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

Application of heteroatom doped carbon quantum dot in solar cell

A technology of solar cells and carbon quantum dots, which is applied in the application field of heteroatom-doped carbon quantum dots in solar cells, can solve the problems that the photoelectric conversion efficiency cannot meet the needs of practical applications, and achieve high photoelectric conversion efficiency and absorption The effect of spectral broadness

Inactive Publication Date: 2013-05-15
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF2 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current research shows that the research on the application of carbon quantum dots in solar cells has just begun. For example, the research group of Beijing University of Science and Technology used green fluorescent carbon quantum dots as new electron acceptor materials to construct organic solar cells. The efficiency is 1.28% [Adv.Mater.2011, 23, 776–780]; researchers at the University of Toronto in Canada used carbon quantum dots as photosensitizers to construct quantum dot-sensitized solar cells, and their photoelectric conversion efficiency was only 0.13%; Researchers at Indiana University in the United States have also done similar work, but their photoelectric conversion efficiency is far from meeting the needs of practical applications [Nano Lett.2010,10,1869–1873]

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
  • Application of heteroatom doped carbon quantum dot in solar cell
  • Application of heteroatom doped carbon quantum dot in solar cell
  • Application of heteroatom doped carbon quantum dot in solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of carbon quantum dots doped with N and P diatoms, comprising the following steps:

[0041] Put 10mg of polymer PPV1 solid powder into a beaker, add 40mL of 0.5M hydrochloric acid aqueous solution, and mix well; transfer the well-mixed reaction solution into a hydrothermal reactor, control the reaction temperature at 250°C, and the reaction time for 12 hours. After cooling Separating and purifying to obtain carbon quantum dots doped with N and P double atoms.

[0042] The above-mentioned N, P diatomic doped carbon quantum dots are used as new electron acceptor / donor materials to construct organic polymer solar cells: the conductive polymer polyethylenedioxythiophene (PEDOT) and polystyrene sulfonate (PSS) was mixed according to the weight ratio of 1:25, and spin-coated on indium tin oxide (ITO) transparent glass with a thickness of about 30 nm as a hole transport auxiliary layer. Poly 3-hexylthiophene (P3HT) and N, S double-atom doped carbon quantu...

Embodiment 2

[0046] A preparation method of carbon quantum dots doped with S and N diatoms, comprising the following steps:

[0047] Put 10mg of polymer PT1 solid powder into a beaker, add 40mL of 5M aqueous sulfuric acid solution, and mix well; transfer the well-mixed reaction solution into a microwave reactor, control the reaction temperature at 150°C, and the reaction time for 12 hours, separate and purify after cooling , to obtain carbon quantum dots doped with S and N diatoms

[0048] The above-mentioned S, N diatomically doped carbon quantum dots are used as new electron acceptor / donor materials to construct organic polymer solar cells: the conductive polymer polyethylenedioxythiophene (PEDOT) and polystyrene sulfonate (PSS) was mixed according to the weight ratio of 1:25, and spin-coated on indium tin oxide (ITO) transparent glass with a thickness of about 30 nm as a hole transport auxiliary layer. Poly C 60 PCBM and S, N diatomically doped carbon quantum dots are dissolved in chl...

Embodiment 3

[0052] A preparation method of Se, N double-atom-doped carbon quantum dots, comprising the following steps:

[0053] Put 5 mg of polymer PT2 solid powder into a beaker, add 40 mL of 1M potassium hydroxide aqueous solution, and mix well; transfer the well-mixed reaction liquid into an ultrasonic reactor, control the reaction temperature at 250 ° C, and the reaction time is 36 hours. After cooling Separating and purifying to obtain Se and N double-atom-doped carbon quantum dots. The above-mentioned Se, N diatomically doped carbon quantum dots are used as new electron acceptor / donor materials to construct organic polymer solar cells: the conductive polymer polyethylenedioxythiophene (PEDOT) and polystyrene sulfonate (PSS) was mixed according to the weight ratio of 1:25, and spin-coated on indium tin oxide (ITO) transparent glass with a thickness of about 30 nm as a hole transport auxiliary layer. Poly 3-hexylthiophene (P3HT) and Se, N diatomically doped carbon quantum dots were ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides an application of a heteroatom doped carbon quantum dot in a solar cell. The heteroatom doped carbon quantum dot comprises a kind or several kinds of heteroatom of nitrogen(N), sulfer (S), silicon (Si), selenium (Se), phosphorus (P), arsenic (As), germanium (Ge), gadolinium (Gd), boron (B), antimony(Sb), tellurium (Te) and the like, and absorption spectral wavelength of the carbon quantum dot is in the range of 300-850 nanometers. According to a study, the heteroatom doped carbon quantum dots are provided with high-efficiency photovoltaic conversion performance in organic solar cells and quantum dot sensitization solar cells, and show a great application prospect in an energy field.

Description

technical field [0001] The invention relates to the technical field of preparation and application of heteroatom-doped carbon quantum dots, in particular to the application of heteroatom-doped carbon quantum dots in solar cells. Background technique [0002] Environmental and energy issues are undoubtedly two major issues facing the world today, which have aroused widespread and profound concern in the scientific community. Solar energy is one of the most promising energy sources in the future, and it is an inexhaustible pollution-free and clean energy source. It has always been the goal of scientists to directly convert solar energy into electrical energy and thermal energy for the benefit of human beings. Therefore, since the first monocrystalline silicon solar cell came out in 1954, people have placed great hopes on using semiconductor solar cells to solve the energy crisis caused by the depletion of fossil fuels in the future. At present, various types of solar cells h...

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
IPC IPC(8): H01L51/42H01L51/46H01G9/20
CPCY02E10/549
Inventor 葛介超汪鹏飞蓝敏焕王鹰刘卫敏
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com