Abstract
SOLID STATE REACTIONS AT THE INTERFACE BETWEEN THIN FILMS OF AU AND HYDROGENATED AMORPHOUS SI ARE PROBED BY INTERFERENCE ENHANCED RAMAN SCATTERING. SCATTERING, TEM, SCANNING AUGERMICROPROBE, AND SCHOTTKY ELECTRICAL MEASUREMENTS. IT IS FOUND THAT CRYSTALLINE SI ISLANDS WITH A DIMENSION OF APPROXIMATELY 1 ″MU″ M GROW DENDRITICALLY AFTER ANNEALING TO TEMPERATURES ABOVE 150 D. C. THE ISLANDS APPARENTLY GROW LATERALLY DUE TO DIFFUSION OF SI THROUGH AU. THIS FORMATION OF SI CRYSTALLITES OCCURS AT A TEMPERATURE MUCH LOWER THAN THE NORMAL CRYSTALLIZATION TEMPERATURE OF > 650 D. C FOR THE HYDROGENATED AMORPHOUS SI. THROUGH THIS PROCESS THE SCHOTTKY BARRIER ISNOT DESTROYED. A MODEL IS PROPOSED TO DESCRIBE THE FORMATION PROCESS, WHICH INCLUDES THE LOW-TEMPERATURE SI DIFFUSION INTO AU TO FORM A AU-SI INTERMIXED PHASE, AND THE AGGLOMERATION OF THE AU-RICH REGIONS.
Original language | English (US) |
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Pages (from-to) | 632-636 |
Number of pages | 5 |
Journal | J VAC SCI TECHNOL |
Volume | V 21 |
Issue number | N 2 |
DOIs | |
State | Published - 1982 |
Externally published | Yes |
Event | PROC OF THE ANNU CONF ON THE PHYS AND CHEM OF SEMICOND INTERFACES, 9TH - Pacific Grove, CA, USA Duration: Jan 27 1982 → Jan 29 1982 |
ASJC Scopus subject areas
- Engineering(all)