Electronic devices made with electron transport and/or Anti-quenching layers

a technology of electron transport and electron transport layer, applied in the direction of organic semiconductor device, discharge tube/lamp details, diaryl/triaryl methane dye, etc., can solve the problem of insufficient use of large band gap exciton blocker, and achieve the effect of minimizing both electron transfer quenching and energy transfer quenching of the photoactive layer

a technology of electron transport and electron transport layer, applied in the direction of organic semiconductor device, discharge tube/lamp details, diaryl/triaryl methane dye, etc., can solve the problem of insufficient use of large band gap exciton blocker, and achieve the effect of minimizing both electron transfer quenching and energy transfer quenching of the photoactive layer

US20070267968A1Inactive Publication Date: 2007-11-22LECLOUX DANIEL DAVID +1
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  • Electronic devices made with electron transport and/or Anti-quenching layers
  • Electronic devices made with electron transport and/or Anti-quenching layers
  • Electronic devices made with electron transport and/or Anti-quenching layers

Examples

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examples

[0086] The following examples illustrate certain features and advantages of the present invention. They are intended to be illustrative of the invention, but not limiting. All percentages are by weight, unless otherwise indicated.

examples 1-17

[0087] These examples illustrate the preparation of some ET / AQ compositions.

example 1

[0088] This example illustrates the preparation of Compound V(b) in FIG. 9.

[0089] A mixture of 3,4-diaminotoluene (28.78 g, 0.236 mol) and benzil (45 g, 0.214 mol) was refluxed in 738 ml chloroform with 2.16 ml trifluoroacetic acid for 3 hours. The mixture was washed 3 times with 10% HCl, brine, and dried over MgSO4, filtered, and then filtered through a silica bed with vacuum. The resultant solution was evaporated to dryness. Recrystallized 69 grams of crude product from 550 ml methanol. Filtered solids were dried in a vacuum oven at 50° C. for 1 hour to yield 55.56 g of dried solid. 78.8% yield

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Abstract

The present invention is directed to a photoactive device comprising an anode, a cathode, and a photoactive layer, which device further comprises an electron transport and / or anti-quenching layer which minimizes both electron transfer quenching and energy transfer quenching of the photoactive layer.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional of U.S. application Ser. No. 10 / 612,482 filed Jul. 2, 2003 which claims priority from U.S. Provisional Application Ser. No. 60 / 394,767, filed Jul. 10, 2002, and U.S. Provisional Application Ser. No. 60 / 458,277, filed Mar. 28, 2003.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to photoactive electronic devices in which there is at least one active layer comprising an electron transport and / or anti-quenching composition. [0004] 2. Description of the Related Art [0005] In organic photoactive electronic devices, such as light-emitting diodes (“OLED”), that make up OLED displays, the organic active layer is sandwiched between two electrical contact layers in an OLED display. In an OLED the organic photoactive layer emits light through the light-transmitting electrical contact layer upon application of a voltage across the electrical contact layers. [0006] It...

Claims

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Application Information

Patent Timeline
22 Nov 2007
Publication
US20070267968A1
IPC
H01J63/02; C07C211/49; C07C211/52; C07C211/54; C07C215/74; C07C217/80; C07C255/58; C07D209/86; C07D213/38; C07D241/38; C07D241/40; C07D241/42; C07D401/04; C07D401/14; C07D403/04; C07D409/04; C07D409/14; C07D471/04; C07D471/14; C07D471/16; C07D475/00; C07D487/04; C07D519/00; C07F7/08; C07F7/21; C07F15/00; C08G61/00; C08G61/12; C08K5/18; C08L65/00; C08L83/08; C09B11/10; C09K11/06; H05B33/14; H10K99/00
CPC
C07C211/49; Y10S428/917; C07C211/54; C07C215/74; C07C217/80; C07C255/58; C07D209/86; C07D213/38
Inventors
LECLOUX, DANIEL DAVID; WANG, YING