Study on Photoluminescence Spectra of a(CdSe/ZnS) Quantum-dot Doped Fiber in Low Doped Concentrations
低浓度掺杂CdSe/ZnS量子点光纤光致荧光光谱特性研究

Photoluminescence(PL) spectra of a CdSe/ZnS-quantum-dot(QD)-doped fiber in low doped concentrations were investigated by measuring the PL spectra of the QD-doped fiber with different fiber lengths and doped concentrations.Effects of the fiber length and the doped concentration on the spectra were discussed.Compared with the measured PL spectra of the QD before doping into the fiber,a red shift of the PL-peak wavelength occured after doping due to a re-absorption/excitation effect in the fiber configuration....