MIDyM隧道发光二极管的研究

The Research of MIDyM Light Emission Tunnel Diode

稀土元素Dy引入以玻璃为基底的隧道发光二极管（简称为MIDyMTD）后，其发光强度得到了明显提高，Ⅰ－Ⅴ特性的负阻现象变弱，并出现了较弱的量子共振隧穿现象。量子共振隧穿导致了起发光中介作用的SPP慢模式的增强，最终导致了MIDyMTD发光的增强。另外，以铌酸锂单晶片为基底的MIDYMTD出现了较大的负阻（峰：谷—7：1），并且发射光谱的短波方向出现了戏剧性的增加。

An obvious improvment of light emission intensity in the multilayered tunnel diode on a glass which contains the rare-earth element Dy(MIDyMTD)has been observed. And in this structure we have also obtained small Negative Differential Resistance (NDR) and tiny quantum resonant tunneling. The quantumresonant tunneling causes the magnification of intensity of the slow-mode SPP,which plays a role of intermediate in the process of resonant tunneling hot electronscoupling with the fast-mode SPP, and finally make MIDyMTD emit larger light intensity. In addition, the MIDyMTD on the LiNbO3 monocrystal wafer presents alarge NDR whose peak-to-valley ratio is about 7 and the dramatically increasing ofthe light emission spectrum in the range of short waves.