Patent · US Active

Carbon enabled vertical organic light emitting transistors

US11785791B2 · kind B2 · utility

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29References
8Claims
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Key dates

Filing dateNov 23, 2020
Grant dateOct 10, 2023
Priority date—
Expiry dateNov 23, 2040

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K10/491
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Devices, structures, materials and methods for carbon enabled vertical light emitting transistors (VLETs) and light emitting displays (LEDs) are provided. In particular, architectures for vertical polymer light emitting transistors (VPLETs) for active matrix organic light emitting displays (AMOLEDs) and AMOLEDs incorporating such VPLETs are described. Carbon electrodes (such as from graphene) alone or in combination with conjugated light emitting polymers (LEPs) and dielectric materials are utilized in forming organic light emitting transistors (OLETs). Combinations of thin films of ionic gels, LEDs, carbon electrodes and relevant substrates and gates are utilized to construct LETs, including heterojunction VOLETs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.