Dyes, dye-sensitized solar cells, and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-11613653-B2
Application number	US-201816634050-A
Country	US
Kind code	B2
Filing date	Jul 26, 2018
Priority date	Jul 26, 2017
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

Provided herein are dyes, dye-sensitized solar cells, and sequential series multijunction dye-sensitized solar cell devices. The dyes include an electron deficient acceptor moiety, a medium electron density ?-bridge moiety, and an electron rich donor moiety comprising a biaryl, a substituted biaryl, or an R1, R2, R3 substituted phenyl where each of R1, R2, and R3 independently comprises H, aryl, multiaryl, alkyl substituted aryl, alkoxy substituted aryl, alkyl substituted multiaryl, alkoxy substituted multiaryl, OR4, N(R5)2, or a combination thereof; each R4 independently comprises H, alkyl, aryl, alkyl substituted aryl, alkoxy substituted aryl, or a combination thereof; and each R5 independently comprises aryl, multiaryl, alkyl substituted aryl, alkoxy substituted aryl, alkyl substituted multiaryl, alkoxy substituted multiaryl, or a combination thereof. The solar cells include a glass substrate, a dye-sensitized active layer, and a redox shuttle. The devices include at least two dye-sensitized solar cells connected in series.

First claim

What is claimed is:

1. A dye, comprising:
an electron deficient acceptor moiety;
a medium electron density π-bridge moiety; and
an electron rich donor moiety comprising

wherein n is between 1 and 30.

2. The dye of claim 1 , wherein the π-bridge moiety comprises:

or derivatives thereof;
wherein each X independently comprises H, F, CN, or CO 2 R; and
wherein each R independently comprises H, alkyl, aryl, alkyl substituted aryl, alkoxy substituted aryl, or a combination thereof.

3. The dye of claim 1 , wherein the acceptor moiety comprises:

or derivatives thereof; and
wherein each R independently comprises H, alkyl, aryl, alkyl substituted aryl, alkoxy substituted aryl, or a combination thereof.

4. The dye of claim 1 , wherein the π-bridge moiety has the structure

5. The dye of claim 1 , wherein the acceptor moiety has the structure

6. The dye of claim 1 , wherein the 7-bridge moiety has the structure

the acceptor moiety has the structure

7. The dye of claim 1 , wherein the 7-bridge moiety and the acceptor moiety has the structure

Assignees

• Univ Mississippi

Inventors

• Delcamp Jared Heath
• Rodrigues Roberta Ramalho
• Peddapuram Adithya
• Cheema Hammad Arshad

Classifications

• H01G9/2072

  comprising two or more photoelectrodes sensible to different parts of the solar spectrum, e.g. tandem cells · CPC title

• H10K85/636

  comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom · CPC title

• H10K85/656

  comprising two or more different heteroatoms per ring (H10K85/652 takes precedence) · CPC title

• C09B57/00 Primary

  Other synthetic dyes of known constitution · CPC title

• C09B11/04 Primary

  derived from triarylmethanes {, i.e. central C-atom is substituted by amino, cyano, alkyl} · CPC title