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Thermoelectric Power Generation
In article number 2403020, Gang Pei, Bin Zhao, Chongwen Zou, and co‐workers present an innovative all‐day power generation strategy that adaptively integrates diurnal photothermal and nocturnal radiative cooling processes into the thermoelectric generator via a spectrally dynamically modulated coating, which opens up new possibilities for continuous power supply during...
Energy conversion from the environment into electricity is the most direct and effective electricity source to sustainably power off‐grid electronics, once the electricity requirement exceeds the capability of traditional centralized power supply systems. Normally photovoltaic cells have enabled distributed power generation during the day, but do not work at night. Thus, efficient electricity generation...
The regulation of the crystal structure of oxygen evolution cocatalyst (OEC) is a promising strategy for enhancing the photoelectrochemical efficiency of photoanodes. However, the prevailing regulating approach typically requires a multistep procedure, presenting a significant challenge for maintaining the structural integrity and performance of the photoanode. Herein, FeOOH with a local disordered...
Silica is a promising shell coating material for colloidal nanoparticles due to its excellent chemical inertness and optical transparency. To encapsulate high‐quality colloidal nanocrystals with silica shells, the silane coupling hydrolysis is currently the most effective approach. However, this reaction requires water, which often adversely affects the intrinsic physicochemical properties of nanocrystals...
The poor reversibility and stability of Zn metal anode (ZMA) caused by uncontrolled Zn deposition behaviors and serious side reactions severely impeded the practical application of aqueous Zn metal battery. Herein, a liquid‐dynamic and self‐adaptive protective layer (LSPL) was constructed on the ZMA surface for inhibiting dendrites and by‐products formation. Interestingly, the outer LSPL consists...
Sluggish oxygen evolution reactions on photoanode surfaces severely limit the application of photoelectrochemical (PEC) water splitting. The loading of cocatalysts on photoanodes has been recognized as the simplest and most efficient optimization scheme, which can reduce the surface barrier, provide more active sites, and accelerate the surface catalytic reaction kinetics. Nevertheless, the introduction...
The dendrite growth and parasitic reactions that occur on Zn metal anode (ZMA)/electrolyte interface hinder the development of aqueous zinc ion batteries (AZIBs) in next‐generation renewable energy storage systems. Fortunately, reconstructing the inner Helmholtz layer (IHL) by introducing an electrolyte additive, is viewed as one of the most promising strategies to harvest the stable ZMA. Herein,...
Owing to outstanding optoelectronic properties, lead halide perovskite nanocrystals (PNCs) are considered promising emitters for next‐generation displays. However, the development of pure blue (460‐470 nm) perovskite nanocrystal light‐emitting diodes (PNC‐LEDs), which correspond to the requirements of Rec. 2020 standard, lag far behind that of their green and red counterparts. Here, pure blue CsPb(Br/Cl)...
Owing to their excellent properties, lead halide perovskites have attracted extensive attention in the photoelectric field. Presently, the certified power conversion efficiency of perovskite solar cells has reached 25.7%, the specific detectivity of perovskite photodetectors has exceeded 1014 Jones, and the external quantum efficiency of perovskite‐based light‐emitting diode has exceeded 26%. However,...
In this work, inspired by the great advantage of the unique “brick‐mortar” layered structure as electromagnetic interference (EMI) shielding materials, a multifunctional flexible graphene nanosheets (GNS)/polytetrafluoroethylene (PTFE) composite film with excellent EMI shielding effects, impressive Joule heating performance, and light‐to‐heat conversion efficiency is fabricated based on the self‐emulsifying...
Formamidine lead iodide (FAPbI3) is an important material for realizing high‐performance near‐infrared light‐emitting diodes (NIR‐LEDs). However, due to the uncontrollable growth of solution‐processed films which usually causes low coverage, and poor surface morphology, the development of FAPbI3‐based NIR‐LEDs is hindered, restraining its potential industrial applications. In this work, by employing...
Conjugated polymer polypyrrole (PPy) with high electrical conductivity and excellent photothermal effect has been adopted as multifunctional surface modifier on ternary metal sulfide (CdIn2S4, CIS) photoanode for photoelectrochemical (PEC) water splitting for the first time. As a p‐type conducting polymer, PPy forms p–n junction with n‐type CIS to relieve the bulk carrier recombination. Besides, the...
Zinc metal is an ideal candidate for aqueous rechargeable batteries due to its high theoretical capacity and natural abundance. However, its commercialization is inevitably challenged by several critical factors such as dendrite growth and parasitic side‐reactions, leading to low coulombic efficiency and a limited lifespan. Herein, a modified Zn foil with a zincophilic ZnSe layer deposited by a simple...
Organic–inorganic hybrid MAPbI3 microwires show unique optoelectronic properties for high performances of photodetectors (PDs). However, the defects‐assisted nonradiative recombination is harmful for carrier transport, which limits the performances improvement of MAPbI3 microwires PDs. Traditional organic passivation agents effectively combine the surface defects of microwires and also reduce the...
In article number 2006496, Liang Li, Guanghai Li, and co‐workers synthesize silicon‐based semiconductor Si2Te3 crystals using a chemical vapor deposition technique. The combined features of silicon and layered structure bridge the 2D materials family and silicon‐based materials family together, while the intrinsic defects in Si2Te3 yield ultrawide photoluminescence spectra and broadband spectral response...
Silicon‐based semiconductor materials dominate modern technology for more than half a century with extraordinary electrical‐optical performance and mutual processing compatibility. Now, 2D materials have rapidly established themselves as prospective candidates for the next‐generation semiconductor industry because of their novel properties. Considering chemical and processing compatibility, silicon‐based...
As the fastest developing photovoltaic device, perovskite solar cells have achieved an extraordinary power conversion efficiency (PCE) of 25.3% under AM 1.5 illumination. However, few studies have been devoted to perovskite solar cells harvesting artificial light, owing to the great challenge in the simultaneous manipulation of bandgap‐adjustable perovskite materials, corresponding matched energy...
Low‐dimensional semiconductors have attracted considerable attention due to their unique structures and remarkable properties, which makes them promising materials for a wide range of applications related to electronics and optoelectronics. Herein, the preparation of 1D Sb2Se3 nanowires (NWs) with high crystal quality via chemical vapor deposition growth is reported. The obtained Sb2Se3 NWs have triangular...
Novel self‐powered nanoscale photodetectors that can work without an external power source, which have great application potential in next‐generation nanodevices that operate wirelessly and independently, are being widely studied. This review aims to give a comprehensive summary of the state‐of‐the‐art research results on self‐powered nanoscale photodetectors. An introduction of recent progress on...
Hybrid organic–inorganic perovskite materials garner enormous attention for a wide range of optoelectronic devices. Due to their attractive optical and electrical properties including high optical absorption coefficient, high carrier mobility, and long carrier diffusion length, perovskites have opened up a great opportunity for high performance photodetectors. This review aims to give a comprehensive...
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