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Multifunctional quaternary semiconductor Cu2NiSnS4 (CNTS) thin films have been successfully deposited on ITO glass substrates using a facile one-step electro-deposition method. The CNTS films with perfect stoichiometric ratio present a pure stannite phase after post-annealing at 550°C in H2S/N2 mixed atmosphere. The band gap of 1.61eV means great potential in low-cost thin film solar cells. The relationship...
In order to investigate forming mechanism of the metastable “dendrite core” in undercooled Fe–7.5 at.%Ni alloy melt, alloy samples subjected to undercoolings above the critical value for metastable phase formation were quenched and heat-treated. It was evidenced that solid-state transformation, i.e. from metastable δ phase to stable γ phase, cannot be completed during solidification, thus the remained...
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