THE FABRICATION AND ANALYSIS OF QUANTUM-DOT THIN FILM LIGHT EMITTING DIODES FOR USE IN DISPLAYS TECHNOLOGIES

Open Access
Author:
Pickering, Shawn Lewis
Graduate Program:
Engineering Science and Mechanics
Degree:
Doctor of Philosophy
Document Type:
Dissertation
Date of Defense:
December 17, 2010
Committee Members:
  • Jian Xu, Dissertation Advisor
  • Jian Xu, Committee Chair
  • Mark William Horn, Committee Member
  • Sulin Zhang, Committee Member
  • Jerzy Ruzyllo, Committee Member
Keywords:
  • Quantum Dot
  • QD
  • Mist
  • Display
  • QD-LED
Abstract:
The quantum dot has many applications, one of which is the light emitting diode. Quantum dot light emitting diodes were fabricated for their use in display technologies. The quantum dot light emitting diodes had to be optimized to achieve maximum brightness, as well as have the ability to pattern the devices for the use of multiple color quantum dot light emitting diodes on the same substrate. After the patterning and optimization of the quantum dot light emitting diode an addressing system is needed to create a display. In this study mist deposition patterning is used to create multiple color quantum dot light emitting diodes on a single substrate. The structure is then packaged using techniques outlined in this article to prevent oxygen and moisture damage. The brightness and spectrum of each color was then tested, and showed promising results. The multiple devices are then powered via passive matrix addressing device which utilizes a National Instruments FET switching matrix to create an array similar to a display. The results of this testing show it is possible to create a multi-colored quantum dot array using mist deposition and passive addressing.