High Color-Conversion Efficiency CdSe Quantum Dots Hybrid Light Emitted Diode

Abstract

In this work, we have successfully demonstrated that the color-conversion efficiency in colloidal quantum dots can be greatly enhanced by light-emitting diodes (LEDs) with novel structures of nanorods embedded in microholes. Via an integrated technology of the nano-imprint and photolithography, nanorods structures can be fabricated at specific locations, generating functional nanostructured LEDs for high-efficiency light-emitting performance. With such a structured LED, the color-conversion efficiency of the existing quantum dots can be enhanced up to 12.5 %.