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Three-terminal parallel polymer solar cell based on metal nanoparticle doping and preparation method of solar cell

A metal nanoparticle and solar cell technology, applied in the field of polymer solar cells, can solve problems such as reducing light utilization efficiency, and achieve the effects of enhancing light absorption capacity, increasing the generation of photoexcitons, and uniform film formation

Inactive Publication Date: 2013-07-31
JILIN UNIV
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  • Application Information

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Problems solved by technology

However, an active layer can only absorb sunlight with a fixed wavelength, which will greatly reduce the light utilization efficiency.

Method used

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  • Three-terminal parallel polymer solar cell based on metal nanoparticle doping and preparation method of solar cell

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Embodiment 1

[0026] 1) Cut 15mm×20mm ITO conductive glass, put it into a beaker, and ultrasonically clean it with acetone, absolute ethanol, and deionized water for 20 minutes, dry it with nitrogen after cleaning, and put it into a petri dish;

[0027] 2) Put 10ml of Ti(OC 4 h 9 ) 4 Add dropwise to 90ml of absolute ethanol, then add dropwise 10ml of glacial acetic acid, and magnetically stir for 40min to obtain a uniform and transparent light yellow solution; then add 10ml of acetylacetone, stir for 30min, then add 10ml of deionized water at 3ml / min Slowly added dropwise to the above solution at a rate of 1 hour, and continued to stir for 1 hour to obtain a uniform and transparent light yellow sol, which was left to age for 7 hours;

[0028] 3) The prepared TiO 2 Preparation of TiO by Sol Spin Coating on the Surface of ITO Conductive Glass 2 film, spin-coated at 4000rpm; then the TiO 2 Thin-film ITO conductive glass is placed in a muffle furnace, baked at 450°C for 2 hours, and then t...

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Abstract

The invention discloses a three-terminal parallel polymer solar cell based on metal nanoparticle doping and a preparation method of the solar cell, and belongs to the technical field of polymer solar cells. The solar cell sequentially consists of ITO (Indium Tin Oxide) conductive glass serving as a substrate and a cathode, a TiO2 electronic transmission layer, a PSBTBT:PC70BM:NPs active layer, an MoO3 hole transmission layer, an Ag anode, a WO3 hole transmission layer, a P3HT:PC70BM:NPs active layer, an LiF electronic transmission layer and an Al cathode, wherein a mass ratio of the P3HT:PC70BM:NPs active layer is 1:1:(0.02-0.05), and NPs represents Au or Ag nanoparticles. According to the solar cell and the preparation method, two subcells form a parallel structure, light absorbing ranges of active layers of the subcells are complementary, metal nanoparticles are doped in the active layer of each subcell, and a utilization ratio of sunlight by the solar cell is increased by utilizing a plasma enhancement effect nearby the metal nanoparticles, so that the performance of the solar cell is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer solar cells, in particular to a polymer solar cell with a three-terminal parallel structure doped with metal nanoparticles (NPs) and a preparation method thereof. Background technique [0002] Polymer solar cells have become an attractive research topic in recent years due to their advantages such as wide source of materials, low cost, flexibility, and large-area fabrication. The structure of a traditional inverse polymer solar cell consists of a cathode, an electron transport layer, an active layer, a hole transport layer, and an anode. But an active layer can only absorb sunlight with a fixed wavelength, which will greatly reduce the light utilization efficiency. Current studies have found that after the active layer is doped with metal nanoparticles, the localized surface plasmon enhancement effect of the nanoparticles enhances the light absorption ability of the active layer and increases the...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCY02E10/549
Inventor 郭文滨武健阮圣平沈亮刘彩霞董玮张歆东周敬然
Owner JILIN UNIV
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