DocumentCode :
106052
Title :
Enhancement of GaN-Based Light-Emitting Diodes Transferred From Si (111) Substrate Onto Electroplating Cu Submount With TiO
/SiO
 light-emitting diodes (LEDs) were transferred from Si (111) substrate onto the electroplating Cu submount, with inserting a 5-pair TiO<sub>2</sub>/SiO<sub>2</sub> omnidirectional reflector (ODR) and an Al mirror, defined as TiO<sub>2</sub>/SiO<sub>2</sub>-Al ODR. The reflectivity in the blue spectral range of the TiO<sub>2</sub>/SiO<sub>2</sub>-Al ODR was as high as 97%. The current-voltage (I-V) characteristics showed no obvious degradation of electrical properties for the ODR-based LED on Cu. In comparison to conventional LEDs on Si without ODRs, the light output of ODR-based LEDs on Cu was enhanced by 59.3% at a driving current of 350 mA. The improvement is mainly attributed to the following factors: the removal of the opaque Si substrate, the inserting of the high-reflectivity TiO<sub>2</sub>/SiO<sub>2</sub>-Al ODR, and the transfer onto the Cu submount with better thermal conductivity.</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Keywords : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>III-V semiconductors; aluminium; copper; electroplating; elemental semiconductors; gallium compounds; integrated optoelectronics; light emitting diodes; optical elements; reflectivity; silicon; silicon compounds; thermal conductivity; titanium compounds; Cu; GaN-based light-emitting diodes; InGaN-GaN; LED; MQW; ODR; Si; Si (111) substrate; TiO<sub>2</sub>-SiO<sub>2</sub>-Al; blue spectral range; crack-free multiple quantum wells; current 350 mA; current-voltage characteristics; electrical properties; electroplating Cu submount; omnidirectional reflector; reflectivity; thermal conductivity; Educational institutions; Fabrication; Light emitting diodes; Reflectivity; Silicon; Substrates; Sun; Cu submount; Si substrate; light-emitting diodes (LEDs); omnidirectional reflector (ODR);</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>fLanguage : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>English</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Journal_Title : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>Display Technology, Journal of</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Publisher : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>ieee</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>ISSN : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>1551-319X</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Type : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>jour</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>DOI : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>10.1109/JDT.2014.2342221</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Filename : </div><div class='valueDiv leftDirection leftAlign col-xs-8 col-sm-10 fullRecValueEnglish'>6862824</div>
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<div class='leftDiv labelDiv col-xs-4 col-sm-2 fullRecLabelEnglish'>Link To Document : </div><div class='valueDiv leftDirection leftAlign fullRecValueEnglish col-xs-8 col-sm-10'><a href='https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=106052' target='_blank'>https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=106052</a></div>
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