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Inverted polymer solar cell of Ag nano particle compounded cavity transmission layer and fabrication method

A technology of hole transport layer and silver nanoparticles, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low efficiency of solar cells, achieve the effects of increasing optical distance, enhancing light absorption capacity, and improving interface contact performance

Active Publication Date: 2013-03-20
JILIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But polymer solar cells have long had low efficiencies, due to the fact that when light hits organic materials, instead of free charge carriers, excitons (electron-hole pairs) typically form in organic materials.

Method used

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  • Inverted polymer solar cell of Ag nano particle compounded cavity transmission layer and fabrication method
  • Inverted polymer solar cell of Ag nano particle compounded cavity transmission layer and fabrication method
  • Inverted polymer solar cell of Ag nano particle compounded cavity transmission layer and fabrication method

Examples

Experimental program
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Effect test

Embodiment 1

[0024] 1. The ITO glass was ultrasonically cleaned with acetone, ethanol, and deionized water for 30 minutes, and then dried with nitrogen;

[0025] 2. At room temperature, drop the mixed solution of 20ml ethanol, 5ml deionized water, and 1ml hydrochloric acid with a concentration of 0.2mol / l into the solution containing 5ml tetrabutyl titanate, 40ml ethanol, and 3ml acetylacetone , and accompanied by vigorous stirring for 1 hour, left to age for 48 hours, and then obtained TiO 2 Sol.

[0026] 3. Place the configured TiO 2 The sol was spin-coated on ITO glass at a speed of 1000rpm and spin-coated for 20s, and sintered in a muffle furnace at 450°C for 1.5 hours. After sintering, nc-TiO was formed on the ITO glass. 2 layer.

[0027] 4. Spin-coat the chlorobenzene solution of P3HT and PCBM with a mass ratio of 1:0.8 and a concentration of 10 mg / ml on the ITO / nc-TiO 2 , the thickness of the active layer is 100nm; then put it on the hot stage in the glove box, anneal the active...

Embodiment 2

[0030] 1. The ITO glass was ultrasonically cleaned with acetone, ethanol, and deionized water for 30 minutes, and then dried with nitrogen;

[0031] 2. At room temperature, drop the mixed solution of 30ml ethanol, 10ml deionized water, and 2ml hydrochloric acid with a concentration of 0.25mol / l into the solution containing 10ml tetrabutyl titanate, 60ml ethanol, and 5ml acetylacetone , and accompanied by vigorous stirring for 3 hours, left to age for 48h, and then obtained TiO 2 Sol.

[0032] 3. Place the configured TiO 2 The sol was spin-coated on ITO glass at a speed of 3000rpm and spin-coated for 20s, and sintered in a muffle furnace at 450°C for 2 hours. After sintering, nc-TiO was formed on the ITO glass. 2 layer.

[0033] 4. Spin-coat the chlorobenzene solution of P3HT and PCBM with a mass ratio of 1:0.9 and a concentration of 12 mg / ml on the ITO / nc-TiO 2 , the thickness of the active layer is 70nm; then put it on the hot stage in the glove box, anneal the active lay...

Embodiment 3

[0036] 1. The ITO glass was ultrasonically cleaned with acetone, ethanol, and deionized water for 30 minutes, and then dried with nitrogen;

[0037] 2. At room temperature, drop the mixed solution of 40ml ethanol, 15ml deionized water, and 3ml hydrochloric acid with a concentration of 0.3mol / l into the solution containing 20ml tetrabutyl titanate, 80ml ethanol, and 10ml acetylacetone , and accompanied by vigorous stirring for 5 hours, left to age for 48h, and then obtained TiO 2 Sol.

[0038] 3. Place the configured TiO 2 The sol was spin-coated on ITO glass at a speed of 5000rpm and spin-coated for 20s, and sintered in a muffle furnace at 450°C for 3 hours. After sintering, nc-TiO was formed on the ITO glass. 2 layer.

[0039] 4. Spin-coat the chlorobenzene solution of P3HT and PCBM with a mass ratio of 1:1 and a concentration of 15 mg / ml on the ITO / nc-TiO 2 , the thickness of the active layer is 50nm; then put it on the hot stage in the glove box, anneal the active layer...

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Abstract

The invention belongs to the technical field of organic photoelectric devices, and particularly relates to an inverted polymer solar cell of an Ag nano particle compounded cavity transmission layer and a fabrication method of the inverted polymer solar cell. The inverted polymer solar cell is characterized in that ITO (indium tin oxide) conducting glass serves as a cathode (1); N type TiO2 serves as a cathode buffer layer (2); a polymer serves as an active layer (3); MoO3 / Ag nano particle / MoO3 serves as a anode buffer layer (4); and Ag serves as a anode (5). The active layer (3) is mixed by a donor material namely P3HT (Poly [3-hexylthiophene-2, 5-diyl]) with an accepter material namely PCBM ([6, 6]-phenyl-C61-butyric acid methyl ester) according to a mass ratio of 1:0.8-1; and the thickness of each Ag nano particle is 1-5nm. The utilization ratio of sunlight by the active layer is increased through localized surface plasma action and backscattering enhancing action of the Ag nano particles; in addition, the interfacial contact property between the active layer and an electrode is improved; the anode-toward transmittability of current carriers is improved; the short circuit current density of the inverted polymer solar cell is increased; and the energy transformation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of organic photoelectric devices, and in particular relates to an inverse structure polymer organic solar cell with a silver nanoparticle composite hole transport layer and a preparation method thereof. Background technique [0002] Solar energy is an ideal new energy source, clean, clean, and pollution-free. Its reserves are huge, inexhaustible, and full of attractive prospects. Converting solar energy into electrical energy is one of the important ways to solve environmental pollution and energy crisis. Polymer solar cells use organic semiconductor materials as photoelectric conversion materials to directly or indirectly convert solar energy into electrical energy. Polymer solar cells have the following advantages: low cost, simple synthesis process, and mass industrial production. In recent years, it has been widely concerned by domestic and foreign scientific researchers and businessmen, and has become ...

Claims

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Application Information

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IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCY02E10/549Y02P70/50
Inventor 刘彩霞沈亮徐鹏阮圣平郭文滨孟凡旭贾旭张晶晶陆斌武
Owner JILIN UNIV
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