Doped nanocrystal has properties of sensitive to light, short for life period of carrier, fast photoresponse and fair response to visible light, acted as many photoconductive device.

• 掺杂（Au、Cu）后的纳米晶对光的敏感性强，载流子寿命短，光响应快，对可见光响应好，可用来作许多光电导器件。