Anomalous Photoluminescence of Weakly Confined Excitons including Radiative Correction in Nano-to-Bulk Crossover Regime
Anomalous Photoluminescence of Weakly Confined Excitons including Radiative Correction in Nano-to-Bulk Crossover Regime
复制标题
弱约束激子的反常光致发光，包括纳米到块体交叉机制中的辐射校正
DOI：
10.1088/1742-6596/619/1/012012
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
N. Yokoshi and H. Ishihara
中科院分区：
文献类型：
--
作者：
T. Matsuda;N. Yokoshi and H. Ishihara
We develop a theoretical formalism to calculate photoluminescence (PL) spectrum of weakly confined excitons incorporating the microscopic nonlocal optical response. The nonlocality is caused by the center-of-mass (cm) motion of exciton and becomes remarkable in nano-to-bulk crossover regime. The theory successfully explains the characteristics of recently observed peculiar PL spectra in high quality CuCl films [5], wherein the signals appear at the exciton states with the very large radiative corrections not only for the lowest level but also for the higher ones including non-dipole types of excitons.
