Article
Materials Science, Multidisciplinary
Kushal Bagchi, Tadej Emersic, Zhongyang Wang, Wen Chen, Mincheol Kim, Christopher Eom, Zhang Jiang, Joseph Strzalka, Juan J. de Pablo, Paul F. Nealey
Summary: From controlling crystal texture, crystal texture plays a central role in determining the key properties of solids especially in organic electronics. A new facile method has been reported to create biaxially textured crystals of thin films of discotic organic semiconductor, HAT6. The method includes self-assembly of the precursor discotic liquid crystalline state and transferring the biaxial alignment and directionality of & pi;-stacking from the liquid crystalline phase to the crystalline state through rapid cooling.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Organic
Bruno Salgues, Rudraditya Sarkar, Muhammad Luthfi Fajri, Yatzil Alejandra Avalos-Quiroz, Anne-Doriane Manick, Michel Giorgi, Nicolas Vanthuyne, Yannick Carissan, Christine Videlot-Ackermann, Jorg Ackermann, Gabriel Canard, Jean-Luc Parrain, Boris Le Guennic, Denis Jacquemin, Muriel Amatore, Laurent Commeiras, Elena Zaborova, Frederic Fages
Summary: The novel di(benz[f]indenone)-fused tetraazaanthracene derivative synthesized in this study showed strong electron-accepting character, making it attractive for the generation of n-channel semiconducting materials. It exhibited electron transport in organic field effect transistors and demonstrated potential as an electron acceptor material in organic solar cells.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Libin Liang, Katrina Czar, Madalina Furis
Summary: This research investigates the potential of strain engineering in promoting the formation of delocalized excitonic states in organic semiconductors. The results demonstrate that tensile strain leads to the formation of delocalized excitons, accompanied by enhanced photoluminescence intensity and red shift in peak wavelength. These findings offer promising prospects for achieving delocalization at room temperature through strain engineering.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Huipeng Ma, Feng Lin, Shibo Cheng, Jin-Dou Huang
Summary: In this study, the electronic structures and conducting properties of BN-embedded perylene diimides (B2N2-PDIs) were systematically investigated. The substitution of C-C units with B-N units in the pi-electron core was found to significantly affect the reorganization energies, ionization potential, and electron affinity of the PDIs. It was also revealed that B2N2-PDIs have the potential to be developed as high-efficiency n-type organic semiconductor materials. Additionally, the three-dimensional angular resolution anisotropic mobility of 6-CH, 6-EH, and 6-DIPP was simulated for the first time, and their charge carrier-transport properties were characterized.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Wei-Yang Chou, Po-Hsiang Fang, Fu-Chiao Wu, Yi-Chen Tien, Hwo-Shuenn Sheu, Horng-Long Cheng, Jrjeng Ruan
Summary: This study explored the fabrication and crystallization of low-voltage-driven organic field-effect transistors (OFETs) using an organic polymer as the active layer. Crystalline PBTTT-C-14 with excellent electrical performance was obtained through a thermal gradient system, demonstrating the importance of microstructure in determining the opto-electronic properties of polymer semiconductors.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Yongfan Yang, Lygia Silva de Moraes, Christian Ruzie, Guillaume Schweicher, Yves Henri Geerts, Alan R. Kennedy, Hengyu Zhou, St John Whittaker, Stephanie S. Lee, Bart Kahr, Alexander G. Shtukenberg
Summary: Many molecular crystals grow as twisted, helicoidal ribbons from the melt, and this twisting enhances the charge mobility. The effect of twisting on charge mobility is analyzed for a monocomponent organic semiconductor, and it is found that smaller pitches (more twisted) result in significantly higher carrier mobilities. X-ray scattering and Mueller matrix polarimetry are used to analyze the microscale organization of the polycrystalline films. The greater number of tightly packed twisted fibers in the film allows for better charge transport.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Xinwen Yan, Miao Xiong, Xin-Yu Deng, Kai-Kai Liu, Jia-Tong Li, Xue-Qing Wang, Song Zhang, Nathaniel Prine, Zhuoqiong Zhang, Wanying Huang, Yishan Wang, Jie-Yu Wang, Xiaodan Gu, Shu Kong So, Jia Zhu, Ting Lei
Summary: By carefully designing the structure of conjugated polymers, their tolerance to disorder induced by doping can be increased, leading to better n-doping efficiency and higher electrical conductivity.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Yeran Lee, Juhyung Park, Jaehoon Son, Han Young Woo, Eonghun Kwak
Summary: This study demonstrates an ideal α-σ relationship in two degenerately doped semi-crystalline polymers using a sequential doping method, allowing the power factors to reach theoretical maxima and exhibiting metallic behavior in heavily doped films. The results show that the power factor maxima appear when the doping state switches from non-degenerate to degenerate, indicating the importance of an optimal α-σ relationship in enhancing TE performance and understanding charge transport in doped polymers.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Tucker L. Murrey, Melissa Berteau-Rainville, Goktug Gonel, Jan Saska, Nikolay E. Shevchenko, Alice S. Fergerson, Rachel M. Talbot, Nichole L. Yacoub, Fengyu Zhang, Antoine Kahn, Mark Mascal, Ingo Salzmann, Adam J. Moule
Summary: Conjugated polymers can be chemically tailored for different electronic device applications. The relationship between conductivity, mobility, and charge density is poorly understood, but studies have shown that the polaron density has a larger effect on increasing both conductivity and charge mobility than changes in the polymer chemistry or structure.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Yao Chen, Jianglin Wu, Shirong Lu, Antonio Facchetti, Tobin J. Marks
Summary: In this study, the structural and electronic properties trends of a series of n-type semiconducting copolymers were evaluated. The reduction of NDI carbonyl groups was found to increase the LUMO energy. Additionally, the thienyl attachment regiochemistry played a significant role in the performance of the copolymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Colin Tyznik, James Lee, Jeni Sorli, Xiaojie Liu, Emma K. Holland, Cynthia S. Day, John E. Anthony, Yueh-Lin Loo, Z. Valy Vardeny, Oana D. Jurchescu
Summary: The study shows that by adjusting the microstructure of the electronically active layers at the interface of hybrid organic-inorganic metal-halide perovskites and organic semiconductors, the photocurrent response can be significantly enhanced, leading to improved performance of photodetectors.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Dominique Mombru, Mariano Romero, Ricardo Faccio, Alvaro W. Mombru
Summary: In this study, ab initio molecular dynamics calculations were used to investigate mixed ionic-electronic transport in a poly(3-hexylthiophene) crystalline supercell, with full explicit lithium-based dopants and additives. The research revealed interesting behavior associated with the presence of specific dopants and additives and showed good correlation with experimental reports, advancing the understanding of the doping and mixed ionic-electronic transport mechanisms in organic semiconductors.
Article
Chemistry, Multidisciplinary
Jongbok Lee, Shi Li, Xiaozhou Ji, Sai Che, Yirui Cao, Daniel P. Tabor, Lei Fang
Summary: This study investigates the factors affecting the doping mechanism of organic semiconductors using neutral dopants. The results show that the extended, rigid, and coplanar pi-faces play a crucial role in the doping interaction. This work provides principles for the molecular design of organic semiconductors and dopants.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Marc-Antoine Stoeckel, Yoann Olivier, Marco Gobbi, Dmytro Dudenko, Vincent Lemaur, Mohamed Zbiri, Anne A. Y. Guilbert, Gabriele D'Avino, Fabiola Liscio, Andrea Migliori, Luca Ortolani, Nicola Demitri, Xin Jin, Young-Gyun Jeong, Andrea Liscio, Marco-Vittorio Nardi, Luca Pasquali, Luca Razzari, David Beljonne, Paolo Samori, Emanuele Orgiu
Summary: Charge transport in organic semiconductors is highly sensitive to disorder, especially in n-type materials, due to internal dynamic disorder caused by thermal fluctuations and molecular vibrations. This disorder can lead to transient localization of charge carriers.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
David Trieb, Paul W. M. Blom, Gert-Jan A. H. Wetzelaer
Summary: A general method is proposed to achieve an ohmic electron contact in organic semiconductor devices by inserting a thin organic interlayer between the metal electrode and the organic semiconductor. It is demonstrated that this interlayer can significantly enhance the injected electron current by over three orders of magnitude. The formation of an ohmic contact is attributed to the elimination of barrier formation through direct contact between the metal and organic semiconductor. Additionally, it is shown that solution processing of such interlayers on top of organic semiconductors is feasible.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Physics, Multidisciplinary
Mohamed R. Eid, Ahmed F. Al-Hossainy
Summary: The [PG-MoS2/ZrO2]C hybrid nanofluid films were fabricated using a sol-gel method, and their structure, flow, and heat transport properties were investigated. The results showed that the addition of ZrO2 nanoparticles enhanced the flow performance and heat transport rate of the nanofluid.
WAVES IN RANDOM AND COMPLEX MEDIA
(2023)
Article
Materials Science, Multidisciplinary
Ahmed F. Al-Hossainy, Amal Y. Sediq, Safwat A. Mahmoud
Summary: In this study, [DPPP + Gly/ZrO2] nanocomposite thin films were synthesized using PVD technology and optimized with DFT method. The nanocomposite thin films showed promising optical properties through analysis by different techniques, making them suitable for optoelectronics and solar cell applications.
ELECTRONIC MATERIALS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
M. S. Ahmed, T. M. Zewail, E-S Z. El-Ashtoukhy, H. A. Farag, I. H. El Azab, F. A. Albatati, A. F. Al-Hossainy, M. Sh Zoromba, M. H. Abdel-Aziz
Summary: The research examines the impact of a stationary wiper almost touching a revolving zinc solid cylinder on the rate of Cu+2 cementation. The study finds that the mass transfer coefficient accelerates as rotation speed and quantity of Cu+2 increase, with the presence of a wiper enhancing the degree of Cu+2 cementation. The data has been interrelated by dimensionless equations for the sizing and running of rotating cylinders used for diffusion-restricted reactions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
A. Bourezgui, A. F. Al-Hossainy, I. H. El Azab, F. Alresheedi, S. A. Mahmoud, M. Bassyouni, M. H. Abdel-Aziz, M. Sh Zoromba
Summary: Poly(ortho-phenylenediamine) micro-rods are synthesized and thin films are fabricated through physical vapor deposition method, which are characterized and interpreted using various techniques. The optimization based on density functional theory provides a thorough understanding of the optical properties of the thin films.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
M. Sh. Zoromba, M. H. Abdel-Aziz, M. Bassyouni, A. Attar, A. F. Al-Hossainy
Summary: Hydrochloric acid doped poly (ortho-aminophenol-co-para-toluidine) as a conjugated semiconducting copolymer was synthesized in acidic medium via oxidative polymerization. The resulting thin film was characterized for its structural, morphological, and optical properties, showing promising applications in optoelectronic devices based on data from optical analysis and conductivity measurements. The optical dispersion of the thin film was described using the Wemple-Didomenico model, and density-functional theory calculations were conducted to further study its properties.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
N. Almutlaq, A. F. Al-Hossainy, M. Sh Zoromba
Summary: Hydrochloric acid doped poly (p-nitroaniline -co- o-aminophenol) [PpNAoAP] was synthesized and a thin film was fabricated, characterized, and optimized. The optical properties of the film were in good agreement with the computational results, indicating its potential for optoelectronic devices and polymer-solar cell applications.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Physics, Multidisciplinary
Ahmed F. Al-Hossainy, Mohamed R. Eid
Summary: This article examines the heat transport of MHD radiative Carreau hybrid nanofluid and highlights the impact of different variable parameters on velocity, temperature profiles, drag force factor, and local Nusselt number. The study findings show that incorporating Fe3O4 transforms [PEG+H2O/SiO2] from a semiconductor to [PEG+H2O/SiO2+Fe3O4] as a superconductor, with hybrid nanoparticles having a greater influence on velocity distributions than nanoparticles.
WAVES IN RANDOM AND COMPLEX MEDIA
(2021)
Article
Thermodynamics
Mohamed R. Eid, Ahmed F. Al-Hossainy
Summary: The thermal characteristics of mono and hybrid nanofluid convective flows over a slippage permeable curved surface were studied. It was found that higher curvature of the surface leads to a decrease in temperature while increasing flow velocity. The rate of heat transfer is enhanced with the increase in radiative and suction flow.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Chemistry, Physical
Mohamed R. Eid, K. L. Mahny, Ahmed F. Al-Hossainy
Summary: The study focuses on reactive structures containing chemical reactions, utilizing different techniques to solve partial-differential equations and concluding with improved heat transfer rates related to thermal conductivity and suction parameters.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Mohamed Abd El-Aal, Roaa T. Mogharbel, Ali Ibrahim, N. Almutlaq, Mohamed Sh Zoromba, Ahmed F. Al-Hossainy, Samia M. Ibrahim
Summary: A novel ZrO2-acriflavine nanocomposite thin film was synthesized and characterized. The film showed good optical properties and crystallite size, making it a promising candidate for optoelectronics and solar cell applications.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Multidisciplinary Sciences
Amina A. Abozeed, Osama Younis, Ahmed F. Al-Hossainy, Nada Abd El-Mawla, Mostafa Sayed, Adel M. Kamal El-dean, Mahmoud S. Tolba
Summary: This study presents the characterization of a heterocyclic compound with thienopyrimidine and pyran moieties using various techniques. The compound showed interesting optical and photophysical properties, including energy bandgaps, absorption wavelength, and emission behavior. These findings suggest the potential application of this compound in the development of attractive new luminous materials.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Wasim Jamshed, Mohamed R. Eid, Ahmed F. Al-Hossainy, Zehba Raizah, El Sayed M. Tag El Din, Tanveer Sajid
Summary: This study focuses on evaluating entropy in a porous medium of Williamson nanofluid flow past a Parabolic Trough Solar Collector (PTSC) using copper-methanol and alumina-methanol nanofluids. The nanoparticles are analyzed through simulations and experimental measurements, and the effects of different parameters on the system's entropy and thermal efficiency are investigated.
SCIENTIFIC REPORTS
(2022)
Article
Polymer Science
M. Sh. Zoromba, M. H. Abdel-Aziz, A. R. Ghazy, N. Salah, A. F. Al-Hossainy
Summary: Conducting poly orthophenylene diamine polymer (PoPDA) was synthesized via oxidative polymerization, and a poly(o-phenylene diamine) (PoPDA)/titanium dioxide nanoparticle mono nanocomposite [PoPDA/TiO2](MNC) was synthesized using the sol-gel method. The physical vapor deposition (PVD) technique was successfully used to deposit the mono nanocomposite thin film with good adhesion and a film thickness of approximately 100±3 nm. The [PoPDA/TiO2](MNC) thin films were characterized using X-ray diffraction (XRD) and scanning electron microscope (SEM), and their optical properties were studied using UV-Vis-NIR spectroscopy.
Article
Chemistry, Multidisciplinary
Ahmed A. Al-Hossainy, Ali Ibrahim, Roaa T. Mogharbel, Samia M. Ibrahim
Summary: A crystalline [BTB](Keto) was successfully synthesized in different media at 25 degrees C based on an oxidation method in the presence of potassium permanganate. The redox reactions occur in alkaline and acidic media, with distinct stages observed in alkaline medium and a single stage in acidic medium. The resulting dye particles and thin films show promising potential for applications in optoelectronics and solar cells based on various characterization techniques.
Article
Chemistry, Multidisciplinary
Samia M. Ibrahim, Ahmed F. Al-Hossainy
Summary: The oxidation of bromothymol blue by oxyanion potassium permanganate in acid solution has been studied kinetically, revealing the reaction mechanism and kinetic parameters. Various techniques were used for characterization, showing the formation of keto bromothymol blue and the acid-catalyzed oxidation process. Theoretical simulations with density functional theory and experimental studies showed good agreement regarding the optical properties and molecular structure changes.
