Photoelectronic properties of zinc phosphide crystals, films and heterojunctions. Quarterly progress report No. 5, April 1-June 30, 1980
Growth of Zn/sub 3/P/sub 2/ crystals using a chemical transport method with iodine as the transport agent produced a successful growth run with greatly enhanced growth rate. Surprisingly, the electrical properties of the crystal appear to be unaffected by the iodine transport agent. This method is being explored as an alternative to thermal diffusion for doping of Zn/sub 3/P/sub 2/. Hall effect measurements have been made on several Zn/sub 3/P/sub 2/ crystals as a function of temperature. Measured hole mobilities were between 10 and 20 cm/sup 2//V-sec. The mobility varies with temperature in the expected way for lattice scattering at higher temperatures and charged imperfection scattering at lower temperatures. n-CdO/p-Zn/sub 3/P/sub 2/ junctions were prepared by rf sputtering of CdO on Zn/sub 3/P/sub 2/ crystal substrates, both with and without previous etching of the surface. Poor dark diode and almost absent light response were measured. Thin films of Zn/sub 3/P/sub 2/ grown by close-spaced vapor transport have a higher growth rate in H/sub 2/ than in Ar. Thermoelectric power measurements are being prepared to analyze the transport properties in these films.
- Research Organization:
- Stanford Univ., CA (USA). Dept. of Materials Science and Engineering
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 5042174
- Report Number(s):
- SERI/PR-8031-1-T1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoelectronic properties of zinc phosphide crystals, films, and heterojunctions. Quarterly progress report No. 11, October 1-December 31, 1981
Photoelectronic properties of zinc phosphide crystals, films and heterojunctions. Quarterly progress report no. 10, July 1-September 30, 1981
Related Subjects
36 MATERIALS SCIENCE
SOLAR CELLS
SEMICONDUCTOR MATERIALS
ZINC PHOSPHIDES
CRYSTAL GROWTH
ELECTRICAL PROPERTIES
SEMICONDUCTOR JUNCTIONS
CADMIUM OXIDES
CARRIER MOBILITY
CRYSTAL DEFECTS
ELECTRIC CONDUCTIVITY
FILMS
HALL EFFECT
IMPURITIES
MONOCRYSTALS
POLYCRYSTALS
SPUTTERING
TEMPERATURE DEPENDENCE
CADMIUM COMPOUNDS
CHALCOGENIDES
CRYSTAL STRUCTURE
CRYSTALS
DIRECT ENERGY CONVERTERS
EQUIPMENT
JUNCTIONS
MATERIALS
MOBILITY
OXIDES
OXYGEN COMPOUNDS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
SOLAR EQUIPMENT
ZINC COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion
360601 - Other Materials- Preparation & Manufacture