Article
Chemistry, Multidisciplinary
Jaeyoung Kim, Kyungjune Cho, Jinsu Pak, Woocheol Lee, Junseok Seo, Jae-Keun Kim, Jiwon Shin, Juntae Jang, Kyeong-Yoon Baek, Jonghoon Lee, Seungjun Chung, Keehoon Kang, Takhee Lee
Summary: This paper investigates the avalanche multiplication process in ambipolar materials and analyzes the contribution of electrons and holes, providing a method and theoretical support for high-performance electronic devices utilizing ambipolar materials.
Article
Multidisciplinary Sciences
Reem B. Rashid, Weiyuan Du, Sophie Griggs, Iuliana P. Maria, Iain McCulloch, Jonathan Rivnay
Summary: The study introduces an active sensing node and inverter based on OECTs for signal amplification in bioelectronic sensing, providing new opportunities to improve signal quality and reduce the burden of signal transmission, while also demonstrating compatibility with nontraditional fabrication methods.
Review
Chemistry, Multidisciplinary
Yachu Du, Dafei Yuan, Mohammad A. Awais, Luping Yu
Summary: This paper provides a brief review of the progress in organic light-emitting transistors (OLETs) and the application of polymer materials in OLETs. The recent developments in semi-ladder polymers for electroluminescent materials are highlighted, emphasizing their potential advantages in OLETs. The conclusion discusses the challenges and future directions in this field.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Dorra Mahdaoui, Chika Hirata, Kahori Nagaoka, Kun'ichi Miyazawa, Kazuko Fujii, Toshihiro Ando, Manef Abderrabba, Osamu Ito, Shinjiro Yagyu, Yubin Liu, Yoshiyuki Nakajima, Kazuhito Tsukagoshi, Takatsugu Wakahara
Summary: Organic cocrystals assembled by noncovalent interactions have attracted significant attention due to their remarkable properties and applications. This study explores the ambipolar charge transfer properties of C-70/Fc nanosheets and demonstrates a thermally induced irreversible switching in the device's semiconducting behavior, from ambipolar to unipolar. Additionally, the C-70/Fc nanosheets show better thermal stability compared to C-60/Fc nanosheets.
Article
Multidisciplinary Sciences
Eyal Stein, Oded Nahor, Mikhail Stolov, Viatcheslav Freger, Iuliana Maria Petruta, Iain McCulloch, Gitti L. Frey
Summary: This study demonstrates a simple and tunable approach for fabricating ambipolar organic electrochemical transistors (OECTs) and circuits by judicious selection of p- and n-type materials for blend-based organic mixed ionic-electronic conductors (OMIECs). These ambipolar OECTs exhibit high transconductance, excellent stability, and high gains, providing a new paradigm for the fabrication of ambipolar OMIECs and circuits with little constraints on materials design and synthesis.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hanlin Wang, Ye Wang, Zhenjie Ni, Nicholas Turetta, Sai Manoj Gali, Haijun Peng, Yifan Yao, Yusheng Chen, Iwona Janica, David Beljonne, Wenping Hu, Artur Ciesielski, Paolo Samori
Summary: MXenes are highly conductive layered materials that can be functionalized to enhance electron mobility in conjugated polymers and 2D materials, resulting in unprecedented performance and functionality for polymer transistors. Intercalant engineering represents an efficient strategy to tune the electronic properties of MXenes, leading to the fabrication of high-performance opto-electronics and energy applications.
ADVANCED MATERIALS
(2021)
Article
Polymer Science
Si-Yu Lv, Qi-Yi Li, Bo-Wen Li, Jie-Yu Wang, You-Bing Mu, Liang Li, Jian Pei, Xiao-Bo Wan
Summary: This study reports the synthesis of electron deficient thiazoloisoindigo by using an electron deficient thiazole as the flanked moiety. The resulting polymer exhibits high and balanced hole/electron mobility in polymeric field-effect transistors.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Masatoshi Ito, Tomoko Fujino, Lei Zhang, So Yokomori, Toshiki Higashino, Rie Makiura, Kanokwan Jumtee Takeno, Taisuke Ozaki, Hatsumi Mori
Summary: Researchers synthesized planar alkoxy-substituted nickel bis(dithiolene) analogs with good solubility and crystallinity, which exhibited excellent ambipolar semiconductor performance in air. By addressing the molecular structure issue, they achieved high carrier mobility and large on/off ratio.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Takatsugu Wakahara, Kahori Nagaoka, Chika Hirata, Kun'ichi Miyazawa, Kazuko Fujii, Yoshitaka Matsushita, Osamu Ito, Makito Takagi, Tomomi Shimazaki, Masanori Tachikawa, Yoshiki Wada, Shinjiro Yagyu, Yubin Liu, Yoshiyuki Nakajima, Kazuhito Tsukagoshi
Summary: In this study, we report the synthesis of novel single-cocrystal nanoribbons with ambipolar charge transport characteristics from C-70 and 5,10,15,20-tetrakis(3,5-dimethoxyphenyl)porphyrin (3,5-TPP) in a 3:2 ratio. The C-70/3,5-TPP nanoribbons exhibit a new strong absorption band in the near-infrared region, indicating the presence of charge-transfer interactions between C-70 and 3,5-TPP in the cocrystals. The mechanism of the charge-transport properties of the nanoribbons is elucidated using photoemission yield spectroscopy in air and theoretical calculations, which confirm the crucial role of strong interaction between porphyrins in the one-dimensional porphyrin chains formed in C-70/3,5-TPP nanoribbons.
Review
Chemistry, Physical
Wennan Hu, Zhe Sheng, Xiang Hou, Huawei Chen, Zengxing Zhang, David Wei Zhang, Peng Zhou
Summary: Ambipolar 2D semiconductors, with excellent gate-controlled capability and distinctive physical characteristics, allow for dynamic tuning between holes and electrons, leading to the development of novel devices with advantages in various applications. This review provides a comprehensive overview of the basic knowledge, current semiconductors, preparation approaches, properties, and emerging device structures in the field of ambipolar 2D semiconductors. These materials hold great potential for future developments in new devices with novel functions and the advancement of 2D materials applications.
Article
Physics, Applied
Qin-Cheng Zhu, Yu Liu, Ming-Hui An, Ran Ding, Gao-Da Ye, Xi Gai, Hai Wang, Ming-Xu Du, Shuo-Nan Chen, Jing Feng, Hong-Bo Sun
Summary: By using mixed p- and n-type molecules as an ambipolar host for red and green dopants, ambipolar white organic single crystals with balanced carrier transport and emission intensity were obtained. These single-crystal WOLEDs achieved the highest brightness and current efficiency reported to date, along with a high color rendering index that varied with increasing driving current. This strategy is expected to support practical applications of organic single crystal-based OLEDs.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Usman O. Abu, Sharmin Akter, Bimal Nepal, Kathryn A. Pitton, Beth S. Guiton, Douglas R. Strachan, Gamini Sumanasekera, Hui Wang, Jacek B. Jasinski
Summary: This study presents a facile and straightforward method to synthesize phosphorene nanoribbons with good uniform widths via an electrochemical process in black phosphorus, demonstrating novel electronic properties. This approach is of significant importance for the preparation of narrow width structures.
Article
Materials Science, Multidisciplinary
Bowen Li, Xiangyu Zou, Qiyi Li, Hongqian Sang, Youbing Mu, Jieyu Wang, Jian Pei, Chunming Yang, Liang Li, Xiaobo Wan
Summary: Research on conjugated polymers with planar backbone has led to the development of high charge carrier mobility in organic filed-effect transistors (OFETs). Two new ambipolar polymers with the same backbone but with/without hexyl sidechains were synthesized and their charge transport properties were compared. The results showed that the polymer with a moderately twisted backbone due to the sidechain exhibited higher crystallinity, smoother surface morphology, and better charge transport, suggesting the importance of considering the backbone geometry in the design of high-performance OFETs.
ORGANIC ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Peng Wei, Xudong Wang, Xianglong Li, Songyu Han, Nan Qiao, Peng Zhang, Yunfeng Deng, Wei Zhang, Laju Bu, Guanghao Lu
Summary: This study significantly improves the switching-off capability of polymer ambipolar transistors by introducing non-uniformly distributed compensation potentials, achieving high mobility and high on/off ratio for both n-type and p-type operations. This method endows the device with diverse device characteristics and reconfigurable multi-functionalities, promoting the application of ambipolar transistors in various emerging electronics fields.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Panpan Yu, Yang Li, Huijuan Zhao, Lingyun Zhu, Yongshuai Wang, Wei Xu, Yonggang Zhen, Xinran Wang, Huanli Dong, Daoben Zhu, Wenping Hu
Summary: The study focuses on organic ambipolar semiconductors and successfully synthesizes four 1D mixed-stack cocrystals using electron donor-acceptor alternative stacking. These cocrystals exhibit high electron mobility and balanced hole mobility, showing potential for the development of organic ambipolar semiconductors.