title: Electroluminescence of zinc selenium (ZnSe) nanocrystals co-doped with poly[2-methoxy-5-(2'-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV).
abstract: We have synthesized water soluble zinc selenium (ZnSe) nanocrystals by using mercaotoacetic acid (TGA) as the stabilizer. The synthesized ZnSe nanocrystals were co-doped with poly[2-methoxy-5-(2'-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV) to fabricate an organic/ inorganic hybrid multilayer light-emitting device (LED). The structure of the device was indium-tin-oxide (ITO)/poly (ethylene-dioxythiophene):poly(styrenesul-fonate) (PEDOT:PSS)/MEH-PPV:ZnSe/bathocuproine (BCP)/tris-(8-hydroxylquinoline)-aluminum (Alq3)/Al. We demonstrate that the device has a lower driving voltage and increased current densities and power efficiencies owing to the co-doped ZnSe quantum dots. We obtained good efficiency of the devices when the quality ratio of MEH-PPV and ZnSe quantum dots was 1:1.
authors.affiliation: Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, P. R. China.
authors.forename: Yuehong
authors.initials: Y
authors.lastname: Yin
authors.forename: Zhenbo
authors.initials: Z
authors.lastname: Deng
authors.forename: Zhaoyue
authors.initials: Z
authors.lastname: Lü
authors.forename: Ye
authors.initials: Y
authors.lastname: Zou
authors.forename: Zheng
authors.initials: Z
authors.lastname: Chen
authors.forename: Hailiang
authors.initials: H
authors.lastname: Du
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Wang