S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Blue photoluminescence from in situ Cu-doped porous silicon
- Suh, K. Y.; Kim, Y. S.; Lee, Hong H.
- Issue Date
- American Institute of Physics
- J. Appl. Phys. 91, 10206 (2002)
- We have observed weak blue photoluminescence from in situ Cu-doped porous silicon formed by electrochemical etching with a low etching current density that is aided by cuprous chloride [Cu(I)Cl]. Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy, and Auger electron spectroscopy reveal that the blue emission is associated with formation of the carbonyl group that is catalyzed by Cu on the surface of the porous silicon.