Abstract

Film structures of porous graphene have been produced by irradiating a polyimide film with focused radiation of a continuous CO₂ laser. The generation of nanosecond photocurrent pulses induced by nanosecond laser pulses in a wide wavelength range has been observed in the obtained structures. It has been demonstrated that the photocurrent increases linearly with pulsed laser power and is an odd function of the angle of incidence of radiation on the film structure. The wavelength dependence of the coefficient of conversion of laser power into photocurrent has been measured. The obtained data have been interpreted as a result of current generation due to photon drag effect.

中文翻译：

---

聚酰亚胺薄膜上的激光诱导石墨烯：光子拖曳效应的观察

摘要

通过用连续CO ₂激光器的聚焦辐射照射聚酰亚胺膜来制备多孔石墨烯的膜结构。在所获得的结构中，已经观察到由纳秒激光脉冲在宽波长范围内引起的纳秒光电流脉冲的产生。已经证明，光电流随着脉冲激光功率线性增加，并且是辐射在膜结构上的入射角的奇函数。已经测量了激光功率转换成光电流的系数的波长依赖性。由于光子拖曳效应，已将获得的数据解释为电流产生的结果。