Energy transfer and optical functionalities in nanoparticle heterostructures

我们利用先进的激光光谱技术研究了具有异质界面和纳米异质结构的半导体纳米粒子的基本光学性质。我们阐明了掺杂过渡金属离子的稀磁半导体纳米粒子的磁光性质，取向纳米粒子和纳米粒子在不同环境中的光致发光特性，以及具有异质界面的纳米粒子中的载流子复合动力学。基于对纳米粒子界面能量传递机制的理解，探索了新的光学功能。

We studied the fundamental optical properties of semiconductor nanoparticles with heterointerfaces and nanoparticle-based heterostructures using advanced laser spectroscopy. We clarified the magneto-optical properties of diluted magnetic semiconductor nanoparticles doped with transition-metal ions, photoluminescence properties of aligned nanoparticles and nanoparticles on different surrounding environments, and carrier recombination dynamics in nanoparticles with heterointerfaces. Novel optical functionalities were explored based on the understanding of the energy transfer mechanism at the nanoparticle interfaces.