Abstract
Donor-acceptor co-doped SiC is a promising light converter for novel monolithic
all-semiconductor white LEDs due to its broad-band donor-acceptor pair luminescence and potentially high internal quantum efficiency. Besides sufficiently high doping concentrations in an appropriate ratio yielding short radiative lifetimes, long nonradiative lifetimes are crucial for efficient light conversion. The impact of different types of defects is studied by characterizing fluorescent silicon carbide layers with regard to photoluminescence intensity, homogeneity and efficiency taking into account dislocation density and distribution. Different doping concentrations and variations in gas phase composition and pressure are investigated.
all-semiconductor white LEDs due to its broad-band donor-acceptor pair luminescence and potentially high internal quantum efficiency. Besides sufficiently high doping concentrations in an appropriate ratio yielding short radiative lifetimes, long nonradiative lifetimes are crucial for efficient light conversion. The impact of different types of defects is studied by characterizing fluorescent silicon carbide layers with regard to photoluminescence intensity, homogeneity and efficiency taking into account dislocation density and distribution. Different doping concentrations and variations in gas phase composition and pressure are investigated.
| Original language | English |
|---|---|
| Title of host publication | EMRS 2013 Spring Meeting, Symposium G |
| Number of pages | 7 |
| Publisher | IOP Publishing |
| Publication date | 2014 |
| Article number | 012002 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | E-MRS 2013 Spring Meeting - Strasbourg, France Duration: 27 May 2013 → 31 May 2013 http://www.emrs-strasbourg.com/index.php?option=com_content&task=view&id=569&Itemid=1583 |
Conference
| Conference | E-MRS 2013 Spring Meeting |
|---|---|
| Country/Territory | France |
| City | Strasbourg |
| Period | 27/05/2013 → 31/05/2013 |
| Internet address |
| Series | I O P Conference Series: Materials Science and Engineering |
|---|---|
| Number | 1 |
| Volume | 56 |
| ISSN | 1757-8981 |
Bibliographical note
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