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GaN‐based lateral Schottky barrier diodes (SBDs) have attracted great attention for high‐power applications due to its combined high electron mobility and large critical breakdown field. However, the breakdown voltage (BV) of the SBDs are far from exploiting the material advantages of GaN at present, limiting the desire to use GaN for ultra‐high voltage (UHV) applications. Then, a golden question...
Schottky Barrier Diodes
GaN is a promising candidate for next‐generation power electronic devices, but its potential is far from being realized. In article number 2107301, Peng Chen, Rong Zhang, Youdou Zheng, and co‐workers demonstrate a high power figure‐of‐merit, 10.6‐kV AlGaN/GaN lateral Schottky barrier diode with single channel, and sub‐100‐μm anode‐to‐cathode spacing without any other additional...
Phospholipid nanoparticles have been actively employed for numerous biomedical applications. A key factor in ensuring effective and safe applications of these nanomaterials is the regulation of their interactions with target cells, which is significantly dependent on an in‐depth understanding of the nanoparticle‐cell interactions. To date, most studies investigating these nano‐bio interactions have...
To realize excellent selectivity of CH4 in CO2 photoreduction (CO2PR) is highly desirable, yet which is challenging due to the limited active sites for CH4 generation and severe electron‐hole recombination on photocatalysts. Herein, based on the theoretically calculated effects of vanadium incorporation into the laminate of layered double hydroxides (LDHs), V into NiAl‐LDH to synthesize a series of...
Hypoxic Tumor Therapy
In article number 2200786, Lili Feng, He Ding, Piaoping Yang, and co‐workers develop a near‐infrared (NIR)–triggered nanoplatform with controlled release of a heat shock proteins (HSPs) inhibitor for synergistic mild photothermal and enhanced Fenton nanocatalysis. Upon NIR irradiation, gambogic acid is released and inhibits the expression of HSP90. Notably, the nanoplatform simultaneously...
Mild photothermal therapy (PTT, <45 °C) can prevent tumor metastasis and heat damage to normal tissue, compared with traditional PTT (>50 °C). However, its therapeutic efficacy is limited owing to the hypoxic tumor environment and tumor thermoresistance owing to the overproduction of heat shock proteins (HSPs). Herein, a near‐infrared (NIR)‐triggered theranostic nanoplatform (GA‐PB@MONs@LA)...
Aggregation‐induced emission (AIE) fluorogens provide new opportunities to promote efficient reactive oxygen species (ROS) production in aggregates, which represent the promising candidates to construct theranostic nanoparticles for photodynamic therapy (PDT), but the size effect has been rarely explored. Herein, a universal method to fabricate organic nanoparticles with controllable sizes is reported...
Exploring catalyst reconstruction under the electrochemical condition is critical to understanding the catalyst structure–activity relationship as well as to design effective electrocatalysts. Herein, a PbF2 nanocluster is synthesized and its self‐reconstruction under the CO2 reduction condition is investigated. F− leaching, CO2‐saturated environment, and application of a cathodic potential induce...
Abnormal tumor metabolism causes the hypoxic microenvironment, which greatly limits the efficacy of photodynamic therapy (PDT). In this work, a strategy of metabolic reprogramming is proposed to economize O2 for enhanced PDT against hypoxic tumors. The carrier‐free O2‐economizer (designated as LonCe) is prepared based on the metabolic antitumor drug of Lonidamine (Lon) and the photosensitizer of chlorin...
Molybdenum phosphide (MoP) is regarded as one of the most promising alternatives to noble‐metal based electrocatalysts for efficient hydrogen evolution reaction (HER) due to its similar d‐band electronic structure to noble metals and tunable features associated with phase and composition. However, it still remains a great challenge to construct MoP electrocatalysts with abundant active sites that...
Tumor cells adapt to excessive oxidative stress by actuating reactive oxygen species (ROS)‐defensing system, leading to a resistance to oxidation therapy. In this work, self‐delivery photodynamic synergists (designated as PhotoSyn) are developed for oxidative damage amplified tumor therapy. Specifically, PhotoSyn are fabricated by the self‐assembly of chlorine e6 (Ce6) and TH588 through π–π stacking...
Heterostructured Electrocatalysts
In article number 2102413, Baocang Liu, Rui Gao, Jun Zhang, Bin Liu, and co‐workers report the construction of a novel heterostructured electrocatalyst of CePO4/MoP/carbon cloth (CC) constituting MoP nanobelts with surface‐decorated CePO4 nanoparticles on CC for hydrogen evolution reaction (HER). The CePO4/MoP/CC electrocatalyst exhibits a low overpotential of 48...
In article number 1906205, Bin Liu, Peng Chen, Rong Zhang, and co‐workers demonstrate ultralow‐threshold III‐nitride–based plasmonic nanolasers emitting from the green to the deep‐ultraviolet region by energetic electron beam injection. The interaction between electrons and photons in nano‐sized structure could provide innovative insight that will contribute to practical applications for computing...
Plasmonic nanolasers based on wide bandgap semiconductors are presently attracting immense research interests due to the breaking in light diffraction limit and subwavelength mode operation with fast dynamics. However, these plasmonic nanolasers have so far been mostly realized in the visible light ranges, or most are still under optical excitation pumping. In this work, III‐nitride‐based plasmonic...
Development of high‐performance and low‐cost nonprecious metal electrocatalysts is critical for eco‐friendly hydrogen production through electrolysis. Herein, a novel nanoflower‐like electrocatalyst comprising few‐layer nitrogen‐doped graphene‐encapsulated nickel–copper alloy directly on a porous nitrogen‐doped graphic carbon framework (denoted as NixCuy@ NG‐NC) is successfully synthesized using...
In article number 1901545, Wenjun Zhang and co‐workers synthesize a novel nanoflower‐like electrocatalyst comprising of few‐layer nitrogen‐doped graphene encapsulated nickel copper alloy on porous graphic carbon framework by a facile and scalable method, and it exhibits high activity and excellent stability for hydrogen evolution.
Carbon nanostructures supported semiconductors are common in photocatalytic and photoelectrochemical applications, as it is expected that the nanoconductors can improve the spatial separation and transport of photogenerated charge carriers. Transfer of charge carriers through the carbon‐semiconductor interface is the key electronic process, which determines the role of charge separation channels,...
Flexible strain sensors can detect physical signals (e.g., temperature, humidity, and flow) by sensing electrical deviation under dynamic deformation, and they have been used in diverse fields such as human motion detection, medical care, speech recognition, and robotics. Existing sensing materials have relatively low adaptability and durability and are not stretchable and flexible enough for complex...
Efficient organic photosensitizers are attractive for cancer cell ablation in photodynamic therapy. Bright fluorescent photosensitizers are highly desirable for simultaneous imaging and therapy. However, due to fundamental competition between emission and singlet oxygen generation, design attempts to increase singlet oxygen generation almost always leads to the loss of fluorescence. Herein, it is...
In article number 1702987, Cheng Zhong, Yida Deng, and co‐workers synthesize atomic layer Co3O4 nanosheets (1.6 nm thickness) by a simple solvothermal method with a controlled concentration of H2O2. The atomic layer Co3O4 nanosheets exhibit high bifunctional activity for the oxygen reduction reaction and oxygen evolution reaction, which is key to knittable Zn–air batteries. The batteries are successfully...
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