摘要
Monolithicwhite-light-emittingdiodes(whiteLEDs)withoutphosphorsaredemonstratedusingInGaN/GaNmultiplequantumwells(MQWs)grownonGaNmicroringsformedbyselectiveareaepitaxyonSiO2maskpatterns.Themicroringstructureiscomposedof{1-101}semi-polarfacetsanda(0001)c-plane,attributedtofavorablesurfacepolarityandsurfaceenergy.ThewhitelightisrealizedbycombiningshortandlongwavelengthsofelectroluminescenceemissionsfromInGaN/GaNMQWsonthe{1-101}semi-polarfacetsandthe(0001)c-plane,respectively.ThechangeintheemissionwavelengthsfromeachmicrofacetisduetotheIncompositionvariationsoftheMQWs.Theseresultssuggestthatwhiteemissioncanpossiblybeobtainedwithoutusingphosphorsbycombiningemissionlightfrommicrostructures.
出版日期
2016年01月11日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)