Molecular building block methods for producing high-efficiency organic solar cells and devices and systems produced therefrom
AssigneeHamad Bin Khalifa University
InventorsHicham Hamoudi, Golibjon Berdiyorov
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Abstract
Disclosed is a fabrication method for constructing low-cost, morphologically stable, highly ordered, and crystalized layered organic solar cells. The method implements self-assembled molecular monolayers as building blocks (a bottom up strategy) to fabricate a device. This approach enables the creation of a layered material with desired morphology in a controlled way. In such geometry, optoelectronic and transport properties can be controlled by metal atom inclusions into the molecular monolayers, which presents a range of options in creating photo-sensitive molecular building blocks to cover a wide range of the solar spectra from IR to visible to UV.
Claims18
An organic active material for a solar cell, the organic active material comprising:
- a metallic substrate which enables self-assembly of organic molecules;
- an organic molecular block on the metallic substrate;
- wherein the organic molecular block includes a metal-molecule multilayered heterostructure formed by metal-ion mediated self-assembly of organic molecules;
- wherein the metal-molecule multilayered heterostructure includes a plurality of self assembly monolayers connected by metal ions;
- wherein the organic molecular block is formed by immersing the metallic substrate in a first solution to create a molecular self-assembly and then immersing in a second solution to provide metal ions on the molecular self-assembly, where the metal ions serve as mediators for formation of a subsequent molecular self-assembly;
- and
- wherein the metallic substrate immersed in the first solution and then in the second solution is repeated to form the organic molecular block.
A solar cell comprising:
- an organic active material including a metallic substrate which enables self-assembly of organic molecules and an organic molecular block on the metallic substrate;
- wherein the organic molecular block includes a metal-molecule multilayered heterostructure formed by metal-ion mediated self-assembly of organic molecules;
- wherein the metal-molecule multilayered heterostructure includes a plurality of self assembly monolayers connected by metal ions;
- wherein the organic molecular block is formed by immersing the metallic substrate in a first solution to create a molecular self-assembly and then immersing in a second solution to provide metal ions on the molecular self-assembly, where the metal ions serve as mediators for formation of a subsequent molecular self-assembly;
- and
- wherein the metallic substrate immersed in the first solution and then in the second solution is repeated to form the organic molecular block.
Dependencies are inferred from the claim text.