Femtosecond excitation correlation spectroscopy of single-walled carbon nanotubes: Analysis based on nonradiative multiexciton recombination processes

Article

关键词: TIME-RESOLVED PHOTOLUMINESCENCE;    QUANTUM-WELL STRUCTURES;    INTENSITY CORRELATION;    LUMINESCENCE;    GAAS;    DYNAMICS;   

DOI  :  10.1103/PhysRevB.80.235433

来源: SCIE

【 摘 要 】

We studied the nonlinear time-resolved luminescence signals due to multiexciton recombination processes in single-walled carbon nanotubes (SWNTs) using femtosecond excitation correlation (FEC) spectroscopy. From theoretical analysis of the FEC signals, we found that the FEC signals in the long time range are dominated by the single exciton decay in SWNTs, where the exciton-exciton annihilation process is efficient. Our results provide a simple method to clarify the single exciton decay dynamics in low-dimensional materials.

【 授权许可】

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