Article
Chemistry, Multidisciplinary
M. Hao, Q. Wang, J. Li, W. Xiang, H. Fan, X. Liang
Summary: An environmentally friendly Dy3+-CPB QDsG with high stability under extreme conditions has been synthesized, showing potential as a new luminescent material for the next generation of LCD. The PeQDsG@PI film has a high color gamut, allowing for more detailed object color display on LCD screens.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Chaomin Mao, Songman Ju, Jinping Zheng, Yueting Zheng, Zhongwei Xu, Lihua Lin, Hailong Hu, Kaiyu Yang, Tailiang Guo, Fushan Li
Summary: This study fabricates high-resolution perovskite quantum dot LEDs (PQLEDs) using nanoimprint technique, which can achieve massive pixel density displays with high color purity, efficiency, and wide color gamut.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Zijian Shi, Zhensong Wan, Ziyu Zhan, Kaige Liu, Qiang Liu, Xing Fu
Summary: Computer-generated holograms are crucial for various applications. However, orbital angular momentum (OAM) holography is limited by a fundamental sampling criterion. In this study, a comprehensive model on multiplexing crosstalk in OAM holography is established and a pseudo incoherent approach and a coherent solution by temporal multiplexing are proposed to eliminate crosstalk and enhance resolution and capacity. This method enables OAM-multiplexed holographic reconstruction with high quality, high resolution, and high capacity, offering a practical route towards high-performance holographic systems.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Physical
Zinan Chen, Haotao Li, Cuixia Yuan, Peili Gao, Qiang Su, Shuming Chen
Summary: Colloidal quantum-dot-based light-emitting diodes (LEDs) with narrow emission linewidth show great potential for high-precision color displays. However, the industrialization of QLED displays still faces challenges including unclear device mechanisms, low blue performance, and immature color patterning processes. This paper provides a comprehensive review of recent advancements in QLED displays and focuses on device mechanisms, blue QLEDs, and color patterning. Opportunities, challenges, solutions, and future research directions are also summarized.
Article
Optics
Bingle Huang, Enguo Chen, Lei Sun, Tailiang Guo
Summary: This paper presents an effective approach for preparing quantum-dot color conversion films in white-balance display backlights. The theoretical adjustment method and experimental verification successfully achieved the target white balance.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Cagatay Isil, Deniz Mengu, Yifan Zhao, Anika Tabassum, Jingxi Li, Yi Luo, Mona Jarrahi, Aydogan Ozcan
Summary: In this study, a deep learning-enabled diffractive display is proposed for synthesizing/projecting super-resolved images using low-resolution wavefront modulators. By using an electronic encoder and a diffractive decoder, the system achieves a significant increase in the space-bandwidth product, allowing for high-resolution image projection.
Article
Nanoscience & Nanotechnology
Ying Chen, Zhen Yu Zhang, Guo Ping Wang
Summary: This study achieved natural light anticounterfeiting and passive displays by incorporating colloidal PQDs into a PMMA matrix. The presence of PMMA long chains prevented deformations and aggregations of PQDs and enhanced their resistance to water, heat, and photoirradiation stimuli. The research findings open up new possibilities for expanding the range of display applications for PQDs.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Analytical
Kai-Ling Liang, Wei-Hung Kuo, Chien-Chung Lin, Yen-Hsiang Fang
Summary: Colloidal CdSe/ZnS quantum dots (QD) enhanced micro-LEDs with sizes ranging from 10 to 100 μm were fabricated and characterized. The color conversion layer in the form of quantum-dot-contained photoresists was directly placed on top of an InGaN-based micro-LED using photolithography, demonstrating high throughput and precision. The QD-enhanced micro-LEDs exhibited higher brightness compared to AlGaInP counterparts under the same current level. Furthermore, these devices showed low redshift of emission wavelength and demonstrated efficient color stability and angular color match, making them promising for future micro-display technology.
Article
Multidisciplinary Sciences
John You En Chan, Qifeng Ruan, Menghua Jiang, Hongtao Wang, Hao Wang, Wang Zhang, Cheng-Wei Qiu, Joel K. W. Yang
Summary: Light field prints displaying 3D information often appear pixelated due to limited resolution and misalignment between lenses and color pixels. Here, the authors present a one-step process via two-photon polymerization lithography to fabricate light field prints with high spatial and angular resolution.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Mengda He, Qinggang Zhang, Francesco Carulli, Andrea Erroi, Weiyu Wei, Long Kong, Changwei Yuan, Qun Wan, Mingming Liu, Xinrong Liao, Wenji Zhan, Lei Han, Xiaojun Guo, Sergio Brovelli, Liang Li
Summary: We have developed down-conversion ??-LED phosphors by growing CsPbBr3 perovskite nanocrystals directly inside sealed mesoporous silica nanospheres. The calcination process, in the presence of K2CO3, allows for the production of CsPbBr3 nanocrystals with high emission efficiency and isolation from the external environment. The resulting CsPbBr3-SiO2 nanospheres are highly stable, emissive, and dispersible, making them suitable for photolithographic inks for uniform ??-LED color conversion patterns with small pixels.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Qi Pan, Jie Fu, Sijin Liu, Jungui Zhou, Bo Ma, Shuhua Chen, Yinghua Qiu, Yi Lin, Yiqi Hu, Di Yang, Jinxing Chen, Man-Keung Fung, Yunjun Wang, Qiao Zhang, Lu Wang, Muhan Cao
Summary: Encapsulated CsPbX3@cyanuric acid super-particles are generated to overcome the limitations of all-inorganic perovskite nano-crystals in displays, including low-yield colloidal synthesis, poor stability, and unsatisfactory green emission wavelength. These super-particles exhibit excellent optical properties and can achieve a wide color gamut.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Reprint
Optics
Yalian Weng, Guixiong Chen, Xiongtu Zhou, Yongai Zhang, Qun Yan, Tailiang Guo
Summary: The fabrication and performance of patterned quantum dot color conversion films using direct photolithography is crucial for μ LED full-color displays. By optimizing the photolithography process, uniform patterned quantum-dot photoresist (QDPR) films with controllable thickness and size were achieved. The maximum color conversion efficiency (CCE) of the patterned QDPR films reached 67.46%, with a thickness of only 4.28 μm. Moreover, the use of distributed Bragg reflector (DBR) and black matrix (BM) helped regulate the outgoing light and reduce optical crosstalk. A color conversion device combining a blue μ LED and the QDPR films incorporated with DBR and BM showed a color gamut of 120.53% NTSC, demonstrating its potential for next-generation high-resolution full-color displays.
JOURNAL OF LUMINESCENCE
(2023)
Article
Nanoscience & Nanotechnology
Liangliang Zhou, Bin Yu, Lilin Huang, Huiqun Cao, Danying Lin, Yingying Jing, Faiz Wali, Junle Qu
Summary: In this study, a nonblinking core-multishell InP/ZnSe/ZnS quantum dot was synthesized using a hydrofluoric acid etching passivation method. The nonblinking quantum dot exhibited high fluorescence efficiency, good photostability, and high targeting. These nonblinking quantum dots can be used for long-term super-resolution visualization of subcellular dynamics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Optics
Tingtao Meng, Yueting Zheng, Denglin Zhao, Hailong Hu, Yangbin Zhu, Zhongwei Xu, Songman Ju, Jipeng Jing, Xiang Chen, Hongjin Gao, Kaiyu Yang, Tailiang Guo, Fushan Li, Junpeng Fan, Lei Qian
Summary: The demonstration of high-resolution quantum-dot light-emitting diodes using transfer printing and Langmuir-Blodgett film technology has been achieved. A honeycomb-patterned layer of wide-bandgap quantum dots is embedded to reduce leakage current, and both red and green QLEDs are demonstrated. The red devices exhibit high brightness and peak external quantum efficiency.
Article
Computer Science, Information Systems
Ching-Ho Tien, Ni-Pin Yeh, Kuan-Lin Lee, Lung-Chien Chen
Summary: In this study, a display consisting of a 64-cell quantum dot light-emitting diodes (QDLEDs) array was presented, with high operating rate and maximum brightness achieved. The surface modification of perovskite nanocrystal composite using aloe-vera gel as the organic precursor enabled high-quality narrow band photoluminescence emission. The use of an Arduino microcontroller unit for dynamic micro-control terminal and motor drive modules for the display driver circuit demonstrates the potential of perovskite devices for next-generation displays.
Article
Materials Science, Multidisciplinary
A. M. Al-Syadi, M. Faisal, Ahmed Mohamed El-Toni, Aslam Khan, Mohammed Jalalah, S. A. Alsareii, Farid A. Harraz
Summary: This study demonstrates the sensitive detection of horseradish peroxidase (HRP) enzyme using a gold nanoparticle/porous silicon (AuNPs/PSi) active substrate via surface-enhanced Raman scattering (SERS). The active substrate exhibits high sensitivity and reproducible SERS response, making it promising for biophysical, biochemical, and biomedical applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Akshay S. Limaye, Mabkhoot Alsaiari, Pratik Shinde, Arnab Ghosh, Mohammed Jalalah, Chandra Sekhar Rout, Siddappa A. Patil, Farid A. Harraz, Ramesh B. Dateer
Summary: An efficient heterogeneous catalyst with 51.63% palladium (Pd) content was synthesized using mango leaf extract. The catalyst showed remarkable catalytic activity in organic synthesis and electrocatalysis, and exhibited promising recyclability.
Article
Materials Science, Ceramics
Jahir Ahmed, M. Faisal, S. A. Alsareii, Mohammed Jalalah, Mabkhoot Alsaiari, Farid A. Harraz
Summary: In this study, a novel Acetaminophen (AcP) sensor utilizing a Mn2O3-embedded mesoporous silicon nanocomposite fabricated glassy carbon electrode was developed. The sensor showed excellent sensitivity, a wide linear dynamic range, and a very low detection limit. It was also successful in detecting AcP concentration in commercial tablets and checking potential chemical interference. Therefore, this Mn2O3@PSi/GCE sensor assembly is expected to be an effective route in developing an efficient AcP sensor.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Pranav Kulkarni, Hemanth Kumar Beere, Mohammed Jalalah, Mabkhoot Alsaiari, R. Geetha Balakrishna, Farid A. Harraz, Debasis Ghosh
Summary: In this article, a high-performance aqueous zinc ion battery with structurally engineered V3O7•H2O cathode and surface modified metallic zinc anode is demonstrated. The capacity, rate performance, and stability of the V3O7•H2O cathode are significantly improved through Zn2+ pre-intercalation. The zinc anode is surface engineered with a carbon coating to reduce plating stripping overpotential and dendrite growth.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Mohammed Jalalah, Ananta Sasmal, Arpan Kumar Nayak, Farid A. Harraz
Summary: In this study, a Bi2WO6 nanocomposite was successfully synthesized through a single-step redox reaction under hydrothermal conditions without the use of any external acidic medium. The synthesized material exhibited the highest specific capacitance in a neutral electrolyte. The fabricated symmetric supercapacitor device using the synthesized Bi2WO6 nanocomposite showed a high energy density, power density, and excellent durability.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Materials Science, Characterization & Testing
Mohammed Jalalah, Sumra Zulfiqar, Ayesha Afzal, Zubair Khaliq, Muhammad B. Qadir, Ayesha Abid, M. Faisal, Mabkhoot Alsaiari, Muhammad Irfan, Farid A. Harraz
Summary: Natural fiber reinforced composites (NFCs) show promise as a replacement for wood materials in furniture and households, but their flammability is a limitation. This study investigates the use of eco-friendly and cost-effective fire-retardants to improve the fire resistance of NFCs. The addition of micro-integrated Triphenyl Phosphate (m-TPP) and Aluminum Trihydroxide (ATH) to epoxy resins (EPs) enhances the fire resistance, but reduces mechanical strength.
POLYMERS & POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Mohammed Jalalah, Zubair Nabi, Muhammad Naveed Anjum, Mirza Nadeem Ahmad, Atta Ul Haq, Muhammad Bilal Qadir, Mohd Faisal, Mabkhoot Alsaiari, Muhammad Irfan, Farid A. Harraz
Summary: The growing industry and its effluents, such as toxic dyes and volatile organic compounds, pose a serious environmental concern due to their non-biodegradable nature and high chemical stability. Recently, using photo-catalysts to degrade toxic dyes and drugs has become an important and successful approach. This study presents the synthesis of a poly(o-anisidine)-based composite with graphitic carbon nitride and zinc oxide (POA/g-C3N4/ZnO) and its utilization as a photo-catalyst.
Article
Biochemistry & Molecular Biology
Rizwan Tahir, Hasan B. Albargi, Adnan Ahmad, Muhammad Bilal Qadir, Zubair Khaliq, Ahsan Nazir, Tanzeela Khalid, Misbah Batool, Salman Noshear Arshad, Mohammed Jalalah, Saeed A. Alsareii, Farid A. Harraz
Summary: Nanofiber-based facial masks with Azadirachta indica extract (AI) incorporated polyvinyl alcohol (PVA) nanofiber membranes were prepared and characterized. The optimized nanofiber had a diameter of 376 +/- 75 nm and the AI nanoparticles in the extract ranged from 50 to 250 nm. The nanofiber membrane exhibited good hydrophilicity, water absorption, fast drug release, antibacterial and antioxidant activities, as well as mechanical properties and breathability.
Article
Chemistry, Analytical
Mohammed Jalalah, HyukSu Han, Milan Mahadani, Arpan Kumar Nayak, Farid A. Harraz
Summary: The creation of energy harvesting/storage systems from biomass/waste materials offers a green and sustainable option for biomass reuse, with significant scientific and technological implications. Microstructure management is crucial for carbon-based materials to achieve the required applications in the fields of supercapacitor and conversion. In this study, a facile production method of heteroatom-doped porous carbon (HAPC) from Enhydra fluctuans leaves as electrode material for supercapacitor was demonstrated, resulting in large specific-surface area and good pore-size distribution. The solid-state symmetric supercapacitor device (SSSD) showed exceptional durability, maintaining 94% of its specific capacitance after 10,000 charge/discharge cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
Mohammed Jalalah, HyukSu Han, Arpan Kumar Nayak, Farid A. Harraz
Summary: In this study, nitrogen-doped graphitized carbon-based materials with a huge specific surface area were synthesized and proved to be promising metal-free catalysts for the oxygen reduction reaction. They exhibited good activity and stability, surpassing conventional platinum-based catalysts in alkaline medium.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Polymer Science
Ali Afzal, Mohammed Jalalah, Abid Noor, Zubair Khaliq, Muhammad Bilal Qadir, Rashid Masood, Ahsan Nazir, Sheraz Ahmad, Faheem Ahmad, Muhammad Irfan, Munazza Afzal, Mohd Faisal, Saeed A. Alsareii, Farid A. Harraz
Summary: Nowadays, synthetic polymers with special properties such as biodegradability, biocompatibility, hydrophilicity, and non-toxicity are widely used in medical applications. This study aims to develop and characterize PVA/PCL fibers containing a model drug for controlled drug release in wound dressing. The wet spinning technique was used to produce PVA/PCL fibers from a dope solution, and the fibers were tested for various properties related to wound healing. The results showed that the developed PVA/PCL fibers have respectable tensile properties, adequate liquid absorption, swelling behavior, degradation, and antimicrobial activity, as well as a controlled drug release profile.
Article
Green & Sustainable Science & Technology
Mohamed Abboud, Reem S. S. Alnefaie, Asla A. A. AL-Zahrani, Nabil Al-Zaqri, Mohammad Abu Haija, Azza Al-Ghamdi, Mabkhoot Alsaiari, Mohammed Jalalah, Omeer Albormani, Mohamed S. S. Hamdy
Summary: A simple and efficient method was reported to prepare highly efficient and reusable NiO@SBA-15 nanocatalysts for cyclohexane oxidation. The nanocatalysts showed high dispersion of NiO NPs in SBA-15 and exhibited the highest catalytic activity with meta-Chloroperoxybenzoic acid as the oxidant. Compared to other catalysts, NiO@SBA-15 achieved a conversion rate of 75-99% for cyclohexane. The catalytic activity was maintained during five successive cycles.
Article
Chemistry, Multidisciplinary
Misbah Batool, Hasan B. Albargi, Adnan Ahmad, Zahid Sarwar, Zubair Khaliq, Muhammad Bilal Qadir, Salman Noshear Arshad, Rizwan Tahir, Sultan Ali, Mohammed Jalalah, Muhammad Irfan, Farid A. Harraz
Summary: A novel bubbled-structured silica nanoparticle (SiO2) decorated electrospun polyurethane (PU) nanofibrous membrane (SiO2@PU-NFs) was prepared. The membrane exhibited a nanoscale hierarchical surface roughness and superhydrophobicity, along with excellent mechanical properties and breathability. It also showed high water/oil separation efficiency and maintained its superhydrophobic quality under severe conditions. This composite structure could be used in various functional applications.
Article
Nanoscience & Nanotechnology
Adnan Ahmad, Hasan Albargi, Mumtaz Ali, Misbah Batool, Ahsan Nazir, Muhammad Bilal Qadir, Zubair Khaliq, Salman Noshear Arshad, Mohammed Jalalah, Farid A. Harraz
Summary: By incorporating nanoparticles, superhydrophobic surfaces can be achieved with potential applications. In this study, a superhydrophobic nanofibrous membrane was developed through electrospinning and post-heat treatment, resulting in a hierarchically nanorough surface. The membrane exhibited excellent superhydrophobicity, robustness, and self-healing properties.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Engineering, Environmental
Md. A. Rashed, M. Faisal, S. A. Alsareii, Mabkhoot Alsaiari, Mohammed Jalalah, Farid A. Harraz
Summary: In this study, an electrochemical sensor based on a nanocomposite is reported for the sensitive and selective detection of the pesticide Imidacloprid. The sensor, constructed using Ag nanoparticles deposited on mesoporous carbon and naturally extracted hematite ore, exhibits excellent sensing performance with a wide linear detection range, high sensitivity, and low detection limit. The sensor electrode based on the Ag@Meso-C/Hematite Ore nanocomposite also demonstrates unique selectivity behavior and good reproducibility, repeatability, and storage stability. This sensing system, based on naturally occurring hematite ore, provides a sensitive approach for the detection of various target analytes in chemical sensing studies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
