Article
Physics, Applied
Yasuo Minami, Hiromutsu Abe, Xiangmeng Lu, Naoto Kumagai, Takahiro Kitada
Summary: In this study, a photoconductive antenna (PCA) with Er-doped InAs quantum dot (QD) layers was fabricated and used for THz wave generation with 1.5 μm pump. The results demonstrated the high capability of the PCA for THz wave generation and detection.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Parisa Sharif, Eda Alemdar, Soner Ozturk, Omer Caylan, Tugba Haciefendioglu, Goknur Buke, Murat Aydemir, Andrew Danos, Andrew P. Monkman, Erol Yildirim, Gorkem Gunbas, Ali Cirpan, Ahmet Oral
Summary: Observation of thermally activated delayed fluorescence (TADF) has revolutionized the molecular design of highly efficient OLEDs. The effectiveness of TADF is largely determined by the first-order mixing coefficient (lambda) and the difference between singlet and triplet excited state energies (Delta E-ST). While Delta E-ST has been the main focus, the influence of spin-orbit coupling (H-SO) has been overlooked. In this study, TADF materials with increased H-SO are achieved by substituting heteroatoms with heavy-atom selenium, resulting in remarkable EQEs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Milan Stanojevic, Jovana Gojanovic, Sandra Zivanovic
Summary: Experimental light and dark current density-voltage (J-V) curves of bulkheterojunction (BHJ) P3HT:PCBM and bilayer (BL) P3HT/PCBM based organic solar cells (OSCs) were fitted with the ideal single diode model to estimate the values of the ideality factor n and the order of reverse saturation current J(0). The results showed similar parameter values for both BHJ and BL OSCs under illumination, and different parameter values for dark J-V curves. The difference in parameter values was explained by limited transport in the OSCs' active layer and the contribution of photogenerated carriers to recombination current.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Seong Ji Lee, Chan-mo Kang, Jin-Wook Shin, Dae Hyun Ahn, Chul Woong Joo, Hyunsu Cho, Nam Sung Cho, Hyoc Min Youn, Young Jae An, Jin Sun Kim, Jonghee Lee, Hyunkoo Lee
Summary: In this study, a high-luminance, low-voltage, three-wavelength top-emitting white OLED was developed for full-color microdisplay applications. Red, green, and blue color filters were deposited onto the OLED to enhance color gamut. The developed device exhibited high luminance and color gamut, demonstrating promising potential for OLED microdisplay technology.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Sujith Sudheendran Swayamprabha, Deepak Kumar Dubey, Shahnawaz, Rohit Ashok Kumar Yadav, Mangey Ram Nagar, Aayushi Sharma, Fu-Ching Tung, Jwo-Huei Jou
Summary: OLEDs have shown great potential in the lighting and display industry, with significant improvements in efficiency and lifetime over the past three decades. However, operational lifetime remains a challenge for commercial applications. This review provides a detailed overview of factors affecting OLED lifetime and outlines various degradation phenomena and failure mechanisms, along with proposed solutions to enhance device stability and lifespan.
Article
Engineering, Electrical & Electronic
A. Khalf, J. Gojanovic, J. Melancon, A. Sharma, S. Zivanovic
Summary: The effect of different thicknesses of the P3HT:PCBM layer on the photocurrent spectra (PCS) of ITO/PEDOT:PSS/P3HT:PCBM/Al organic photovoltaic devices (OPVs) was studied. It was found that for thinner devices, the PCS showed a good correlation with the P3HT:PCBM absorption spectrum, while a pronounced red shift was observed for thicker OPVs. The drift-diffusion model (DDM) simulations showed that reducing the surface recombination velocity (SRV) of majority carriers at the electrode affected the normalized PCS, while surface recombination had no influence on the normalized PCS for balanced hole and electron transport.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Petr A. Obraztsov, Vladislava V. Bulgakova, Pavel A. Chizhov, Alexander A. Ushakov, Dmitry S. Gets, Sergey Makarov, Vladimir V. Bukin
Summary: Hybrid organic-inorganic perovskites have shown potential in the development of scalable photoconductive terahertz emitters, with their optoelectronic properties chemically engineerable for desired applications. This study explores the characteristics of polycrystalline perovskite films for THz emission and provides insights into carrier lifetime and mobility using alternative noninvasive methods, showing their competitiveness with traditional semiconductors in THz emission.
Review
Chemistry, Physical
Huanrong Liang, Yuhang Ma, Huaxin Yi, Jiandong Yao
Summary: 2D layered materials have great potential in optoelectronic sensing, but they face challenges such as weak light absorption, limited carrier lifetime, and pronounced interfacial effects. This review summarizes the latest research progress and proposes methods to improve performance and address challenges.
Article
Optics
Vitali V. Kononenko, Maxim S. Komlenok, Pavel A. Chizhov, Vladimir V. Bukin, Vladislava V. Bulgakova, Andrey A. Khomich, Andrey P. Bolshakov, Vitaly I. Konov, Sergey V. Garnov
Summary: The efficiency of terahertz radiation generation from nitrogen-doped diamonds was studied in relation to optical excitation intensity. The nitrogen concentration in the diamonds was measured and a correlation was observed between the doping level and the performance of diamond-based antennas, demonstrating the potential of doped diamond as a highly efficient material for photoconductive antennas.
Article
Materials Science, Multidisciplinary
Ilaria Fratelli, Laura Basirico, Andrea Ciavatti, Zachary A. Lamport, John E. Anthony, Ioannis Kymissis, Beatrice Fraboni
Summary: Organic semiconductors are promising materials for X-ray detectors due to their mechanical flexibility and large coverage. The detection efficiency can be enhanced by considering the photoconductive gain effect. This study demonstrates a flexible arrayed thin-film X-ray detector with record X-ray sensitivities using controlled solution deposition and crystallization processes.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Cheng Yang, Guangcan Wang, Maomao Liu, Fei Yao, Huamin Li
Summary: 2D materials have potential in future photodetectors due to their unique properties, but combining them with other materials can enhance performance. Recent research focuses on strategies to increase photocurrent for improved detection capabilities.
Article
Chemistry, Applied
Baeksang Sung, Seonjeong Lee, Chul Woong Joo, Dasol Kim, Jonghee Lee, Yun-Hi Kim
Summary: A novel thermally stable host material, Si-IDCz, has been reported for blue phosphorescent organic light-emitting diodes. Si-IDCz exhibits a high glass transition temperature and a rigid silicon core, which contribute to its high performance and stability.
Article
Chemistry, Multidisciplinary
Alex Strasser, Hua Wang, Xiaofeng Qian
Summary: This study demonstrates that Janus two-dimensional (2D) materials with low symmetry exhibit strong nonlinear optical responses, including circular photocurrent and large out-of-plane second harmonic generation. The enhancement of out-of-plane second harmonic generation in Janus heterostructures compared to monolayer materials is attributed to interlayer coupling and interference effects. This discovery provides a unique opportunity for exploring nonlinear optical phenomena and designing configurable layered nonlinear optical materials.
Article
Chemistry, Multidisciplinary
Xabier Rodriguez-Martinez, Enrique Pascual-San-Jose, Zhuping Fei, Martin Heeney, Roger Guimera, Mariano Campoy-Quiles
Summary: By training artificial intelligence algorithms with self-consistent datasets, this study found that Bayesian machine scientist and random decision forest methods can effectively predict the photocurrent-composition phase space in organic photovoltaic material systems. The research identified highly predictive models using only material band gaps, simplifying the rationale of the photocurrent-composition space in this field.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Hyein Ha, Young Jae Shim, Da Hwan Lee, Eun Young Park, In-Ho Lee, Seok-Keun Yoon, Min Chul Suh
Summary: A new small-molecular thermally cross-linkable material PbV was synthesized for hole transport layers in wet processed OLEDs, showing high glass temperatures and a triplet energy. By blending PbV with polymeric HTM, a semi-interpenetrating network was formed, leading to significantly improved efficiency and lifetime of the OLED device.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Malika Ouhadou, Aumeur El Amrani, Choukri Messaoudi, Said Ziani
Article
Thermodynamics
Abdellatif Bouaichi, Aumeur El Amrani, Malika Ouhadou, Aberrazak Lfakir, Choukri Messaoudi
Article
Optics
M. Erray, M. Hanine, A. El Amrani
Article
Physics, Multidisciplinary
Abdeljabbar Es-saghiri, Abdenabi Brahmi, Aumeur El Amrani
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
(2020)
Article
Materials Science, Multidisciplinary
A. Abbassi, Fatimazahra Nainaa, Mestapha Arejdal, Mihaela Toma, Aumeur El Amrani, Hamid Ez-Zahraouy, Felicia Iacomi
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2020)
Article
Engineering, Electrical & Electronic
Fatima Ez-zahra Lamzouri, El-Mahjoub Boufounas, Aumeur El Amrani
Summary: This paper introduces a novel strategy for energy management and intelligent power control of a stand-alone electric generation system using a neural network-based integral sliding mode controller. The proposed approach aims to improve system performance and stability under high perturbations and external disturbances.
INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS
(2021)
Article
Thermodynamics
Mohammed Halimi, Aumeur El Amrani, Choukri Messaoudi
Summary: An experimental investigation of non-uniform circumferential temperature distribution (CTD) of a PTC absorber was conducted, with a focus on the effects of focal length, absorber diameter, and outer glass cover (OGC). The most uniform and profitable flux distribution was found for a diameter of 0.042 m and a focal distance of 0.19 m. Additionally, the highest CTD uniformity was reported for a distance of 0.19 m, with an increase in uniformity observed for the use of OGC.
Article
Green & Sustainable Science & Technology
Abdellatif Bouaichi, Ahmed Alami Merrouni, Aumeur El Amrani, Bengt Jaeckel, Charaf Hajjaj, Zakaria Naimi, Choukri Messaoudi
Summary: The study examined the presence of PID in an operational PV plant in a desert climate and its impact on affected modules. The results demonstrate that PID significantly affects the durability and power output of crystalline silicon modules.
Article
Energy & Fuels
Fatima Ez-zahra Lamzouri, El-Mahjoub Boufounas, Aumeur El Amrani
Summary: This paper presents a novel efficient output power control strategy for an electric generation hybrid system (EGHS), which aims to regulate the hybrid system output power and extend the battery life cycle. By developing an energy management strategy and control law, the proposed strategy demonstrates more robustness and fast response against environmental condition changes compared to the standard sliding mode control (SMC) for power regulation and maximum power conversion.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Automation & Control Systems
Fatima Ez-zahra Lamzouri, El-mahjoub Boufounas, Aumeur El Amrani
INTERNATIONAL JOURNAL OF MODELLING IDENTIFICATION AND CONTROL
(2020)
Proceedings Paper
Computer Science, Artificial Intelligence
F-E Lamzouri, E-M Boufounas, A. Brahmi, A. El Amrani
11TH INTERNATIONAL CONFERENCE ON AMBIENT SYSTEMS, NETWORKS AND TECHNOLOGIES (ANT) / THE 3RD INTERNATIONAL CONFERENCE ON EMERGING DATA AND INDUSTRY 4.0 (EDI40) / AFFILIATED WORKSHOPS
(2020)
Article
Automation & Control Systems
Fatima Ez-zahra Lamzouri, El-Mahjoub Boufounas, Aumeur El Amrani
MECHATRONIC SYSTEMS AND CONTROL
(2019)
Proceedings Paper
Green & Sustainable Science & Technology
Abdellatif Bouaichi, Ahmed Alami Merrouni, Charaf Hajjaj, Houssain Zitouni, Abdellatif Ghennioui, Aumeur El Amrani, Choukri Messaoudi
TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY (TMREES)
(2019)
Proceedings Paper
Energy & Fuels
Mohammed Halimi, Imane Outana, Aumeur El Amrani, Jaouad Diouri, Choukri Messaoudi
PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON ELECTRONIC ENGINEERING AND RENEWABLE ENERGY, ICEERE 2018
(2019)
Proceedings Paper
Energy & Fuels
Abdellatif Bouaichi, Ahmed Alami Merrouni, Charaf Hajjaj, Choukri Messaoudi, Badr Ikken, Aumeur El Amrani, Houssain Zitouni, Abdellatif Ghennioui
PROCEEDINGS OF THE 1ST INTERNATIONAL CONFERENCE ON ELECTRONIC ENGINEERING AND RENEWABLE ENERGY, ICEERE 2018
(2019)
