Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A composite photoanode for paper-type perovskite solar cells and its preparation method

A technology of solar cells and composite light, which is applied in the field of solar electrode materials, can solve the problems of difficult internal charge transmission and low photoelectric conversion efficiency, and achieve the effects of improving photoelectric conversion efficiency, promoting absorption and charge collection, and good light absorption

Inactive Publication Date: 2017-05-24
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of difficulty in internal charge transport and low photoelectric conversion efficiency of the existing flexible perovskite solar cell photoanode film due to the temperature of the polymer transparent conductive polymer substrate being lower than 150°C , providing a paper-type perovskite solar cell composite photoanode and a preparation method thereof

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A composite photoanode for paper-type perovskite solar cells and its preparation method
  • A composite photoanode for paper-type perovskite solar cells and its preparation method
  • A composite photoanode for paper-type perovskite solar cells and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] (1) Nanofibers were synthesized by hydrothermal method: raw materials were 0.2g P25 powder (P25 refers to nano-titanium dioxide) + 30ml deionized water + 12g NaOH, hydrothermal reaction at 200°C for 96h to obtain nanofiber slurry.

[0061] (2) surfactant F-127 is added in the nanofiber slurry again, the massfraction of surfactant F-127 is 0.1% of the nanofiber slurry quality, to improve the dispersibility of nanofiber in the slurry, and Stir and mix to form a well-dispersed nanofiber precursor slurry.

[0062] (3) The precursor slurry prepared in step 2 is made into a nano-paper blank by hot-pressing a film-forming method.

[0063] (4) Carry out sintering treatment on the nano paper blank, the sintering conditions are respectively 500° C. for 30 min to obtain the nano paper, and then naturally cool to room temperature, the thickness of the nano paper is about 0.5 μm.

[0064] (5) Disperse the Minhua raw material in DMF, an organic solvent, and filter. Filtrate, PbCl ...

Embodiment 2

[0076] On the basis of Example 1, select its No. 10 sample nanopaper preparation conditions, that is, the composition is 0.01% graphene+titanium oxide by mass fraction, the sintering system is 500°C-30min, and the film thickness is 0.5μm nanopaper, change The photoelectric conversion efficiency of the paper-type perovskite solar cell is shown in Table 2 below under the premise of other parameters such as the precursor composition / concentration of the metal organic halide, the sintering system, and the film thickness.

[0077] Table 2 Effects of different sensitizer layer compositions and preparation processes on the photoelectric conversion efficiency of the battery

[0078]

[0079] It can be seen from Table 2 that the precursor composition, concentration, solvent composition and CH 3 NH 3 The concentration of the isopropanol solution of I and the soaking time have a significant impact on the photoelectric conversion efficiency of the battery. The film-forming method, thic...

Embodiment 3

[0081] On the basis of Example 2, select the nano paper preparation conditions of No. 10 sample of Example 1 (that is, the composition is a mass fraction of 0.01% graphene+titanium oxide, the sintering system is 500°C-30min, and the film thickness is 0.5 μm nano paper) and the sensitizer layer preparation condition of the No. 1 sample of embodiment 2 (the PbCl of 80mg / ml 2 +350mg / ml of PbI 2 +40mg / ml CH 3 NH 3 I, organic solvent selects DMF, the CH of 30mg / ml for use 3 NH 3 Soak in the isopropanol solution of I for 60s, prepare a sensitizer layer with a thickness of 0.5 μm by drop coating, and undergo a heat preservation treatment at 70° C. for 30 minutes), change the dense TiO x The preparation method of the connecting layer and the transparent conductive film is optimized to optimize its performance, and the photoelectric conversion efficiency of the paper-type perovskite solar cell is obtained as shown in Table 3 below under the premise that other conditions remain unch...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a paper type perovskite solar cell compound photoanode and a preparation method thereof, aiming at solving the problems that the a high-molecular transparent conductive polymer substrate of the existing flexible perovskite solar cell compound photoanode is lower than 150DEG C, so that the internal charge transmission is difficult and the photoelectric conversion efficiency is low. Aiming at the problems, the structure of the flexible perovskite solar cell compound photoanode is wholly improved. The compound photoanode comprises four layer structure sequentially including a nanopaper layer, a metal organic halide sensitizer layer, a compact TiOx connection layer and a transparent conductive thin film. The paper type perovskite solar cell compound photoanode is reasonable in design, simple and convenient to prepare and low in cost, and has good light absorption capacity, and the strength of the photoanode is also improved. In addition, the invention further provides a preparation method of the paper type perovskite solar cell compound photoanode. The method can be used for preparing a paper type perovskite solar cell, and has remarkable significance on the exploration of reducing the battery cost.

Description

technical field [0001] The invention relates to the field of solar electrode materials, in particular to solar electrode materials and a preparation method thereof, in particular to a paper-type perovskite solar cell composite photoanode and a preparation method thereof. Background technique [0002] Perovskite solar cell is a new type of solar cell developed on the basis of Dye sensitized solar cell (DSC), which is mainly composed of photoanode, light absorbing material, hole transport material and metal counter electrode. Composition, with the same battery structure as DSC. In perovskite solar cells, the core part is made of metal organic halide materials (CH 3 NH 3 wxya 3 , X=Cl / Br / I) replaced the dye sensitizer in DSC. The metal organic halide material has a suitable tunable band gap (CH 3 NH 3 PB 3 The band gap is 1.5eV, CH 3 NH 3 PbBr 3 The band gap is 2.3eV), which is conducive to fully absorbing sunlight. With its advantages of high carrier mobility, low p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/042H01G9/048H01G9/20
Inventor 赵晓冲杨丽军王劲川杨盼
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products