Systems comprising a nanocrystal and a luminescent chromophore are disclosed herein. The luminescent chromophore can emit energy having a first wavelength. The luminescent chromophore is configured to transfer the emitted energy having a first wavelength to the nanocrystal. The luminescent chromophore can be linked to the nanocrystal via a covalent bond. Absorption of the energy having first wavelength by the nanocrystal can activate the nanocrystal and result in an increase in quantum yield. In some embodiments, the nanocrystal can include silicon, germanium, carbon, or combinations thereof. In some examples, the luminescent chromophore can be pyrene. The luminescent chromophore and the silicon containing nanocrystal can be in a ratio of about 1:1 to 100:1 in the nanocrystal system. Methods of making and using the system are also disclosed.
本文公开了由纳米晶体和发光发色团组成的系统。发光发色团可发射具有第一波长的能量。发光发色团被配置为将具有第一波长的发射能量传递给纳米晶体。发光发色团可通过共价键与纳米晶体相连。纳米晶体吸收具有第一波长的能量可激活纳米晶体,从而提高量子产率。在某些实施例中,纳米晶体可以包括
硅、
锗、碳或它们的组合。在某些实例中,发光发色团可以是
芘。发光发色团和含
硅纳米晶体在纳米晶体系统中的比例可为 1:1 至 100:1。还公开了该系统的制造和使用方法。