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Organic polymer solar cell containing graphene

A solar cell and polymer technology, applied in organic semiconductor devices, circuits, photovoltaic power generation, etc., can solve the problems affecting the final efficiency of solar cells, hole quenching, etc., to improve hole mobility, excellent compatibility, Enhance the effect of transmission

Inactive Publication Date: 2018-10-16
林荣铨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lower hole mobility can easily lead to the quenching of holes during transport in the donor, thus affecting the final efficiency of solar cells

Method used

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  • Organic polymer solar cell containing graphene
  • Organic polymer solar cell containing graphene
  • Organic polymer solar cell containing graphene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A graphene-containing organic polymer solar cell, the structure of which is attached to the description figure 1 shown. Among them, the anode 1 is made of indium tin oxide, and the active layer 3 is a blend structure of a conjugated polymer with thiophene and its derivatives as the main chain and PCBM, and the blend ratio is 1:1; the thickness of the active layer 3 is 40nm, and the graphene The thickness of layer 2 is 10nm, and the cathode 4 is made of gold. In Comparative Example 1, the structure of the organic solar cell is exactly the same as that of Example 1, except that no graphene layer 2 is added.

[0039] The resulting hole mobility and the final photoelectric conversion efficiency of the solar cell are as follows:

[0040]

Embodiment 2

[0042] A graphene-containing organic polymer solar cell, the structure of which is attached to the description figure 1 shown. Among them, the anode 1 is made of indium tin oxide, and the active layer 3 is a blend structure of a conjugated polymer with thiophene and its derivatives as the main chain and PCBM, and the blend ratio is 1:10; the thickness of the active layer 3 is 40nm, graphene The thickness of layer 2 is 20nm, and the cathode 4 is made of aluminum. In Comparative Example 2, an organic solar cell structure identical to that of Example 2 is provided, except that no graphene layer 2 is added.

[0043] The resulting hole mobility and the final photoelectric conversion efficiency of the solar cell are as follows:

[0044]

Embodiment 3

[0046] A graphene-containing organic polymer solar cell, the structure of which is attached to the description figure 1 shown. Among them, the anode 1 is made of indium tin oxide, and the active layer 3 is a blend structure of conjugated polymer and PCBM with thiophene and its derivatives as the main chain, and the blend ratio is 1:0.1; the thickness of the active layer 3 is 100nm, graphene The thickness of layer 2 is 100 nm, and the cathode 4 is made of aluminum. In Comparative Example 3, an organic solar cell structure identical to that of Example 3 is provided, except that no graphene layer 2 is added.

[0047] The resulting hole mobility and the final photoelectric conversion efficiency of the solar cell are as follows:

[0048]

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PUM

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Abstract

The invention discloses an organic polymer solar cell containing graphene. The organic polymer solar cell containing the graphene comprises an anode(1), an active layer (3) and a cathode (4) which areoverlaid in sequence, and the solar cell further comprises a graphene layer (2), wherein the graphene layer (2) is located between the active layer (3) and the anode(1) or located between the activelayer (3) and the cathode (4). The active layer (3) is of a hybrid structure of a conjugated polymer with thiophene and derivatives thereof as main chains and [6,6]-phenyl-C61-butyric acid methyl ester. After the graphene layer (2) is added to serve as a hole transporting layer, the hole mobility and the photoelectric conversion efficiency of the organic polymer solar cell are greatly improved. The technical scheme is relatively suitable for the organic polymer solar cell with gold or aluminum as the cathode.

Description

technical field [0001] The invention belongs to the technical field of photoelectric materials, and more specifically relates to a graphene-containing organic polymer solar cell. Background technique [0002] Organic polymer solar cells have always been a research hotspot in the field of photovoltaics because of their low cost, simple process, abundant raw material sources, and environmental protection. Therefore, it has attracted extensive attention and research from researchers at home and abroad. [0003] At present, the active layer materials of organic polymer solar cells are mainly bulk heterojunction structures, and the active layer materials are uniformly mixed and bicontinuous interpenetrating networks formed by donor and acceptor materials. Generally speaking, the donor material of the active layer is a conjugated polymer containing aromatic fused rings, and the acceptor material is [6,6]-phenyl-C61-isomethyl butyric acid derivative (PCBM). Compared with inorgani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/42B82Y30/00
CPCB82Y30/00H10K85/151H10K30/35H10K2102/00Y02E10/549
Inventor 林荣铨
Owner 林荣铨