Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing, 210096, People's Republic of China.
Nanotechnology. 2014 Jan 17;25(2):025603. doi: 10.1088/0957-4484/25/2/025603. Epub 2013 Dec 12.
Using ZnSe nanocrystals (NCs) as starting material, Ag-doped or Cu-doped ZnCdSe ternary NCs were prepared by hydrazine-promoted sequential cation exchange in aqueous media. The composition of the NCs can be flexibly controlled by varying the amount of intermediate Ag or Cu cation addition, thus changing the emission of the ternary NCs while preserving the NC size. According to Vegard's law, the as-prepared ternary NCs possess an alloyed structure. In addition, the ternary NCs obtained have a high quantum yield, strong stability and a broad optical tuning range.
使用 ZnSe 纳米晶体（NCs）作为起始材料，通过水相中的肼促进的顺序阳离子交换，制备了 Ag 掺杂或 Cu 掺杂的 ZnCdSe 三元 NCs。通过改变中间 Ag 或 Cu 阳离子添加量，可以灵活控制 NC 的组成，从而改变三元 NC 的发射，同时保持 NC 尺寸不变。根据维加德定律，所制备的三元 NC 具有合金结构。此外，所获得的三元 NC 具有高量子产率、强稳定性和宽光学调谐范围。
