基于有机异质结的有机-无机复合单量子阱发光性质的研究

制备了包含有机异质结的有机-无机复合单量子阱器件ITO＼SiO₂(60 nm)＼MEH-PPV(40 nm)＼Alq₃(40 nm)＼SiO₂(60 nm)＼Al。通过对这种新结构器件光致发光和电致发光的研究，发现介电限域效应和量子尺寸效应对它的发光和电学性质有明显的影响。在交流电驱动下，OISQWOH(organic-inorganic quantum well with organic heterojunction)有三个发光峰：410，510和590 nm。其中410 nm的发光与MEH-PPV的扩展态相关，510和590 nm的发光分别来源于Alq₃和MEH-PPV的激子发光。

The Emission of Organic-Inorganic Single Quantum Well with Organic Heterojunction

Organic-inorganic single quantum well with organic heterojunction ITO\SiO_2(60 nm)\MEH-PPV(40 nm)\Alq_3(40 nm)\SiO_2(60 nm)\Al has been fabricated.With the detailed investigation of photoluminescence and electroluminescence of this novel device,the authors found that the permittivity confinement effect and the quantum size effect have obviously an effect on the optical and electrical properties of organic-inorganic quantum well with organic heterojunction.The electroluminescence of organic-inorganic quantum well with organic heterojunction included three different emissions under alternative-current voltages: 410,510 and 590 nm,which originated from radiative recombination of MEH-PPV,recombination of Alq_3 excitons and MEH-PPV excitons respectively.