XU Jun, CHEN Kunji, HUANG Xinfan, HE Zhenhong, HAN Hexiang, WANG Zhaoping, LI Guohua. FABRICATION OF EMBEDDED NANO-CRYSTALLINE Ge AND ITS PHOTOLUMINESCENCE[J]. Chinese Journal of Luminescence, 1999,20(3): 262-264
XU Jun, CHEN Kunji, HUANG Xinfan, HE Zhenhong, HAN Hexiang, WANG Zhaoping, LI Guohua. FABRICATION OF EMBEDDED NANO-CRYSTALLINE Ge AND ITS PHOTOLUMINESCENCE[J]. Chinese Journal of Luminescence, 1999,20(3): 262-264DOI:
a new approach for preparing nanocrystalline Ge embedded in SiO
2
by oxidizing hydrogenated amorphous SiGe films and hydrogenated amorphous Si/amorphous Ge multilayers.It was shown that
after oxidation
Si was bonded to oxygen to form SiO
2
and nanocrystalline Ge was precipitated.Room temperature photoluminescence was observed by using Ar
+
laser(488nm)at RT-and the luminescent peak is located at 2.2eV.The sample started from multilayers has a stronger luminescent intensity and narrower width compared with the sample started from SiGe films
which suggested the size distribution of nc-Ge could be controlled in this structures.