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Application of SrTiO3 of perovskite oxide in OSC

A perovskite oxide, solar cell technology, applied in organic semiconductor devices, circuits, photovoltaic power generation and other directions, can solve the problems of easily corroded active layer, rough interface, many defects, etc., to avoid recombination, enhance stability, low cost effect

Active Publication Date: 2014-07-16
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In general, the anode transport layer 2 in the normal structure is a mixed solution of poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate (PEDOT:PSS), PEDOT:PSS is a transparent very Good anode modification layer, but its acidity is very strong, it is easy to corrode the active layer in the organic solar cell, so that the interface in the PEDOT:PSS / active layer becomes very rough, with more defects, and the charges transported to this interface fall into the If the defect cannot come out, the charge recombination reduces the current in the cell and affects the efficiency of the organic solar cell

Method used

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  • Application of SrTiO3 of perovskite oxide in OSC
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  • Application of SrTiO3 of perovskite oxide in OSC

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Embodiment 1

[0033] A perovskite oxide SrTiO 3 The specific steps of application in organic solar cells are:

[0034] 1) Using strontium acetate and tetrabutyl titanate as raw materials, dissolve strontium acetate and tetrabutyl titanate in acetic acid and ethanol respectively and stir for 12 hours, then mix the two solutions so that the ratio of Sr and Ti atoms is 1 : 1. The mixed solution becomes SrTiO after continuing to stir for 12h 3 Precursor solution, the SrTiO 3 The precursor solution is diluted, and the diluted SrTiO 3 The precursor solution is spin-coated on the ITO glass substrate 10, and annealed at 150° C. for 3 hours in a nitrogen atmosphere through a tube furnace;

[0035] 2) the annealed ITO glass substrate / SrTiO obtained in step 1) 3 Transfer to the glove box and spin coat the active layer P3HT:PC 61 BM solution, rotating speed 500rpm, time 18s. Good P3HT:PC 61 The BM film is placed in a glove box for solvent annealing. After the solvent is evaporated to dryness, t...

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Abstract

The invention relates to an OSC, in particular to the application of SrTiO3 of perovskite oxide in an OSC. According to the application, the SrTiO3 of perovskite oxide serves as a cathode modifying layer of the OSC. The OSC prepared by using the SrTiO3 of perovskite oxide as the cathode modifying layer shows the stable photovoltaic property curve. An SrTiO3 nano-particle of perovskite oxide is prepared according to a solution method, annealing is carried out at different temperatures, then the SrTiO3 nano-particle of perovskite oxide is coated with an active layer of the OSC in a spiral mode, the active layer is plated with electrodes, and then the complete OSC is obtained. An acid anode modifying layer PEDOT: PSS in a normal structure is avoided, namely, the recombination action on a current carrier from the interface defect of the PEDOT: PSS / the active layer is avoided, and the stability of the OSC is potentially enhanced.

Description

technical field [0001] The invention relates to an organic solar cell, in particular to a perovskite oxide SrTiO 3 Applications in organic solar cells. Background technique [0002] Solar energy is one of the internationally recognized clean energy sources, and the device that converts solar energy into electrical energy is a solar cell. At present, solar energy mainly includes silicon-based solar cells, thin-film solar cells and new technology solar cells. Organic Solar Cells (OSCs) is a promising new technology solar cell, its main components are high molecular polymers, with light weight, cheap, can be prepared on flexible substrates, rich in organic materials, The excellent properties such as simple manufacturing process are the hotspots in the field of current research. [0003] In recent years, organic solar cells have been favored by researchers from various countries and have developed rapidly. The existing structure of organic solar cells is figure 1 As shown, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/44H01L51/48H01L51/42
CPCH10K30/10H10K30/81H10K2102/00Y02E10/549
Inventor 廖霞霞齐哲王吉政王惠琼郑金成
Owner XIAMEN UNIV
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