Pure and doped magnesium oxide (MgO) thin films were prepared with different volumetric ratios (0, 2, 4, 6, 8%) of zinc sulfide (ZnS) on glass substrates at (350 °C) by chemical spray pyrolysis technique. The surface topography, absorption spectrum, coefficient Urbach energy the studied. atomic force microscopy (AFM) results revealed that topography changes as percentage doping increases. absor...

A Jewish-Iranian family suffered from lipoid proteinosis. The 8 affected siblings were from consanguineous matings and presented a wide range of phenotypic expressions. Minimal manifestations in 2 heterozygote carriers and the possibility of autosomal recessive inheritance are discussed.

In earlier work, we showed that exponential (Urbach) band-edge states were localized on connected subnetworks of short bonds for the valence tail and long bonds for the conduction tail for high-quality continuous random network models of amorphous silicon. Here, we study size effects by computing the electronic density of states for a 105-atom model of α-Si proposed by G. T. Barkema and N. Mous...

The aim of this study has been to assess the clinical presentation and biochemical profile of lipoid proteinosis within a defined pedigree. Glycoprotein analysis was compared to normal values in an attempt to define a biochemical phenotype. Six affected family members were identified with variable degrees of disease expression. The most likely mode of inheritance is autosomal recessive due to c...

OBJECTIVE To describe the unique case of a patient with panic attacks and bilateral selective amygdala lesions due to Urbach-Wiethe disease. DESIGN Case report. SETTING Epilepsy Monitoring Unit, Medical University of Vienna. Patient A 38-year-old man with Urbach-Wiethe disease developed spontaneous panic attacks and depressive mood, which ceased after antidepressive treatment. INTERVENTIO...

The photovoltage Voc of high-performance solar cells such as GaAs and metal halide perovskites is affected by the exponential Urbach tail in absorption spectrum, with an energy parameter EU. It has been observed that increasing decreases maximum can be achieved. On basis detailed balance reciprocity emission, we present a calculation shows voltage loss due to obeys universal relation ΔVocrad = ...

This article discusses the spectral dependences of absorption coefficient thin arsenic sulphide films obtained by spin-coating, identified using a single-beam spectrophotometer in wavelength range 400–1000 nm. The effect doping molybdenum on optical band gap is studied. While for pure glass decreases with higher sulphur concentration, opposite trend observed doped molybdenum. Molybdenum also le...