Review
Energy & Fuels
Lin-Long Deng, Xin-Xing Zhan, Jheng-Wei Lin, Rong-Ming Ho, Lan-Sun Zheng, Su-Yuan Xie
Summary: This review article outlines recent progresses on isomerism of PCBMs, focusing on the effects of PCBMs isomers on the photovoltaic performance and device stability of organic or perovskite solar cells. Open questions and future directions involving isomeric PCBMs are also discussed.
Article
Optics
Hemlata Bisht, Abhinav Pratap Singh, Satyabrata Jit, Hirdyesh Mishra
Summary: This paper presents a detailed study on the photophysics of [6,6]-phenyl C61 butyric acid methyl ester (PCBM) in chloroform solution using steady-state and time-domain fluorescence measurements. PCBM exhibits strong absorption in the UV region and weak absorption in the visible range, with no concentration-dependent effects on the absorption profile. PCBM shows dual-structured blue and red emission bands, with the intensity of the blue band increasing and then decreasing with concentration, while the intensity of the red band decreases with increasing concentration. At higher concentrations, a new emission band around 715 nm emerges, showing the possibility of excimer emission. The monomeric unit has a fluorescence decay time of 3.0 ns, while the excimer decay time is around 1.4 ns, and the charge transfer band exhibits multi-exponential fluorescence decay.
JOURNAL OF LUMINESCENCE
(2023)
Article
Nanoscience & Nanotechnology
Xingjuan Ma, Jiaqi Kong, Wei Wang, Xin Li
Summary: Flexible perovskite solar cells (fPSCs) with inverted structure and high efficiencies can be achieved by using 2-methylanisole (2-MEA) as a green solvent for the n-type material PCBM. The use of 1,8-diiodooctane (DIO) as a solvent additive further enhances the solubility of PCBM in 2-MEA solution, leading to improved efficiencies of the flexible PSCs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jien Yang, Meng Zhang, Qiong Zhang, Chaochao Qin, Ruiping Qin, Sagar M. Jain, Hairui Liu
Summary: In this study, [6,6]-Phenyl C-61 butyric acid (PCBA) modified zinc oxide nanorods (ZnO NRs) were used as the electron transport layer in perovskite solar cells. The resulting perovskite film coated on the zinc oxide nanorods had improved crystallinity and uniformity, which facilitated charge carrier transportation, reduced recombination losses, and ultimately improved the cells' performance.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Naharullah Jamaluddin, Yu- Hsu, Taka-Aki Asoh, Hiroshi Uyama
Summary: In this study, nanocomposites of PMMA and CNFp were successfully prepared using a solution casting technique. The experimental results showed that CNFp exhibited good compatibility and uniform dispersion in the PMMA matrix, indicating great potential for various applications.
Article
Chemistry, Physical
Ramachandran Rajamanickam, Senthan Sivakolunthu, Jayanthi Sampathkumar
Summary: In this study, the compound BPZ was synthesized using Ce-MCM-48 catalyst and characterized by various spectroscopic techniques. Molecular structure was optimized using DFT, and the compound's interactions with the COVID-19 protein structure were investigated through molecular docking study, revealing significant hydrogen bonding interactions.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Polymer Science
Stepan A. Ostanin, Alexei V. Kalinin, Yurij Yu. Bratsyhin, Natalia N. Saprykina, Vjacheslav V. Zuev
Summary: Multiblock copolymers containing linear polydimethylsiloxane or polymethyltrifluoropropylsiloxane and ladder-like polyphenylsiloxane were synthesized in a one-step pathway. The ladder-like block contains silanol units, which influence the adhesion properties of multiblock copolymers and morphology of their casted films. The SEM study of casted films of multiblock copolymers shows the variety of formed morphologies, including long-strip-like or globular.
Article
Chemistry, Physical
Yuning Liu, Biyu Long, Renjie Chen, Sumei Huang, Wei Ou-Yang, Xiaohong Chen
Summary: The power conversion efficiency of NiOx-based perovskite solar cells has significantly increased in recent years, reaching over 20%. By doping PVK with a small amount of PCBM, the stability of the perovskite layer is improved, leading to enhanced carrier transport, reduced recombination, and increased PCE to 20.91%. Additionally, the PCBM-doped PVK modification also enhances anti-UV, moisture, and thermal resistance in the perovskite solar cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Physics, Applied
T. Schulz, S. -H Yoo, L. Lymperakis, C. Richter, E. Zatterin, A. Lachowski, C. Hartmann, H. M. Foronda, C. Brandl, H. J. Lugauer, M. P. Hoffmann, M. Albrecht
Summary: The influence of edge-type threading dislocations (TDs) on the epitaxial growth of AlGaN on native AlN substrates was investigated. It was found that pure edge-type TDs can cause pinning of surface steps and result in curved step segments. The pinning mechanism is mediated by the altered surface potential due to the strain field imposed by the TD. The pinning of surface steps also leads to areas with increased step width, serving as precursors for 2D nucleation.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Antanas Straksys, Dalia Brazinskiene, Sandra Maciulyte
Summary: Thermal degradation of FAME was conducted on low carbon steel coupons using a thin film method. The results showed that the degradation rate of FAME film depended on its thickness, with the 200 μm film degrading faster than the 500 μm film. Solubility tests revealed that degraded FAME had better solubility in xylene compared to heptane and fresh FAME.
Article
Thermodynamics
H. G. How, Y. H. Teoh, B. Navaneetha Krishnan, T. D. Le, H. T. Nguyen, C. Prabhu
Summary: While electric mobility is slowly becoming a trend in automotive sales, it has not yet received wide acceptance due to limited range. The high energy density of liquid fuel remains unmatched by electric battery performance. The impact of conventional fuels on human health highlights the need for alternative fuel research.
Article
Engineering, Electrical & Electronic
Mir Ghasem Hosseini, Pariya Yardani Sefidi, Solen Kinayyigit
Summary: In this research, modification of polyaniline-WO3 photoelectrocatalyst with efficient fullerene derivative PC61BM has significantly enhanced the water oxidation efficiency, suppressed the recombination of photogenerated electrons and holes, and provided more active sites for oxygen evolution reaction.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Alina A. Sonina, Christina S. Becker, Anatoly D. Kuimov, Inna K. Shundrina, Vladislav Yu. Komarovc, Maxim S. Kazantsev
Summary: This study introduces alkyl substituents in AIE-active thiophenes and investigates their effects on the materials. The results show that the introduction of alkyl groups weakens intermolecular interactions, affecting the crystal structure and optical properties.
Article
Chemistry, Applied
Kexin Liu, You Wu, Yanni Xi, Zhanxiong Li
Summary: A novel synthetic route was proposed to graft poly (amino acid) chains onto the surface of cotton fibers, creating a rough structure with microspherical morphology. By modifying the surface, the fabric exhibited superhydrophobicity and superior stain resistance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Acoustics
A. Rosales, L. Ortiz-Frade, Iliana E. Medina-Ramirez, Luis A. Godinez, K. Esquivel
Summary: The use of sol-gel method coupled to sonochemistry for synthesizing SiO2@TiO2 composite resulted in changes in morphology and surface properties. Higher ultrasonic energy led to the formation of amorphous composite materials and affected the surface characteristics, with significant influence on the hydrolysis process.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Physics, Condensed Matter
Ai Suzuki, Tomoya Taguchi, Huan Li, Yanan Wang, Hirofumi Ishii, Yen-Fa Liao, Hidenori Goto, Ritsuko Eguchi, Yoshihiro Kubozono
Summary: The study investigated the crystal structure and superconductivity of the topological insulator PdBi2 under pressure, revealing stable superconductivity and a high superconducting transition temperature in the beta phase. Unlike the alpha phase, the beta phase did not undergo structural phase transitions under pressure.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Chemistry, Inorganic & Nuclear
Tomoya Taguchi, Yanan Wang, Xiaofan Yang, Huan Li, Yasuhiro Takabayashi, Kouichi Hayashi, Takafumi Miyazaki, Yen-Fa Liao, Hirofumi Ishii, Hidenori Goto, Ritsuko Eguchi, Yoshihiro Kubozono
Summary: The study investigated the pressure dependence of electric transport in Ba0.77Na0.23Ti2Sb2O and identified a structural phase transition at 8-11 GPa that significantly influenced superconductivity, showing a clear relationship between crystal structure and superconductivity.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Huan Li, Tomoya Taguchi, Yanan Wang, Hidenori Goto, Ritsuko Eguchi, Hirofumi Ishii, Yen-Fa Liao, Yoshihiro Kubozono
Summary: The study investigates the pressure dependence of the electrical resistance of superconducting 4d and 5d transition metal compounds CaRh2 and CaIr2, revealing a saturation of their superconducting transition temperatures at high pressures. The crystal structures of CaRh2 and CaIr2 are determined at high pressures, and their superconductivity is analyzed using different pairing models. The report provides a systematic study on the pressure dependence of superconductivity in binary-element compounds containing alkali-earth and 4d or 5d transition metal atoms.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Physics, Condensed Matter
Tomoya Taguchi, Mitsuki Ikeda, Huan Li, Ai Suzuki, Xiaofan Yang, Hirofumi Ishii, Yen-Fa Liao, Hiromi Ota, Hidenori Goto, Ritsuko Eguchi, Yoshihiro Kubozono
Summary: The crystal structures of Sb2Te3-y Se (y) at different pressures were analyzed by synchrotron x-ray diffraction, revealing phase transitions and emergence of superconductivity. Samples with different stoichiometries exhibited distinct structural transitions and superconducting behaviors under increasing pressure.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Chemistry, Multidisciplinary
Yanting Zhang, Ritsuko Eguchi, Shino Hamao, Hideki Okamoto, Hidenori Goto, Yoshihiro Kubozono
Summary: This study provides a precise evaluation of the field-effect mobility mu in organic thin-film and single-crystal FETs using a new indicator called effective field-effect mobility mu(eff). The FET performance based on mu(eff) values is discussed, showing that mu(eff) values of single-crystal FETs are consistent with previous mu values, while mu(eff) values of thin-film FETs are lower due to a high absolute threshold voltage.
Article
Chemistry, Physical
Ai Suzuki, Mitsuki Ikeda, Hirofumi Ishii, Yen -Fa Liao, Yasuhiro Takabayashi, Kouichi Hayashi, Hidenori Goto, Ritsuko Eguchi, Yoshihiro Kubozono
Summary: New superconducting materials Pd1-xPtxBi2 were prepared via Pt doping of PdBi2, with the highest Tc value of 4.35 K observed at x = 0.12. The study investigated the crystal structure and superconducting transition temperature of Pd0.88(6)Pt0.12(6)Bi2.2(2) over a wide pressure range, showing a shift in superconducting behavior from alpha phase to beta phase with increasing pressure.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Yanting Zhang, Shino Hamao, Hidenori Goto, Yoshihiro Kubozono, Hideki Okamoto, Kunihisa Sugimoto, Nobuhiro Yasuda, Akihiko Fujiwara, Ritsuko Eguchi
Summary: Researchers have demonstrated the high carrier transport capability of molecules with extended conjugation in small molecules, highlighting its significance in the development of high-performance organic electronic devices and new applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Inorganic & Nuclear
Mitsuki Ikeda, Ai Suzuki, Yanting Zhang, Hidenori Goto, Ritsuko Eguchi, Yen-Fa Liao, Hirofumi Ishii, Yoshihiro Kubozono
Summary: The crystal structure and superconducting properties of a new type of titanium-pnictide superconductor, BaTi2(Sb1-yBiy)2O (y = 0.2, 0.5, and 0.8), were comprehensively investigated to understand the effect of substituting Bi for Sb on the superconducting behavior.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Mitsuki Ikeda, Zhiyan Zhang, Hidenori Goto, Ritsuko Eguchi, Yen-Fa Liao, Hirofumi Ishii, Yoshihiro Kubozono
Summary: This paragraph provides the personal information of Yoshihiro Kubozono, a researcher at the Research Institute for Interdisciplinary Science, Okayama University, Japan. It includes his affiliation, research interests, and contact details.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Kazumasa Horigane, Masayuki Tadokoro, Ritsuko Eguchi, Hirofumi Ishii, Shinichi Nakamura, Takashi Kambe, Naoshi Ikeda, Hidenori Goto, Yoshihiro Kubozono, Jun Akimitsu
Summary: A graphite-like material BCx and its precursor phase were synthesized and characterized in this study. High-temperature annealing was found to improve the crystallinity and physical properties of BCx. Ti intercalation into the BCx system was found to compensate hole carriers and alter its magnetic properties.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Yanting Zhang, Ritsuko Eguchi, Hideki Okamoto, Kenta Goto, Fumito Tani, Minoru Yamaji, Hidenori Goto, Yoshihiro Kubozono
Summary: Alkyl-phenyl[n]phenacenes with different alkyl substituents were synthesized and investigated for their application in high-performance thin-film FET devices. Among them, PhC10-PIC showed the highest field-effect mobility.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Huan Li, Mitsuki Ikeda, Ai Suzuki, Tomoya Taguchi, Yanting Zhang, Hidenori Goto, Ritsuko Eguchi, Yen-Fa Liao, Hirofumi Ishii, Yoshihiro Kubozono
Summary: This study investigates the structural and superconducting properties of alkali-Bi-based compounds KBi2 and RbBi2 under a wide range of pressures. The results demonstrate the presence of two superconducting phases in low-pressure range and the decomposition of KBi2 into KBi and Bi at high pressures. The stability of superconducting properties for RbBi2 is relatively constant under pressure. Additionally, the study explores the deviation of superconducting Cooper pair symmetry from the simple s-wave pairing model, indicating the complex electronic structure of Bi.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Yanan Wang, Tomoya Taguchi, Huan Li, Ai Suzuki, Yanting Zhang, Akari Miura, Mitsuki Ikeda, Hidenori Goto, Ritsuko Eguchi, Takafumi Miyazaki, Yen-Fa Liao, Hirofumi Ishii, Yoshihiro Kubozono
Summary: In this study, preparation and characterization of BaBi3 were reported using DC magnetic susceptibility, powder X-ray diffraction (XRD), and electrical transport to elucidate the superconducting properties under different pressures. The results showed that BaBi3 maintains the alpha phase structure under pressure, while lattice constants and unit cell volume decrease with increasing pressure. This study provides a comprehensive analysis of the superconducting behavior of BaBi3 over a wide pressure range for the first time.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Yanting Zhang, Ritsuko Eguchi, Shino Hamao, Kenta Goto, Fumito Tani, Minoru Yamaji, Yoshihiro Kubozono, Hideki Okamoto
Summary: Dibenzo[n]phenecenes (DBnPs, n = 5-7) were conveniently synthesized through Mallory photocyclization. The effective mobilities of single-crystal field-effect transistors of DBnPs were evaluated, showing that C-2h-symmetrical DB6P performs better than C-2v-symmetrical DB5P and DB7P.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Niko Fioravanti, Luca Pierantoni, Davide Mencarelli, Claudio Turchetti, Shino Hamao, Hideki Okamoto, Hidenori Goto, Ritsuko Eguchi, Akihiko Fujiwara, Yoshihiro Kubozono
Summary: Organic field-effect transistors can be used in RFID tags and flat-panel displays. The study compared two ring oscillators using different FETs and introduced a low-voltage operation with ZrO2 as the gate dielectric material. The higher mobility in p-channel FETs compared to n-channel FETs needs to be addressed to increase oscillation frequency.
Article
Materials Science, Multidisciplinary
Jinfei Dai, Chenjing Zhao, Jie Xu, Hossein Roshan, Hua Dong, Francesco Di Stasio, Fang Yuan, Bo Jiao, Zhaoxin Wu
Summary: In this study, the performance of perovskite nanocrystal light emitting diodes (PNC-LEDs) was enhanced through rational device structure design and the application of high-performance perovskite nanocrystal emitting layers.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Jia-Hua Yeh, Suhendro Purbo Prakoso, Leon Lukhas Santoso, Shi-Ju Chen, Bryan Chiang, Ju-Chieh Cheng, Ru-Ning Zhang, Yu-Cheng Chiu
Summary: This study demonstrates the application of a renewable material called dextrin-SMS in the production of electret filters and transistor memory. Dextrin-SMS material can maintain prolonged electrostatic charges and has a relatively wide memory window, making it suitable for the production of biodegradable face masks and green electronics.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Ahmad Telfah, Qais M. Al-Bataineh, Ahmad A. Ahmad, Rund Abu-Zurayk, Carlos J. Tavares, Johannes Etzkorn, Farzad Foadian
Summary: Polyacrylic acid complexed with polyaniline (PAA/PANI) composite materials have the potential to form organic mixed ion-electron conductive (OMIEC) films, which can be used in optoelectronic and energy storage applications. The composite films are formed through an acid-base reaction, resulting in strong electrostatic interactions and intermolecular hydrogen bonds between PANI and PAA. The separation of PANI-rich domains from PAA-rich matrix in the composite films is observed. The electrical conductivity of the composite films is higher when the content of PANI is 33 wt%, due to the high ionic-electronic coupling at the interface between phase-separated regions.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Min-Chih Hou, Dian Luo, Yu-Ting Huang, Shun-Wei Liu, Chin-Wei Lu, Chih-Hao Chang, Hai-Ching Su
Summary: Light-emitting electrochemical cells (LECs) have great potential for novel emission applications, but their relatively low device efficiency hinders their competitiveness with other emission technologies. A study finds that increasing the concentration of small TiO2 nano-particles in the diffuser film can enhance light extraction and improve the device efficiency of LECs.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Qiaoli Niu, Yao Xu, Jun Yang, Wei Hua, Baoxiang Chai, Zequan Zhang, Yuhui Ma, Wenjin Zeng, Ana Flavia Nogueira, Ruidong Xia
Summary: By introducing CPB as a defect passivation agent in the perovskite precursor solution, the optoelectronic properties of perovskite films can be significantly improved and non-radiative carrier recombination can be effectively suppressed. CPB-modified perovskite solar cells exhibit lower trap-state density and stronger carrier migration capability, leading to enhanced power conversion efficiency and stability.
ORGANIC ELECTRONICS
(2024)
Article
Materials Science, Multidisciplinary
Hulya Ozturk Dogan, Fatma Yildirim, Zeynep Orhan, Ali Ben Ahmed, Mostefa Benhaliliba, Sakir Aydogan
Summary: In this study, efficient self-powered visible and UV photodetectors based on hybrid organic-inorganic materials were demonstrated. The photodetectors showed excellent UV detecting capability and good photoresponsivity.
ORGANIC ELECTRONICS
(2024)
