Usage of microplasma signal noise for solar cells diagnostic
- Resource Type
- Authors
- M. Raska; Petr Sadovsky; Pavel Koktavy; Jiri Vanek; Kristyna Kubickova
- Source
- SPIE Proceedings.
- Subject
- Engineering
Microplasma
business.industry
Noise (signal processing)
Signal
law.invention
Impact ionization
Quality (physics)
law
Electric field
Solar cell
Electronic engineering
Optoelectronics
business
p–n junction
- Language
- ISSN
- 0277-786X
This work deals with the usage of micro-plasmas signal noise for solar cells diagnostic. When high electric field is applied to PN junction with some technological imperfections it produces in tiny areas of enhanced impact ionization called micro-plasmas which could lead to deterioration in quality or destruction of PN junction. On this account it is possible to use methods which indicate presence of micro-plasma in junction and enable quality and quantitative description of tested cells.