Results 41 to 50 of about 68,513 (291)

Blue Upconversion Organic Light‐Emitting Diodes Achieving 1000 cd m−2 With an Operating Voltage of 2.7 V by Suppressing Interfacial Exciton Quenching

Advanced Functional Materials, EarlyView.
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui, Hiroto Iwasaki, Kosuke Anraku, Ken Albrecht, Yutaka Majima, Seiichiro Izawa   +5 more
wiley   +1 more source

Photocatalytic toluene oxidation with nickel-mediated cascaded active units over Ni/Bi2WO6 monolayers

Nature Communications
Adsorption and activation of C–H bonds by photocatalysts are crucial for the efficient conversion of C–H bonds to produce high-value chemicals. Nevertheless, the delivery of surface-active oxygen species for C–H bond oxygenation inevitably needs to ...
Yingzhang Shi, Peng Li, Huiling Chen, Zhiwen Wang, Yujie Song, Yu Tang, Sen Lin, Zhiyang Yu, Ling Wu, Jimmy C. Yu, Xianzhi Fu   +10 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Heterostructure-Engineered Semiconductor Quantum Dots toward Photocatalyzed-Redox Cooperative Coupling Reaction

Research, 2023
Semiconductor quantum dots have been emerging as one of the most ideal materials for artificial photosynthesis. Here, we report the assembled ZnS-CdS hybrid heterostructure for efficient coupling cooperative redox catalysis toward the oxidation of 1 ...
Lin-Xing Zhang, Ming-Yu Qi, Zi-Rong Tang, Yi-Jun Xu   +3 more
doaj   +1 more source

Titania Photocatalysis beyond Recombination: A Critical Review

, 2013
This short review paper shows the significance of recombination of a photoexcited electron and a hole in conduction and valence bands, respectively, of a titania photocatalyst, since recombination has not yet been fully understood and has not been ...
Bunsho Ohtani
core   +1 more source

Visible Light Induced Nano-Photocatalysis Trimetallic Cu0.5Zn0.5-Fe: Synthesis, Characterization and Application as Alcohols Oxidation Catalyst

, 2022
Here, we report a visible light-induced-trimetallic catalyst (Cu0.5Zn0.5Fe2O4) prepared through green synthesis using Tilia plant extract. These nanomaterials were characterized for structural and morphological studies using powder x-ray diffraction (P ...
Lina Yousef, Afnan Al-Hunaiti, Asma Ghazzy   +2 more
core   +1 more source

Conjugated Porphyrin Polymer With Superior Charge Transfer for Photodynamic‐Immunomodulatory Prevention of CIED Infection in Diabetes

Advanced Healthcare Materials, EarlyView.
Under NIR irradiation, PTCPP generates ROS to eliminate MRSA biofilms and promote M1 macrophage polarization for phagocytosis. After bacterial clearance, the material is phagocytosed by macrophages, shifting their polarization to M2 phenotype via metabolic reprogramming, which synergistically enhances anti‐infection therapy and wound healing.
Honghao Ma, Jinguo Xu, Rongrong Gu, Chuanhui Dong, Te Chen, Yi Mu, Jing Zhu, Yating Wang, Wen Wang, Yingying Zhang, Hongyu Ma, Xiaochen Wang, Sheng Ye, Cheng Cheng   +13 more
wiley   +1 more source

Highly Active Rutile TiO2 for Photocatalysis under Violet Light Irradiation at 405 nm

, 2022
Anatase TiO2 is a widely investigated photocatalyst; however, it can only work under ultraviolet (UV) light with wavelengths less than 390 nm (band gap 3.2 eV).
Akira Yamamoto, Jun Kumagai, Fumiaki Amano   +2 more
core   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source

Construction of Inverse–Opal ZnIn₂S₄ with Well–Defined 3D Porous Structure for Enhancing Photocatalytic H₂ Production

Nanomaterials
The conversion of solar energy into hydrogen using photocatalysts is a pivotal solution to the ongoing energy and environmental challenges. In this study, inverse opal (IO) ZnIn2S4 (ZIS) with varying pore sizes is synthesized for the first time via a ...
Yiyi Xie, Zhaohui Wu, Sifan Qi, Jiajun Luo, Shuang Pi, Huanghua Xu, Shumin Zhang, Difa Xu, Shiying Zhang, Xianfeng Yang   +9 more
doaj   +1 more source