Anti-bunching from plasmon induced non-blinking single CdSe/ZnS quantum dot
CdSe/ZnS colloidal quantum dot generally exists blinking phenomenon during luminescence process, that remarkably influences its application as a single photon source. In this work, we used the effect of surface plasmon to effectively suppressed the blinking by locating quantum dot on gold film. The anti-bunching character was also observed with g(2)(0) as low as 0.34 at room temperature. Surface plasmon was shown to enhance the photoluminescence and reduce the lifetime of exciton, which was controlled by excitation power. Our result suggests a potential way to utilize CdSe/ZnS as a high efficient single photon emitter in optics.