WHITE NANOLED WITHOUT REQUIRING COLOR CONVERSION
A nano-LED containing an array of nano-pillars of different diameters that are distributed over an emission area of an LED chip is capable of emitting broadband and white or nearly white light. Since each pillar emits light at a different wavelength according to its diameter and strain state, the overall emission spectral characteristics of the device is a combination of individual spectrum, giving rise to broadband emission. The spectral shape can be tailored for different shades of white emission, by controlling the distribution of the different diameter nano-pillars. The nano-pillars are patterned by nanosphere lithography.
Patent Number: US20130313517A1
Application Number: US13902073A
Inventor: Choi, Hoi Wai
Priority Date: 24 May 2012
Priority Number: US20130313517A1
Application Date: 24 May 2013
Publication Date: 28 Nov 2013
IPC Current: H01L003308
US Class: 257013
Assignee Applicant: The University of Hong Kong
Title: WHITE NANOLED WITHOUT REQUIRING COLOR CONVERSION
Usefulness: WHITE NANOLED WITHOUT REQUIRING COLOR CONVERSION
Novelty: Semiconductor LED for use as nano-LED, has light-emitting region which comprises array of non-uniformly-sized nano-pillars which are formed using top-down approach, and are patterned by nanosphere lithography using colloidal solution
电子
半导体
美国
