We developed a novel interface engineering strategy for highly stable and efficient SnO₂-based planar-perovskite solar cells.

A dopant–free polymeric hole transport material (HTM), <bold>RCP</bold>, based on benzo[1,2-<italic>b</italic>:4,5:<italic>b</italic>′]dithiophene and 2,1,3-benzothiadiazole exhibited a high efficiency of 17.3% in perovskite solar cell maintained its initial for over 1400 hours.

Abstract A new naphthalene diimide (NDI)‐based polymer with strong electron withdrawing dicyanothiophene (P(NDI2DT‐TTCN)) is developed as the transport layer (ETL) in place of fullerene‐based ETL inverted perovskite solar cells (Pero‐SCs). combination characterization techniques, including atomic force microscopy, scanning grazing‐incidence wide‐angle X‐ray scattering, near‐edge absorption fine‐structure spectroscopy, space‐charge‐limited current, electrochemical impedance photoluminescence...

Abstract Although perovskite solar cells (PSCs) have attracted enormous attention owing to their fascinating optoelectronic properties and solution processability, defects in PSCs, which adversely affect efficiency stability, are still not completely resolved. Herein, a novel indacenodithieno[3,2‐b]thiophene‐based small molecule (SM) additive (IDTT‐ThCz), capable of interacting with layers, is developed. In particular, the IDTT‐ThCz, can perform surface passivation, introduced into layer...

Highly stable planar perovskite solar cells without encapsulation were demonstrated by desirable heat dissipation and morphology of hole-transporting materials.

Naphthalene diimide (NDI)-based copolymers are promising polymer acceptors in all-polymer solar cells (all-PSCs), but their large crystal domains cause large-scale phase separation blend films. This limits the photovoltaic performance and mechanical stability of all-PSCs. Herein, we control films by introducing a fluorinated copolymer NDI (E)-1,2-bis(3-fluorothiophen-2-yl)ethene (FTVT) (PNDI–FTVT) as acceptor for flexible The PNDI–FTVT has less crystalline structure higher electron mobility...

In this study, we demonstrated the effects of molecular weight (MW) a green processable polymer (asy-PBTBDT) on its photovoltaic performance and thermal stability for first time.

We report a pentafluorobenzene-based additive (FPE) to control the donor/acceptor (D/A) interfacial morphology via quadrupolar electrostatic interactions between donor and acceptor polymers in all-polymer solar cells (all-PSCs). The changes are investigated using combination of atomic force microscopy, grazing incidence wide-angle X-ray scattering, near-edge absorption fine-structure spectroscopy. Unlike conventional solvent additive, such as 1,8-diiodooctane, bicontinuous interpenetrating...

The dominant hole transport material (HTM) used in perovskite quantum dot solar cells (PQD-SCs) is a Spiro-OMeTAD, which inevitably requires doping systems to increase charge mobility. However, the use of deliquescent dopants leads degradation PQD-SCs, necessitating development efficient dopant-free HTMs for their commercialization. Here, we designed three types HTMs: Asy-PDTS, Asy-PSDTS, and Asy-PSeDTS. We apply chalcogenide-based fluorinated benzothiadiazole as rigid segment acceptor unit...

Organic solar cells (OSCs) have emerged as promising energy harvesters owing to their outstanding optoelectronic properties, approaching a maximum power conversion efficiency of over 19%. However, single-junction OSCs limitations in improving transmission and thermalization losses. To alleviate these drawbacks, tandem configuration was devised, involving the stacking two subcells absorb broad spectrum minimize This strategy is not limited organic/organic-based systems but extends...

Abdominal fat accumulation is known to be strongly implicated in development of metabolic syndrome (MetS).We examined diagnostic values obesity-related parameters 95 men and 185 women, we determined optimal cutoff visceral area (VFA) waist circumference (WC) for predicting the presence multiple non-adipose components MetS.Receiver operating characteristic (ROC) curve analysis revealed that VFA was best indicator MetS.WC exhibited similar postmenopausal whereas WC inferior premenopausal women...

Adequate glycemic control is important for patients with end-stage renal disease on maintenance hemodialysis (HD). Continuous glucose monitoring (CGM) systems are reported as a useful method in under HD. The object of this study was to describe profiles and hypoglycemia associated HD diabetes using CGM system.We recruited nine medically stable type 2 CGMS System Gold (Medtronic MiniMed, Northridge, CA) applied the subjects 144 h. During period, glucose-containing dialysate performed every...

We designed and synthesized a novel conjugated polyelectrolyte (CPE), poly{3-[2-[4,8-bis(2-ethyl-hexyloxy)-6-methyl-1,5-dithia-s-indacen-2-yl]-9-(3-dimethylamino-propyl)-7-methyl-9H-fluoren-9-yl]-propyl}-dimethyl-amine (PBN). employed PBN as an electron-transporting layer on ZnO constructed highly efficient, inverted structure device consisting of mixture poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl})...

Monolithically integrated hybrid tandem solar cells (TSCs) that combine solution-processed colloidal quantum dot (CQD) and organic molecules are a promising device architecture, able to complement the absorption across visible infrared. However, performance of organic/CQD TSCs has not yet surpassed single-junction CQD cells. Here, strategic optical structure is devised overcome prior limit by employing multibuffer layer dual near-infrared (NIR) absorber. In particular, introduced solve...

Background Advanced information technology can be used when developing diagnostic and treatment strategies to provide better care for diabetic patients. However, the levels of need demand use technological advances have not been investigated in We proposed developed an individualized, ubiquitous (U)-healthcare service using advanced more effective glucose control. Prior our initiation, we surveyed patient needs other pertinent information. Methods During August 2009, conducted a 34-item...

The power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) using conjugated polymers (CPs) as hole-transport materials (HTMs) have been drastically enhanced. This is mainly attributed to the development CPs with high charge mobilities. In PSCs, HTMs play important roles in extracting and transporting photo-generated holes from layer. Thus, enhancing both transport HTM transfer at HTM/perovskite interface would be more beneficial than improving only enhance PCEs PSCs. this...

Background Chronic exposure to elevated levels of free fatty acids contributes pancreatic β-cell dysfunction. Although it is well known that metformin induces cellular energy depletion and a concomitant activation AMP-activated protein kinase (AMPK) through inhibition the respiratory chain, previous studies have shown inconsistent results with regard action on β-cells. We therefore examined effects β-cells under lipotoxic stress. Methods NIT-1 cells mouse islets were exposed palmitate...

Abstract Small molecules have been recently highlighted as active materials owing to their facile synthesisis method, well‐defined molecular structure, and highly reproducible performance. In particular, optimizing bulk heterojunction (BHJ) morphologies is important achieving high performance in solution‐processable small molecule solar cells (SM‐SCs). Herein, a series of benzodithiophene‐based with different halogen atoms substituted at the end‐group, are reported, well how these affect...

Insulin autoimmune syndrome, a rare cause of endogenous hyperinsulinemic hypoglycemia, is characterized by insulin autoantibody, hyperinsulinemia and fasting hypoglycemia. It well known that drugs containing sulfhydryl group such as methimazole or α-mercaptopropionyl glycine can induce syndrome. However, syndrome caused anti-tuberculosis treatment very rare. We report case after with review the relevant literature.

This paper deals with automatic defect classification (ADC) in semiconductor fabrication. The defects such as particle and scratch are automatically classified using a boosting approach. scheme is based on the Kullback-Leibler distance linear projection along feature vectors. generates features which discriminate maximally. combinations of Haar-like patterns frequency domain. By learning manner, recognized out other defects. And, we propose another spatial domain orientation histogram local...

This paper presents a human region segmentation algorithm for real-time video-call applications. Unlike conventional methods, the process is automatically initialized and motion of cameras not restricted. To be precise, our method by face detection results human/background regions are modeled with spatial color Gaussian mixture models (SCGMMs). Based on SCGMMs, we build cost function considering distributions pixels, smoothness, temporal coherence. Here, coherence term allows us to have...

In this paper, we present a novel human segmentation technique that automatically detects upper-body region in the selfie. To detect and segment without user interactions, develop an initial tri-map by combining face detection results shape prior Moreover, employ motion vectors between two images captured short time interval to deal with various poses cluttered backgrounds. From vectors, estimate implicit depth layers auxiliary hardware or time-consuming algorithms. By integrating...

Unwrap mosaic is a method for decomposing video into 2D texture and dense mapping that enable the reconstruction of from texture. This representation useful in some frameworks because we can edit videos by simply retouching textures. However, complexity conventional approaches too high to be adopted time-critical applications (it takes up several hours). In this letter, focus on face-related such as face editing replacement, propose unwrap approach these applications. To precise, adopt...