− 47 − CSJ Journal Selects Vol. 2

Single-Crystal Organic Field-Effect Transistors of Naphthodifurans

Chikahiko Mitsui, Junshi Soeda,Kazumoto Miwa, Kazutaka Shoyama,Yoshinori Ota, Hayato Tsuji,* Jun Takeya,* and Eiichi Nakamura*Bull. Chem. Soc. Jpn. 2015, 88, 776-783

doi:10.1246/bcsj.20150033

E. Nakamura

O

O

O

O Solution crystallized FET

Hole Mobility: 3.6 cm2 V–1 s–1

OO

R

R

R: H, Octyl

BCSJ Award Article Organic Field-Effect Transistors (OFET); Naphthodifurans

Highly Efficient Thermally Activated Delayed Fluorescence Emitters with a 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. 2015, 44, 360-362

doi:10.1246/cl.141054

C. Adachi

Letter Thermally Activated Delayed Fluorescence (TADF); OLED

Organic Electronics

One-Electron-Oxidized States of Dihedral-Angle-Controlled 2,2′-Bithiophenes with Terminal Ferrocenyl Groups

Masa-aki Sato,* Syuhei Arita, andKazuki KawajiriBull. Chem. Soc. Jpn. 2015, 88, 262-270

doi:10.1246/bcsj.20140315

M. Sato

Fc : Ferrocenyl group

Selected Paper Bithiophenes Linked with Ferrocenes; Intramolecular Electronic Communication

Facile Fabrication and Photovoltaic Application of [60]Fullerene Assembly Films Formed by Reaction between Fullerene and Amines

Shoto Banya, Tsuyoshi Akiyama,*Taisuke Matsumoto, Katsuhiko Fujita, and Takeo OkuBull. Chem. Soc. Jpn. 2014, 87, 1335-1342

doi:10.1246/bcsj.20140121

T. Akiyama

TiOx

h

+

-

PEDOT:PSS

S

OO

n SO3-

n

P3HTS

C6H13

n

BCSJ Award Article Fullerene Assembly Films; Photovoltaic Application

− 48 −CSJ Journal Selects Vol. 2

Design of Fullerene-Free Electron-Acceptor Materials Containing Perylenediimide Units for Solution-Processed Organic Electronic Devices

Koutarou Aoyagi, Yu Shoji, Saika Otsubo, Susumu Kawauchi, Mitsuru Ueda,Hidetoshi Matsumoto,* andTomoya Higashihara*Bull. Chem. Soc. Jpn. 2014, 87, 1083-1093

doi:10.1246/bcsj.20140167

T. Higashihara

300 400 500 600 7000

2

4

6

8

10

12

Wavelength / nm

ε / 1

04 L

mol

-1 c

m-1

PC61BM

Acceptor DonorDonor

Fullerene-free OPV

Selected Paper Fullerene-free Acceptor Materials; Organic Semiconductors

Molecular Wiring Method Based on Polymerization or Copolymerization of an Insulated π-Conjugated Monomer

Jun Terao,* Kyohei Homma, Yohei Konoshima, Masateru Taniguchi,* Manabu Kiguchi,*Yuuki Komoto, Masayo Horikawa,Yasuhisa Naito, Tetsuaki Fujihara, andYasushi TsujiBull. Chem. Soc. Jpn. 2014, 87, 871-873

doi:10.1246/bcsj.20140082

J. Terao

Interface control molecule Insulated π-conjugated monomer Photochromic monomer +

α

α

Selected Paper Molecular Wire; Insulated π-Conjugated Monomer

Thermally Activated Delayed Fluorescence from a Spiro-diazafluorene Derivative

Hiroshi Ohkuma, Tetsuya Nakagawa,Katsuyuki Shizu, Takuma Yasuda,* andChihaya Adachi*Chem. Lett. 2014, 43, 1017-1019

doi:10.1246/cl.140360

T. Yasuda

Editor's Choice Thermally Activated Delayed Fluorescence (TADF); OLED

Dicarbazolyldicyanobenzenes as Thermally Activated Delayed Fluorescence Emitters: Effect of Substitution Position on Photoluminescent and Electroluminescent Properties

Bo Li, Hiroko Nomura, Hiroshi Miyazaki, Qisheng Zhang, Kou Yoshida, Yoshinori Suzuma, Akihiro Orita,* Junzo Otera, and Chihaya Adachi*Chem. Lett. 2014, 43, 319-321

doi:10.1246/cl.130907

C. Adachi

Letter Thermally Activated Delayed Fluorescence (TADF); OLED

− 49 − CSJ Journal Selects Vol. 2

Development of π-Electron Systems Based on [M(dmit)2] (M = Ni and Pd; dmit: 1,3-dithiole-2-thione-4,5-dithiolate) Anion Radicals

Reizo KatoBull. Chem. Soc. Jpn. 2014, 87, 355-374

doi:10.1246/bcsj.20130290

R. Kato

Award Accounts Metal Dithiolene Complexes; Molecular Conductors

Electron-Transfer Processes in Highly-Correlated Electron Systems of Thiazyl Radicals

Kunio Awaga,* Kenji Nomura, Hideo Kishida, Wataru Fujita, Hirofumi Yoshikawa, Michio M. Matsushita, Laigui Hu, Yoshiaki Shuku, and Rie SuizuBull. Chem. Soc. Jpn. 2014, 87, 234-249

doi:10.1246/bcsj.20130248

K. Awaga

Award Accounts Heterocyclic Thiazyl Radicals; Molecular Conductors

Ionic versus Electronic Ferroelectricity in Donor–Acceptor Molecular Sequences

Sachio Horiuchi,* Kensuke Kobayashi,Reiji Kumai, and Shoji Ishibashi*Chem. Lett. 2014, 43, 26-35

doi:10.1246/cl.130840 Highlight Review TTF-based CT Complex; Ferroelectricity

S. Horiuchi

Introduction of an Arylethynyl Group onto an Anthracene Bisimide Core for Molecular Design of New π-Conjugated Compounds

Tetsuo Iwanaga,* Ryo Tanaka, andShinji Toyota*Chem. Lett. 2014, 43, 105-107

doi:10.1246/cl.130842

S. ToyotaN N

O

O O

O

R R

N N

O

O O

O

R R N N

O

O O

O

N N

O

O O

O

R R

R R

ABI unitAnthracene

donor

Extended π-conjugationby arylethynyl group

Editor's Choice Anthracene Bisimide; Sonogashira and Stille Couplings

A Tris-fused Tetrathiafulvalene Extended with Cyclohexene-1,4-diylidene: A New Positive Electrode Material for Organic Rechargeable Batteries

Minami Kato, Daisuke Ogi, Masaru Yao, and Yohji Misaki*Chem. Lett. 2013, 42, 1556-1558

doi:10.1246/cl.130841

Y. Misaki

Editor's Choice Organic Rechargeable Batteries; Tris-fused TTF

− 50 −CSJ Journal Selects Vol. 2

Syntheses, Redox Properties, Self-Assembled Structures, and Charge-Transfer Complexes of Imidazole- and Benzimidazole-Annelated Tetrathiafulvalene Derivatives

Tsuyoshi Murata, Yosuke Yamamoto, Yumi Yakiyama, Kazuhiro Nakasuji, andYasushi Morita*Bull. Chem. Soc. Jpn. 2013, 86, 927-939

doi:10.1246/bcsj.20130043

Y. Morita

HN

N S

S

S

S SR'

SR'

R

HN

N S

S

S

S

NH

NR R

S

SHN

N S

SR

SR'

SR'

Selected Paper TTF Annelated with Imidazole- and Benzimidazole; H-Bond for Charge Transfer

Palladium-catalyzed Direct Arylation Approach to Synthesize Naphthalene Bisimide-based Low-band-gap Polymers

Kazuhiro Nakabayashi* and Hideharu MoriChem. Lett. 2013, 42, 717-718

doi:10.1246/cl.130201

K. Nakabayashi

N

N

OO

O O

C10H21C12H25

C10H21

C12H25

SS

C6H13

C6H13

S

CH3H3C

+Br

Br

N

N

OO

O O

SS

C6H13

S

H3C CH3

n

C10H21C12H25

C12H25C10H21

C6H13

Pd catalyst

Mn = 10000, Mw/Mn = 1.63

HH

- HBr

Letter Low-band-gap Polymers; Palladium-catalyzed Direct Arylation

Cooperation of Hydrogen-Bond and Charge-Transfer Interactions in Molecular Complexes in the Solid State

Yasushi Morita,* Tsuyoshi Murata, and Kazuhiro Nakasuji*Bull. Chem. Soc. Jpn. 2013, 86, 183-197

doi:10.1246/bcsj.20120241

Y. Morita

Accounts H-Bond for Charge Transfer; TTF and TCNQ

Unprecedented High Local Charge-carrier Mobility in P3HT Revealed by Direct and Alternating Current Methods

Yoshihiro Yasutani, Akinori Saeki,*Takahiro Fukumatsu, Yoshiko Koizumi, and Shu Seki*Chem. Lett. 2013, 42, 19-21

doi:10.1246/cl.2013.19

S. Seki

Letter Polythiophenes; Charge-carrier Mobility

Estimated Mobility of Ambipolar Organic Semiconductors, Indigo and Diketopyrrolopyrrole

Hirotaka Kojima* and Takehiko MoriChem. Lett. 2013, 42, 68-70

doi:10.1246/cl.2013.68

H. Kojima

Editor's Choice Ambipolar Organic Semiconductors; Electron-deficient Building Blocks