PHOTRONICS: THE GENERATION OF LIGHT IN SILICON P-N JUNCTIONS AND THE OPTICAL COUPLING OF SEMICONDUCTOR DEVICES
Abstract
Silicon p-n junctions coupled by a light pipe were evaluated as a means for the generation, transmission, and reception of photons which would serve to transfer an electrical signal from one circuit to another without electrical interconnection. The reverse-current radiation of these junctions ranged from > 3 eV to < 0.5 eV with a maximum at about 0.56 eV. The best internal efficiency observed was about 2.5 X 10 to the minus fourth power photon per electron for a p -n diode made on 1.2-ohm-cm silicon. Forward-current radiation was produced with the best efficiency in an n -p diode made on 0.05- ohm-cm silicon which yielded about 6.1 X 10 to the minus fourth power photons per electron. The radiation has a maximum at about 1.1 eV with a width of a few tenths of an eV at room temperature. On a power basis the forward-current radiation is produced with about two orders of magnitude greater efficiency than reverse-current radiation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0413909
Entities
People
- M. A. Gilleo