•  
  •  
 
Nano Research

Article Title

Fullerene/cobalt porphyrin charge-transfer cocrystals: Excellent thermal stability and high mobility

Authors

Shushu Zheng, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
Junwen Zhong, Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Wakana Matsuda, Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 6158510, Japan
Peng Jin, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
Muqing Chen, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
Takeshi Akasaka, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
Kazuhito Tsukagoshi, International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
Shu Seki, Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 6158510, Japan
Jun Zhou, Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Xing Lu, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China

Keywords

organic semiconductor, fullerene/porphyrin, thermal stability, mobility, charge-transfer

Abstract

ABSTRACT Although organic semiconductors with high mobility and thermal stability are particularly desirable for practical applications, facile methods for their development still remains a big challenge. In this work, a charge-transfer cocrystal based on fullerene (C70)/cobalt porphyrin supramolecular architecture was prepared by a solution-processable co-assembly strategy. This supramolecular architecture showed hole mobility as high as 4.21 cm2·V−1·s−1, and a relatively high mobility of 0.02 cm2·V−1·s−1 even after thermal treatment at 1,000 °C. Further studies confirmed the occurrence of charge-transfer from 5,10,15,20- tetrakis(4-methoxyphenyl)porphyrinato cobalt(II) (CoTMPP) to C70 and the paramagnetic character within the supramolecular system. These factors were found to be responsible for the aforementioned superior performances. Thus, a novel organic semiconductor has been reported in this work, which can be potentially used for next generation electronic devices. Furthermore, it has been demonstrated that charge-transfer co-crystallization is a powerful strategy for the rational design and construction of a broad class of new multifunctional organic co-crystalline materials.

Graphical Abstract

Publisher

Tsinghua University Press

Share

COinS