Fig. 5: The energy loss mechanisms of HC (hot electrons only), and their transfer to energy-selective contacts (ESCs). | Light: Science & Applications

Fig. 5: The energy loss mechanisms of HC (hot electrons only), and their transfer to energy-selective contacts (ESCs).

From: There is plenty of room at the top: generation of hot charge carriers and their applications in perovskite and other semiconductor-based optoelectronic devices

Fig. 5

The numerical labels indicate each specific process, namely (1) exciton generation, (2) hot electrons reflection at the ESC, (3) electron–electron collision, (4) impact ionization, (5) sub-bandgap photons reabsorbed by free electrons, (6) emission of optical phonon, (7) re-absorption of optical phonon, (8) quasi-ballistic transport of HC, (9) tunneling of HC from the photoabsorber to the interfacial contact. The figure is taken with permission from ref. 5

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