Polycrystalline silicon ingot and manufacturing method thereof as well as solar cell
A technology of polycrystalline silicon ingots and manufacturing methods, which is applied to the growth of polycrystalline materials, chemical instruments and methods, circuits, etc., can solve the problems of high impurity content and defect density, affecting the photoelectric conversion efficiency of solar cells, and low photoelectric conversion efficiency. Effect of reducing impurity content and improving photoelectric conversion efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0052]As mentioned in the background technology section, the photoelectric conversion efficiency of solar cells made of polycrystalline silicon ingots produced by the DSS method of the prior art is low. Specifically, oxygen and carbon are the main light element impurities in cast polycrystalline silicon ingots, especially the concentration of carbon is higher than that in Czochralski single crystal silicon, and there are also impurities such as metal elements, nitrogen, and hydrogen. It will adversely affect the performance of polycrystalline silicon materials and solar cells; on the other hand, because the cast polycrystalline silicon ingot has high density of grain boundaries, dislocations and micro-defects, these defects become the recombination centers of minority carriers in silicon materials, The rapid recombination of charge carriers leads to low minority carrier lifetime, and, because the orientation between grains is random, it is difficult to use chemical methods to t...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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