【中文摘要】 报道了名义上无序GaxIn1 xP(x =0 .5 2 )合金的发光瞬态过程 ,对样品在 77K和 30 0K下不同激发强度的时间衰退过程和时间分辨光谱的分析表明 ,这块名义上无序的合金也存在很微弱的有序度 .在 77K的高激发强度下 ,衰退过程符合单指数衰退规律 ,在低激发强度下 ,符合双指数衰退规律 ;而在 30 0K下 ,衰退过程都符合双指数衰退规律 .在 77K下的时间分辨光谱里观察到了PL谱峰的蓝移现象和载流子的转移过程
【英文摘要】 Luminescence decay and Time-Resolved Photoluminescence(TRPL) spectroscopy were applied to study the transient luminescence process of the nominally disordered GaInP alloy in this paper. The luminescence decay of GaInP alloy is temperature and excitation-intensity dependent. At 77 K and under high excitation intensity, the luminescence decay shows single exponential decay, while under low excitation intensity of 77 K or at 300 K, the luminescence decay shows double exponential decay. The analysis indicates t...福建省自然科学基金 (A9910004,A0110007)资助项
