Abstract Ultraviolet photodetectors (UV PDs) with “5S” (high sensitivity, high signal‐to‐noise ratio, excellent spectrum selectivity, fast speed, and great stability) have been proposed as promising optoelectronics in recent years. To realize high‐performance UV PDs, heterojunctions are created to form a built‐in electrical field for suppressing recombination of photogenerated carriers promoting collection efficiency. In this progress report, the fundamental components including response...

Abstract A self‐powered, high‐performance Ti 3 C 2 T x MXene/GaN van der Waals heterojunction (vdWH)‐based ultraviolet (UV) photodiode is reported. Such integration creates a Schottky junction depth that larger than the UV absorption to sufficiently separate photoinduced electron/hole pairs, boosting peak internal quantum efficiency over unity and external 99% under weak light without bias. The proposed /GaN vdWH demonstrates pronounced photoelectric performances working in self‐powered...

Solar radiation, especially ultraviolet (UV) light, is a major hazard for most skin-related cancers. The growing needs wearable health monitoring systems call high-performance real-time UV sensor to prevent skin diseases caused by excess exposure. To this end, here novel self-powered p-CuZnS/n-TiO2 photodetector (PD) with high performance successfully developed (responsivity of 2.54 mA W-1 at 0 V toward 300 nm). Moreover, effectively replacing the Ti foil thin wire anodization process,...

Abstract Data Repository of Antimicrobial Peptides (DRAMP, http://dramp.cpu-bioinfor.org/ ) is an open-access comprehensive database containing general, patent and clinical antimicrobial peptides (AMPs). Currently DRAMP has been updated to version 2.0, it contains a total 19,899 entries (newly added 2,550 entries), including 5,084 general entries, 14,739 76 entries. The update covers new structures, annotations, classifications downloads. Compared with APD CAMP, 14,040 (70.56% in DRAMP)...

Self-powered photodetectors can work with low power consumption or even without any supply from external sources, and they are recognized as one of the developing trends next-generation optoelectronic devices. As most-known n-type metal oxides applied in electronic devices, ZnO nanostructures their heterostructures other appropriate materials have been widely assembly self-powered UV photodetectors. In this review, recent research on different types ZnO-based is outlined. dimensionalities...

Abstract Encouraged by the increasing requirements of intelligent equipment, silicon integrated circuit–compatible photodetectors that support single‐chip photonic–electronic systems have gained considerable progresses. Advanced materials resulted in enhanced device performance based on traditional photovoltaic effect and photoconductive effect, novel designs catalyzed new working mechanisms combing rapid photoresponse high responsivity gain. Surprising applications are developed using...

A leaf-inspired transparent MXene electrode for UV photodetectors with outstanding flexibility breaks the tradeoff between high transmittance and conductivity.

The rapid development of wearable devices puts forward higher requirements for mass-produced integrated smart systems that incorporate multiple electric components, such as energy supplying, multisensing, and communicating. To synchronously realize continuously self-powering, multifunctional sensing, distinguish signals from different stimuli, productively design fabricate a large-area sensing array, an all-fabric-based self-powered pressure–temperature-sensing electronic skin (e-skin) was...

Endowing photodetectors with mechanically flexibility and actual functionality are current research issues in developing optoelectronic devices. However, rigid metal-based or metal-oxide-based electrodes remain a block to the realization of ultraflexible electronics. Thus, an all-organic photodetector (all-OPD) is designed by innovatively introducing symmetrical organic PH1000/PH1000 substitute widely applied indium-doped tin oxide (ITO)/Ag electrodes. Specifically, this all-OPD exhibits...

Abstract Fluorescent type nuclear battery consisting of scintillator and photovoltaic device enables semipermanent power source for devices working under harsh circumstances without instant energy supply. In spite the progress structure design, development scintillators is far behind. Here, a Cs 3 Cu 2 I 5 : Mn showing high light yield ~67000 ph MeV −1 at 564 nm presented. Doping intrinsic features endow with robust thermal stability irradiation hardness that 71% or >95% initial...

Abstract Tunable work function has a high profile for the MXene‐based optoelectronic devices, and surface modification provides huge potential to shift its Fermi level modulate function. In this work, window of MXene's is engineered from 4.55 5.25 eV by with LiF, Se, polyethylenimine ethoxylated (PEIE). The vertical p‐CsCu 2 I 3 /n‐Ca Nb 3‐ x Ta O 10 junction photodetectors are constructed on basis above surface‐modified MXenes, which changes Schottky barrier between n‐Ca electrodes....

Abstract In solid polymer electrolytes (SPEs) based Li–metal batteries, the inhomogeneous migration of dual‐ion in cell results large concentration polarization and reduces interfacial stability during cycling. A special molecular‐level designed electrolyte (MDPE) is proposed by embedding a functional group (4‐vinylbenzotrifluoride) polycarbonate base. MDPE, matrix obtained copolymerization vinylidene carbonate 4‐vinylbenzotrifluoride coupled with anion lithium‐salt hydrogen bonding “σ‐hole”...

Abstract Transition metal phosphides (MP x ) with high theoretical capacities and low cost are regarded as the most promising anodes for lithium‐ion batteries (LIBs), but large volume variations sluggish kinetics largely restrict their development. To solve above challenges, herein a generic effective method is proposed to encapsulate various monodispersed MP into flexible carbon multi‐chambers @NC, MNi, Fe, Co, Cu, etc.) pre‐reserved voids, working LIBs markedly boosting Li + storage...

We first report two-dimensional (2D) perovskite Ca2Nb3O10 ultraviolet photodetectors (UV PDs), which are prepared via a facile calcination-exfoliation method. The 2D PDs demonstrate high performance at 3 V 280 nm, responsivity (14.94 A W–1), detectivity (8.7 × 1013 Jones), spectral selectivity (R280/R400 = 8.84 103), fast speed (0.08/5.6 ms), and long-term stability, exceeding those of most reported UV PDs. Furthermore, the integrated with poly(ethylene terephthalate) (PET) show excellent...

Abstract ZnS, as one of the first semiconductors discovered and a rising material star, has embraced exciting breakthroughs in past few years. To shed light on design principles engineering techniques ZnS for improved/novel optoelectronic properties, fundamental mechanisms commonly employed strategies are proposed this review. Recent progress modifications allows it to be extensively effectively used versatile applications, including transparent conductors, UV photodetectors, luminescent...

Abstract Large‐area BiOCl nanosheet arrays grown on Cu substrate are transferred onto the polydimethylsiloxane (PDMS) substrate, while as‐fabricated BiOCl/PDMS photodetector (PD) yields negligible photocurrents under UV light illumination. The introduction of a Ti 3 C 2 T x MXene conduction layer at interface increases both photocurrent and dark current by 2–3 orders magnitude. But this PD suffers from large (6.7 pA), low on–off ratio (2.4), long decay time (6.87 s) 350 nm illumination 5 V....

Abstract ZnO film ultraviolet photodetectors (UV PDs) have always suffered from slow speed and low photosensitivity that restrict their broader applications. To break through those barriers, high‐performance UV PD based on self‐polarized BaTiO 3 (BTO) is first introduced a facile one‐step spin‐coating method. Compared with pure on/off ratio (65) (4.1/7.5 s) at V bias under 350 nm light, the BTO‐ZnO bilayer device exhibits an ultrahigh (14 300) ultrafast response (0.11/5.80 ms), which much...

Abstract A novel inorganic–organic heterojunction (TiO 2 /P3HT (poly(3‐hexylthiophene)) is easily prepared by a combination of anodization and vacuumed dip‐coating methods, the constructed flexible fibrous photodetector (FPD) exhibits high‐performance self‐powered UV–visible broadband photoresponse with fast speed, high responsivity, good stability, as well highly stable performance at bending states, showing great potential for wearable electronic devices. Moreover, Au nanoparticles are...

Abstract Interfacial engineering and heterostructures designing are two efficient routes to improve photoelectric characteristics of a photodetector. Herein, Ti 3 C 2 MXene/Si heterojunction photodetector with ultrahigh specific detectivity (2.03 × 10 13 Jones) remarkable responsivity (402 mA W −1 ) at zero external bias without decline as increasing the light power is reported. This achieved by chemically regrown interfacial SiO x layer control MXene thickness suppress dark noise current...

Although LiNi0.8Co0.1Mn0.1O2 is attracting increasing attention on account of its high specific capacity, the moderate cycle lifetime still hinders large-scale commercialization applications. Herein, Ti-doped compounds are successfully synthesized. The Li(Ni0.8Co0.1Mn0.1)0.99Ti0.01O2 sample exhibits best electrochemical performance. Under voltage range 2.7-4.3 V, it maintains a reversible capacity 151.01 mAh·g-1 with retention 83.98% after 200 cycles at 1 C. Electrochemical impedance...