Solar cell based on organic-inorganic hybrid perovskite oriented crystallization thin film

A solar cell and perovskite technology, applied in the field of solar cells, can solve problems such as the barrier of charge transfer due to insulating properties, the inability to achieve photoelectric conversion efficiency, and the reduction of short-circuit current of solar cells, so as to achieve the effect of improving the carrier transport capability.

Active Publication Date: 2017-06-09
ZHEJIANG UNIV
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the introduction of the second amine source, the hybrid perovskite has a two-dimensional structural feature, which tends to grow along the substrate crystal, so that the second amine source is arranged parallel to the substrate, and its insulating properties become perpendicular to the substrate. The hindrance of charge transport in the direction of the substrate greatly reduces the short-circuit current of solar cells using this type of material as the active layer, and thus cannot achieve high photoelectric conversion efficiency, which limits the application of this type of material in solar cells

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
  • Solar cell based on organic-inorganic hybrid perovskite oriented crystallization thin film
  • Solar cell based on organic-inorganic hybrid perovskite oriented crystallization thin film
  • Solar cell based on organic-inorganic hybrid perovskite oriented crystallization thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The glass substrate was ultrasonically washed with detergent, isopropanol, ethanol, and acetone for 5 minutes, rinsed with deionized water, and dried. Spin-coat a layer of metal aluminum with a thickness of 10nm on the glass substrate, after UV-ozone treatment, and then prepare a PEDOT:PSS hole transport layer with a thickness of about 40nm by spin coating, bake at 120°C for 15 minutes take out. Mix and dissolve methylamine iodide, n-butylamine hydriodide, lead iodide, and ammonium thiocyanate in N,N-dimethylformamide, lead iodide and N,N-dimethylformamide The proportioning ratio is 50 milligrams: 1 milliliter, ammonium iodide: n-butylamine hydroiodide: lead iodide: ammonium thiocyanate (molar ratio) is 2:2:3:0.005, stir overnight, obtain precursor body solution; using the method of solution spin coating, the precursor solution was spin-coated on the PEDOT:PSS layer to form a film, the rotation speed was 2000 rpm, the rotation time was 10 seconds, and annealed at 70°C ...

Embodiment 2

[0020] The quartz substrate was ultrasonically washed with detergent, isopropanol, ethanol, and acetone for 5 minutes, rinsed with deionized water and dried. Vacuum-deposit a layer of metallic silver with a thickness of 20nm on the quartz substrate, and after UV-ozone treatment, prepare a PEDOT:PSS hole transport layer with a thickness of about 40nm by spin coating, bake at 120°C for 15 minutes and take it out . Mix and dissolve methylamine iodide, n-butylamine hydriodide, lead iodide, and ammonium thiocyanate in N,N-dimethylformamide, lead iodide and N,N-dimethylformamide The proportioning ratio is 800 mg: 1 milliliter, ammonium iodide: n-butylamine hydroiodide: lead iodide: ammonium thiocyanate (molar ratio) is 2:2:3:1.5, stirs overnight, obtains precursor body solution; using the method of solution spin coating, the precursor solution was spin-coated on the PEDOT:PSS layer to form a film, the rotation speed was 8000 rpm, the rotation time was 60 seconds, and annealed at 15...

Embodiment 3

[0022] The quartz substrate was ultrasonically washed with detergent, isopropanol, ethanol, and acetone for 5 minutes, rinsed with deionized water and dried. A layer of metallic gold with a thickness of 25nm was vacuum evaporated on a quartz substrate. After UV-ozone treatment, a CuOx hole transport layer with a thickness of about 40nm was prepared by spin coating, and it was baked at 150°C for 15 minutes and then taken out. Mix and dissolve methylamine iodide, n-butylamine hydriodide, lead iodide, and ammonium thiocyanate in N,N-dimethylformamide, lead iodide and N,N-dimethylformamide The proportioning ratio is 500 mg: 1 milliliter, ammonium iodide: n-butylamine hydroiodide: lead iodide: ammonium thiocyanate (molar ratio) is 2:2:3:1, stirs overnight, obtains precursor The precursor solution is used for spin-coating, and the precursor solution is spin-coated on the CuOx layer to form a film. The spin speed is 5000 rpm, the spin time is 30 seconds, and annealed at 100°C for 10 ...

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 present invention discloses a solar cell based on an organic-inorganic hybrid perovskite oriented crystallization thin film. The solar cell comprises a substrate, a transparent electrode layer, a hole transport layer, an active layer, an electronic transmission layer and a metal electrode layer, the transparent electrode layer, the hole transport layer, the active layer, the electronic transmission layer and the metal electrode layer are arranged on the substrate orderly from bottom to top, and the active is an organic-inorganic hybrid perovskite material. The solar cell is characterized in that the wet resistance of the solar cell is improved by adopting a method of introducing a second amine source in the three dimensional structural organic-inorganic hybrid perovskite material, at the same time, the oriented direction of the crystal growth is controlled during the preparation process of the active layer thin film material, and the carrier transmission capability of the active layer in a direction vertical with the substrate is improved, thereby achieving the purpose of improving the photoelectric conversion efficiency of the solar cell while considering the material and the device wet resistance.

Description

technical field [0001] The invention relates to a solar cell based on an organic-inorganic hybrid perovskite oriented crystal thin film. [0002] technical background [0003] Organic-inorganic hybrid perovskite materials have excellent photoelectric properties such as strong absorption, high mobility, long carrier lifetime, and adjustable band gap of inorganic semiconductor materials, as well as good large-area solution processability of organic substances. The field of photoelectric conversion has attracted much attention. At present, the efficiency of three-dimensional perovskite solar cells based on lead iodide has exceeded 22%. While the device efficiency is rapidly improving, the poor moisture resistance of the three-dimensional hybrid perovskite thin film material has become the focus of attention. From the material point of view, the method of introducing a second amine source into the three-dimensional structure hybrid perovskite material can make the material have...

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 Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/12H10K30/30Y02E10/549
Inventor 吴刚张欣茜陈红征
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap