Article
Engineering, Electrical & Electronic
Jui-Fen Chang, Guang-Ru Huang, Yu-Pei Wu, Chih-Hao Chang, Yu-Jen Lo, Jia-Min Yu
Summary: This study proposes a simple approach to realize high-performance, miniaturized vertical light-emitting transistors (VLETs) by using a highly conductive and well-designed inorganic transistor, specifically a ZnO transistor. The ZnO transistor enables effective electron injection and lateral transport, resulting in improved VLET performance. By systematically studying the source design, the ZnO transistor can be optimized to achieve emission intensity and efficiency close to those of the pristine OLED, with spatially uniform and precisely defined emission controlled by the ZnO pattern.
ACS APPLIED ELECTRONIC MATERIALS
(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
Junfeng Guo, Yan Zeng, Yonggang Zhen, Hua Geng, Zongrui Wang, Yuanping Yi, Huanli Dong, Wenping Hu
Summary: This study utilized non-equal ratio cocrystal engineering to construct cocrystals with more appropriate packing structure through hydrogen bonds and donor-acceptor interactions, leading to an improved carrier mobility of organic semiconductors.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Applied
Lucia Feriancova, Dmitry O. Balakirev, Roman S. Fedorenko, Alexey V. Kuevda, Vasiliy A. Trukhanov, Eugenia A. Svidchenko, Nikolay M. Surin, Svetlana M. Peregudova, Petr V. Dmitryakov, Nikita O. Dubinets, Yuriy V. Fedorov, Martin Putala, Sergey A. Ponomarenko, Dmitry Yu. Paraschuk, Yuriy N. Luponosov
Summary: We report the synthesis of two novel series of thiophene-phenylene co-oligomers with either phenylene or perfluorinated phenylene central core and various electron-withdrawing groups (EWGs). The synthesized oligomers showed thermal stability, crystallinity, low LUMO energies (down to -3.50 eV), narrow bandgaps (down to 1.9 eV), and efficient photoluminescence in the green-deep red spectral regions both in solution and solid-state. The TPCOs with 2-ethylhexyl cyanoacetate EWG were crystallized in large-area single-crystal monolayers, demonstrating their potential as active layers in solution-processed single-layer organic light-emitting transistors.
Article
Chemistry, Multidisciplinary
Haikuo Gao, Zhagen Miao, Zhengsheng Qin, Jiaxin Yang, Tianyu Wang, Can Gao, Huanli Dong, Wenping Hu
Summary: This study proposes an effective solution to achieve uniform area emission in organic light-emitting transistors (OLETs), by incorporating a charge-transport buffer (CTB) layer between the conducting channel and emitting layer. Theoretical simulation and experimental results demonstrate the redistribution of potential beneath the drain electrode, resulting in a highly uniform current density. The constructed RGB OLETs show good gate tunable ability, high loop stability, and high aperture ratio, making them promising for display technology.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Alexandre Bachelet, Sophie Fasquel, Jean-Michel Rampnoux, Gediminas Jonusauskas, Kazuo Takimiya, Lionel Hirsch, Mathias Perrin, Mamatimin Abbas
Summary: Using a single emissive layer, this study achieved color tuning within a wide visible light range (from blue to red) in organic light emitting transistors. The color tuning does not affect the optical turn-on voltages and significantly enhanced external quantum efficiencies are observed for devices with a thick emissive layer. The wide range of color tunability is mainly due to an outcoupling effect through the Fabry-Perot cavity.
Article
Chemistry, Multidisciplinary
Yusheng Chen, Hanlin Wang, Yifan Yao, Ye Wang, Chun Ma, Paolo Samori
Summary: A new type of long-afterglow organic light-emitting transistors (LAOLETs) has been developed, utilizing a photoinduced synaptic effect in an inorganic indium-gallium-zinc-oxide (IGZO) semiconductor channel layer. This allows for persistent electroluminescence in organic light-emitting materials, with the LAOLETs integrated into active-matrix light-emitting arrays functioning as visual UV sensors capable of long-lifetime green-light emission in irradiated regions.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Shu-Jen Wang, Anton Kirch, Michael Sawatzki, Tim Achenbach, Hans Kleemann, Sebastian Reineke, Karl Leo
Summary: Conventional organic optoelectronic devices have low carrier mobility due to disorder. This study presents monolithic integrated triclinic crystal rubrene light-emitting diodes (LEDs) with engineered functional additives. The crystalline LEDs show superior charge transport, operational stability, and long-term stability. However, the crystalline phase reduces the overall performance compared to amorphous rubrene in terms of exciton dynamics and annihilation rates. The potential applications of rubrene and/or its derivatives crystalline films for improving the performance of organic and hybrid optoelectronic devices are discussed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meili Xu, Changbin Zhao, Zhimin Meng, Hao Yan, Hongming Chen, Zhixiang Jiang, Zhuonan Jiang, Hong Chen, Lingqiang Meng, Wei Hui, Zhenhuang Su, Yueyue Wang, Zhenhui Wang, Jianing Wang, Yuanhong Gao, Yaowu He, Hong Meng
Summary: In the field of AMOLED, the demand for higher integration density of driver chips has increased due to large-size and ultra-high-definition applications. Traditional technology of scaling down device dimension to improve integration density is facing challenges as Moore's Law approaches the limit. This article introduces a novel Fe-OLET device that integrates switching, light-emitting, and nonvolatile memory functions into a single device, achieving improved field-effect mobility and luminance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Bogdan R. Borodin, Fedor A. Benimetskiy, Valery Yu. Davydov, Ilya A. Eliseyev, Alexander N. Smirnov, Dmitry A. Pidgayko, Sergey I. Lepeshov, Andrey A. Bogdanov, Prokhor A. Alekseev
Summary: This article proposes a nano-fabrication method to create microcavities from indirect TMD multilayer flakes, which enables pronounced resonant photoluminescence enhancement due to cavity modes. High refractive index materials are used for efficient light trapping and the creation of high-Q resonators. Experimental results demonstrate the promising prospects of this approach in the field of nanophotonics.
NANOSCALE HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Nilgun Kayaci, Resul Ozdemir, Mustafa Kalay, N. Burak Kiremitler, Hakan Usta, M. Serdar Onses
Summary: The development of novel physically unclonable functions based on fluorescent organic semiconductors offers unique advantages for versatile and easily processable materials. The demonstrated OLE-PUFs show excellent surface features and optical properties, making them suitable for various substrates and environments. This study highlights the great potential of engineered f-OSCs in the development of new-generation PUFs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Liangliang Chen, Zhengsheng Qin, Han Huang, Jing Zhang, Zheng Yin, Xiaobo Yu, Xi-sha Zhang, Cheng Li, Guanxin Zhang, Miaofei Huang, Huanli Dong, Yuanping Yi, Lang Jiang, Hongbing Fu, Deqing Zhang
Summary: A new design strategy is reported for highly emissive ambipolar and n-type organic semiconductors by introducing perfluorophenyl groups into polycyclic aromatic hydrocarbons. The results show that 3,9-diperfluorophenyl perylene exhibits ambipolar semiconducting property and a photoluminescence quantum yield of 55%. Crystals of 5FDPP also display blue emission and the highest electron mobility among reported organic emissive n-type semiconductors. Furthermore, OLETs fabricated using 5FDPP crystals achieve high electroluminescence efficiency and current density.
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
Materials Science, Multidisciplinary
Arthur H. G. David, Daryna Shymon, Hayley Melville, Lou-Ann Accou, Adele Gapin, Magali Allain, Olivier Aleveque, Maximilien Force, Alexis Grosjean, Pietrick Hudhomme, Laura Le Bras, Antoine Goujon
Summary: The development of new n-type organic semiconductors is crucial to the development of organic electronics. In this study, the preparation of Bisazacoronenediimide (BACD) derivatives annulated by the insertion of oxygen in their ortho position is presented, and their performance in preliminary organic electronics studies is reported.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Arthur H. G. David, Daryna Shymon, Hayley Melville, Lou-Ann Accou, Adele Gapin, Magali Allain, Olivier Aleveque, Maximilien Force, Alexis Grosjean, Pietrick Hudhomme, Laura Le Bras, Antoine Goujon
Summary: The introduction of heteroatoms into polycyclic aromatic hydrocarbons or nanographenes can tune their properties for specific organic electronic devices. In this study, Bisazacoronenediimide derivatives annulated by the insertion of oxygen were prepared and their optoelectronic properties and performance in organic electronics were investigated.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Thermodynamics
Wanja Johansson, Jun Li, Leteng Lin
Summary: This study investigates the heat recovery of a wet scrubber using process data and computer simulations. The results indicate that heat recovery in wet scrubbers is a feasible way to make particle removal cost effective in medium-scale combustion facilities.
APPLIED THERMAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Sidney A. Howell, Manikandan Koodalingam, Junhyuk Jang, Chandana Sampath Kumara Ranasinghe, Mile Gao, Ronan Chu, Mohammad Babazadeh, David M. Huang, Paul L. Burn, Paul E. Shaw, Emma V. Puttock
Summary: The authors synthesized a family of first-generation dendrimers with 3,5-bis(carbazolyl)-phenyl dendrons attached to a green emissive fac-tris(2-phenylpyridyl)iridium(III) core. The dendrimers' solubility was increased by adding tert-butyl surface groups to the carbazole moieties. The density of the films containing doubly dendronized materials was higher than those containing mono-dendronized counterparts, with the highest density at 1.12 +/- 0.04 g cm-3 for the dendrimer with two rotationally constrained dendrons per ligand. The dendrimers also showed high photoluminescence quantum yields (PLQYs) in solution and were incorporated into solution-processed OLEDs with high external quantum efficiencies.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Geochemistry & Geophysics
Yan Xi, Jun Li, Wei Lian, Haifeng Fu, Yue Qi, Yudong Tian
Summary: Through experiments on oil shale samples obtained from Jimsar Sag in the Junggar Basin in China, it was found that increasing the thermal treatment temperature led to a continuous increase in porosity and permeability, but with different patterns. A nonlinear correlation was observed between porosity and movable fluid saturation, while permeability showed an approximately linear correlation with movable fluid saturation.
Article
Chemistry, Multidisciplinary
Runxi Wang, Saikat Datta, Jun Li, Saad F. K. Al-Afnan, Livio Gibelli, Matthew K. Borg
Summary: This study uses high-fidelity molecular dynamics simulations to investigate the adsorption of methane in organic rock samples. A kinetic sorption model is proposed based on diffusive transport inside a nanopore, and it accurately describes the adsorption kinetics. The findings provide valuable insights for simulating gas transport in mesopores and macropores of shale reservoirs.
Article
Mechanics
Duc-Vinh Le, Jun Li, Hongying Li, Lun-Sheng Pan, Ming Cheng, Xiaowu Zhang, Chang-Wei Kang, Jing Lou
Summary: In this study, the instability problem of the pseudopotential lattice Boltzmann method (LBM) at high density ratios was addressed by using average surrounding fluid properties as the virtual solid temperature. The simulation results of droplet evaporation and film boiling at high saturated temperatures showed good agreement with existing numerical and analytical solutions, respectively. The pseudopotential LBM model was also applied to simulate droplet evaporation and pool boiling at a low reduced temperature, demonstrating improved numerical stability.
Article
Engineering, Geological
Kerou Liu, Hui Zhang, Jun Li, Kuangsheng Zhang, Yangyong Ou, Yufei Chen, Xinrui Wang, Zhixiang Cai
Summary: By establishing a model, the study investigated the fracturing law of bottom-hole rock under electrohydraulic shockwave drilling (EHSD) technology. The results showed that EHSD breaks the bottom-hole rock mainly through compression and shear stress, but tensile stress failure also occurs near internal boundaries. The influence laws of electrical parameters, location parameters, and well depth on the stress wave peak value were further studied. This research can improve our understanding of how EHSD breaks bottom-hole rock during drilling and promote the application of this technology in auxiliary drilling.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Kinitra L. Hutchinson, Beta Z. Poliquit, Andrew J. Clulow, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Thin films of two poly(dendrimer)s were studied for the detection of trace quantities of nitrobased taggants and explosives. The addition of first-generation biphenyl-based dendrons to one of the polymers resulted in greater sensitivity and recovery to nitroaliphatic and nitroaromatic analytes compared with the other polymer. Neutron reflectometry was employed to characterize the vapor uptake of the polymers and a structurally similar dendrimer. The results demonstrated the importance of increasing the dendritic character in optimizing vapor uptake and improving sensing performance.
AUSTRALIAN JOURNAL OF CHEMISTRY
(2023)
Article
Thermodynamics
Jun Li, Duc-Vinh Le, Hongying Li, Lun-Sheng Pan, Ming Cheng, Xiaowu Zhang, Chang-Wei Kang, Jing Lou
Summary: The boiling phenomenon has been extensively studied using the pseudopotential lattice Boltzmann method based on an equation of state (EOS). It has been observed that a large superheat is required to simulate boiling or if a fixed heat flux is used. In this study, theoretical analyses of the heating process provide insights into the large superheat required to initiate phase transition in numerical simulations based on an EOS. The LBM simulation based on the Peng-Robinson EOS validates the theoretically predicted minimum superheat, and a solution to reduce the minimum superheat is provided and verified using a piecewise linear EOS in both theoretical analysis and LBM simulations.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Calvin J. Lee, Ashish Sharma, Naitik A. Panjwani, Isaac M. Etchells, Elham M. Gholizadeh, Jonathan M. White, Paul E. Shaw, Paul. L. Burn, Jan Behrends, Akshay Rao, David Jones
Summary: Singlet fission (SF) is a potential avenue for enhancing silicon photovoltaic performance. This study describes a molecular engineering approach to increase the energy of diketopyrrolopyrrole derivatives, enabling energy-level requirements for exothermic SF and energy transfer to silicon. The results reveal promising silicon-matched SF materials that could facilitate efficient solar harvesting and energy transfer to silicon photovoltaic cells.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Lachlan Packman, Neil Mallo, Aaron Raynor, Mile Gao, Mohammad Babazadeh, Hui Jin, David M. Huang, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: The strategy of using a bulk-heterojunction light-absorbing layer has led to the most efficient organic solar cells. The factors that affect the thin film dielectric constants are still not well understood. In this work, we report an organic semiconductor material that can be solution processed or vacuum evaporated to form good quality thin films and explore its effect on the dielectric constant and other optoelectronic properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
M. Chen, P. L. Burn, P. E. Shaw
Summary: Luminescence-based sensing enables sensitive and rapid detection of chemicals, and can be incorporated into portable detectors. While commercially available for explosive detection, there are fewer examples of luminescence-based detection of illicit drugs, requiring further research, particularly in thin film detection.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Abdulaziz S. R. Bati, Yu Lin Zhong, Paul L. Burn, Mohammad Khaja Nazeeruddin, Paul E. Shaw, Munkhbayar Batmunkh
Summary: Organic/inorganic metal halide perovskites have attracted significant attention as key materials for next-generation photovoltaic technologies due to their low cost, high performance, and solution processability. This review outlines notable achievements in photovoltaic-integrated technologies, including tandem solar cells, building-integrated photovoltaics, space applications, energy storage system integration with batteries and supercapacitors, and photovoltaic-driven catalysis. It also discusses the outstanding challenges and future perspectives for the development of these fields and potential next-generation applications.
COMMUNICATIONS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Neil Mallo, Shaun McAnally, Ronan Chu, Mohammad Babazadeh, Hui Jin, Paul L. Burn, Ian R. Gentle, Paul E. Shaw
Summary: Bulk heterojunction organic solar cells have made significant progress in power conversion efficiency and stability. Fluorination of non-polymeric donor-acceptor-acceptor-donor organic semiconductors can improve thin film density and electron transport while decreasing the optical frequency dielectric constant.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Abdulaziz S. R. Bati, Purevlkham Myagmarsereejid, Marco Fronzi, Kaicai Fan, Porun Liu, Yu Lin Zhong, Paul L. Burn, Ian R. Gentle, Paul E. Shaw, Munkhbayar Batmunkh
Summary: This article reports a simple solution-based method for the preparation of single-atom nickel-doped BP nanosheets and their application in perovskite solar cells, which leads to improved performance. Perovskite films prepared with the Ni-BP passivation layer have reduced defect densities and improved charge-transfer properties.
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)
