Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
80594 | Solar Energy Materials and Solar Cells | 2006 | 8 Pages |
Abstract
The structural properties and hydrogen bonding of undoped and phosphorous doped polycrystalline silicon produced by step-by-step laser dehydrogenation and crystallization technique were investigated using Raman spectroscopy and hydrogen effusion measurements. At low laser fluences, EL, a two-layer system is created. This is accompanied by the change in hydrogen bonding. The intensity of the Si–H vibration mode at 2000 decreases faster than the one at 2100 cm−1. This is even more pronounced in phosphorous-doped specimens. The laser crystallization results in an increase of the hydrogen binding energy by approximately 0.2–0.3 eV compared to the amorphous starting materials.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
R. Saleh, N.H. Nickel,