2025

88.A high gain, low loss, and low-threshold spherical organic laser based on highly miscible excited-state intramolecular proton transfer dyes
Shunya Aoyagi, Toshiya Omori, Tsukasa Kawamura, Tsuneaki Sakurai, Masaki Shimizu, Kenichi Yamashita, Yuki Nagai, Yoichi Kobayashi, Yohei Yamamoto, Hiroshi Yamagishi
Chem. Commun.2025, Advance Article. DOI:10.1039/D4CC06784C



87.Photochromic Color Tuning of Copper-doped Zinc Sulfide Nanocrystals by Control of Local Dopant Environments
Mayu Kimura, Daisuke Yoshioka, I-Ya Chang, Akinori Irizawa, Daisuke Shibata, Shin Imada, Yoichi Kobayashi
Angew. Chem. Int. Ed.2025, Early View. DOI:10.1002/anie.202423776



86.Zwitterionic π-electronic system based on porphyrin Au^III complex
Hiromitsu Maeda, Naoya Hiraishi, Yohei Haketa, Yoichi Kobayashi, Yukihide Ishibashi, Tsuyoshi Asahi, and Nobuhiro Yasuda
J. Porphyrins Phthalocyanines2025, 29, 206–212. DOI:10.1142/S1088424625500154



85.Synthesis of fully fused tetrapyrazinoporphyrazine polymers bearing three-dimensional structures controlled by steric repulsion
Kosuke Watanabe, Teruki Toya, Yuto Toyota, Yoichi Kobayashi, Junichi Usuba, Yuh Hijikata, Ryotaro Matsuda, Katsuyuki Nishimura, Haruki Sugiyama, Yasutomo Segawa
Chem. Commun.2025, 61, 2822–2825. DOI:10.1039/D4CC06293K



84.Optimizing photochromic reactions of hydrophobic copper-doped zind sulfide nanocrystals
Mayu Kimura, Daisuke Yoshioka, Kaori Matsuhiro, Yoichi Kobayashi
Jpn. J. Appl. Phys.2025, 64, 02SP07. DOI:10.35848/1347-4065/ada9f4

2024

83.Unraveling Photoinduced Desorption Dynamics of π-Conjugated Ligands in ZnS Nanocrystals via Pump–Push–Probe Spectroscopy
Daisuke Yoshioka, Jessica M. de la Perrelle, Andrew Dolan, Zi Goh, Tak W. Kee, Yoichi Kobayashi
J. Phys. Chem. Lett. 2024, 15, 12370–12375. DOI:10.1021/acs.jpclett.4c03260



82.Relaxation dynamics of higher excited states of perylene-substituted perylene bisimide derivatives
Yoichi Kobayashi, Daiki Fukuda, Yoshinori Okayasu, Yuki Nagai
J. Chem. Phys.2024, 161, 034308. DOI:10.1063/5.0205882



81.A Hexaarylbiimidazole-Terarylene Hybrid: Visible-to-NIR-II Absorption via Sequential Photochromic Reactions
Katsuya Mutoh, Yoichi Kobayashi, Takuya Nakashima
Angew. Chem. Int. Ed.2024, 63, e202410115. DOI:10.1002/anie.202410115



80.Multiphoton-driven Photocatalytic Defluorination of Persistent Perfluoroalkyl Substances and Polymers by Visible Light
Yuzo Arima, Yoshinori Okayasu, Daisuke Yoshioka, Yuki Nagai, Yoichi Kobayashi
Angew. Chem. Int. Ed.2024, 63, e202408687. DOI:10.1002/anie.202408687
(Selected as Journal Inside Cover!!)



79.Photodoping-based broadband photochromism of semiconductor nanocrystals under air operated by a supramolecular gel
Yuki Nakai, Yuki Nagai, Yoshinori Okayasu, Yoichi Kobayashi
Chem. Commun.2024, 60, 6492–6495. DOI:10.1039/D4CC01854K
(Selected as Journal Inside Front Cover!!)



78.A Nonlinear Photochromic Reaction Based on Sensitizer-Free Triplet-Triplet Annihilation in a Perylene-Substituted Rhodamine Spirolactam
Genki Kawai, Yuki Nagai, Kanna Tsuji, Yoshinori Okayasu, Jiro Abe, Yoichi Kobayashi
Angew. Chem. Int. Ed.2024, 63, e202404140. DOI:10.1002/anie.202404140
(Selected as Journal Cover Picture!!)



77. Effect of the bulkiness of alkyl ligands on the excited-state dynamics of ZnO nanocrystals
Yuto Toyota, Masahiko Sagawa, Shohei Yamashita, Yoshinori Okayasu, Yuki Nagai, Yohei Okada, and Yoichi Kobayashi
RSC Adv.2024, 14, 2796–2803. DOI:10.1039/D3RA05166H



76.Photochromic Clock Reaction of Anthraquinone in Supramolecular Gel and Its Application to Spatiotemporal Patterning
Sota Fujisaki, Yuki Nagai, Yoshinori Okayasu, and Yoichi Kobayashi
Mater. Adv.2024,5, 1468–1472. DOI:10.1039/D3MA00821E

2023

75.Unraveling Steric Effects on Ultrafast Bond-Dissociation Processes of Photochromic Radical Complexes
Tomoya Seri, Yoshinori Okayasu, Yuki Nagai, Jiro Abe, and Yoichi Kobayashi
J. Phys. Chem. Lett.2023, 14, 11474–11479. DOI:10.1021/acs.jpclett.3c03232



74.Photochromic dinuclear iridium(iii) complexes having phenoxyl-imidazolyl radical complex derivatives
Yoshinori Okayasu, Takuya Miyahara, Rintaro Shimada, Yuki Nagai, Akira Sakamoto, Jiro Abe and Yoichi Kobayashi
Chem. Commun.2023, 59, 8850–8853. DOI:10.1039/D3CC02208K



73.Ion-Pairing Assemblies of Dithienylnitrophenol-Based π-Electronic Anions Stabilized by Intramolecular Interactions
Miyu Yokoyama, Yoshinori Okayasu, Yoichi Kobayashi, Hiroki Tanaka, Yohei Haketa, and Hiromitsu Maeda
Org. Lett.2023, 25, 3676–3681. DOI:10.1021/acs.orglett.3c01075



72.Quasi-Reversible Photoinduced Displacement of Aromatic Ligands from Semiconductor Nanocrystals
Daisuke Yoshioka, Yusuke Yoneda, I-Ya Chang, Hikaru Kuramochi, Kim Hyeon-Deuk, and Yoichi Kobayashi
ACS Nano2023, 17, 11309–11317. DOI:10.1021/acsnano.2c12578
(Selected as Supplementary Journal Cover!!)



71.Substituent-Dependent Photoexcitation Processes of π-Stacked Ion Pairs
Wataru Ishii, Yoshinori Okayasu, Yoichi Kobayashi, Rika Tanaka, Shohei Katao, Yoshiko Nishikawa, Tsuyoshi Kawai, and Takuya Nakashima
J. Am. Chem. Soc.2023, 145, 11236–11244. DOI:10.1021/jacs.3c01259



70.Substituent-Dependent Photoexcitation Processes of π-Stacked Ion Pairs
Hiroki Tanaka, Yoshinori Okayasu, Yoichi Kobayashi, Hiromitsu Maeda
Chem. Eur. J.2023, 29, e2022039. DOI:10.1002/chem.202203957

2022

69.π-Stacked Ion Pairs: Tightly Associated Charged Porphyrins in Ordered Arrangement Enabling Radical-Pair Formation
Hiroki Tanaka, Yoichi Kobayashi, Ko Furukawa, Yoshinori Okayasu, Shigehisa Akine, Nobuhiro Yasuda, and Hiromitsu Maeda
J. Am. Chem. Soc.2022, 144, 21710–21718. DOI:10.1021/jacs.2c09589



68.Harnessing infrared solar energy with plasmonic energy upconversion
Zichao Lian, Yoichi Kobayashi, Junie Jhon M. Vequizo, Chandana Sampath Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Katsuaki Kobayashi, Koji Tanaka, Toshiharu Teranishi and Masanori Sakamoto
Nat. Sustain.2022, 5, 1092–1099. DOI:10.1038/s41893-022-00975-9



67.Near-Infrared-Light Triggered Electron Transfer from Ag2S Nanocrystals to Perylene Bisimide
Yuki Nagai, Tadashi Watanabe, Daisuke Yoshioka, Yoshinori Okayasu, Naoto Tamai, Yoichi Kobayashi
ECS J. Solid State Sci. Technol.2022, 11, 101001. DOI: 10.1149/2162-8777/ac93b2



66. Photochromism of colloidal ZnO nanocrystal powders under ambient conditions
Hiroki Ito, Daisuke Yoshioka, Morihiko Hamada, Tsubasa Okamoto, Yasuhiro Kobori, Yoichi Kobayashi
Photochem. Photobiol. Sci.2022, 21, 1781–1791. DOI: 10.1007/s43630-022-00256-6



65. Electron-donating curved π-electronic systems that complex with buckyball
Hiromitsu Maeda, Taichi Abiko, Yohei Haketa, Yoichi Kobayashi, Yukihide Ishibashi, Tsuyoshi Asahi and Nobuhiro Yasuda
Phys. Chem. Chem. Phys.2022, 24, 13286–13292. DOI: 10.1039/D2CP01575G



64. A Photochromic Carbazolyl-Imidazolyl Radical Complex
Yasuki Kawanishi, Yasutomo Segawa, Katsuki Mutoh, Jiro Abe and Yoichi Kobayashi
Chem. Commun.2022, 58, 4997–5000. DOI: 10.1039/D2CC01196D



63.Recent advances in low-power-threshold nonlinear photochromic materials
Yoichi Kobayashi and Jiro Abe
Chem. Soc. Rev. 2022, 51, 2397–2415. DOI: 10.1039/d1cs01144h

62. Excited-state dynamics of dipyrrolyldiketone difluoroboron complexesRyota Sato, Hajime Okajima, Shinya Sugiura, Yohei Haketa, Yusuke Kinoshita, Hitoshi Tamiaki, Akira Sakamoto, Hiromitsu Maeda, Yoichi Kobayashi,
Phys. Chem. Chem. Phys.2022, 24, 1685–1691. DOI: 10.1039/d1cp04804j

2021

61. Origin of the Anomalous Temperature Dependence of the Photochromic Reaction of Cu-Doped ZnS Nanocrystals
Yusuke Sanada, Daisuke Yoshioka, Yoichi Kobayashi
J. Phys. Chem. Lett., 2021, 12, 8129–8133. https://doi.org/10.1021/acs.jpclett.1c02386
(Selected as Supplementary Journal Cover!!)
sese


60. Dynamic spin-spin interaction observed as interconversion of chemical bonds in stepwise two-photon induced photochromic reaction
Katsuya Mutoh, Shota Toshimitsu, Yoichi Kobayashi, Jiro Abe
J. Am. Chem. Soc., 2021, 143, 13917–13928. https://doi.org/10.1021/jacs.1c06775



59. Ion-pairing π-electronic systems: ordered arrangement and noncovalent interactions of negatively charged porphyrins
Yoshifumi Sasano, Hiroki Tanaka, Yohei Haketa, Yoichi Kobayashi, Yukihide Ishibashi, Tatsuki Morimoto, Ryuma Sato, Yasuteru Shigeta, Nobuhiro Yasuda, Tsuyoshi Asahi, Hiromitsu Maeda
Chem. Sci., 2021, 12, 9645-9657. https://doi.org/10.1039/D1SC02260A



58. Dipyrrolyldiketone PtII Complexes: Ion-Pairing π-Electronic Systems with Various Anion-Binding Modes
Atsuko Kuno, Goki Hirata, Hiroki Tanaka, Yoichi Kobayashi,Nobuhiro Yasuda,Hiromitsu Maeda
Chem. Euro. J.,2021, 27, 10068– 10076. https://doi.org/10.1002/chem.202100855
(Selected as Journal Cover!!)



57.Extending the lifetimes of charge transfer states generated by photoinduced heterolysis of photochromic radical complexes
Yasuki Kawanishi, Katsuya Mutoh, Jiro Abe, Yoichi Kobayashi
Asian J. Org. Chem. 2021, 10, 891–900. DOI:10.1002/ajoc.202100032



56. Fast T-Type Photochromism of Colloidal Cu-Doped ZnS Nanocrystals
Yulian Han, Morihiko Hamada, I-Ya Chang, Kim Hyeon-Deuk, Yasuhiro Kobori, Yoichi Kobayashi
J. Am. Chem. Soc. 2021, 143, 5, 2239–2249. DOI:10.1021/jacs.0c10236.
(Selected as Supplementary Journal Cover!!)



55. Green and Far-Red-Light Induced Electron Injection from Perylene Bisimide to Wide Bandgap Semiconductor Nanocrystals with Stepwise Two-Photon Absorption Process
Daisuke Yoshioka, Daiki Fukuda, Yoichi Kobayashi
Nanoscale 2021, 13, 1823-1831. DOI: 10.1039/D0NR08493J.

2020

54.Self-Associating Curved π-Electronic Systems with Electron-Donating and Hydrogen-Bonding Properties
Yohei Haketa, Mika Miyasue, Yoichi Kobayashi, Ryuma Sato, Yasuteru Shigeta, Nobuhiro Yasuda, Naoto Tamai, Hiromitsu Maeda
J. Am. Chem. Soc. 2020, 142, 16420–16428. DOI: 10.1021/jacs.0c07751
(Selected as Supplementary Journal Cover!!)



53.Photochromic Radical Complexes That Show Heterolytic Bond DissociationRyosuke Usui, Katsuya Yamamoto, Hajime Okajima, Katsuya Mutoh, Akira Sakamoto, Jiro Abe, Yoichi Kobayashi
J. Am. Chem. Soc.2020, 142, 10132–10142., DOI: 10.1021/jacs.0c02739
(Selected as Supplementary Journal Cover!!)


52.Two-Dimensional Electronic Spectroscopy Using Rotating Optical Flats
Patrick C. Tapping, Yin Song, Yoichi Kobayashi, Gregory D. Scholes, Tak W. Kee
J. Phys. Chem. A,2020, 124, 1053–1061. DOI: 10.1021/acs.jpca.0c00285

2019

51. Excited state dynamics for visible-light sensitization of a photochromic benzil-substituted phenoxyl-imidazolyl radical complexes
Yoichi Kobayashi, Yukie Mamiya, Katsuya Mutoh, Hikaru Sotome, Masafumi Koga, Hiroshi Miyasaka, Jiro Abe
Beilstein J. Org. Chem., 2019, 15, 2369-2379.


50.Anomalous Photoinduced Hole Transport in Type I Core/Mesoporous-Shell Nanocrystals for Efficient Photocatalytic H2 Evolution Zichao Lian, Masanori Sakamoto, Yoichi Kobayashi, Naoto Tamai, Jun Ma, Tsuneaki Sakurai, Shu Seki, Tatsuo Nakagawa, Ming-Wei Lai, Mitsutaka Haruta, Hiroki Kurata, Toshiharu Teranishi
ACS Nano, 2019, 13, 8356-8363.


49. Multiply aryl-substituted dipyrrolyldiketone boron complexes exhibiting anion-responsive emissive properties"Shinya Sugiura, Yoichi Kobayashi, Nobuhiro Yasuda, Hiromitsu Maeda
Chem. Commun.2019, 55, 8242-8245. DOI: 10.1021/10.1039/c9cc03407b


48. Molecular design to increase the photosensitivity of photochromic phenoxyl–imidazolyl radical complexes
Ruiji Li, Hiroki Arai, Yoichi Kobayashi, Katsuya Mutoh, Jiro Abe
Mater. Chem. Front.2019, 3, 2380-2387. DOI: 10.1039/C9QM00468H

47. Pyrrole-Based π-System–PtII Complexes: Chiroptical Properties and Excited-State Dynamics with Microsecond Triplet Lifetimes
Goki Hirata, Yoichi Kobayashi, Ryuma Sato, Yasuteru Shigeta, Nobuhiro Yasuda, Hiromitsu Maeda
Chem. Eur. J. 2019, 25, 8797-8804. DOI: 10.1002/chem.201900848


46. Kinetically and Thermodynamically Controlled Nanostructures of Perylene-Substituted Lophine Derivatives
Ryosuke Usui, Mitsuaki Yamauchi, Yukihide Ishibashi, Osamu Tsutsumi, Tsuyoshi Asahi, Sadahiro Masuo, Naoto Tamai, Yoichi Kobayashi
J. Phys. Chem. C, 2019, 123, 10145-10152. DOI: 10.1021/acs.jpcc.9b01391


45. Rational molecular design for controlling photochromism involving thermally‐activated valence isomerization of phenoxyl‐imidazolyl radical complexes
Shota Toshimitsu, Kentaro Shima, Katsuya Mutoh, Yoichi Kobayashi, Jiro Abe
ChemPhotoChem, 2019, DOI: 10.1002/cptc.201800243

2018

44.Plasmonic p–n Junction for Infrared Light to Chemical Energy ConversionZichao Lian, Masanori Sakamoto, Junie Jhon Magdadaro Vequizo, C.S. Kumara Ranasinghe, Akira Yamakata, Takuro Nagai, Koji Kimoto, Yoichi Kobayashi, Naoto Tamai, and Toshiharu Teranishi
J. Am. Chem. Soc.,2018, DOI: 10.1021/jacs.8b11544


43. Stepwise Two-Photon-Induced Electron Transfer from Higher Excited States of Noncovalently Bound Porphyrin-CdS/ZnS Core/Shell Nanocrystals
TakumaUno, Masafumi Koga, Hikaru Sotome, Hiroshi Miyasaka, Naoto Tamai, and Yoichi Kobayashi
J. Phys. Chem. Lett., 2018, 9, 7098-7104.
(Selected to Supplementary Journal Cover!)


42. Durian-Shaped CdS@ZnSe Core@Mesoporous-Shell Nanoparticles for Enhanced and Sustainable Photocatalytic Hydrogen Evolution Zichao Lian, Masanori Sakamoto, Yoichi Kobayashi, Naoto Tamai, Jun Ma, Tsuneaki Sakurai, Shu Seki, Tatsuo Nakagawa, Mingwei Lai, Mitsutaka Haruta, Hiroki Kurata, and Toshiharu Teranishi
J. Phys. Chem. Lett., 2018, 9, 2212-2217.


41.Stepwise two-photon absorption processes utilizing photochromic reactions
Yoichi Kobayashi, Katsuya Mutoh and Jiro Abe
J. Photochem. Photobiol., C, 2018, 34, 2-28.


40.Structurally and electronically modulated spin interaction of transient biradicals in two photon-gated stepwise photochromismIzumi Yonekawa, Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
Photochem. Photobiol. Sci., 2018, 17, 290-301.


39. Intensity-dependent photoresponse of biphotochromic molecule composed of a negative and a positive photochromic Uunits
Izumi Yonekawa, Katsuya Mutoh, Yoichi Kobayashi and Jiro AbeJ. Am. Chem. Soc.,2018, 140(3), 1091-1097.

2017

• 38. A simple and versatile strategy for rapid color fading and intense coloration of photochromic naphthopyran families
  Yuki Inagaki, Yoichi Kobayashi, Katsuya Mutoh and Jiro Abe
  J. Am. Chem. Soc., 2017, 139(38), 13429-13441.
  
• 
• 
  37. Direct observation of the ultrafast evolution of open-shell biradical in photochromic radical dimer
  Yoichi Kobayashi, Hajime Okajima, Hikaru Sotome, Takeshi Yanai, Katsuya Mutoh, Yusuke Yoneda, Yasuteru Shigeta, Akira Sakamoto, Hiroshi Miyasaka and Jiro Abe,
  J. Am. Chem. Soc., 2017, 139(18), 6382-6389.
  
• 
  36.Highly durable photochromic radical complexes having no steric protections of radicals
  Yoichi Kobayashi, Yasuhiro Mishima, Katsuya Mutoh and Jiro Abe
  Chem. Commun., 2017, 53, 4315-4318.
  
• 
• 
  35. Rate-tunable stepwise two-photon-gated photoresponsive systems employing a synergetic interaction between transient biradical units
  Katsuya Mutoh, Yoichi Kobayashi, Takuya Yamane, Takahiro Ikezawa and Jiro Abe
  J. Am. Chem. Soc., 2017, 139(12), 4452-4461.
  
• 
  34. Disclosing whole reaction pathways of photochromic 3H-naphthopyrans with fast color fading
  Sabina Brazevic, Michel Sliwa, Yoichi Kobayashi, Jiro Abe and Gotard Burdzinski
  J. Phys. Chem. Lett., 2017, 8, 909-914.
  
• 
  33. Polymorphs of a diarylethene that exhibits strong emission and direct visualization of polymorphic phase transition process by fluorescence color change
  Daichi Kitagawa, Tatsumoto Nakahama, Katsuya Mutoh, Yoichi Kobayashi, Jiro Abe, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka and Seiya Kobatake
  Dyes Pigm., 2017, 139, 233-238.
  
• 
  32. Efficient coloration and decoloration reactions of fast photochromic 3H-naphthopyrans in PMMA-b-PBA block copolymer
  Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
  Dyes Pigm., 2017, 137, 307-311.
•  

• [2016年]

• 31. Fast photochromic molecules toward realization of photosynergetic effects
  Yoichi Kobayashi, Katsuya Mutoh and Jiro Abe
  J. Phys. Chem. Lett., 2016, 7(18), 3666-3675. (Perspective)
• 
  30.Structure-tuned lead halide perovskite nanocrystals
  Yasser Hassan, Yin Song, Ryan D. Pensack, Ahmed I. Abdelrahman, Yoichi Kobayashi, Mitchell A. Winnik and Gregory D. Scholes
  Adv. Mater., 2016, 28, 566-573.
• 
  29. Fast photochromism involving thermally-activated valence isomerization of phenoxyl-imidazolyl radical complex derivatives
  Yoichi Kobayashi, Kentaro Shima, Katsuya Mutoh and Jiro Abe
  J. Phys. Chem. Lett., 2016,7(16), 3067-3072.
• 28.Turn-on mode fluorescence photoswitching of diarylethene single crystals
  Masakazu Morimoto, Ryota Kashihara, Katsuya Mutoh, Yoichi Kobayashi, Jiro Abe, Hikaru Sotome, Syoji Ito, Hiroshi Miyasaka and Masahiro Irie
  CrystEngComm, 2016, 18(38), 7241-7248.
• 27.Real-time dynamic hologram of a 3D object with fast photochromic molecules
  Yoichi Kobayashi and Jiro Abe
  Adv. Optical Mater., 2016, 4(9), 1354-1357. (Invited Paper)
• 26. Stealth fast photoswitching of negative photochromic naphthalene-bridged phenoxyl-imidazolyl radical complexesKatsuya Mutoh, Yoichi Kobayashi, Yasukazu Hirao, Takashi Kubo and Jiro Abe Chem. Commun., 2016, 52(41), 6797-6800.
• 25.Stepwise two-photon induced fast photoswitching via electron transfer in higher excited states of photochromic imidazole dimer
  Yoichi Kobayashi, Tetsuro Katayama, Takuya Yamane, Kenji Setoura, Syoji Ito, Hiroshi Miyasaka and Jiro Abe
  J. Am. Chem. Soc., 2016, 138(18), 5930-5938.
• 24. Thiophene-substituted phenoxyl-imidazolyl radical complexes with high photosensitivity
  Takahiro Ikezawa, Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
  Chem. Commun.,2016,52(12), 2465-2468.
  This paper has been selected for the front cover for its important insights.Front cover
• 23.Fast negative photochromism of 1,1’-binaphthyl-bridged phenoxyl-imidazolyl radical complex
  Tetsuo Yamaguchi, Yoichi Kobayashi and Jiro Abe
  J. Am. Chem. Soc., 2016, 138(3), 906-913.
• 
  

• [2015年]

• 22.Self-contained photoacid generator triggered by photocyclization of triangle terarylene backbone
  Takuya Nakashima, Kenta Tsuchie, Rui Kanazawa, Ruiji Li, Shunsuke Iijima, Olivier Galangau, Hisako Nakagawa, Katsuya Mutoh, Yoichi Kobayashi, Jiro Abe and Tsuyoshi Kawai
  J. Am. Chem. Soc., 2015, 137(22), 7023-7026.
  This paper has been selected for JACS spotlights for its important insights. J. Am. Chem. Soc., 2015,137(22), 6973-6974.
• 21.Stepwise two-photon-gated photochemical reaction in photochromic [2.2]paracyclophane-bridged bis(imidazole dimer)
  Katsuya Mutoh, Yuki Nakagawa, Akira Sakamoto, Yoichi Kobayashi and Jiro Abe
  J. Am. Chem. Soc., 2015, 137(17), 5674-5677.
• 20.Photochromic phenoxyl-imidazolyl radical complexes with decoloration rates from tens of nanoseconds to seconds
  Hiroaki Yamashita, Takahiro Ikezawa, Yoichi Kobayashi and Jiro Abe
  J. Am. Chem. Soc., 2015, 137(15), 4952-4955.
• 19.Photo-control of the thermal radical recombination reaction: Photochromism of an azobenzene-bridged imidazole dimerKatsuya Mutoh, Hiroki Arai, Yoichi Kobayashi and Jiro Abe Pure Appl. Chem., 2015, 87(6), 511-523. (Invited Paper)
• 18.Relationship between activation volume and polymer matrix effects on photochromic performance: Bridging molecular parameter to environmental effect
  Kentaro Shima, Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
  J. Phys. Chem. A, 2015,119(7), 1087-1093.
• 17.Rational molecular design for drastic acceleration of color-fading speed of photochromic naphthopyrans
  Katsutoshi Arai, Yoichi Kobayashi and Jiro Abe
  Chem. Commun., 2015,51(15), 3057-3060.
  This paper has been selected for the outside back cover for its important insights.Outside back cover
• 16.Nanosecond photochromic molecular switching of a biphenyl-bridged imidazole dimer revealed by wide range transient absorption spectroscopyTetsuo Yamaguchi, Michiel F. Hilbers, Paul P. Reinders, Yoichi Kobayashi, Albert M. Brouwer and Jiro Abe Chem. Commun., 2015, 51(7), 1375-1378.
• 15.Entropy-controlled biradical-quinoid isomerization of a π-conjugated delocalized biradical
  Katsuya Mutoh, Yuki Nakagawa, Sayaka Hatano, Yoichi Kobayashi and Jiro Abe
  Phys. Chem. Chem. Phys., 2015, 17(2), 1151-1155.
  
• 14.Ultrafast Carrier Transfer and Hot Carrier Dynamics in PbS-Au Hybrid Nanostructures
  Tomoki Okuhata, Yoichi Kobayashi, Yoshiyuki Nonoguchi, Tsuyoshi Kawai, and Naoto Tamai
  J. Phys. Chem. C, 2015, 119, 2113-2120.
• 
  

• [2014年]

• 13.A chiral BINOL-bridged imidazole dimer possessing sub-millisecond fast photochromismTakahiro Iwasaki, Tetsuya Kato, Yoichi Kobayashi and Jiro Abe Chem. Commun., 2014, 50(56), 7481-7484.
• 12.Electrochemistry of photochromic [2.2]paracyclophane-bridged imidazole dimers: Rational understanding of the electronic structures
  Emi Nakano, Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
  J. Phys. Chem. A, 2014, 118 (12), 2288-2297.
• 11.Enhancing the versatility and functionality of fast photochromic bridged-imidazole dimers by flipping imidazole rings
  Kentaro Shima, Katsuya Mutoh, Yoichi Kobayashi and Jiro Abe
  J. Am. Chem. Soc., 2014, 136(10), 3796-3799.
• 10.Exploring Ultrafast Electronic Processes of Quasi-Type II Nanocrystals by Two-Dimensional Electronic Spectroscopy
  Yoichi Kobayashi, Chi-Hung Chuang, Clemens Burda, and Gregory D. Scholes
  J. Phys. Chem. C, 2014, 118, 16255-16263.
  
• 9.Synthesis and Optical Properties of Linker-Free TiO2/CdSe Nanorods
  Yasser Hassan, Chi-Hung Chuang, Yoichi Kobayashi, Neil Coombs, Sandeep Gorantla, Gianluigi A. Botton, Mitchell A. Winnik, Clemens Burda, and Gregory D. Scholes
  J. Phys. Chem. C, 2014, 118, 3347-3358.
  
• 8.Evidence of phonon-assisted Auger recombination and multiple exciton generation in semiconductor quantum dots revealed by temperature-dependent phonon dynamics
  Kim Hyeon-Deuk, Yoichi Kobayashi and Naoto Tamai
  J. Phys. Chem. Lett., 2014, 5, 99-105, 2014.
• 
  

• [2012年度]

• 7.Dual transient bleaching of Au/PbS hybrid core/shell nanoparticles
  Yoichi Kobayashi, Yoshiyuki Nonoguchi, Li Wang, Tsuyoshi Kawai and Naoto Tamai
  J. Phys. Chem. Lett., 2012, 3, 1111-1116.
• 6.External electric field effects on state energy and photoexcitation dynamics of water-soluble CdTe nanoparticles
  Ruriko Ohshima, Takakazu Nakabayashi, Yoichi Kobayashi, Naoto Tamai and Nobuhiro Ohta
  J. Phys. Chem. C, 2012, 115, 15274-15281, 2012.
• 5.Effects of surface defects on Auger recombination in colloidal CdS quantum dots
  Yoichi Kobayashi, Takatoshi Nishimura, Hiroshi Yamaguchi and Naoto Tamai
  J. Phys. Chem. Lett., 2011, 2, 1051-1055.
• 4.Auger recombination dynamics of hybrid silica-coated CdTe quantum dots
  Gabriel Sagarzazu, Yoichi Kobayashi, Norio Murase, Ping Yang and Naoto Tamai
  Phys. Chem. Chem. Phys., 2011, 13, 3227-3230.
• 3.Size-dependent multiexciton spectroscopy and moderate temperature dependence of biexciton Auger recombination in colloidal CdTe quantum dots
  Yoichi Kobayashi and Naoto Tamai
  J. Phys. Chem. C, 2010,114, 17550-17556.
• 2.Carrier multiplication in CdTe quantum dots by single-photon timing spectroscopy
  Yoichi Kobayashi, Takeshi Udagawa and Naoto Tamai
  Chem. Lett., 2009, 38, 830-831.
• 1.Effects of size and capping reagents on biexciton Auger recombination dynamics of CdTe quantum dots
  Yoichi Kobayashi, Lingyun Pan and Naoto Tamai
  J. Phys. Chem. C, 2009, 113, 11783-11789.
•  

Papers before 2016can be found Here.