A light-emitting diode (LED) light source have attracted considerable attention in modern lightening devices because of long lifetime, small size, producing different colored light and low energy consumption in comprising  of traditional bulbs. However there is a problem of overheating and decreasing life time of LED chip performance at high temperature. Therefore it is necessary to research and develop new materials with optimal thermal conductivity and stable interface. Graphene sheets are alternative to conventional materials with excellent thermal properties. In this work we study of interaction and thermal properties of copper-graphene sheets attached onto arbitrary LED interface for controlling heat exchange process.

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