Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김은규 | - |
dc.date.accessioned | 2017-10-23T02:38:07Z | - |
dc.date.available | 2017-10-23T02:38:07Z | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | JOURNAL OF LUMINESCENCE, v. 168, Page. 288-292 | en_US |
dc.identifier.issn | 0022-2313 | - |
dc.identifier.issn | 1872-7883 | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0022231315004652?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/30188 | - |
dc.description.abstract | GaN:Mn epilayers were grown on Al2O3 substrate uisng molecular beam epitaxy (MBE) and were subsequently implanted with Mn+ ions (1% and 10%). Photoluminescence (PL) with 1% of Mn showed that optical transitions related to Mn revealed the donor-Mn pair (D, Mn) at 2.5 eV and the electron-Mn pair (e, Mn) around 3.1 eV, and yellow luminescence (YL) around 2.20-2.25 eV. Photoluminescence (PL) with 10% of Mn showed the same but enhanced optical transitions as above. However, the new transitions around 1.65 eV for the sample with 10% which did not appeared with Mn of 1% were very weakly produced. The results of cathode-luminescence (CL) with 10% of Mn showed transitions related to Mn in PL together with new transitions around 1.72 eV. However, the new transitions around 1.72 eV for the sample with 10% according to high accelerating voltage were very remarkably activated in contrast with PL transitions which appeared were very weakly produced in samples with Mn of 10%. Transitions around 1.72 eV in CL correspond to though around 1.65 eV in PL This result means that deep donor (probably, V-N) is detected with increasing accelerating voltage and Mn-V-N complex is formed. This is supported by strong electron beam sensitivity of the IR emission bands. It is well known that heavy Mn doping ( ˃ similar to 10(19) C m(-3)) leads to a downshift of the Fermi level and promotes the formation of defect complexes of Mn-V-N. In our case, Mn doping concentration is ˃ similar to 10(21) C m(-3). Therefore, it is conjectured that the CL transition around 1.72 eV corresponds to Mn-V-N complex. (C) 2015 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | This work was supported by the National Research Foundation of Korea (NRF) Grant funded by Ministry of Education, Science and Technology (MEST) (Nos. NRF-2014R1A2A2A01007718, NRF-2014-066298, NRF-2014R1A2A1A11053936, NRF-2013R1A1A2008875, and NRF-2015R1A2A2A01004782) and by the Quntum-functional Research Center (QSRC) of Dongguk University and supported from the KIST Institutional Programme, including the Dream Project, the Converging Research Center Programme through the MEST (2012K001280). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Photoluminescence (PL) | en_US |
dc.subject | Cathode-luminescence (CL) | en_US |
dc.subject | GaMnN | en_US |
dc.title | Clarification of difference for transition between photoluminescence and cathode-luminescence based on GaMnN | en_US |
dc.type | Article | en_US |
dc.relation.volume | 168 | - |
dc.identifier.doi | 10.1016/j.jlumin.2015.08.025 | - |
dc.relation.page | 288-292 | - |
dc.relation.journal | JOURNAL OF LUMINESCENCE | - |
dc.contributor.googleauthor | Lee, J. W. | - |
dc.contributor.googleauthor | Shon, Yoon | - |
dc.contributor.googleauthor | Subramaniam, N. G. | - |
dc.contributor.googleauthor | Kwon, Y. H. | - |
dc.contributor.googleauthor | Kang, T. W. | - |
dc.contributor.googleauthor | Im, Hyunsik | - |
dc.contributor.googleauthor | Kim, H. S. | - |
dc.contributor.googleauthor | Park, C. S. | - |
dc.contributor.googleauthor | Kim, E. K. | - |
dc.contributor.googleauthor | Song, J. D. | - |
dc.relation.code | 2015002474 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | ek-kim | - |
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