supported by the Dutch Technology Foundation STW,which is part of the Netherlands Organisation for Scientific Research(NWO);funded by the Ministry of Economic Affairs;support within the framework of the Czech-German collaborative project,16-09745J(DFT-GACR);supported by the Russian Science Foundation,Grant No.14-12-01067。
Increasing temperature is known to quench the excitonic emission of bulk silicon,which is due to thermally induced dissociation of excitons.Here,we demonstrate that the effect of temperature on the excitonic emission ...