这句英语写的我觉得太复杂，望大虾修改下：
The effects of annealing temperature and annealing time under oxygen-plasma atmosphere on porous silicon (porous silicon, PS) were investigated by photoluminescence (PL) spectra and Fourier transform infrared spectrometry.
原意要表达：
将多孔硅 (porous silicon, PS) 样品在氧等离子体环境中退火，探究了退火温度和时间对PS光学特性的影响，通过光致发光 (photoluminescence, PL) 光谱和傅里叶变换红外光谱对样品进行了分析。
The effects of annealing temperature and time at oxygen-plasma atmosphere on porous silicon (porous silicon, PS) were investigated through photoluminescence (PL) spectra and Fourier transform infrared spectrometry.
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