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Functional interlayers of fullerene derivatives and applications in organic solar cells
US10056554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10056554-B2 |
| Application number | US-201515306752-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 6, 2015 |
| Priority date | May 8, 2014 |
| Publication date | Aug 21, 2018 |
| Grant date | Aug 21, 2018 |
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Abstract
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The invention provides novel materials, methods and designs to enable improved power conversion efficiencies of organic photovoltaics (OPVs). In particular, the invention provides novel materials and interlayers for polymer-based solar cells. Novel functional fullerene-based interlayers are disclosed that enable high efficiency devices in conjunction with numerous active layer and electrode materials.
First claim
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The invention claimed is: 1. A fullerene derivative having the structural formula: wherein R each is independently a neutral group selected from primary, secondary, tertiary amino groups, phosphonate ester group, phosphoric acid group, or a zwitterionic group selected from sulfobetaine, carboxybetaine, phosphobetaine and phosphorylcholine groups; and x is an integer from 1 to 12. 2. The fullerene derivative of claim 1 , wherein the fullerene is C 60 . 3. The fullerene derivative of claim 1 , wherein the fullerene is C 70 . 4. The fullerene derivative of claim 1 , wherein all R's are identical. 5. The fullerene derivative of claim 1 , wherein all R's are not identical. 6. The fullerene derivative of claim 1 , wherein each R is a neutral group. 7. The fullerene derivative of claim 1 , wherein each R is a tertiary amino group. 8. The fullerene derivative of claim 1 , wherein each R is a zwitterionic group, wherein the zwitterionic group is selected from the group consisting of sulfobetaine, carboxybetaine, phosphobetaine and phosphorylcholine. 9. The fullerene derivative of claim 1 , wherein x is an integer from 1 to 6.
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Classifications
containing three or more hetero rings · CPC title
After-treatment · CPC title
condensed with carbocyclic rings or carbocyclic ring systems · CPC title
Nano-sized carbon materials · CPC title
containing carbocyclic rings other than six-membered · CPC title
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- What does patent US10056554B2 cover?
- The invention provides novel materials, methods and designs to enable improved power conversion efficiencies of organic photovoltaics (OPVs). In particular, the invention provides novel materials and interlayers for polymer-based solar cells. Novel functional fullerene-based interlayers are disclosed that enable high efficiency devices in conjunction with numerous active layer and electrode mat…
- Who is the assignee on this patent?
- Univ Massachusetts
- What technology area does this patent fall under?
- Primary CPC classification H01L51/0047. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 21 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).