Materials for optoelectronic devices
AssigneeGeneral Electric Company
InventorsJoseph John Shiang, Paul Michael Smigelski, JR.
Life of this patent
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Abstract
Energy efficient optoelectronic devices include an electroluminescent layer containing a polymer made up of structural units of formula I and II; wherein R1 and R2 are independently C22-44 hydrocarbyl, C22-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, oxaalkylaryl, or a combination thereof; R3 and R4 are independently H, C1-44 hydrocarbyl or C1-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, or R3 and R4, taken together, form a C2-10 monocyclic or bicyclic ring containing up to three S, N, O, P, or Si heteroatoms; and X is S, Se, or a combination thereof.
Claims31
An optoelectronic device having an electroluminescent layer comprising a polymer comprising structural units of formula I and II
- wherein
- R1 and R2 are independently C22-44 hydrocarbyl, C22-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, oxaalkylaryl, or a combination thereof;
- R3 and R4 are independently H, C1-44 hydrocarbyl or C1-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, or R3 and R4, taken together, form a C2-10 monocyclic or bicyclic ring containing up to three S, N, O, P, or Si heteroatoms;
- and
- X is S, Se, or a combination thereof.
A polymer comprising structural units of formula I and II
- wherein
- R1 and R2 are independently C22-44 hydrocarbyl, C22-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, oxaalkylaryl, or a combination thereof;
- R3 and R4 are independently H, C1-44 hydrocarbyl or C1-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, or R3 and R4, taken together, form a C2-10 monocyclic or bicyclic ring containing up to three S, N, O, P, or Si heteroatoms;
- and
- X is S, Se, or a combination thereof.
A compound of formula
- wherein R1a and R2a are independently (OCH2CH2(CH2)m)nOR5
- m is 0 or 1;
- n ranges between about 20 and about 500;
- and
- X is independently at each occurrence halo, triflate, —B(OH)2, —B(OR)2, —BO2R, or a combination thereof;
- and
- R is alkyl or alkylene.
A method for purifying a 9,9-substituted fluorene compound, said method comprising contacting the fluorene compound with a strong oxidizing agent in the presence of a strong acid.
Dependencies are inferred from the claim text.