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Devices, structures, materials and methods for vertical light emitting transistors and light emitting displays

專(zhuān)利號(hào)
US11177465B2
公開(kāi)日期
2021-11-16
申請(qǐng)人
Atom H2O, LLC(US CA Escondido)
發(fā)明人
Huaping Li
IPC分類(lèi)
H01L33/00; H01L51/52; H01L51/56; H01L51/05; H01L27/15; H01L27/32; H01L33/06; H01L33/24; H01L33/28; H01L33/30; H01L33/32; H01L33/34; H01L33/40; H01L33/52; H01L51/00; H01L33/08
技術(shù)領(lǐng)域
nw,ag,vplets,electrode,conductive,electrodes,porous,emitting,dielectric,leps
地域: CA CA Escondido

摘要

Devices, structures, materials and methods for 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. Porous conductive transparent electrodes (such as from nanowires (NW)) 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, porous conductive electrodes and relevant substrates and gates are utilized to construct LETs, including singly and doubly gated VPLETs. In addition, printing processes are utilized to deposit layers of one or more of porous conductive electrodes, LEDs, and dielectric materials on various substrates to construct LETs, including singly and doubly gated VPLETs.

說(shuō)明書(shū)

FIG. 9a provides a schematic diagram of a Ag NW enabled vertical polymer light emitting transistor with an ITO electrode on silicon wafer in accordance with embodiments of the invention;

FIG. 9b provides an SEM of a Ag NW network on a Si wafer (left) and an image of the printed MEH-PPV polymer (right) of the vertical polymer light emitting transistor of FIG. 9a in accordance with embodiments of the invention;

FIG. 10a provides a schematic diagram of a Ag NW enabled vertical polymer light emitting transistor with a Ag NW/PET electrode on silicon wafer in accordance with embodiments of the invention;

FIG. 10b provides an SEM of a Ag NW/PET electrode of FIG. 10a in accordance with embodiments of the invention;

FIG. 11 provides a schematic diagram of a singly-gated Ag NW enabled vertical polymer light emitting transistor with flexible electrodes, and a process diagram for its manufacture in accordance with embodiments of the invention;

FIG. 12 provides a schematic diagram of a doubly-gated Ag NW enabled vertical polymer light emitting transistor with flexible electrodes in accordance with embodiments of the invention; and

FIG. 13 provides a schematic diagram of a VLET display on ITO in accordance with embodiments of the invention.

DETAILED DESCRIPTION OF THE INVENTION

權(quán)利要求

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