title: Color-conversion efficiency enhancement of quantum dots via selective area nano-rods light-emitting diodes.
abstract: A large enhancement of color-conversion efficiency of colloidal quantum dots in light-emitting diodes (LEDs) with novel structures of nanorods embedded in microholes has been demonstrated. Via the integration of nano-imprint and photolithography technologies, nanorods structures can be fabricated at specific locations, generating functional nanostructured LEDs for high-efficiency performance. With the novel structured LED, the color-conversion efficiency of the existing quantum dots can be enhanced by up to 32.4%. The underlying mechanisms can be attributed to the enhanced light extraction and non-radiative energy transfer, characterized by conducting a series of electroluminescence and time-resolved photoluminescence measurements. This hybrid nanostructured device therefore exhibits a great potential for the application of multi-color lighting sources.
authors.forename: Che-Yu
authors.initials: CY
authors.lastname: Liu
authors.forename: Tzu-Pei
authors.initials: TP
authors.lastname: Chen
authors.forename: Tsung Sheng
authors.initials: TS
authors.lastname: Kao
authors.forename: Jhih-Kai
authors.initials: JK
authors.lastname: Huang
authors.forename: Hao-Chung
authors.initials: HC
authors.lastname: Kuo
authors.forename: Yang-Fang
authors.initials: YF
authors.lastname: Chen
authors.forename: Chun-Yen
authors.initials: CY
authors.lastname: Chang