Article
Chemistry, Multidisciplinary
Bowen Ding, Gunwoo Kim, Youngseok Kim, Flurin D. Eisner, Edgar Gutierrez-Fernandez, Jaime Martin, Myung-Han Yoon, Martin Heeney
Summary: Two new glycolated semiconducting polymers, PgBT(F)2gT and PgBT(F)2gTT, with different backbone curvatures were designed and synthesised for application in p-type accumulation mode organic electrochemical transistors (OECTs). While PgBT(F)2gT achieved a higher volumetric capacitance due to its curved backbone geometry, PgBT(F)2gTT exhibited superior OECT performance overall thanks to its enhanced order, resulting in faster charge mobility.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Seongmin Heo, Jimin Kwon, Mingi Sung, Seunglok Lee, Yongjoon Cho, Haksoon Jung, Insang You, Changduk Yang, Junghoon Lee, Yong-Young Noh
Summary: A method of achieving high-performance OECT with donor-acceptor conjugated copolymers by introducing fluorine units is proposed. The fluorinated polymers exhibit enhanced charge carrier mobility and extended volumetric capacitance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hamas Tahir, Naresh Eedugurala, Sheng-Ning Hsu, Paramasivam Mahalingavelar, Brett M. Savoie, Bryan W. Boudouris, Jason D. Azoulay
Summary: Open-shell conjugated polymers (CPs) offer new opportunities for emerging technologies due to their unique electronic and spin structures. In this study, the connections between molecular, electronic, and solid-state transport in a high-spin donor-acceptor CP were investigated. It was found that a giant negative magnetoresistance (MR) was achieved in the CP thin-film device at low temperatures, surpassing the performance of all other organic materials. As the temperature increased, the negative MR decreased and became positive, which correlated with the electronic and spin structure of the CP.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Michael E. Steelman, Daniel J. Adams, Kevin S. Mayer, Paramasivam Mahalingavelar, Chih-Ting Liu, Naresh Eedugurala, Molly Lockart, Yunfei Wang, Xiaodan Gu, Michael K. Bowman, Jason D. Azoulay
Summary: In this study, a high-spin conjugated polymer is demonstrated, showing clear anisotropic spin ordering and exchange interactions at room temperature. The macromolecular structure and topology promote the generation of spin centers and intermolecular exchange coupling. This work offers a fundamentally new approach to the implementation of magnetically ordered organic materials and the integration of manifold properties within emerging technologies.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Applied
Dunshuai Qu, Ting Qi, Hui Huang
Summary: This article systematically reviews the polymerization methods of A-A-type polymers and the recent advancements applied in OFETs and PSCs, providing constructive guidance for the further development of high-performance n-type polymer materials by analyzing the synthesis and the relationship between device performances and polymer molecular structures.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Amadou Doumbia, Jincheng Tong, Richard J. Wilson, Michael Lewis Turner
Summary: The study evaluates the performance of donor-acceptor conjugated polymers in electrolyte-gated organic field-effect transistors, showing that these materials outperform traditional conjugated polymers and are well-suited for the development of bioelectronic devices.
ADVANCED ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ayse Can, Gi-Seok Choi, Resul Ozdemir, Soyoon Park, Jin Su Park, Yongchul Lee, Ibrahim Deneme, Evren Mutlugun, Choongik Kim, Bumjoon J. Kim, Hakan Usta
Summary: The realization of pi-deficient acceptors and their donor-acceptor copolymers has become a key research focus for versatile organic optoelectronic materials and devices. This study demonstrates a unique meso-pi-extension strategy to realize BODIPYs with favorable pi-acceptor properties. The synthesized building blocks and copolymers exhibited promising electronic and structural properties suitable for various optoelectronic applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Soumitra Sau, Suman Kalyan Samanta
Summary: In this study, triphenylamine-based donor-acceptor conjugated microporous polymers (PTPA-AQ and PTPA-AM) were synthesized for efficient visible-light driven oxidative hydroxylation of phenylboronic acids. PTPA-AQ demonstrated higher BET surface area and better photocatalytic activity with yields up to 96%.
CHEMICAL COMMUNICATIONS
(2023)
Review
Polymer Science
Yi-Fan Li, Yun-Long Guo, Yun-Qi Liu
Summary: This review provides an overview of the recent progress in the design and synthesis of high-performance donor-acceptor conjugated polymeric semiconducting materials from the perspective of multiscale structures. The multiscale of these polymers encompasses the primary one-dimensional polymer molecular scale, the secondary polymer-chains interaction scale, and the tertiary polymer aggregate scale. The review focuses on the design and synthesis of polymer molecules, proposes new classification rules, and systematically summarizes the design strategies and modulation methods of polymers. The recent progress is described in terms of three aspects: modification of the pi-conjugated backbone, evolution of the polymerization methods, and regulation of the aggregate-state structure.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Yu-Ting Liao, Yi-Chun Hsiao, Yuan-Chih Lo, Chia-Chi Lin, Po-Shen Lin, Shih-Huang Tung, Ken-Tsung Wong, Cheng-Liang Liu
Summary: Molecular design and precise control of thin-film morphology and crystallinity of solution-processed small molecules are important for enhancing charge transport mobility of organic field-effect transistors. In this study, two small molecules with donor-acceptor-donor architecture were synthesized and characterized, and it was found that rational modulation of fused core can significantly enhance the performance of solution-processed organic semiconductors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Maximilian Moser, Achilleas Savva, Karl Thorley, Bryan D. Paulsen, Tania Cecilia Hidalgo, David Ohayon, Hu Chen, Alexander Giovannitti, Adam Marks, Nicola Gasparini, Andrew Wadsworth, Jonathan Rivnay, Sahika Inal, Iain McCulloch
Summary: Donor-acceptor polymers based on diketopyrrolopyrrole unit show promising OECT performance similar to all-donor polymers, representing a significant improvement to previously developed D-A copolymers. DFT simulations suggest a positive correlation between hole polaron delocalization and steady-state OECT performance, providing new insights into the design of OECT materials. It is demonstrated that polaron delocalization can be tuned at the molecular level by selecting building blocks in the polymers' conjugated backbone, paving the way for higher performing OECT polymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Materials Science, Multidisciplinary
Ruochen Liu, Wenming Yang, Wanzhen Xu, Junyang Deng, Chenming Ding, Yifu Guo, Lei Zheng, Jiashu Sun, Mengmeng Li
Summary: This review article summarizes the recent advances on the effect of molecular design on the polymer packing orientation, focusing on the key structural factor of side chains and the modulation of π-π interactions and conjugation length in solid states.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Vinh Van Tran, Ganghoon Jeong, Eunsol Wi, Daeho Lee, Mincheol Chang
Summary: This study developed an OFET sensor based on a donor-acceptor copolymer, which exhibits high responsivity, sensitivity, and selectivity towards polar volatile organic compounds, as well as good air stability. A DPP-DTT-based OFET device with an ultrathin nanoporous structure suitable for gas sensing applications was fabricated by optimizing the film morphology. The sensor shows high responsivities and fast response and recovery times for methanol, acetone, ethanol, and isopropyl alcohol. Moreover, the device demonstrates excellent long-term air and thermal storage stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Haoquan Zhang, Yongxu Hu, Xiaosong Chen, Li Yu, Yinan Huang, Zhongwu Wang, Shuguang Wang, Yunpeng Lou, Xiaonan Ma, Yajing Sun, Jie Li, Deyang Ji, Liqiang Li, Wenping Hu
Summary: This study successfully synthesized a novel organic semiconductor TFP-TT-TPA with a centrosymmetric structure through molecule design, and found that it has negligible photoresponse. The specific design facilitates the exciton quenching process, enabling the devices to work stably under sunlight.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Organic
Alfred A. Burney-Allen, Jessica Shaw, David L. Wheeler, Lily Diodati, Volodimyr Duzhko, Aimee L. Tomlinson, Malika Jeffries-EL
Summary: Four cross-conjugated molecules based on the BBO moiety were synthesized, with highly segregated HOMO and LUMO levels that could be tuned semi-autonomously through substitution. Experimental data showed significant variations in LUMO levels with increased electron-density along the 2,6-axis. Introducing relatively electron-deficient moieties led to a bathochromic shift in absorption profiles and stabilization of the LUMO.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Engineering, Multidisciplinary
Yangyang Han, Changlin Ma, Shengjin Tang, Fengfei Wang, Xiaoyan Sun, Xiaosheng Si
Summary: The paper proposes a heuristic algorithm and an unbiased parameter estimation method for residual life estimation based on the nonlinear Wiener process with measurement error. Experimental results demonstrate the effectiveness of these methods.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART O-JOURNAL OF RISK AND RELIABILITY
(2023)
Article
Chemistry, Multidisciplinary
Filip Anies, Mohamad I. Nugraha, Arona Fall, Julianna Panidi, Yuxi Zhao, Patrice Vanelle, Leonidas Tsetseris, Julie Broggi, Thomas D. Anthopoulos, Martin Heeney
Summary: Molecular doping using air-stable carboxylated dopant precursors has been developed to enhance the electronic properties of organic semiconductors (OSCs). The dopants can be easily generated in solution and applied to n-type organic field-effect transistors (OFETs). Experimental and computational studies reveal the decarboxylation and dimerization processes involved in the formation of active dopants. The successful improvement of device performance demonstrates the versatility of the dopants across different OSCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Malgorzata Nguyen, Ulrike Kraft, Wen Liang Tan, Illia Dobryden, Katharina Broch, Weimin Zhang, Hio-Ieng Un, Dimitrios Simatos, Deepak Venkateshavaran, Iain McCulloch, Per M. Claesson, Christopher R. McNeill, Henning Sirringhaus
Summary: Conjugated polymer field-effect transistors show excellent mechanical properties, high charge-carrier mobilities, and compatibility with large-area, low-temperature processing, making them a promising technology for flexible electronics. However, their electrical stability is still a concern. This study presents a simple method of antisolvent treatment to improve the stability and performance of solution-processable indacenodithiophene-co-benzothiadiazole (IDT-BT) polymer transistors. The method increases the degree of crystallinity in the weakly crystalline polymer films, reducing electron trapping and charge traps. This highlights the importance of microstructure in weakly crystalline polymer films and offers a processing strategy for reliable flexible electronics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qiao He, Aniruddha Basu, Hyojung Cha, Matyas Daboczi, Julianna Panidi, Luxi Tan, Xiantao Hu, Chi Cheng Huang, Bowen Ding, Andrew J. P. White, Ji-Seon Kim, James R. Durrant, Thomas D. Anthopoulos, Martin Heeney
Summary: A new class of J-aggregating materials based on quinoidal indacenodithiophenes (IDTs) with ultra-narrowband NIR absorption peak is reported. The spectral width can be tuned by the length of the solubilizing alkyl group. The J-aggregate behavior is confirmed and their utility as electron-transporting materials is demonstrated.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hu Chen, Sang Young Jeong, Junfu Tian, Yadong Zhang, Dipti R. Naphade, Maryam Alsufyani, Weimin Zhang, Sophie Griggs, Hanlin Hu, Stephen Barlow, Han Young Woo, Seth R. Marder, Thomas D. Anthopoulos, Iain McCulloch, Yuanbao Lin
Summary: A nonfullerene acceptor isoIDITC with fibril-like morphology is utilized as a third component in organic photovoltaic devices, achieving a power conversion efficiency of 19%. The ternary blend shows an alloy model and a well-defined fibril-like network, enhancing crystallization and improving carrier mobility and lifetime compared to binary devices. The use of isoIDITC suppresses demixing and increases T80 lifetime, making it an important component for high-performance and stable ternary OPVs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Polymer Science
Xiantao Hu, Aniruddha Basu, Martina Rimmele, Adam V. V. Marsh, Filip Anies, Qiao He, Thomas D. D. Anthopoulos, Martin Heeney
Summary: We report the synthesis and characterization of four novel n-type polymer semiconductors containing a 2-(1,3-dithiol-2-ylidene)malonitrile (DTYM) group as an acceptor and a 2,1,3-benzothiadiazole (BT) unit. The introduction of the DTYM group leads to backbone twisting and blue-shifted absorption, but increases the dipole moment and electron affinity. All polymers exhibit n-type semiconducting character in organic field-effect transistors (OFETs), with the fluorinated bithiophene donor demonstrating the best performance. This work highlights the influence of the DTYM group on polymer semiconductors and its potential as a functional group to enhance electron affinity.
Article
Chemistry, Physical
Lucas Q. Flagg, Jonathan W. Onorato, Christine K. Luscombe, Vinayak Bhat, Chad Risko, Ben Levy-Wendt, Michael F. Toney, Christopher R. McNeill, Guillaume Freychet, Mikhail Zhernenkov, Ruipeng Li, Lee J. Richter
Summary: Organic mixed ionic-electronic conductors (OMIECs) have the potential for various new technologies, but their complex behavior inhibits material design. This report presents the use of RXRD to determine the structure of a doped polymer OMIEC. The insights from RXRD provide important information on ion location and doping behavior, contributing to a better understanding of transport in OMIECs.
CHEMISTRY OF MATERIALS
(2023)
Article
Biophysics
Abhinav Sharma, Wejdan S. AlGhamdi, Hendrik Faber, Yen-Hung Lin, Chien-Hao Liu, En-Kai Hsu, Wei-Zhi Lin, Dipti Naphade, Suman Mandal, Martin Heeney, Thomas D. Anthopoulos
Summary: In this study, tri-channel In2O3/ZnO heterojunction thin-film transistors (TFTs) were developed to detect glucose in various biofluids. By immobilizing the enzyme glucose oxidase on the surface, the TFTs can selectively detect glucose through the strong coupling between the electrons transported along the buried In2O3/ZnO heterointerface and the electrostatic perturbations caused by the interactions between glucose and glucose oxidase. The BioTFTs demonstrated high sensitivity and specificity for glucose detection in both artificial and real saliva.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Physical
Doan Vu, Linjing Tang, Lars Thomsen, Martyn Jevric, Mats R. Andersson, Christopher R. McNeill
Summary: In this study, the influence of molecular packing and orientation of conjugated polymer chains in thin films on the charge transport properties and device performance of polymer-based optoelectronic devices was extensively investigated. The effects of various processing conditions on the thin-film microstructure were studied using grazing-incidence wide-angle X-ray scattering. It was found that the recently discovered third crystalline form of a well-studied electron transporting polymer evolved directly from the face-on oriented form upon melting under specific conditions.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Swati Deswal, Rishukumar Panday, Dipti R. Naphade, Pierre-Andre Cazade, Sarah Guerin, Jan K. Zareba, Alexander Steiner, Satishchandra Ogale, Thomas D. Anthopoulos, Ramamoorthy Boomishankar
Summary: Cyclophosphazenes have been found to be a versatile platform for various functional systems, and this study reports the first supramolecular ferroelectric compound based on an organophosphazene. The compound exhibits multiaxial polarization and shows potential for piezoelectric energy harvesting applications. The high performance of the compound is attributed to the flexible layered supramolecular assembly, which allows for mechanical stress-induced distortions.
Review
Chemistry, Analytical
Masoud Negahdary, Abhinav Sharma, Thomas D. Anthopoulos, Lucio Angnes
Summary: Heart diseases, especially myocardial infarction (MI), are the leading cause of death. Electrochemical biosensors are cutting-edge diagnostic tools that can accurately measure cardiac biomarkers released during a heart attack, enabling rapid screening and treatment initiation. These biosensors, equipped with nano-materials, have improved diagnostic performance and sensitivity, facilitating reliable detection. Evaluating
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Supriya Sahoo, Premkumar Anil Kothavade, Dipti R. Naphade, Arun Torris, Balu Praveenkumar, Jan K. Zareba, Thomas D. Anthopoulos, Kadhiravan Shanmuganathan, Ramamoorthy Boomishankar
Summary: Three-dimensional printing is a novel technology used to fabricate complex structures for advanced flexible and wearable electronic devices. Researchers have developed a 3D-printed composite material consisting of a chiral ferroelectric organic salt with a biodegradable polymer, which serves as a highly efficient piezoelectric nanogenerator.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Neetu Prajesh, Dipti R. Naphade, Ashok Yadav, Vikash Kushwaha, Balu Praveenkumar, Jan K. Zareba, Thomas D. Anthopoulos, Ramamoorthy Boomishankar
Summary: The ferroelectric behavior of an octahedral cage material, denoted as 1, has been discovered with high remnant polarization. Clear domain structures and characteristic electromechanical responses have been demonstrated for a thin film of 1 using piezoresponsive force microscopy. Polymer composites of 1 have been employed as efficient piezoelectric nanogenerators due to their mechanical energy conversion capability.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Emre Yarali, Jehad K. El-Demellawi, Hendrik Faber, Dipti Naphade, Yuanbao Lin, Kalaivanan Loganathan, Wejdan S. Alghamdi, Xiangming Xu, Atteq Ur Rehman, Erkan Aydin, Despoina Gkeka, Linqu Luo, Emre Yengel, Temur Maksudov, Stefaan De Wolf, Husam N. Alshareef, Thomas D. Anthopoulos
Summary: Printable large-area electronics are attracting increasing interest due to their potential for cost-efficient manufacturing. MXenes, a family of two-dimensional transition metal carbides/nitrides, hold promise as electrode materials for printed electronics. In this study, In2O3/ZnO heterojunction metal oxide thin-film transistors (TFTs) were developed using spray-coated Ti3C2Tx MXene. The fully spray-coated devices demonstrated electron mobility of 3 cm2 V-1 s-1 and an on/off ratio of >104, showing the possibility of replacing conventional metal contacts in large-area electronics.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Bowen Ding, Manik Bhosale, Troy L. R. Bennett, Martin Heeney, Felix Plasser, Birgit Esser, Florian Gloecklhofer
Summary: This study reports the development of an unsubstituted derivative, SqTI-H, of locally aromatic alkyl-N-substituted squarephaneic tetraimide (SqTI) conjugated macrocycles. By removing sidechains, the solubility of SqTI-H is reduced, resulting in improved thermal stability and low solubility. The unsubstituted SqTI-H also exhibits reversible solid state electrochemical reduction to a globally aromatic dianion state. However, further optimization of electrode fabrication procedures is needed to overcome the solubility issues and improve the cycling performance.
FARADAY DISCUSSIONS
(2023)
