• 专利标题:   LED i.e. Zinc oxide-graphene hybrid-type white color LED using graphene quantum dot, has hole transporting layer formed on cathode, light emitting layer formed on hole transporting layer, and anode formed on electron transporting layer.
  • 专利号:   US2016064681-A1, KR2016025337-A
  • 发明人:   LEE H, SHIN Y H, HYUN D, PARK J, KIM K S
  • 专利权人:   UNIV SUNGKYUNKWAN RES BUSINESS FOUND, GRAPHENEALL CO LTD, UNIV SUNGKYUNKWAN RES BUSINESS FOUND
  • 国际专利分类:   H01L051/00, H01L051/50, H01L033/04
  • 专利详细信息:   US2016064681-A1 03 Mar 2016 H01L-051/50 201620 Pages: 21 English
  • 申请详细信息:   US2016064681-A1 US837593 27 Aug 2015
  • 优先权号:   KR112477

▎ 摘  要

NOVELTY - The device has a cathode formed on a substrate. A hole transporting layer is formed on the cathode. A light emitting layer is formed on the hole transporting layer. An electron transporting layer is formed on the light emitting layer, where the light emitting layer includes a blue graphene quantum dot, a green graphene quantum dot, a red graphene quantum dot and a yellow graphene quantum dot. An anode is formed on the electron transporting layer. Sizes of the graphene quantum dots are less than 100 nm. USE - LED i.e. Zinc oxide-graphene hybrid-type white color LED using graphene quantum dot. ADVANTAGE - The LED has low light emitting efficiency when the LED utilizes a quantum dot including low quantum efficiency so as to easily overcome stability problems in a high-temperature deposition equipment when organic material is applied, thus reducing required costs for manufacturing a device. The hole transporting layer has high flexibility when the hole transporting layer includes material formed by chemical bonding of the graphene quantum dot. DETAILED DESCRIPTION - The blue graphene quantum dot, the green graphene quantum dot and the red graphene quantum dot are made of carbon fiber material. An INDEPENDENT CLAIM is also included for a method for manufacturing a light emitting device using graphene quantum dot. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an LED structure.