Using the typical moled structure glass / dbr / ito / htl / eml ( etl ) / al , the el spectrum narrowing , intensity enhancement in the normal direction as well as emission intensity redistribution in space are observed . by the introduction of single layer silver film instead of the dbr / ito multilayer , a ( / 2 - length cavity is obtained . using this kind of microcavity , three - color single mode pl from a single material alq and three - color single mode el from double layers pvk / alq are achieved for the first time 通過以金屬銀替代多層結構的dbr / ito ,既作為反射鏡,又作為el器件中的空穴注入電極,設計出腔長只有( / 2的超短微腔,采用同一種寬譜帶材料alq作為光發射層,首次報道了三基色單模光致發光和pvk / alq雙層結構的三基色單模電致發光。
The petiole and leaf lengths and leaf widths and cork thicknesses and seed widths of the quercus variabilis communities appeared to have a second - degree parabola relation with the latitudes of the communities ; the petiole lengths and leaf lengths and cork thickness appeared to have a clear second - degree parabola relation with the elevations of the communities ; the leaf and seed lengths appeared to have a clear positive correlativity with the elevations ; the seed lengths had a typical negative correlation with the elevations 栓皮櫟種群的葉柄長、葉長、葉寬、栓皮厚度、種長和種寬隨緯度呈現出二次拋物線關系;葉柄長、葉長和栓皮厚度隨海拔高度呈現明顯的二次拋物線關系;葉寬和種寬隨海拔高度的變化呈現出明顯的正線性相關;種長與海拔的關系為一種典型的負線性相關。