Article
Nanoscience & Nanotechnology
Jiali Li, Huihui Li, Zhongjie Ren, Shouke Yan, Xiaoli Sun
Summary: This study introduces a new technology to improve electrical properties during stretching by using oriented P3HT films and PDMS layers. It was found that the electrical stability of P3HT films during stretching is better when stretched perpendicular to the c-axis. In addition, the evolution of the multiscale structure of P3HT films under stretching conditions was explored.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Licheng Sang, Weiyi Yang, Shuang Gao, Suhua Li, Jian Ku Shang, Qi Li
Summary: This study discovered a new type of organic semiconductor-based photocatalyst, polyacrylonitrile (PAN), which has good light absorption and appropriate electronic band structure to degrade organic pollutants and disinfect bacteria under simulated solar illumination. The PAN photocatalyst shows good stability, reusability, and suitability for practical application in real water matrix, especially as wearable products with self-disinfection property.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Naoki Okada, Kohei Sato, Moegi Yokoo, Erina Kodama, Shinji Kanehashi, Takeshi Shimomura
Summary: Aerogels containing P3HT nanofibers in a PS matrix were fabricated by freeze-drying and doped with iodine vapor. The aerogels exhibited low thermal conductivity and high Seebeck coefficient, showing potential for thermoelectric applications. The relationship between Seebeck coefficient and conductivity varied at different dopant concentrations, with a giant Seebeck coefficient attributed to unique morphology and energy filtering effects.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Polymer Science
Sanhanut Kesornsit, Chatrawee Direksilp, Katesara Phasuksom, Natlita Thummarungsan, Phimchanok Sakunpongpitiporn, Kornkanok Rotjanasuworapong, Anuvat Sirivat, Sumonman Niamlang
Summary: Poly(3-hexylthiophene) (P3HT) was synthesized by chemical oxidative polymerization using ferric chloride (FeCl3) as the oxidizing agent and various surfactants as shape templates. The effects of mole ratios, polymerization times, and surfactant types and concentrations on the electrical conductivity and particle properties were investigated. The results showed that P3HT synthesized with dodecylbenzenesulfonic acid (DBSA) at Critical Micelle Concentration (CMC) 6 had the highest electrical conductivity and particle size of 1530 +/- 227 nm. The thermal analysis revealed that surfactant-synthesized P3HT had higher stability and char yields. The electrical conductivity of DBSA-synthesized P3HT was further enhanced by doping with HClO4.
Article
Chemistry, Analytical
S. C. Perry, S. Arumugam, S. Beeby, I. Nandhakumar
Summary: A template-free method for electrochemical deposition of P3HT has been developed. Electrodeposition is preceded by an electrochemical nucleation step, enabling the production of a uniform film without the need for pre-treatment of the electrode surface. The resulting film is highly nanostructured, conductive, and easily delaminates for analysis. This technique offers a simple route to conductive organic films for various applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Daisuke Takajo, Hiroyasu Katsuno, Koichi Sudoh
Summary: We have conducted a study on the dynamics of poly(3-hexylthiophene) (P3HT) monolayers at the interfaces between highly oriented pyrolytic graphite (HOPG) and P3HT solutions in 1,2,4-trichlorobenzene using scanning tunneling microscopy (STM). Real-time STM observation at room temperature has shown that P3HT molecules adsorbed on graphite exhibit substantial mobility even in densely packed conditions, leading to significant fluctuations of the self-organized monolayer of P3HT. Our findings demonstrate that in the monolayers, the orientational order is limited to a short range comparable to the polymer chain length. We have also conducted kinetic Monte Carlo simulations based on a 2D semiflexible lattice polymer model to explain our observations.
Article
Chemistry, Physical
Hyewon Park, Hyeonjung Park, Hyungju Ahn, Wooseop Lee, Jinseok Park, Bumjoon J. Kim, Dong Ki Yoon
Summary: Nanoconfinement is an effective strategy to control the orientations and orderings of conjugated polymers (CPs). The study investigates the chain orientations of two crystal polymorphs, Form I and Form II, in poly(3dodecylthiophene)s (P3DDTs) using a porous anodic aluminum oxide (AAO) template. The results show that the pore diameter of the AAO template and the regioregularity (RR) of P3DDTs affect the orientational changes of Form I and Form II crystals, providing guidelines for achieving CPs with controlled intermolecular assembly and chain orientations.
CHEMISTRY OF MATERIALS
(2023)
Article
Polymer Science
Morongwa E. Ramoroka, Siyabonga B. Mdluli, Vivian S. John-Denk, Kwena D. Modibane, Christopher J. Arendse, Emmanuel I. Iwuoha
Summary: This report focuses on the synthesis of a novel material, TTT-co-P3HT, as a donor material for organic solar cells. The synthesized TTT-co-P3HT showed potential with broader electrochemical and optical band-gaps compared to P3HT, but exhibited insufficient electron/hole separation and charge transfer. Ultimately, the devices using TTT-co-P3HT had a significantly lower power conversion efficiency than those using P3HT.
Article
Materials Science, Composites
Zhixiong Liao, Shichao Wang, Chunmei Gao, Lei Wang
Summary: Chemical doping and thermal annealing are combined to optimize the thermoelectric property of Poly(3-hexylthiophene) (P3HT). The film doped with FeCl3 exhibits the highest thermoelectric performance, and the electrical conductivity increases by 42% after thermal annealing treatment. This investigation demonstrates that combining chemical doping and thermal annealing is a feasible strategy to improve the thermoelectric performance of the conjugated polymer.
COMPOSITES COMMUNICATIONS
(2022)
Article
Polymer Science
Ramin Hosseinabad, Jesse Kuebler, Lucia Fernandez-Ballester
Summary: The melt-crystallization of conjugated polymers is a potential environmentally-friendly solution processing alternative. However, the specific role of molecular attributes and control strategies are not well understood. This study shows that the effects of chain length on crystallization depend on the amount of chain defects. Melt self-seeding can manipulate the crystallization temperature, especially for longer and more defective chains. Overall, controlling and reporting regioregularity and molecular weight are crucial.
Article
Engineering, Biomedical
Filippo Monti, Giovanni Manfredi, Ilaria Elena Palama, Alessandro Kovtun, Mattia Zangoli, Stefania D'Amone, Luca Ortolani, Gaia Bondelli, Tomasz Szreder, Krzysztof Bobrowski, Mila D'Angelantonio, Guglielmo Lanzani, Francesca Di Maria
Summary: This study investigates the feasibility of sterilizing P3HT-NPs water suspension with ionizing radiation, finding that different radiation sources have minimal impact on the characteristics of NPs, but different radiation doses and dose rates can affect their physicochemical properties. An absorbed dose of 10 kGy is already sufficient for effective sterilization of the colloidal suspension.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yuqian Yang, Qiu Xiong, Jihuai Wu, Yongguang Tu, Tianxiao Sun, Guixiang Li, Xuping Liu, Xiaobing Wang, Yitian Du, Chunyan Deng, Lina Tan, Yuelin Wei, Yu Lin, Yunfang Huang, Miaoliang Huang, Weihai Sun, Leqing Fan, Yiming Xie, Jianming Lin, Zhang Lan, Valerio Stacchinii, Artem Musiienko, Qin Hu, Peng Gao, Antonio Abate, Mohammad Khaja Nazeeruddin
Summary: This study introduces a novel strategy of spinodal decomposition to create a poly(3-hexylthiophene)/perovskite (P3HT/PVK) heterointerface, effectively reducing energy and carrier losses in perovskite solar cells (PSCs). The P3HT/PVK heterointerface improves energy alignment, reducing energy loss at the interface, and the interpenetrating structure bridges a transport channel, decreasing carrier loss at the interface. This innovative approach achieves a remarkable power conversion efficiency of 24.53% for PSCs.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Mark Clyde Staub, Shichen Yu, Christopher Yuren Li
Summary: This study reports the fabrication of polymer crystalsomes formed by 1D polymer crystals. P3HT crystalsomes were successfully prepared using a miniemulsion solution crystallization method, and their properties were examined through microscopy and diffraction experiments. The results reveal curvature-dependent structural, thermal, and electro-optical properties of P3HT crystalsomes.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Szilveszter Gaspar, Tiziana Ravasenga, Raluca-Elena Munteanu, Sorin David, Fabio Benfenati, Elisabetta Colombo
Summary: Template-assisted electrochemical synthesis can easily produce P3HT nanowires of different lengths and diameters that generate measurable photocurrents upon illumination. Additionally, primary cortical neurons can grow on these nanowires without affecting their viability and electrophysiological properties.
Article
Engineering, Electrical & Electronic
Paromita Bhattacharjee, Himakshi Mishra, Parameswar Krishnan Iyer, Harshal Bhalchandra Nemade
Summary: For the first time, an organic semiconductor, regioregular poly(3-hexylthiophene) (rrP3HT), based excitonic transistor on a piezoelectric YZ lithium niobate substrate is reported. The surface acoustic wave (SAW) field ionizes the excitons, storing the charge pair in the SAW modulated potential field in the semiconductor and carrying them forward. Long-range transport up to 4.7 mm at room temperature has been demonstrated. Exciton flux can be electrically controlled using SAW propagating through a dual metal-insulator-semiconductor (MIS) structure. The device's working mechanism has been verified through numerical analysis using MATLAB and its potential use as an all optical device has been electrically confirmed with additional electrode terminals at the output end.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Shigeru Sugiyama, Yasunori Hayashi, Ikumi Okitsu, Naohiro Shimoda, Masahiro Katoh, Akihiro Furube, Yuki Kato, Wataru Ninomiya
Article
Chemistry, Physical
Issei Aibara, Chih-Hao Huang, Tetsuhiro Kudo, Roger Bresoli-Obach, Johan Hofkens, Akihiro Furube, Hiroshi Masuhara
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Physics, Applied
Luchao Du, Xiaoping Shi, Guirong Zhang, Akihiro Furube
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Physics, Applied
Siddhant Dhongade, Pankaj Koinkar, Akihiro Furube, Satoshi Sugano
Summary: This study demonstrates the synthesis of graphene oxide micro-ribbons using a chemical assisted-laser ablation method, confirming the formation of GO through UV-visible spectroscopy and Raman spectroscopy, and discussing a possible mechanism for the growth of GO nanoribbon. This work suggests a new approach to develop GO nanostructures and related nanomaterials.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Chemistry, Physical
Siddhant Dhongade, Pankaj Koinkar, Tetsuro Katayama, Yutaro Maki, Akihiro Furube
Summary: The ternary composite In2Se3/ZnO/Au-nanoparticle fabricated using hydrothermal and laser ablation techniques exhibited superior photocatalytic performance, attributed to factors such as active participation of ZnO conduction band, large surface area, excitation of In2Se3 and Au nanoparticles. The efficient photocatalytic activity was further supported by the ultrafast transient absorption spectroscopy showing faster electron transfer to methylene blue for reduction. This study provides new insights into developing efficient high-performance photocatalysts based on ternary composites.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Physical
Shigeru Sugiyama, Ikumi Okitsu, Kazuki Hashimoto, Yutaro Maki, Naohiro Shimoda, Akihiro Furube, Yuki Kato, Wataru Ninomiya
Summary: UV-LED irradiation of the Ag-Na/SrCO3 catalyst system, despite lacking typical photocatalysts, led to significant improvement in selectivity and yield of propylene oxide, possibly due to plasmon excitation mechanism of silver.
Article
Physics, Applied
Kejun Wu, Pankaj Koinkar, Akihiro Furube
Summary: In this study, a ternary photocatalyst was prepared using a simple hydrothermal method, consisting of WS2 nanosheets, TiO2, and Au nanoparticles. The analysis of the prepared sample's morphology and spectroscopic properties was conducted with SEM, Raman spectroscopy, and UV-vis photospectroscopy. The photocatalytic activity of the ternary composite showed enhanced performance in degradation of methylene blue dye under visible light.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Physics, Applied
Pankaj Koinkar, Kohei Sasaki, Tetsuro Katayama, Akihiro Furube, Satoshi Sugano
Summary: This study successfully synthesized tungsten disulfide (WS2) nanorods using pulsed laser ablation in liquid (PLAL) method, and confirmed their surface morphology, phase, and structure through various analysis techniques. A possible growth mechanism for WS2 was proposed, opening up a new pathway for the preparation of 2D materials with specific morphology.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Chemistry, Multidisciplinary
Shodai Hasebe, Yuki Hagiwara, Jun Komiya, Meguya Ryu, Hiroki Fujisawa, Junko Morikawa, Tetsuro Katayama, Daiki Yamanaka, Akihiro Furube, Hiroyasu Sato, Toru Asahi, Hideko Koshima
Summary: This study reports on photothermally driven fast-bending actuation of a crystal, with successful simulation of the driving process. Thick crystals can bend quickly, while thin crystals bend due to photoisomerization. High-frequency bending is also achievable through the photothermal effect.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Shodai Hasebe, Yuki Hagiwara, Kyoko Takechi, Tetsuro Katayama, Akihiro Furube, Toru Asahi, Hideko Koshima
Summary: Mechanically responsive materials have been extensively studied in the past two decades. In this research, two polymorphic crystals of a salicylideneaniline derivative were investigated for their different photomechanical behaviors. The results showed that these crystals could achieve distinct bending motions through photoisomerization and photothermal effects, offering a novel approach to diversify the mechanical motions of molecular crystals and expand their potential and versatility as actuation materials.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Vikas Nandal, Ryota Shoji, Hiroyuki Matsuzaki, Akihiro Furube, Lihua Lin, Takashi Hisatomi, Masanori Kaneko, Koichi Yamashita, Kazunari Domen, Kazuhiko Seki
Summary: The study examines the dynamics of photogenerated charge carriers in the oxysulfide semiconductor Y2Ti2O5S2 through transient diffuse reflectance spectroscopy measurements and theoretical calculations, revealing potential for visible-light-induced overall water splitting. Various efficiency limiting material parameters are estimated, with proposed design routes to achieve efficiency beyond 10% for commercial solar-to-hydrogen production from oxysulfide photocatalysts. Longer effective carrier lifetime is demonstrated compared to metal oxides.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Organic
Fumitoshi Yagishita, Keita Hoshi, Shoma Mukai, Takashi Kinouchi, Tetsuro Katayama, Yasushi Yoshida, Keiji Minagawa, Akihiro Furube, Yasushi Imada
Summary: Two boron complexes of 3-(o-hydroxyphenyl)imidazo[1,5-a]pyridine were synthesized and showed blue emission in solution. The position of the phenolic substituent in the boron complex affected the excites state dynamics involved in photoluminescence. Introduction of the substituent at the 3-position resulted in a decrease in PL quantum yield.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Physics, Applied
Kejun Wu, Pankaj Koinkar, Akihiro Furube
Summary: By combining transition metal dichalcogenide WS2 and gold nanoparticles with titanium dioxide, the WS2/TiO2/Au composite showed enhanced photocatalytic performance under visible light, making it suitable for future photocatalytic applications.
MODERN PHYSICS LETTERS B
(2022)
Article
Physics, Applied
Daichi Nakayama, Pankaj Koinkar, Tetsuro Katayama, Akihiro Furube
Summary: This paper presents a study on the synthesis of SnO2 nanoparticles using nanosecond laser ablation in various aqueous solvents. The obtained nanoparticles were characterized using various techniques including UV-visible spectroscopy, TEM, SEM, and EDS. The results showed that the absorption characteristics and morphology of the nanoparticles were influenced by the original SnO amount in the solvent. The synthesized nanoparticles exhibited irregular shapes with sizes of 10-20 nm, and a three-dimensional octahedral structure composed of fine nanoparticles was also observed.
MODERN PHYSICS LETTERS B
(2022)
Article
Chemistry, Multidisciplinary
Keita Hoshi, Masami Itaya, Koki Tahara, Airi Matsumoto, Atsuhi Tabata, Hideaki Nagamune, Yasushi Yoshida, Eiji Hase, Takeo Minamikawa, Takeshi Yasui, Tetsuro Katayama, Akihiro Furube, Keiji Minagawa, Yasushi Imada, Fumitoshi Yagishita
Summary: The synthesized cyan fluorescent boron complex shows potential applications as a chiroptical material and a heavy-atom-free mitochondria-targeted photosensitizer for cancer treatment.