Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry
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 ch...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/97660 http://hdl.handle.net/10220/11173 |
| _version_ | 1826119975630274560 |
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| author | Alkis, Sabri Ghaffari, Mohammad Okyay, Ali Kemal |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Alkis, Sabri Ghaffari, Mohammad Okyay, Ali Kemal |
| author_sort | Alkis, Sabri |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T05:08:57Z |
| format | Journal Article |
| id | ntu-10356/97660 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:08:57Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/976602020-03-07T13:57:26Z Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry Alkis, Sabri Ghaffari, Mohammad Okyay, Ali Kemal School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Semiconductors 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. 2013-07-11T03:00:14Z 2019-12-06T19:45:01Z 2013-07-11T03:00:14Z 2019-12-06T19:45:01Z 2012 2012 Journal Article https://hdl.handle.net/10356/97660 http://hdl.handle.net/10220/11173 10.1016/j.matchemphys.2012.03.040 en Materials chemistry and physics © 2012 Elsevier B.V. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Semiconductors Alkis, Sabri Ghaffari, Mohammad Okyay, Ali Kemal Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title_full | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title_fullStr | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title_full_unstemmed | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title_short | Synthesis of ultra-small Si/Ge semiconductor nano-particles using electrochemistry |
| title_sort | synthesis of ultra small si ge semiconductor nano particles using electrochemistry |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Semiconductors |
| url | https://hdl.handle.net/10356/97660 http://hdl.handle.net/10220/11173 |
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