Uncovering the Role of Electronic Doping in Lead-free Perovskite (CH NH ) CuCl Br and Solar Cells Fabrication.

Lead halide perovskites are attractive pigments to fabricate solar cells in the laboratory, owing to their high power conversion efficiency. However, given the presence of Pb, such materials also have a high level of toxicity and are carcinogenic for humans and aquatic life. Arguably, this hampers their acceptability for immediate commercialization.

A promising 1D Cd-based hybrid perovskite-type for white-light emission with high-color-rendering index.

A one dimensional (1D) perovskite-type (CHNBr)[CdBr] (abbreviated 4-BAPC) was synthesized by slow evaporation at room temperature (RT). 4-BAPC crystalizes in the monoclinic system with the space group 2/. The 1D inorganic chains are formed by corner sharing CdBr octahedra.

Epidemiological profile of burns in children in central and southern Tunisia: A 67-case series.

Introduction: Burns are among the most frequent injuries in children. They are a major cause of morbidity and mortality in low- and middle-income countries. This study aimed to describe the epidemiological aspects of burns in this environment and to propose preventive measures.

[Primary metastatic urethral melanoma: a case study].

Purpose: Primary urethral melanoma is a rare pathology for which treatment strategies are controversial. The aim of this work was to report a case of metastatic primary urethral melanoma, and to discuss recent data available from literature.

Material And Method: Case study was summarized from the patient's medical chart.