Efficient design of perovskite solar cell using mixed halide and copper oxide

Solar cells based on perovskites have emerged as a transpiring technology in the field of photovoltaic. These cells exhibit high power conversion efficiency. The perovskite material is observed to have good absorption in the entire visible spectrum which can be well illustrated by the quantum efficiency curve. In this paper, theoretical analysis has been done through device simulation for designing solar cell based on mixed halide perovskite. Various parameters have efficacy on the solar cell efficiency such as defect density, layer thickness, doping concentration, band offsets, etc. The use of copper oxide as the hole transport material has been analyzed. The analysis divulges that due to its mobility of charge carriers, it can be used as an alternative to spiro-OMeTAD. With the help of simulations, reasonable materials have been employed for the optimal design of solar cell based on perovskite material. With the integration of copper oxide into the solar cell structure, the results obtained are competent enough. The simulations have shown that with the use of copper oxide as hole transport material with mixed halide perovskite as absorber, the power conversion efficiency has improved by 6%.The open circuit voltage has shown an increase of 0.09 V, short circuit current density has increased by 2.32 m A/cm~2, and improvement in fill factor is 8.75%.     

Ball Convergence Theorems for Chebyshev-Halley Method in $\mathbb{B}$-Space

A local convergence analysis of Chebyshev-Halley method having third order of convergence for approximating zero of non-linear operator $f(v)=0$ by using convex majorant function and their condition in $\mathbb{B}$-space (Banach space), is presented in this article. We give the error estimate to show the efficiency of our study. Besides, we established the relation between majorant function and Kantorovich or Smale-type result as special cases of our general theory.     

Affine and projective lines over one-dimensional semilocal domains

We characterize those partially ordered sets that can occur as the spectra of polynomial rings over one-dimensional semilocal (Noetherian) domains. We also determine the posets that can occur as projective lines over one-dimensional semilocal domains.

     

Spectroscopic investigation of light strange S=-1 Λ and Σ and S=-2 Ξ baryons

The present study is dedicated to light-strange Δ with strangeness S=-1 and isospin I=0,E with S=-1 and I=1,and Ξ baryon with S=-2 and I=1/2. In this study,the hypercentral constituent quark model with linear confining potential has been employed along with a first order correction term to obtain the resonance masses up to approximately 4 GeV.The calculated states include 1 S-5 S,1 P-4 P,1 D-3 D,1 F-2 F,and 1 G(in a few cases) along with all possible spin-parity assignments.Regge trajectories have been explored for the linearity of the calculated masseJ for(n,M2) and(J,M2).Magnetic moments have been intensively Ltudied for ground Utate spin 1/2 and 3/2, in addition to the configuration mixing of the first negative parity state for Ξ.Lastly,the transition magnetic moments and radiative decay widths have been presented.     

The phospholipid membrane compositions of bacterial cells,cancer cell lines and biological samples from cancer patients

While cancer now impacts the health and well-being of more of the human population than ever before, the exponential rise in antimicrobial resistant (AMR) bacterial infections means AMR is predicted to become one of the greatest future threats to human health. It is therefore vital that novel therapeutic strategies are developed that can be used in the treatment of both cancer and AMR infections. Whether the target of a therapeutic agent be inside the cell or in the cell membrane, it must either interact with or cross this phospholipid barrier to elicit the desired cellular effect. Here we summarise findings from published research into the phospholipid membrane composition of bacterial and cancer cell lines and biological samples from cancer patients. These data not only highlight key differences in the membrane composition of these biological samples, but also the methods used to elucidate and report the results of this analogous research between the microbial and cancer fields.

This review acts as a repository and comparison of cell membrane phospholipid composition data collected from microbial and cancer fields.