Photoluminescence thermometry with alkyl-terminated silicon nanoparticles dispersed in low-polar liquids

Abstract

Steady-state and time-resolved photoluminescence of silicon nanoparticles dispersed in low-polar liquids at above room temperature is studied. The roles of low-polar liquids as well as mechanisms responsible for their temperature-dependent photoluminescence are discussed. The thermal sensitivity of the photoluminescence is estimated and application of the nanoparticles as nanothermometers is proposed. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.