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Organic-inorganic hybrid solar cell and preparation method thereof

A solar cell and organic technology, applied in the field of solar cells, can solve the problems of ineffective separation of the two-phase interface and poor contact between the two-phase interface, and achieve the effects of improving interface contact performance, improving photoelectric performance, and prolonging fluorescence life

Inactive Publication Date: 2015-05-13
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hybrid solar cells often have poor contact between the two-phase interface due to the small contact area of ​​organic-inorganic materials and the differences in the properties of organic and inorganic materials. Exciton transport to the two-phase interface cannot be effectively separated, resulting in the inability of electrons to be smoothly transferred from the organic polymer. Recombination with holes for inorganic semiconductors

Method used

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  • Organic-inorganic hybrid solar cell and preparation method thereof
  • Organic-inorganic hybrid solar cell and preparation method thereof
  • Organic-inorganic hybrid solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Synthesis of triphenylamine dyes for interface modification. The synthetic route is as follows:

[0027]

[0028] Add 0.248 g (0.55 mmol) of the precursor distyryltriphenylamine monoaldehyde, 0.11 g (0.57 mmol) rhodanine acetic acid, 0.1 g (1.3 mmol) ammonium acetate, and 15 mL of glacial acetic acid to a 50 mL round bottom flask, Stir and reflux for 4 hours. After cooling to room temperature, the resulting red mixed solution was poured into ice water. The precipitate was filtered and washed with distilled water. After vacuum drying, the solid matter was dissolved in ethyl acetate, petroleum ether was slowly added dropwise, and a red organic compound dye was precipitated (0.24 g, yield 70%), with a melting point of 219.7 °C. IR (KBr): 3438, 2924, 2850, 1713, 1634, 1576, 1503, 1295. 1 H NMR (300 MHz, DMSO- d 6 ): δ (ppm) 7.76 (s, 1H), 7.54 (d, J= 9.0, 2H), 7.38-7.47 (m, 5H), 7.29-7.35 (m, 5H), 7.13-7.25 (m, 5H), 7.09 (s, 1H), 7.01 (d, J = 8.7, 2...

Embodiment 2

[0029] Example 2: TiO on FTO conductive glass 2 Fabrication of Nanorod Arrays

[0030] According to the volume ratio of deionized water and concentrated hydrochloric acid 1:1, a hydrochloric acid solution was formulated, and 2 ml tetrabutyl titanate was slowly added dropwise to the above 120 ml hydrochloric acid solution under stirring, and stirred at room temperature for 5 min. During the stirring process, a small amount of white flocculent precipitate was produced. This mixture was then poured into the reaction kettle. Place a cleaned FTO conductive glass 6 in the still, against the inner wall of the reaction kettle, and the conductive surface is downward, so that a large amount of precipitation produced by water and heat falls on the conductive surface. The reaction kettle was placed in a stainless steel sleeve, sealed well, placed in an oven, and subjected to hydrothermal reaction at 150°C for 20 h. After the reaction, the temperature was lowered to room temperatu...

Embodiment 3

[0032] Example 3: organic dye molecule dye in TiO 2 Adsorption on the surface of nanorod arrays, transient photocurrent and surface contact angle measurement of electrodes

[0033] The triphenylamine dye prepared in Example 1 was dissolved in acetonitrile to prepare a solution with a concentration of 0.5 mM. The TiO prepared by embodiment 2 2 The membrane electrode was immersed in it for 24 hours to get FTO / dye-TiO 2 electrode.

[0034] The photoelectrochemical experiment uses a three-electrode electrolytic cell with a quartz window, and the FTO / TiO prepared in Example 2 2 And the FTO / dye-TiO that embodiment 3 prepares 2 The electrode was used as the working electrode, the saturated calomel electrode (SCE) was used as the reference electrode, the Pt electrode was used as the counter electrode, and 0.1 M KSCN aqueous solution was used as the supporting electrolyte. A 500 W xenon lamp was used as the light source, and a monochromator (WDG30) was used to irradiate the ...

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Abstract

The invention discloses an organic-inorganic hybrid solar cell and a preparation method thereof. The organic-inorganic hybrid solar cell includes a piece of FTO (Fluorine-doped Tin Oxide) conducting glass, a TiO2 nano rod array growing on the FTO conducting glass, a hole transmission layer and metal Au, wherein the hole transmission layer covers on the surface of the TiO2 nano rod array and is formed by a PEDOT:PSS film; metal Au is evaporated on the PEDOT:PSS film. Triphenylamine dyestuff is adsorbed on the surface of the TiO2 nano rod array, p-type organic polymer poly-3- hexylthiophene is coated on the surface of the TiO2 nano rod array in a spinning mode. By providing interface modification, the organic-inorganic hybrid solar cell can improve contact of inorganic semiconductor TiO2 and organic polymer P3HT as well as the separation efficiency of excitons in the interface, restrain charge recombination and reduce dark currents, and has high photoelectric conversion efficiency. The preparation method of the organic-inorganic hybrid solar cell is simple and easy to operate, obviously improves the photoelectric property and shows a potential application prospect.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to an organic-inorganic hybrid solar cell and a preparation method thereof. Background technique [0002] The high demand for global energy and the environmental pollution caused by the use of fossil energy have made the development and utilization of solar energy a hot topic in the world. Among the many types of solar cells, organic polymer solar cells have been widely used due to the designability of organic material structures, light weight of materials, low manufacturing cost, good flexibility and processability, ease of manufacturing large-area cells, and wide source of materials. research and develop. However, the photoelectric conversion efficiency of pure organic polymer solar cells is low. In 1992, Heeger et al. first discovered the phenomenon of light-induced ultrafast charge transfer between conjugated polymers and C60 (Sariciftci, N. S.; Smilowitz, L.; Heeger, A. J...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/46H01L51/44
CPCH10K71/60H10K30/81Y02E10/549Y02P70/50
Inventor 裴娟王尚鑫
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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