Article
Materials Science, Multidisciplinary
Chao Shi, Hong Huang, Qiuxia Li, Jingwen Yao, Cuicui Wu, Yibo Cao, Fangxiang Sun, Dongge Ma, Hong Yan, Chuluo Yang, Aihua Yuan
Summary: The study describes a novel strategy towards a series of charged ligand-based neutral iridium(III) complexes with adjustable color emission from blue-green to near-infrared. These complexes show excellent chemical and thermal stability, making them suitable for OLED devices with high external quantum efficiency, low efficiency roll-off, and turn-on voltage. This research provides new opportunities for optoelectronic applications of novel phosphorescent iridium(III) complex materials with tunable properties.
ADVANCED OPTICAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Mengxin Xu, Xinyi Li, Shihao Liu, Letian Zhang, Wenfa Xie
Summary: Near-infrared (NIR) light-emitting devices with emission wavelengths ranging from 700 nm to 2500 nm have gained significant interest for various applications. This review focuses on molecular design strategies for NIR materials, recent advancements in highly luminescent NIR materials, structural designs and underlying device physics of high-performing NIR organic light-emitting devices (OLEDs), practical applications in biomedicine and component determination, as well as current limitations and prospects for the development of NIR materials, devices, and applications.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jianxun Lu, Xiang Guan, Yuqing Li, Kebin Lin, Wenjing Feng, Yaping Zhao, Chuanzhong Yan, Mingliang Li, Yueyue Shen, Xiangqian Qin, Zhanhua Wei
Summary: This paper proposes managing charge injection and recombination behavior in CsSnI3-based Pero-LEDs by tuning the interface area of perovskite and charge-transporter. By utilizing a dendritic CsSnI3 structure, efficient lead-free NIR Pero-LEDs are achieved with a record external quantum efficiency of 5.4%. The dendritic structure also shows superiorities in flexible devices, maintaining almost no morphology change even after 2000 cycles of bends, and retaining 93.4% of initial EQEs after 50 cycles of bends.
ADVANCED MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Shuonan Chen, Hai Bi, Wenjing Tian, Yu Liu
Summary: Six new heteroleptic iridium complexes with deep-red and near-infrared emission were synthesized by combining different cyclometalating and ancillary ligands. The resulting complexes exhibited high electroluminescence efficiency when used as dopants in phosphorescent organic light-emitting diodes (PhOLEDs).
Article
Chemistry, Physical
Guangzhou Hu, Yang Wang, Shuang Zhang, Hui Ding, Ziyuan Zhou, Jishi Wei, Xuehua Li, Huanming Xiong
Summary: This study reported a method for the large-scale synthesis of solid-state silane-functionalized fluorescent carbon dots (CDs) with self-quenching resistant and tunable full-color fluorescence. By controlling the reaction of raw materials, the emission color and quantum yield of these CDs can be adjusted. These CDs were then used to prepare light-emitting diodes (LEDs) with adjustable correlated color temperature and high color rendering index.
Article
Chemistry, Physical
Junli Wang, Jingxia Zheng, Yongzhen Yang, Xuguang Liu, Jieshan Qiu, Yue Tian
Summary: In this study, self-quenching resistant solid-state fluorescent carbon dots (CDs) were successfully prepared via a one-step microwave method. The CDs exhibited tunable full-color solid-state emission and were utilized in the fabrication of white light emitting diodes (LEDs) with adjustable correlated color temperature and high color rendering index.
Article
Chemistry, Multidisciplinary
Zong-Liang Tseng, Lung-Chien Chen, Li-Wei Chao, Meng-Ju Tsai, Dian Luo, Nurul Ridho Al Amin, Shun-Wei Liu, Ken-Tsung Wong
Summary: In recent years, the performance and efficiency of perovskite quantum dots and QD-based light-emitting diodes have greatly improved, but the development of near-infrared QLEDs lags behind. In this study, new near-infrared-emissive perovskite quantum dots were developed through post-treatment, achieving high photoluminescence quantum yield and preparing high-quality films suitable for highly efficient near-infrared QLED applications.
ADVANCED MATERIALS
(2022)
Article
Optics
Kang Fu, Xumin Gao, QingXi Yin, JiaBin Yan, XiangYang Ji, Yongjin Wang
Summary: In this study, a wireless visible light communication system was established using multiple quantum well III-nitride diodes. The system enables simultaneous light emission and detection, and utilizes different wavelength diode chips for multi-channel optical communication. By applying coating principle to filter out unwanted light, the communication channel is purified and symbol demodulation is made easier.
Article
Materials Science, Multidisciplinary
Xiaomei Peng, Chia-Hsiu Yeh, Sheng Fu Wang, Jie Yan, Shifeng Gan, Shi-Jian Su, Xiuwen Zhou, Ye-Xin Zhang, Yun Chi
Summary: Near-infrared emitting Os(II) complexes with improved emission properties and increased radiative lifetime are successfully developed by introducing 4-(trifluoromethyl)phenyl on pyrazine. The influence of C-H(D) stretching vibrations on non-radiative transition processes is confirmed, leading to the fabrication of efficient NIR organic light-emitting diodes.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiang Wang, Lian Duan, Dongdong Zhang
Summary: Narrowband emitters based on the multiple resonance (MR) effect have shown great promise in high-definition displays. Recent studies have focused on indolocarbazole-based MR materials, which demonstrate excellent color tunability and impressive electroluminescence performances. This article summarizes the molecular design, synthesis, photophysical and electroluminescence properties of indolocarbazole-based MR materials, and discusses future research directions to unlock their full potential.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Youming Zhang, Hao-Che Kao, Chao Shi, Chengjun Wu, Minrong Zhu, Kai Li, Chung-Chih Wu, Chuluo Yang
Summary: A series of iridium(III) complexes based on [-2, -1, 0] charged ligands were designed and synthesized with excellent thermal stability and deep red/near infrared emission. By introducing electron-donating or -withdrawing groups, the photophysical properties of these complexes were improved, leading to organic light-emitting diodes with acceptable external quantum efficiency and low turn-on voltage. This work provides new opportunities and challenges for the optoelectronic applications of iridium(III) emitters with different valence states.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Hae Un Kim, Taehyun Kim, Chanhyuk Kim, Minjun Kim, Taiho Park
Summary: This review outlines molecular design strategies for developing highly efficient organic small-molecule near-infrared light-emitting materials and analyzes the molecular design, physical properties, and luminescence characteristics of representative high-efficiency molecules reported in the past 5 years. The perspective and outlook for the development of next-generation high-efficiency near-infrared organic light-emitting materials are also provided.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenxu Yin, Xiaoyu Zhang, Xuyong Yang, Andrey L. Rogach, Weitao Zheng
Summary: This article summarizes the recent progress in the development of near-infrared quantum dot LEDs, focusing on how their device structure and emitter properties facilitate improvement of device performance. The challenges and opportunities associated with these LEDs are also discussed.
Article
Chemistry, Applied
Fuhua Gao, Wasim Ullah Khan, Zhiyuan Cheng, Waheed Ullah Khan, Iqtidar Ahmad, Zhiqi Ye, Shenghong Yang, Yueli Zhang
Summary: Broadband NIR-emitting materials have critical applications in biology, medical detection, and NIR night-vision. This work presents a novel NIR phosphor CSO:Cr3+ and Yb3+ with promising optical properties, boosted emission intensity, and thermal stability, making it a potential candidate for NIR-LED and infrared night-vision applications.
Review
Chemistry, Applied
Mingliang Xie, Mizhen Sun, Shanfeng Xue, Wenjun Yang
Summary: This work summarizes six types of blue fluorescent emitters and explores the relationship between the FWHM value of their emission spectrum and the molecular structure and/or device structure.
Article
Materials Science, Multidisciplinary
Jiaxiang Liu, Baowen Wang, Zhiming Zhang, Jiamiao Yu, Xingqiang Lue, Guorui Fu, Wentao Li, Wai-Yeung Wong
Summary: Using the designed chiral emitter [Sm(tta)(3)(d-phen)], the first example of a chiral organo-lanthanide(III) complex-based CP-WOLED with both attractive white-light efficiencies (η(Max)(EQE) = 1.55% and η(Max)(CE) = 1.61 cd·A(-1)) and high dissymmetry factor (|g(EL)|(Max) = 0.011) is reported.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Integrative & Complementary Medicine
Viwan Jarerattanachat, Chompunuch Boonarkart, Supa Hannongbua, Prasert Auewarakul, Ruchuta Ardkhean
Summary: This study identified Isoquercitrin, a compound found in Ginseng and Notoginseng, as a potential inhibitor of Dengue NS5 protein. Isoquercitrin showed significant antiviral activity against Dengue virus by reducing viral RNA and protein synthesis with low cell toxicity.
JOURNAL OF TRADITIONAL AND COMPLEMENTARY MEDICINE
(2023)
Article
Chemistry, Medicinal
Bundit Kamsri, Bongkochawan Pakamwong, Paptawan Thongdee, Naruedon Phusi, Pharit Kamsri, Auradee Punkvang, Sombat Ketrat, Patchreenart Saparpakorn, Supa Hannongbua, Jidapa Sangswan, Khomson Suttisintong, Sanya Sureram, Prasat Kittakoop, Poonpilas Hongmanee, Pitak Santanirand, Jiraporn Leanpolchareanchai, Kirsty E. Goudar, James Spencer, Adrian J. Mulholland, Pornpan Pungpo
Summary: Mutations in DNA gyrase confer resistance to fluoroquinolones, second-line antibiotics for Mycobacterium tuberculosis infections. Identification of new agents that inhibit M. tuberculosis DNA gyrase ATPase activity is one strategy to overcome this. Compound R3-13, derived from bioisosteric designs, is a promising ATPase inhibitor against M. tuberculosis DNA gyrase. Additional screening using R3-13 as a template identified seven more ATPase inhibitors, with compound 1 showing the highest potency and noncytotoxicity to Caco-2 cells. Molecular dynamics simulations suggest that compound 1 binds to the ATP binding pocket in M. tuberculosis DNA gyrase GyrB subunit, making it a potential scaffold for further optimization.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2023)
Article
Chemistry, Inorganic & Nuclear
Yun Ma, Diankun Zhang, Wen Lv, Qiang Zhao, Wai-Yeung Wong
Summary: Fluorescence microscopy imaging is essential for visualizing morphological details in tissue with subcellular resolution. Heavy-metal complex based probes, especially iridium(III) solvato complexes, offer unique advantages for live cell imaging due to their excellent photophysical properties. In this study, seven water soluble cationic iridium(III) complexes were designed and synthesized for live cell imaging, with tunable emission colors from green to red. The use of these complexes enables multicolor phosphorescent imaging and various advanced imaging techniques like two-photon excited imaging and fluorescence lifetime imaging microscopy.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Optics
Minting Ouyang, Runda Guo, He Jiang, Lei Wang, Wai-Yeung Wong
Summary: Two new emitters based on anthracene core have been designed and synthesized for blue and deep blue OLEDs. The hot exciton and hybrid local and charge transfer properties of these molecules contribute to their high exciton utilization efficiencies. The CIE coordinate of CNPhAnPy approaches the NTSC standard index for pure blue emission.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Organic
Biquan Xiong, Lulu Si, Longzhi Zhu, Yu Liu, Weifeng Xu, Ke-Wen Tang, Shuang-Feng Yin, Peng-Cheng Qian, Wai-Yeung Wong
Summary: A copper-catalyzed aerobic oxidative/decarboxylative phosphorylation of aryl acrylic acids with P(III)-nucleophiles via the Michaelis-Arbuzov rearrangement is reported. The reaction can be carried out effectively without the use of a ligand and a base. Various aryl acrylic acids and P(III)-nucleophiles are compatible in this transformation, providing β-keto-organophosphorus compounds with good to excellent yields. The possible mechanism and kinetic studies show that this transformation may proceed through second-order chemical kinetics and involves a radical process.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Qiwei Wang, Lu Jiang, Wai-Yeung Wong
Summary: 2,1,3-Benzothiadiazole (BT) and its derivatives play a crucial role in the development of photofunctional compounds and organic optoelectronic devices. The construction of molecules with a BT core can enhance the electronic properties of organic materials. In this study, novel organometallic acetylide polymers bridged by bis(fluorenyl)-benzothiadiazole were synthesized and their photophysical, thermal, and electrochemical properties were investigated.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Supaphorn Seetaha, Nuntaporn Kamonsutthipaijit, Maho Yagi-Utsumi, Yanaka Seako, Takumi Yamaguchi, Supa Hannongbua, Koichi Kato, Kiattawee Choowongkomon
Summary: This study characterized the structure and monomer forms of HIV-1 RT using biophysical techniques, and found that the unliganded monomers have different conformations compared to the complexes. Small-angle X-ray scattering experiments confirmed the binding of p66(W401A) and p51(W401A) with inhibitors.
Article
Chemistry, Multidisciplinary
Kewalin Posansee, Monrudee Liangruksa, Teerasit Termsaithong, Patchreenart Saparpakorn, Supa Hannongbua, Teeraphan Laomettachit, Thana Sutthibutpong
Summary: A deep learning model supported by principal component analysis and structural methods was used to search for an alternative mTOR inhibitor from mushrooms. Through filtering and molecular docking calculations, a potential candidate with therapeutic value was identified.
Article
Chemistry, Multidisciplinary
Govardhana Babu Bodedla, Muhammad Imran, Jianzhang Zhao, Xunjin Zhu, Wai-Yeung Wong
Summary: In this study, TPE-ZnPF was successfully synthesized and characterized by single-crystal X-ray diffraction. TPE-ZnPF aggregates exhibit long-lived photoexcited states, and enhance emission intensity through suppression of non-radiative decay channels. Moreover, TPE-ZnPF aggregates show more efficient light-harvesting ability, well-defined nanosphere morphology, and more efficient photoinduced charge separation compared to Ph-ZnPF aggregates. As a result, TPE-ZnPF aggregates demonstrate an excellent photocatalytic hydrogen evolution rate of 56.20 mmol g(-1) h(-1), which is 94-fold higher than that of Ph-ZnPF aggregates without TPE groups.
Article
Chemistry, Organic
Wenli Shang, Longzhi Zhu, Zikang Li, Weifeng Xu, Biquan Xiong, Yu Liu, Ke-Wen Tang, Peng-Cheng Qian, Shuang-Feng Yin, Wai-Yeung Wong
Summary: A simple and efficient method for the ruthenium-catalyzed 1,6-hydroalkylation of para-quinone methides with ketones via in situ activation of C-(sp(3))-H bonds has been disclosed. This method demonstrates good substrate tolerance and moderate to good yields of the desired 1,6-hydroalkylation products.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes were synthesized and characterized, and they were used to fabricate red organic light emitting diodes. Exceptional device performance was achieved through device engineering optimization.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rashid Ilmi, Xiaofang Li, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Two new organo-europium complexes have been successfully synthesized and characterized. These complexes exhibit strong red emissions in the solid state with high photoluminescence quantum yields. They were used as dopants in the emitting layer of red organic light emitting diodes, resulting in exceptional overall performance through device engineering.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Physical
Shujie Liang, Hong Deng, Zhi Zhou, Wai-Yeung Wong
Summary: This article summarizes important synthesis strategies of Graphdiyne (GDY) and GDY-based materials, elaborates on modifications to regulate the structure and properties of GDY, and highlights recent achievements in energy and environmental applications in photocatalysis. Furthermore, the challenges and potential developments of GDY in catalytic research are discussed.
Review
Chemistry, Multidisciplinary
Leon Li-Min Zhang, Wai-Yeung Wong
Summary: This review summarizes the progress and potential applications of atomically precise CuNCs, highlighting their attractive properties and versatility in different fields.
