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将少量稀土元素 Ｄｙ掺入隧道结制备成 Ｃｕ－Ｄｙ－Ａ１２Ｏ３－ＭｇＦ２－Ａｕ结构双势垒发光结。结果表明，稀土元素 Ｄｙ的引入，改善了结的粗糙度，使结由界面等离极化激元（ｓｕｒｆａｃｅ ｐｌａｓｍｏｎ ｐｏｌａｒｉｔｏｎ，ＳＰＰ）耦合发光的阈值电压有所降低，结的发光强度得到提高，改善了结的发光性能，与不掺Ｄｙ的结相比，其发光光谱在４６０．８ ｎｍ处发生了分裂，这与Ｄｙ掺入后栅区形成的附加能级有关。
A small amount of rare earth element Dy doped into the tunnel junction prepared Cu-Dy-A12O3-MgF2-Au double-barrier structure of light-emitting junction. The results show that the introduction of rare earth element Dy improves the roughness of the junction, decreases the threshold voltage of the junction emission by the interface plasmon polariton (SPP), enhances the luminescence intensity of the junction and improves the junction Compared with the non-Dy doped junction, the emission spectrum at 460.8 nm is splitted, which is related to the formation of additional energy levels in the gate region after Dy incorporation.