Article
Polymer Science
Shiwei Ren, Yubing Ding, Wenqing Zhang, Zhuoer Wang, Sichun Wang, Zhengran Yi
Summary: Organic polymer semiconductor materials can be easily tuned by rational molecular structure design to modulate their material properties, which affects the device performance. By designing and synthesizing a series of terpolymer materials for organic thin-film transistor (OTFT) devices, we found that the structural difference of the materials leads to significantly different mobility behavior. This study provides a basis for designing semiconductor materials with higher carrier mobility.
Article
Materials Science, Multidisciplinary
Na Young Kim, Taek Seong Lee, Da Yeon Lee, Jong Gyu Oh, Keunjin Lee, Jae Young Kim, Tae Kyu An, Yong Jin Jeong, Jaeyoung Jang, Yun-Hi Kim
Summary: The new DPP-based conjugated polymer EHT6-20DPP with eight thiophene groups per repeat unit showed higher doping efficiency and better thermoelectric performance compared to other DPP-based polymers, providing insights into optimal polymer backbone design for excellent thermoelectric properties.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Yina Moon, Jong-Woon Ha, Minho Yoon, Do-Hoon Hwang, Jiyoul Lee
Summary: This study introduces a novel p-type doping strategy by using fluorinated functional groups in the polymer dielectric layer of OFETs to adjust the surface polarization effect of semiconducting films, leading to an increase in hole mobility.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yeonhwa Cho, Taehoon Kim, Woongki Lee, Hwajeong Kim, Youngkyoo Kim
Summary: Here, we present the fabrication and characterization of ambipolar organic phototransistors (OPTRs) with sensing channel layers of a conjugated terpolymer, PDPP-8OBT-NDI. The OPTRs exhibited well-balanced ambipolar characteristics at a wide voltage range and showed high photosensitivity in the near-infrared (NIR) region. The devices also displayed stable and reproducible photocurrent responses under continuous NIR light illumination and optical on/off modulation.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Hyun Woo Lee, Hee Su Kim, Doyeon Kim, Minho Yoon, Jiyoul Lee, Do-Hoon Hwang
Summary: Comparative device analyses were conducted to understand charge-transport behavior in PFETs using DPP-based conjugated copolymers with chalcogenophene units. The orientation of the copolymer backbone significantly impacted the electrical performance of the PFETs, with face-on-oriented copolymers exhibiting superior mobility despite lower planarity. The degree of delocalization of disordered domains in the DPP-based polymer was found to be crucial in determining the charge-transport behavior in PFETs.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tugba Haciefendioglu, Erol Yildirim
Summary: This study models, analyzes, and compares over 50 different acceptor units using computationally extracted data from density functional theory. It finds that the structural properties of acceptor units have a dominant effect on their frontier electronic energy levels, particularly the dihedral angle between the acceptor, donor, and bridge units, bond order, and hyperpolarizability.
Article
Polymer Science
Xuxia Zhao, Houji Cai, Yunfeng Deng, Yu Jiang, Zhongli Wang, Yibo Shi, Yang Han, Yanhou Geng
Summary: The paper describes the synthesis and characterization of a series of conjugated polymers with strong absorption in the NIR-II region. These polymers exhibit low optical band gaps, high photothermal conversion efficiencies, and reliable charge transport properties, making them promising for applications in organic electronics and bio-related fields.
Article
Materials Science, Multidisciplinary
Ying Sui, Zhongli Wang, Junhua Bai, Yibo Shi, Xuwen Zhang, Yunfeng Deng, Yang Han, Yanhou Geng
Summary: Two soluble conjugated polymers Fu-F and Fu-Cl were successfully synthesized via direct arylation polycondensation (DArP). Fu-F showed better device performance with an electron mobility of up to 2.79 cm(2) V-1 s(-1). The study demonstrates that high mobility CPs processed with green solvents can be synthesized by DArP.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Jisu Park, Chulyeon Lee, Taehoon Kim, Hwajeong Kim, Youngkyoo Kim
Summary: This study detailed a novel near-infrared-absorbing conjugated polymer from compound structure to optoelectronic properties, demonstrating its potential application in NIR sensing devices and investigating the changes in its photoelectric performance at different thicknesses.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Vinay S. Kadam, Hiren K. Machhi, Saurabh S. Soni, Sanjio S. Zade, Arun L. Patel
Summary: Three p-type donor-acceptor pi-conjugated polymers were synthesized and characterized in this study. The polymers exhibited promising optical and electrical properties, as well as high thermal stability. These findings highlight the great potential of these polymers as p-type polymer semiconductors.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Biomaterials
Zhihui Wu, Jing Wang, Linlin Zhao, Chenxi Li, Yan Lu
Summary: This study reports a novel conjugated polymer PDPP-TP with a donor-acceptor structure, which was synthesized by direct arylation polycondensation. The hydrophilic PDPP-TP-based nanoparticles (PTNPs) were obtained through self-assembly and showed strong near-infrared absorbance and high photothermal conversion efficiency under laser irradiation. PTNPs demonstrated remarkable antibacterial activity against Gram-negative E. coli and Gram-positive S. aureus with the assistance of an 880 nm laser, showcasing their potential for the effective treatment of microbial infections.
BIOMATERIALS SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Yiwen Fan, Yongning Chi, Yan Li, Xiaojie Fan, Hongzhi Liu
Summary: This paper proposes two control strategies to achieve voltage regulation capability in a battery-free medium-voltage DC system with distributed photovoltaic generation units (DPVGUs). The first strategy is the improved DC constant voltage control strategy, utilizing the maximum output characteristics of a photovoltaic panel and the boost capability of a DC/DC boost converter to control the system voltage. The second strategy is the sequential coordinated constant voltage control strategy, where DPVGUs operate in turns using the improved DC constant voltage control strategy based on their voltage regulation capability.
IET RENEWABLE POWER GENERATION
(2022)
Article
Polymer Science
Xiaobo Yu, Cheng Li, Chenying Gao, Liangliang Chen, Xisha Zhang, Guanxin Zhang, Deqing Zhang
Summary: This paper introduces a new design strategy for healable polymeric semiconductors by incorporating coumarin groups into the polymer side chains. The research shows that the photo-crosslinking effect of coumarins has minimal impact on the film morphology and interchain packing order of the conjugated polymer PDPP4T-DCM, while facilitating the repair of mechanically damaged films and the recovery of semiconductor properties. Additionally, the photo-crosslinking caused by coumarins can improve the thermal stability of charge transport by locking the film morphology.
JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Organic
Sabir Hussain Mashraqui, Aniket Chilekar, Rupesh Mestri, Jyoti Upadhyay, Purav Badani, Siva Sankar Nemala, Parag Bhargava
Summary: A series of new organic photosensitizers, BZ1-BZ4, were synthesized and exhibited good optical properties in UV-visible spectra. They also showed certain efficiency in dye-sensitized solar cells.
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2023)
Article
Polymer Science
Paige A. Shaw, Maxime Klausen, Mark Bradley
Summary: A light-responsive polymer capable of controlled release of camptothecin and generation of reactive oxygen species (ROS) was developed, which exhibited high cancer cell killing activity through both camptothecin release and ROS generation.
Article
Polymer Science
Donghui Zhang, Shiqi Liu, Zhihao Cai, Weizhe Luo, Guojian Liu, Runhui Liu
Summary: A straightforward and efficient method for synthesizing NPC monomers has been developed in this study, which enhances the availability of NPC monomers and facilitates the synthesis of polypeptides.
