Optical Absorption of Confined Excitons of TICI Microcrystals Evaporated on PMMA Thin Films : Condensed Matter: Electronic Properties, etc.

概要

論文の詳細を見る
Optical absorption spectra of the direct exciton of TlCl microcrystals evaporated on thin films of organic polymer are measured at 5.0K. The energies of t,he absorption bands shift to higher energy with decreasing microcrystal size. A new absorption band, which was not observed in a bulk crystal, is found in a microcrystal. The oscillator strength of the lower energy component of the doublet exciton states reduces in the weak confinement regime with decreasing microcrystal size and diminishes in the strong confinement regime. The experimental results are discussed with the quantum size effect on the electron-hole exchange interaction in an exciton.
社団法人日本物理学会の論文
2001-02-15