Author:
Pate David S.,Onukwughara Chineme Jeanfrances,Spence Griffin C.,Arachchige Indika U.,Özgür Ümit
Abstract
We report on quantum confined Ge1-x-ySiySnx nanocrystals demonstrating both size- and composition-tunable direct visible/NIR emission (1.77 – 2.47 eV) and recombination dynamics. Temperature-dependent time-resolved photoluminescence suggests significant enhancement of oscillator strengths with Si incorporation.