Enhancing extraction efficiency of quantum dot light-emitting diodes by surface engineering Zhang, Qin ; Gu, Xiaobing ; Chen, Zihan ; Jiang, Jie ; Zhang, Zhimin ; Wei, Jufu ; Li, Feng ; Jin, Xiao ; Song, Yinglin ; Li, Qinghua Abstract Publication: Optics Express Pub Date: July 2017 DOI: 10.1364/OE.25.017683 Bibcode: 2017OExpr..2517683Z