近日，国际著名期刊《Nature Communications》发表我校1066vip威尼斯新型显示技术及应用集成教育部重点实验室杨绪勇教授课题组最新研究成果“Smoothing the energy transfer pathway in quasi-2D perovskitefilms using methanesulfonate leadsto highly efficient light-emitting devices”论文链接：https://www.nature.com/articles/s41467-021-21522-8。该论文第一作者为1066vip威尼斯18级硕士生孔令媚，共同第一作者为吉林大学张晓宇副教授和中国科学技术大学李云国研究员。1066vip威尼斯为第一完成单位，通讯作者为1066vip威尼斯杨绪勇教授和香港城市大学Andrey L. Rogach教授。
金属卤化物钙钛矿发光材料作为下一代显示与照明的“明星”材料引起了研究人员极大的兴趣。尤其，准二维钙钛矿因其优异的发光特性和高的成膜质量极具应用潜力，受到了学术和工业界的广泛关注。然而，准二维钙钛矿中的激子能量转移过程中存在着严重的非辐射复合，导致了低效的能量转移很大程度限制了其电致发光性能。
杨绪勇教授团队在准二维钙钛矿成膜形成过程中添加了少量的甲磺酸盐，重构了其薄膜结构，有效地降低了薄膜表面缺陷态并平滑了激子能量转移路径,从而使准二维钙钛矿中的能量转移效率获得了大幅度提升。基于该钙钛矿薄膜构筑的发光二极管（PeLED）效率突破了20%，为目前报道的准二维PeLED最高效率值。这项研究结合了钙钛矿发光二极管中的材料化学结构和光物理过程，显著地提高了器件性能，这使得PeLED有望竞争当前的商业显示技术，如有机发光二极管（OLED）。
以下为杨绪勇教授团队近期在纳米发光材料与器件方面取得的其它一些重要研究成果：
Xuyong Yang* et al., A Multifunctional Molecular Modifier Enabling Efficient Large-Area Perovskite Light-Emitting Diodes,Joule,2020,4,1977（IF=29.155）.
Xuyong Yang* et al., Metal Halide Perovskite Nanorods: Shape Matters, Advanced Materials, 2020,32,2002736（IF=27.398）.
Xuyong Yang* et al., Core/Shell Metal Halide Perovskite Nanocrystals for Optoelectronic Applications, Advanced Funntional Materials,2021,DOI:10.1002/adfm.202100438（IF=16.836）.
Xuyong Yang* et al., Core/Shell Perovskite Nanocrystals: Synthesis of Highly Efficient and Environmentally Stable FAPbBr3/CsPbBr3 for LED Applications, Advanced Funntional Materials, 2020,30,1910582（IF=16.836）.
Xuyong Yang* et al., Promoted Hole Transport Capability by Improving Lateral Current Spreading for High‐Efficiency Quantum Dot Light‐Emitting Diodes,Advanced Science, 2020,7,2001760（IF=15.840）.
Xuyong Yang* et al., Molecule‐Induced p‐Doping in Perovskite Nanocrystals Enables Efficient Color‐Saturated Red Light‐Emitting Diodes,Small,2020,16, 2001062（IF=11.459）.
Xuyong Yang* et al., Lattice Distortion in Mixed-Anion Lead Halide Perovskite Nanorods Leads to their High Fluorescence Anisotropy, ACS Materials Letters (ACS材料类旗舰期刊),2020,2,814.
Xuyong Yang* et al., Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light‐emitting devices,Nature Communications,2019,10,665.(ESI高倍引论文，入选中国百篇最具影响国际学术论文).
Xuyong Yang* et al., Stable, strongly emitting cesium lead bromide perovskite nanorods with high optical gain enabled by an intermediate monomer reservoir synthetic strategy,Nano Letters,2019,19,6315（IF=11.238）.
Xuyong Yang* et al., All-solution processed inverted green quantum dot light-emitting diodes with concurrent high efficiency and long lifetime,Materials Horizons,2019,6,2009（IF=14.356）.
