Abstract A rapidly formed supramolecular polypeptide–DNA hydrogel was prepared and used for in situ multilayer three‐dimensional bioprinting the first time. By alternative deposition of two complementary bio‐inks, designed structures can be printed. Based on their healing properties high mechanical strengths, printed are geometrically uniform without boundaries keep shapes up to millimeter scale collapse. 3D cell printing demonstrated fabricate live‐cell‐containing with normal cellular...

Abstract Infrared photodetectors have been widely applied in various fields, including thermal imaging, biomedical and communication. Van der Waals (vdW) integration based on 2D materials provides a new solution for high‐performance infrared due to the versatile device configurations excellent photoelectric properties. In recent years, great progress has made vdW integration. this review, integration‐based is presented. First, working mechanisms advantages of with different structures band...

Abstract Polarized photodetection based on anisotropic two‐dimensional materials display promising prospects for practical application in optical communication and optoelectronic fields. However, most of the reported polarized are limited by lack valid tunable strategy low linear dichroism ratio. A peculiar noble metal dichalcogenide—PdSe 2 with a puckered pentagonal structure abnormal conversion—potentially removes these restrictions is demonstrated this study. Herein, azimuth‐dependent...

Solution-processable organometal halide perovskites have been emerging as very promising materials for light-emitting diodes (LEDs) because of their high color purity, low cost, and photoluminescence quantum yield. However, electroluminescent performance is still limited by incomplete surface coverage inefficient charge injection into the perovskite. Here, we demonstrate highly efficient perovskite LEDs (PeLEDs) incorporating full film bipolar within active layer introducing precursor...

Abstract 2D materials have shown great promise for next‐generation high‐performance photodetectors. However, the performance of photodetectors based on is generally limited by tradeoff between photoresponsivity and photodetectivity. Here, a novel junction field‐effect transistor (JFET) photodetector consisting PdSe 2 gate MoS channel constructed to realize high responsivity detectivity through effective modulation top back gate. The JFET exhibits carrier mobility 213 cm V −1 s . What more, 6...

Abstract The fascinating two‐dimensional (2D) materials are being potentially applied in various fields from science to engineering benefitting the charming physical and chemical properties on optics, electronics, magnetism, compared with bulk crystal, while piezotronics is a universal pervasive phenomenon broking center symmetry, promoting new field notable achievements of 2D higher accuracy sensitivity. For example, 20 parts per billion detecting limitations NO 2 sensor, 500 μm spatial...

Efficient and spectrally stable pure-red perovskite light-emitting diodes (PeLEDs) are still rare urgently needed for high-definition display. The traditional color tuning method by varying halide composition undergoes phase segregation has spectral instability issues. Instead of mixing, we fabricate PeLEDs based on quasi-two-dimensional (quasi-2D) perovskites simultaneously incorporating phenethylammonium (PEA) 1-naphthylmethylammonium (NMA) cations. control PEA NMA cospacer ratio modulates...

Two-dimensional (2D) ferroelectrics have attracted intensive attention. However, the 2D remain rare, and especially few of them represent high ferroelectric transition temperature (TC), which is important for usability ferroelectrics. Herein, CuCrS2 nanoflakes are synthesized by salt-assisted chemical vapor deposition exhibit switchable polarization even when thickness downscaled to 6 nm. On contrary, a nanoflake shows TC as ∼700 K, can be attributed robust tetrahedral bonding configurations...

Developing spatially controlled and universal p-type doping of transition-metal dichalcogenides (TMDs) is critical for optoelectronics. Here, a facile p-doping strategy via Sn4+ ions exchanging proposed the PdSe2 demonstrated systematically as example. The polarity can be modulated from n-type to bipolar precisely by changing concentration SnCl4 solution. modulation effectively reduces electron improves work function ∼72 meV. In addition, solution-processable route makes possible, which...

Inorganic lead-free perovskite nanocrystals (NCs) with broadband self-trapped exciton (STEs) emission and low toxicity have shown enormous application prospects in the field of display lighting. However, white light-emitting diodes (WLEDs) based on a single-component material high photoluminescence quantum yield (PLQY) remain challenging. Here, we demonstrate novel codoping strategy by introducing Sb3+/Mn2+ ions to achieve tuneable dual Cs3InCl6 NCs. The PLQY increases 59.64% after doping...

We present a new approach for Field Programmable Gate Array (FPGA) testing that exploits the reprogrammability of FPGAs to create Built-In Self-Test (BIST) logic only during off-line test. As result, BIST is achieved without any area overhead or performance penalties system function implemented by FPGA. Our applicable all levels testing, achieves maximal fault coverage, and tests are applied at-speed. describe architecture used test programmable blocks in an FPGA configurations required...

The electronic and optical properties of the cubic perovskite, BaSnO3, are compared with well-known transparent conducting oxides (TCOs), SnO2 In2O3. band gaps undoped compounds, as measured by diffuse reflectance spectroscopy on powdered samples, 3.1 eV for BaSnO3 3.8 SnO2. Electronic structure calculations show that both compounds possess a large conduction dispersion, which suggests like SnO2, should be good TCO if it can n-doped. To explore this possibility substitutionally doped,...

Organic-inorganic hybrid perovskites have drawn considerable attention due to their great potentials in lighting and displaying. Despite progress being demonstrated light-emitting diodes (PeLEDs), the commercialization of PeLEDs was still limited by low efficiencies poor device stabilities. Utilizing metallic nanoparticles a feasible way further improve PeLEDs. Herein, substantially enhanced electroluminescent performance CH3NH3PbBr3-based were first incorporating plasmonic gold (Au NPs)...

Due to their unique properties, rare-earth doped upconversion luminescence (UCL) nanomaterials are of considerable scientific interest. Meanwhile, alkaline-earth sulfide materials based on a completely different electron trapping (ET) mechanism demonstrate extremely high UCL efficiencies, which several dozens times more than those conventional fluoride nanomaterials. However, the large particle size, easy hydrolysis, and difficulty in achieving uniform dispersion have precluded bioassay...

Abstract 2D rare earth (RE) materials have received considerable attention in recent years due to the fascinating luminescence, magnetism, and electric properties originated from RE associated with sharp various emission peaks, intrinsic ferromagnetism, incommensurate charge density wave. These might open up a new prospect next‐generation lighting, magnetic devices, phototransistors. Herein, comprehensive review of is presented, focusing on their progresses. First, crystal structures are...

The structure of binary ${\text{As}}_{x}{\text{S}}_{1\ensuremath{-}x}$ glasses is elucidated using modulated differential scanning calorimetry, Raman scattering, IR reflectance, and molar volume experiments over a wide range $(8%<x<41%)$ compositions. We observe reversibility window in the calorimetric experiments, which permits fixing three elastic phases: flexible at $x<22.5%$, intermediate $22.5%<x<29.5%$ range, stressed rigid $x>29.5%$. scattering supported by first-principles cluster...