Inverse type polymer solar cell based on modification of active layer and transmission layer and preparation method of solar cell

A technology of solar cells and active layers, applied in the field of polymer solar cells, can solve the problems of restricting the commercial application of polymer solar cells, low energy conversion efficiency, low spectral utilization rate, etc., achieving simple and convenient operation, improving transmission balance, Enhance the effect of charge transport

Inactive Publication Date: 2015-11-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low energy conversion efficiency still restricts the commercial application of polymer solar cells.
The efficiency of a single solar cell has reached 10.2%, and the reason for its further improvement is mainly due to the mismatched electron-hole migration, separation, transport and recombination rate, resulting in a very low photocurrent. Therefore, the method of buffer layer modification is more There are many applications, including cathode buffer layer modification and anode buffer layer modification; on the other hand, a common problem in current solar cell research is low spectral utilization; energy, and when evaporating the transport layer, small particles of the transport layer material will inevitably remain in the evaporation chamber, which will have a certain impact on the evaporation of the electrode in the next step

Method used

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  • Inverse type polymer solar cell based on modification of active layer and transmission layer and preparation method of solar cell
  • Inverse type polymer solar cell based on modification of active layer and transmission layer and preparation method of solar cell
  • Inverse type polymer solar cell based on modification of active layer and transmission layer and preparation method of solar cell

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Put a 15mm×20mm ITO conductive glass into a beaker, and ultrasonically clean it with acetone, absolute ethanol, and deionized water for 15 minutes in sequence, and dry the cleaned substrate with a nitrogen gun, and put it in a petri dish for use;

[0033] (2) 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, and the prepared TiO 2 Sol;

[0034] TiO 2 The sol was spin-coated on a clean ITO glass surface at a spin-coating speed of 3000rpm; 2 Put the ITO conductive glass of the sol into a muffle furnace, bake it at 450°C for 2h, then turn ...

Embodiment 2

[0042] (1) Put a 15mm×20mm ITO conductive glass into a beaker, and ultrasonically clean it with acetone, absolute ethanol, and deionized water for 15 minutes in sequence, and dry the cleaned substrate with a nitrogen gun, and put it in a petri dish for use;

[0043] (2) 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, and the prepared TiO 2 Sol;

[0044] TiO 2 The sol was spin-coated on a clean ITO glass surface at a spin-coating speed of 3000rpm; 2 Put the ITO conductive glass of the sol into a muffle furnace, bake it at 450°C for 2h, then turn ...

Embodiment 3

[0052] (1) Put a 15mm×20mm ITO conductive glass into a beaker, and ultrasonically clean it with acetone, absolute ethanol, and deionized water for 15 minutes in sequence, and dry the cleaned substrate with a nitrogen gun, and put it in a petri dish for use;

[0053] (2) 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, and the prepared TiO 2 Sol;

[0054] TiO 2 The sol was spin-coated on a clean ITO glass surface at a spin-coating speed of 3000rpm; 2 Put the ITO conductive glass of the sol into a muffle furnace, bake it at 450°C for 2h, then turn ...

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PUM

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Abstract

The invention relates to an inverse type polymer solar cell based on modification of an active layer and a transmission layer, and belongs to the technical field of polymer solar cells. The polymer solar cell is of a typical inverse structure. UV processing and hydroxylation are carried out on a titanium dioxide electron transmission layer, and polyethylene imine modification is then carried out; an active layer is doped with inorganic quantum dots to further adjust the energy level among acceptors and enhance transmission of carriers; and a hole transmission layer employs water-soluble molybdenum trioxide, and doped with gold nano-particles. Spin coating of aqueous solution saves more energy compared with vapor deposition; surface plasmon resonance caused by doping of the gold nano-particles can reflect light back to an active layer, further to utilize light and help transmission of charges in a transmission layer; and carrier transmission is smoother, and a more balanced electro-hole transfer speed can be achieved.

Description

technical field [0001] The invention belongs to the technical field of polymer solar cells, and in particular relates to an inverse polymer solar cell based on modification of an active layer and a transport layer and a preparation method thereof. Background technique [0002] The research of polymer solar cells can greatly alleviate the energy crisis and improve the environmental pollution problem, has received more and more attention, and has become an attractive research topic in recent years. However, the low energy conversion efficiency still restricts the commercial application of polymer solar cells. The efficiency of a single solar cell has reached 10.2%, and the reason for its further improvement is mainly due to the mismatched electron-hole migration, separation, transport and recombination rate, resulting in a very low photocurrent. Therefore, the method of buffer layer modification is more There are many applications, including cathode buffer layer modification ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K30/151H10K30/81H10K2102/00Y02E10/549
Inventor 郭文滨刘春雨沈亮董玮周敬然温善鹏张歆东
Owner JILIN UNIV
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