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A Correlation between Localized States and Meyer-Neldel Relation in Crystallization Process of Amorphous Sete Films

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Abstract Electrical conductance is measured in amorphous SeTe films to investigate the crystallization mechanism in the system. The crystallization is found to occur at the sample-substrate interface. The Arrhenian temperature dependence of crystallization velocity estimates the activation energy. The Meyer-Neldel relation (MNR) has been observed in amorphous SeTe films through a correlation between pre-exponential of growth velocity and activation energy. The presence of localized states in amorphous chalcogenides and its relation to viscosity for controlling crystallization mechanism in films is discussed. PACS:  71.23.-k; 72.15.Cz; 73.61.Jc; 77.84.Bw Go to Introduction Crystallization in amorphous Se-Te binary and ternary alloys has been studied using various techniques such as Differential Scanning Calorimetry (DSC) [1], Differential Thermal Analysis (DTA) [2-3], Electron Microscopy [4-5] etc. The electrical conductivity has been previously used to determine t...

Nano Materials for Early Detection of Cancer-Juniper publishers

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Material science - Juniper publishers Abstract Cancer is one of the leading causes of morbidity and mortality worldwide, more than 600 000 people die annually in the US along. In reality, no matter what kind of cancer, the survival rate is much higher and the expense is much lower for people diagnosed with early stage cancer than with later stage cancer. However, current clinical techniques are difficult to detect cancer in the early stage, due to their small size and the fact that they are hidden very deep. Nano materials provide incredible properties, such as high relative surface area, quantum confinement, etc., which have been largely used for early detection. This mini review gives a simple overview of current progress in the field of nano materials for early detection of cancer. Keywords: Nano materials; Early detection; Cancer; Liquid biopsy; CTCs; Exosome; CtDNA; MiRNA Go to Introduction According to the American Cancer Society, 600,920 cancer deaths are pr...