FUNCTIONALIZED SEMICONDUCTOR NANOPARTICLES AND METHOD FOR THE MANUFACTURE THEREOF
申请人:Universiteit van Amsterdam
公开号:EP3564339A1
公开(公告)日:2019-11-06
Method for manufacturing fluoro(hydro)carbon-substituted silicon or germanium quantum dots which comprises the steps of:
- reacting a Zintl salt or intermetallic compound of post-transition metals or metalloids of silicon or germanium with a halogen-containing oxidizing agent to form halide-terminated silicon or germanium quantum dots,
- reacting the halide-terminated silicon or germanium quantum dots with a fluoro(hydro)carbon agent selected from the group of
metal-fluoro(hydro)carbon compounds of the formula MRq, wherein M is a metal selected from Group 1, 2, 4, 11, 12, 13, or 14 of the periodic table of elements, q is an integer which corresponds to the valence of the metal, and R is CFnHm-fluoro/hydro-carbon, wherein n is 1 or 2, m is 0 or 1, and the total of n and m is 2, wherein each R may be the same or different,
metal-fluoro(hydro)carbon halide compounds of the formula NQaRp wherein N is a metal selected from Group 1, 2, 4, 11, 12, 13, or 14 of the periodic table of elements, Q is a halogen selected from F, Cl, Br, or I, wherein each Q may be the same or different, a and p are integers in the range of 1-3, and the total of a and p corresponds to the valence of the metal, and R is as defined above, and
metal-fluoro(hydro)carbon compounds of the formula CuR2Li, wherein R is as defined above,
to form fluoro(hydro)carbon-substituted silicon or germanium quantum dots.
The method makes it possible to obtain quantum dots with a tailored emission spectrum with high quality in a stable process. The particles obtained by this process are also claimed.
制造
氟(氢)碳取代
硅或
锗量子点的方法,包括以下步骤
- 将
硅或
锗的过渡后
金属或类
金属的 Zintl 盐或
金属间化合物与含卤素的氧化剂反应,形成卤化物封端
硅或
锗量子点、
- 将卤化物封端
硅或
锗量子点与选自以下组别的
氟(氢)碳剂反应
式 MRq 的
金属-
氟(氢)碳化合物,其中 M 是选自元素周期表第 1、2、4、11、12、13 或 14 族的
金属,q 是对应于
金属价的整数,R 是 CFnHm-
氟/氢-碳,其中 n 是 1 或 2,m 是 0 或 1,n 和 m 的总和是 2,其中每个 R 可以相同或不同、
式 NQaRp 的
金属-
氟(氢)碳卤化物 其中 N 是选自元素周期表第 1、2、4、11、12、13 或 14 族的
金属,Q 是选自 F、Cl、Br 或 I 的卤素,其中每个 Q 可以相同或不同,a 和 p 是 1-3 范围内的整数,a 和 p 的总和与
金属的化合价相对应,R 如上所定义,以及
式 CuR2Li 的
金属-
氟(氢)碳化合物,其中 R 如上文所定义、
以形成
氟(氢)碳取代的
硅或
锗量子点。
该方法可以在稳定的工艺中获得具有定制发射光谱的高质量量子点。通过该工艺获得的颗粒也在权利要求之列。