Using Delayed-Fluorescence Emitters with Large Overlap Density between Luminescent and Ground States

Katsuyuki Shizu, Hiroki Noda, Hiroyuki Tanaka, Masatsugu Taneda, Motoyuki Uejima, Tohru Sato, Kazuyoshi Tanaka, Hironori Kaji, and Chihaya Adachi, J. Phys. Chem. C 119, 26283-26289 (2015)
DOI: 10.1021/acs.jpcc.5b07798

[26] Vacuum-and-solvent-free fabrication of organic semiconductor layers for field-effect transistors

Toshinori Matsushima, Atula S. D. Sandanayaka, Yu Esaki, and Chihaya Adachi, Sci. Rep. 5, 14547 (2015)
DOI: 10.1038/srep14547

[25] Suppression of external quantum efficiency roll-off of nanopatterned organic-light emitting diodes at high current densities

Hiroyuki Kuwae, Atsushi Nitta, Kou Yoshida, Takashi Kasahara, Toshinori Matsushima, Munetomo Inoue, Shuichi Shoji, Jun Mizuno, and Chihaya Adachi, J. Appl. Phys. 118, 155501 (2015)
DOI: 10.1063/1.4932139

[24] Morphological control of organic?inorganic perovskite layers by hot isostatic pressing for efficient planar solar cells

Toshinori Matsushima, Takashi Fujihara, Chuanjiang Qin, Shinobu Terakawa, Yu Esaki, Sunbin Hwang, Atula S. D. Sandanayaka, William J. Potscavage, Jr., and Chihaya Adachi, J. Mater. Chem. A 3, 17780-17787 (2015)
DOI: 10.1039/C5TA03796D

[23] High-efficiency sky-blue organic light-emitting diodes utilizing thermally-activated delayed fluorescence

Yasuhide Hiraga, Jun-ichi Nishide, Hajime Nakanotani, Masaki Aonuma, and Chihaya Adachi, IEICE Trans. Electron. E98.C, 971-976 (2015)
DOI: 10.1587/transele.E98.C.971

[22] Light amplification in an organic solid-state film with the aid of triplet to singlet upconversion

Hajime Nakanotani, Taro Furukawa, and Chihaya Adachi, Adv. Opt. Mater. 3, 1381-1388 (2015)
DOI: 10.1002/adom.201500236

[21] Highly efficient electroluminescence from purely organic donor-acceptor systems

Katsuyuki Shizu, Jiyoung Lee, Hiroyuki Tanaka, Hiroko Nomura, Takuma Yasuda, Hironori Kaji, and Chihaya Adachi, Pure Appl. Chem 87, 627-638 (2015)
DOI: 10.1515/pac-2015-0301

[20] High efficiency pure blue thermally activated delayed fluorescence molecules having 10H-phenoxaborin and acridan units

Masaki Numata, Takuma Yasuda, and Chihaya Adachi, Chem. Commun. 51, 9443 (2015)
DOI: 10.1039/C5CC00307E

[19] Exciton Quenching Behavior of Thermally Activated Delayed Fluorescence Molecules by Charge Carriers

Atula Sandanayaka, Kou Yoshida, Toshinori Matsushima, and Chihaya Adachi, J. Phys. Chem. C, 119, 7631-7636 (2015)
DOI: 10.1021/acs.jpcc.5b01314

[18] Dual enhancement of electroluminescence efficiency and operational stability by rapid upconversion of triplet excitons in OLEDs

Taro Furukawa, Hajime Nakanotani, Munetomo Inoue, and Chihaya Adachi, Sci. Rep. 5, 8429 (2015)
DOI: 10.1038/srep08429

[17] High efficiency thermally activated delayed fluorescence based on 1,3,5-tris(4-(diphenylamino) phenyl)-2,4,6-tricyanobenzene

Masatsugu Taneda, Katsuyuki Shizu, Hiroyuki Tanaka, and Chihaya Adachi, Chem. Commun. 51, 5028 (2015)
DOI: 10.1039/C5CC00511F

[16] Introduction of Oxygen into Organic Thin Films with the Aim of Suppressing Singlet-Triplet Annihilation

Munetomo Inoue, Toshinori Matsushima, Hajime Nakanotani, and Chihaya Adachi, Chem. Phys. Lett. 624, 43-46 (2015)
DOI: 10.1016/j.cplett.2015.02.010

[15] Horizontal molecular orientation in solution-processed organic light-emitting diodes

Zhao Li, Takeshi Komino, Munetomo Inoue, J.-H. Kim, Jean-Charles Ribierre, and Chihaya Adachi, Appl. Phys. Lett. 106, 063301 (2015)
DOI: 10.1063/1.4907890

[14] High-efficiency White Organic Light-emitting Diodes based on a Blue Thermally Activated Delayed Fluorescent Emitter Combined with Green and Red Fluorescent Emitters

Takahiro Higuchi, Hajime Nakanotani, and Chihaya Adachi, Adv. Mater. 27, 2019-2023 (2015)
DOI: 10.1002/adma.201404967

[13] Nearly 100% Internal Quantum Efficiency in Undoped Electroluminescent Devices Employing Pure Organic Emitters

Qisheng Zhang, Daniel Tsang, Hirokazu Kuwabara, Yasuhiro Hatae, Bo Li, Takehiro Takahashi, Sae Youn Lee, Takuma Yasuda, and Chihaya Adachi, Adv. Mater. 27, 2096-2100 (2015)
DOI: 10.1002/adma.201405474

[12] Tunable and flexible solvent-free liquid organic distributed feedback lasers

Ju-Hyung Kim, Munetomo Inoue, Li Zhao, Takeshi Komino, Soonmin Seo, Jean-Charles Ribierre, and Chihaya Adachi, Appl. Phys. Lett. 106, 053302 (2015)
DOI: 10.1063/1.4907323

[11] Suppression of roll-off characteristics of organic light-emitting diodes by narrowing current injection/transport area to 50 nm

Kyohei Hayashi, Hajime Nakanotani, Munetomo Inoue, Kou Yoshida, Oleksandr Mikhnenko, Thuc-Quyen Nguyen, and Chihaya Adachi, Appl. Phys. Lett. 106, 093301 (2015)
DOI: 10.1063/1.4913461

[10] Zinc complexes exhibiting highly efficient thermally activated delayed fluorescence and their application to organic light-emitting diodes

Yumi Sakai, Yuta Sagara, Hiroko Nomura, Nozomi Nakamura, Yoshitake Suzuki, Hiroshi Miyazaki, and Chihaya Adachi, Chem. Commun. 15, 3181-3184 (2015)
DOI: 10.1039/C4CC09403D

[9] Enhanced Electroluminescence from a Thermally Activated Delayed Fluorescence Emitter by Suppressing Non-radiative Decay

Katsuyuki Shizu, Motoyuki Uejima, Hiroko Nomura, Tohru Sato, Kazuyoshi Tanaka, Hironori Kaji, and Chihaya Adachi, Phys. Rev. Appl. 3, 014001 (2015)
DOI: 10.1103/PhysRevApplied.3.014001

[8] Strategy for Design Electron Donors for Thermally Activated Delayed Fluorescence Emitters

Katsuyuki Shizu, Hiroyuki Tanaka, Motoyuki Uejima, Tohru Sato, Kazuyoshi Tanaka, Hironori Kaji, and Chihaya Adachi, J. Phys. Chem. C 119, 1291-1297 (2015)
DOI: 10.1021/jp511061t

[7] Highly Efficient Thermally Activated Delayed Fluorescence Emitters with Small Singlet-Triplet Energy Gap and Large Oscillator Strength

Yuta Sagara, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroshi Miyazaki, Kenichi Goushi, Hironori Kaji, and Chihaya Adachi, Chem. Lett. 44, 360-362 (2015)
DOI: 10.1246/cl.141054

[6] Enhancement of the electrical characteristics of metal-free phthalocyanine films using cold isostatic pressing

Toshinori Matsushima, Yu Esaki, and Chihaya Adachi, Appl. Phys. Lett. 105, 243301 (2014)
DOI: 10.1063/1.4904463

[5] 熱活性化遅延蛍光材料による高効率有機ELデバイス

中野谷一、安達千波矢、Journal of the Vacuum Society of Japan, Vol. 58 (2015), No. 3 p. 73-78

[4] Meta-linking Strategy for Thermally Activated Delayed Fluorescence Emitters with a Small Singlet-Triplet Energy Gap

Katsuyuki Shizu, Yumi Sakai, Hiroyuki Tanaka, Shuzo Hirata, Chihaya Adachi, and Hironori Kaji, ITE Transactions on Media Technology and Applications 3, 108-113 (2015)

[3] A New Route of Triplet Harvesting for High-Efficiency Organic Light-Emitting Diodes

Hajime NAKANOTANI, and Chihaya ADACHI, 日本画像学会誌 Vol. 53 (2014) No. 6 p. 509-516

[2] Organic Light-Emitting Transistors for Next-Generation Photonic Devices

Hajime NAKANOTANI, and Chihaya ADACHI, Journal of the Japan Society of Colour Material, 87, 2014, No. 12 p. 436-441

[1] 熱活性化遅延蛍光過程を利用した高性能蛍光有機EL素子

中野谷一、安達千波矢、日本写真学会誌 77巻 4号 296-300

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