Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/97660
Title: | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry | Authors: | Alkis, Sabri Ghaffari, Mohammad Okyay, Ali Kemal |
Keywords: | DRNTU::Engineering::Electrical and electronic engineering::Semiconductors | Issue Date: | 2012 | Series/Report no.: | Materials chemistry and physics | Abstract: | In this paper, we describe the formation of colloidal Si/Ge semiconductor nano-particles by electrochemical etching of Ge quantum dots (GEDOT), Silicon–Germanium graded layers (GRADE) and Silicon–Germanium multi-quantum well (MQW) structures which are prepared on Silicon wafers using low pressure chemical vapor deposition (LPCVD) technique. The formation of Si/Ge nano-particles is verified by transmission electron microscope (TEM) images and photoluminescence (PL) measurements. The Si/Ge nano-particles obtained from GEDOT and GRADE structures, gave blue emissions, upon 250 nm, and 300 nm UV excitations. However, the nano-particles obtained from the MQW structure did exhibit various color emissions (orange, blue, green and red) upon excitation with 250 nm, 360 nm, 380 nm and 400 nm wavelength light. | URI: | https://hdl.handle.net/10356/97660 http://hdl.handle.net/10220/11173 |
DOI: | 10.1016/j.matchemphys.2012.03.040 | Schools: | School of Electrical and Electronic Engineering | Rights: | © 2012 Elsevier B.V. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | EEE Journal Articles |
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