Reconfigurable Phototransistors Driven by Gate-Dependent Carrier Modulation in WSe/TaNiSe van der Waals Heterojunctions.

Reconfigurable field-effect transistors (RFETs) offer notable benefits on electronic and optoelectronic logic circuits, surpassing the integration, flexibility, and cost-efficiency of conventional complementary metal-oxide semiconductor transistors. The low on/off current ratio of these transistors remains a considerable impediment in the practical application of RFETs. To overcome these limitations, a van der Waals heterojunction (vdWH) transistor composed of WSe/TaNiSe has been proposed.

High-sensitivity hybrid MoSe/AgInGaS quantum dot heterojunction photodetector.

Zero-dimensional (0D)-two-dimensional (2D) hybrid photodetectors have received widespread attention due to their outstanding photoelectric performances. However, these devices with high performances mainly employ quantum dots that contain toxic elements as sensitizing layers, which restricts their practical applications. In this work, we used eco-friendly AgInGaS quantum dots (AIGS-QDs) as a highly light-absorbing layer and molybdenum diselenide (MoSe) as a charge transfer layer to construct a 0D-2D hybrid photodetector.

Hybrid mixed-dimensional WTe/CsPbIperovskite heterojunction for high-performance photodetectors.

Perovskites have showed significant potential for the application in photodetectors due to their outstanding electrical and optical properties. Integrating two-dimensional (2D) materials with perovskites can make full use of the high carrier mobility of 2D materials and strong light absorption of perovskite to realize excellent optoelectrical properties. Here, we demonstrate a photodetector based on the WTe/CsPbIheterostructure.

High-Gain MoS/TaNiSe Heterojunction Photodetectors with Charge Transfer and Suppressing Dark Current.

Emerging two-dimensional narrow band gap materials with tunable band gaps and unique electrical and optical properties have shown tremendous potential in broadband photodetection. Nevertheless, large dark currents severely hinder the performance of photodetectors. Here, a MoS/TaNiSe van der Waals heterostructure device was successfully fabricated with a high rectification ratio of ∼10 and an ultralow reverse bias current of the pA level.

Immobilizing Ionic Liquids onto Functionalized Surfaces for Sensing Volatile Organic Compounds.

Herein, a highly sensitive volatile organic compound (VOC) gas sensor is demonstrated using immobilized ionic liquid (IL), 1-butyl-3-methylimidazolium hexafluorophosphate, onto surfaces functionalized by the quaternary ammonium group -NR, -COOH, and -NH, , N-IL, COOH-IL, and NH-IL, respectively. These functional groups ensure highly tunable interactions between the IL and surfaces, efficiently modulating the electrical resistance of the immobilized IL upon exposure to acetone and toluene. The immobilized IL to both acetone and toluene displays significant electronic resistance changes at a concentration of 150 ppm, falling in the order NH-IL > N-IL > COOH-IL for acetone while COOH-IL > NH-IL > N-IL for toluene.

Calculation Model of Regional Economic Growth Efficiency by Intelligently Optimized Interunit Layout.

With the development of the economy, especially since the reform and opening up, the actual conditions that China's economic development faces have also changed, and the development goals have also been adjusted accordingly. However, since the reform and opening up, China's economy has still largely relied on the extended reproduction of the extension type. It basically develops along a high-input, low-efficiency path.

Assessment of low-dose paranasal sinus CT imaging using a new deep learning image reconstruction technique in children compared to adaptive statistical iterative reconstruction V (ASiR-V).

Purpose: To compare the effects of deep learning image reconstruction (DLIR) and adaptive statistical iterative reconstruction V (ASiR-V) on image quality in low-dose computed tomography (CT) of paranasal sinuses in children.

Methods: Low-dose CT scans of the paranasal sinuses in 25 pediatric patients were retrospectively evaluated. The raw data were reconstructed with three levels of DLIR (high, H; medium, M; and low, L), filtered back projection (FBP), and ASiR-V (30% and 50%).

Interfacial electronic properties of metal/CsSnBrheterojunctions.

All-inorganic lead-free perovskite CsSnBr, has been proved good stability and optoelectronic properties in theory and experiment. However, the interfacial electronic properties of metal/CsSnBrare still unclear in electronic devices. Herein, we systematically investigate the interfacial properties of metal electrodes (Al, Ag and Au) and CsSnBrwith different atomic terminals (SnBr-T and CsBr-T) through the first-principles calculation.

[Release of gastrocnemius aponeurosis and suture of the Achilles tendon end scar tissue managing the chronic Achilles tendon rupture].

Objective: To investigate the clinical effect of scar tissue suture at the broken end of Achilles tendon after gastrocnemius aponeurosis release in the treatment of chronic Achilles tendon rupture.

Methods: The clinical data of 17 patients with old achilles tendon rupture treated from January 2017 to December 2019 were analyzed retrospectively, including 15 males and 2 females, aged 26 to 53 years with an average of (35.2±11.

High responsivity of hybrid MoTe/perovskite heterojunction photodetectors.

Two-dimensional (2D) van der Waals heterojunction offers alternative facile platforms for many optoelectronic devices due to no-dangling bonds and steep interface carrier gradient. Here, we demonstrate a 2D heterojunction device, which combines the benefits of high carrier mobility of 2D MoTeand strong light absorption of perovskite, to achieve excellent responsivity. This device architecture is constructed based on the charge carriers separation and transfer with the high-gain photogating effect at the interface of the heterojunction.

Toward Unusual-High Hole Mobility of p-Channel Field-Effect-Transistors.

The relative low hole mobility of p-channel building block device challenges the continued miniaturization of modern electronic chips. Metal-semiconductor junction is always an efficient strategy to control the carrier concentration of channel semiconductor, benefiting the carrier mobility regulation of building block device. In this work, complementary metal oxide semiconductor (CMOS)-compatible metals are selected to deposit on the surface of the important p-channel building block of GaSb nanowire field-effect-transistors (NWFETs), demonstrating the efficient strategy of hole mobility enhancement by metal-semiconductor junction.

Brain magnetic resonance imaging findings and radiologic review of maple syrup urine disease: Report of three cases.

Background: Maple syrup urine disease (MSUD) is a rare autosomal-recessive disorder that affects branched-chain amino acid (BCAA) metabolism and is named after the distinctive sweet odor of affected infants' urine. This disease is characterized by the accumulation of BCAAs and corresponding branched-chain ketoacids of leucine, isoleucine, and valine in the plasma, urine, and cerebrospinal fluid. However, the mechanisms of MSUD-induced brain damage remain poorly defined.

Imaging manifestations of congenital mesoblastic nephroma.

Objective: Congenital mesoblastic nephroma (CMN) is a rare renal tumor mainly observed in infants and young children. This study aims to analyze the imaging manifestations of CMN to improve the understanding of the disease.

Methods: The imaging manifestations and clinical records of all pediatric patients with CMN admitted to our hospital over the last 7 years were retrospectively analyzed.

Computed tomography and magnetic resonance imaging of adenoid cystic carcinoma in the maxillary sinus: a retrospective study with radiologic-histopathologic correlations.

Objective: The aim of this study was to investigate computed tomography (CT) and magnetic resonance imaging (MRI) findings in adenoid cystic carcinoma (ACC) in the maxillary sinus and their correlations with the tubular, cribriform, and solid histopathologic types of ACC.

Study Design: Twenty cases of histopathologically proven ACC in the maxillary sinus were retrospectively reviewed. CT and MRI findings were correlated with histopathologic results.

Prolonged viral shedding in feces of pediatric patients with coronavirus disease 2019.

Objective: To determine the dynamic changes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA in respiratory and fecal specimens in children with coronavirus disease 2019 (COVID-19).

Methods: From January 17, 2020 to February 23, 2020, three paediatric cases of COVID-19 were reported in Qingdao, Shandong Province, China. Epidemiological, clinical, laboratory, and radiological characteristics and treatment data were collected.

Two-Dimensional Pnictogen for Field-Effect Transistors.

Two-dimensional (2D) layered materials hold great promise for various future electronic and optoelectronic devices that traditional semiconductors cannot afford. 2D pnictogen, group-VA atomic sheet (including phosphorene, arsenene, antimonene, and bismuthene) is believed to be a competitive candidate for next-generation logic devices. This is due to their intriguing physical and chemical properties, such as tunable midrange bandgap and controllable stability.

Transition metal oxide@hydroxide assemblies as electrode materials for asymmetric hybrid capacitors with excellent cycling stabilities.

In this work, three-dimensional cactus-like CoO@Ni(OH) electrode materials are grown directly on Ni foam a two-step hydrothermal method. The as-prepared products possess a specific capacitance of 464.5 C g at 0.

Black phosphorene as a hole extraction layer boosting solar water splitting of oxygen evolution catalysts.

As the development of oxygen evolution co-catalysts (OECs) is being actively undertaken, the tailored integration of those OECs with photoanodes is expected to be a plausible avenue for achieving highly efficient solar-assisted water splitting. Here, we demonstrate that a black phosphorene (BP) layer, inserted between the OEC and BiVO can improve the photoelectrochemical performance of pre-optimized OEC/BiVO (OEC: NiOOH, MnO and CoOOH) systems by 1.2∼1.

Boron ink assisted in situ boron nitride coatings for anti-oxidation and anti-corrosion applications.

Graphene as a coating material that shows high impermeability as an excellent barrier in oxidation and corrosion protection has been reported to be less stable at elevated temperature. Sometimes the formed galvanic cell between the graphene and protective surface will even increase the corrosion speed. In comparison, boron nitride (BN), which shows the same impermeability with graphene, is believed to be a better coating material with its superior thermal and chemical inertness.

Laser direct-writing electrode for rapid customization of a photodetector.

The interdigital Ag electrode is fabricated via a simple and fast approach called laser direct writing (LDW). The morphology and conductivity of electrode fingers are investigated systematically under different experimental parameters, including the laser spot size, laser power, and scanning speed. "Dose" describes the combined influence of these experimental parameters.

Band offsets in new BN/BX (X = P, As, Sb) lateral heterostructures based on bond-orbital theory.

Identifying heterostructures with tunable band alignments remains a difficult challenge. Here, based on bond-orbital theory, we propose a series of new BN/BX (X = P, As, Sb) lateral heterostructures (LHS). Our first principles calculations reveal that the LHS interlines have a substantial impact on the electronic properties.

Metal Halide Perovskites: Synthesis, Ion Migration, and Application in Field-Effect Transistors.

The past several years have witnessed tremendous developments of metal halide perovskite (MHP)-based optoelectronics. Particularly, the intensive research of MHP-based light-emitting diodes, photodetectors, and solar cells could probably reform the optoelectronic semiconductor industry. In comparison, in spite of the large intrinsic charge carrier mobility of MHPs, the development of MHP-based field-effect transistors (MHP-FETs) is relatively slow, which is essentially due to the gate-field screening effect induced by the ion migration and accumulation in MHP-FETs.

Enhanced Mutant Compensates for Defects in Rhodopsin Phosphorylation in the Presence of Endogenous Arrestin-1.

We determined the effects of different expression levels of arrestin-1-3A mutant with enhanced binding to light-activated rhodopsin that is independent of phosphorylation. To this end, transgenic mice that express mutant rhodopsin with zero, one, or two phosphorylation sites, instead of six in the WT mouse rhodopsin, and normal complement of WT arrestin-1, were bred with mice expressing enhanced phosphorylation-independent arrestin-1-3A mutant. The resulting lines were characterized by retinal histology (thickness of the outer nuclear layer, reflecting the number of rod photoreceptors, and the length of the outer segments, which reflects rod health), as well as single- and double-flash ERG to determine the functionality of rods and the rate of photoresponse recovery.