Multi-time scale photoelectric behavior in facile fabricated transparent and flexible silicon nanowires aerogel membrane
Multi-time scale photoelectric behavior in facile fabricated transparent and flexible silicon nanowires aerogel membrane
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容易制造的透明柔性硅纳米线气凝胶膜的多时间尺度光电行为
DOI：
10.1007/s12274-021-3709-0
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发表时间：
2021-08
期刊：
影响因子：
9.9
通讯作者：
王成新
中科院分区：
文献类型：
--
作者：
杨锦;何静波;邹晓彬;孙博;孙勇;王成新
近年来，透明和柔性材料在电子和光电子领域中被广泛地用作平面电极、能量转换组件和传感单元。硅作为应用最广泛的半导体材料，其研究进展意义重大，但难度较大。在此，我们报道了一种一步法制备柔性透明硅纳米线气凝胶膜的方法。根据夹层石墨烯/硅纳米线膜/Al器件的光电性能，证明了包括界面捕获载流子和价电子跃迁的竞争载流子动力学，即，由激光激发的自由载流子产生主导的快速正光响应（约500 ms）和随后由于激光加热引起的缓慢负光电流演化涉及多个能级过程（> 10 s）。这些结果有助于硅纳米线自组装结构的制备，也有助于探索其在柔性和透明器件中的光电特性。
In recent years, transparent and flexible materials have been widely pursued in electronics and optoelectronics fields for usage as planar electrodes, energy conversion components and sensing units. As the most widely applied semiconductor material, the related progress in silicon is of great significance although with large difficulty. Herein, we report a one-step method to achieve flexible and transparent silicon nanowires aerogel membrane. A competitive carrier kinetics involving interfacial trapped carriers and the valence electrons transition is demonstrated, according to the photoelectric performance of a sandwiched graphene/silicon nanowires membrane/Al device, i.e., rapidly positive photoresponse dominated by laser excited free-carriers generation (∼ 500 ms) and subsequent slow negative photocurrent evolution due to laser heating involved multi-levels process (> 10 s). These results contribute to fabrication of silicon nanowire self-assembly structures and also the exploration of their optoelectrical properties in flexible and transparent devices.
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影响因子：
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