Photo-excited hot carrier dynamics in hydrogenated amorphous silicon imaged by 4D electron microscopy.

@article{Liao2017PhotoexcitedHC,
  title={Photo-excited hot carrier dynamics in hydrogenated amorphous silicon imaged by 4D electron microscopy.},
  author={B. Liao and E. Najafi and H. Li and A. Minnich and A. Zewail},
  journal={Nature nanotechnology},
  year={2017},
  volume={12 9},
  pages={
          871-876
        }
}
Charge carrier dynamics in amorphous semiconductors has been a topic of intense research that has been propelled by modern applications in thin-film solar cells, transistors and optical sensors. Charge transport in these materials differs fundamentally from that in crystalline semiconductors owing to the lack of long-range order and high defect density. Despite the existence of well-established experimental techniques such as photoconductivity time-of-flight and ultrafast optical measurements… Expand
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