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Author:

Fu, Yafei (Fu, Yafei.) | Sun, Jie (Sun, Jie.) | Du, Zaifa (Du, Zaifa.) | Guo, Weiling (Guo, Weiling.) | Yan, Chunli (Yan, Chunli.) | Xiong, Fangzhu (Xiong, Fangzhu.) | Wang, Le (Wang, Le.) | Dong, Yibo (Dong, Yibo.) | Xu, Chen (Xu, Chen.) (Scholars:徐晨) | Deng, Jun (Deng, Jun.) | Guo, Tailiang (Guo, Tailiang.) | Yan, Qun (Yan, Qun.)

Indexed by:

EI Scopus SCIE PubMed

Abstract:

Micro-light-emitting diodes (micro-LEDs) are the key to next-generation display technology. However, since the driving circuits are typically composed of Si devices, numerous micro-LED pixels must be transferred from their GaN substrate to bond with the Si field-effect transistors (FETs). This process is called massive transfer, which is arguably the largest obstacle preventing the commercialization of micro-LEDs. We combined GaN devices with emerging graphene transistors and for the first-time designed, fabricated, and measured a monolithic integrated device composed of a GaN micro-LED and a graphene FET connected in series. The p-electrode of the micro-LED was connected to the source of the driving transistor. The FET was used to tune the work current in the micro-LED. Meanwhile, the transparent electrode of the micro-LED was also made of graphene. The operation of the device was demonstrated in room temperature conditions. This research opens the gateway to a new field where other two-dimensional (2D) materials can be used as FET channel materials to further improve transfer properties. The 2D materials can in principle be grown directly onto GaN, which is reproducible and scalable. Also, considering the outstanding properties and versatility of 2D materials, it is possible to envision fully transparent micro-LED displays with transfer-free active matrices (AM), alongside an efficient thermal management solution.

Keyword:

GaN micro-light-emitting diodes graphene monolithic integration field effect transistors two-dimensional materials

Author Community:

  • [ 1 ] [Fu, Yafei]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Du, Zaifa]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Guo, Weiling]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Xiong, Fangzhu]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Le]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Dong, Yibo]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Xu, Chen]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 8 ] [Deng, Jun]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China
  • [ 9 ] [Sun, Jie]Fuzhou Univ, Coll Phys & Informat Engn, Natl & Local United Engn Lab Flat Panel Display T, Fuzhou 350116, Fujian, Peoples R China
  • [ 10 ] [Guo, Tailiang]Fuzhou Univ, Coll Phys & Informat Engn, Natl & Local United Engn Lab Flat Panel Display T, Fuzhou 350116, Fujian, Peoples R China
  • [ 11 ] [Yan, Qun]Fuzhou Univ, Coll Phys & Informat Engn, Natl & Local United Engn Lab Flat Panel Display T, Fuzhou 350116, Fujian, Peoples R China
  • [ 12 ] [Yan, Chunli]Lib Fuzhou Univ, Dept Informat & Automat, Fuzhou 350116, Fujian, Peoples R China

Reprint Author's Address:

  • 孙捷

    [Guo, Weiling]Beijing Univ Technol, Coll Microelect, Key Lab Optoelect Technol, Beijing 100124, Peoples R China;;[Sun, Jie]Fuzhou Univ, Coll Phys & Informat Engn, Natl & Local United Engn Lab Flat Panel Display T, Fuzhou 350116, Fujian, Peoples R China

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Source :

MATERIALS

ISSN: 1996-1944

Year: 2019

Issue: 3

Volume: 12

3 . 4 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:211

Cited Count:

WoS CC Cited Count: 16

SCOPUS Cited Count: 20

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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