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A double closed-loop control system for driving high brightness LED to keep the temperature and emission intensity of LED stable is presented. In one closed-loop control, a Peltier is used to control LED's temperature and its average power can be dynamically regulated as LED temperature changes. In another, sampling real emission intensity of LED and comparing with expected intensity is repeatedly...
Low-dimensional thermoelectric materials are believed to have higher energy transformation efficiency compared to bulk materials. In this work, the thermal conductivities in normal direction of bismuth telluride thin films have been studied using Non-equilibrium Molecular Dynamics (NEMD) with a two-body potential. We predict the thermal conductivity in films with a thickness range of 6–40nm at 100,...
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