中文摘要：

硅纳米晶由于量子限域效应的作用而产生了多种不同于体硅材料的新特性,如荧光效应显著、光学带隙可调等,因而在微电子、光伏、生物医学等领域受到极大的重视。本文介绍了分立的硅纳米晶颗粒和硅纳米晶薄膜的制备方法,并对比了不同方法制备硅纳米晶体的优缺点。着重介绍了硅纳米晶体在太阳电池中应用的几种方式,包括利用纯硅纳米晶薄膜制备太阳电池、硅纳米晶体与有机薄膜基质结合形成复合结构太阳电池、含有硅纳米晶颗粒的硅墨水在太阳电池中的应用等。

英文摘要：

Because of the quantum confinement effect, silicon nanocrystals exhibit some new features different from bulk silicon, such as enhanced photoluminescence and adjustable optical band gap, etc. Silicon nanocrystals have attracted much attention in the fields of microelectronics, photovoltaic, biomedicine and so on. In this paper, the different preparation methods of freestanding silicon nanocrystals and silicon nanocrystals embedded in thin films are reviewed, the advantages and disadvantages of different preparation methods are analyzed. Furthermore, the applications of silicon nanocrystals are focused on photovoltaic, including solar ceils made up of pure silicon-nanocrystal films, organic solar cells combined with silicon nanocrystals, and silicon nanocrystals ink for solar ceils.