Control of growth and the processes of energy transfer from CdSe quantum dots for Nd ions in a vitreous system: Thermal annealing time

摘要

The authors report clear evidence of radiative and nonradiative energy transfer from CdSe quantum dots to Nd~(3+) ions in a glass system synthesized by melting method. An efficient control of energy transfer can be obtained by controlling the mean radius of the CdSe quantum dots. Increase of about 100% of the near infrared Nd~(3+) emission (~4F_(3/2) → ~4I_(9/2)) was observed as a function of thermal annealing time.