Strong Hot Carrier Effects Observed in a Single Nanowire Heterostructure

Iraj Abbasian Shojaei; Samuel Linser; Giriraj Jnawali; N. Wickramasuriya; Howard E. Jackson; Leigh M. Smith; Fariborz Kargar; Alexander A. Balandin; Xiaoming Yuan; Philip Caroff; H. Hoe Tan; Chennupati Jagadish

doi:10.1021/acs.nanolett.9b01345

Strong Hot Carrier Effects Observed in a Single Nanowire Heterostructure

Mesoscale and Nanoscale Physics 2019-09-18 v3

Authors: Iraj Abbasian Shojaei , Samuel Linser , Giriraj Jnawali , N. Wickramasuriya , Howard E. Jackson , Leigh M. Smith , Fariborz Kargar , Alexander A. Balandin , Xiaoming Yuan , Philip Caroff , H. Hoe Tan , Chennupati Jagadish

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Abstract

We use Transient Rayleigh Scattering to study the thermalization of hot photoexcited carriers in single GaAsSb/InP nanowire heterostructures. By comparing the energy loss rate in single bare GaAsSb nanowires which do not show substantial hot carrier effects with the core-shell nanowires, we show that the presence of an InP shell substantially suppresses the LO phonon emission rate at low temperatures leading to strong hot carrier effects.

Keywords

hot carrier effects nanowire heterostructure transient rayleigh scattering gaassb/inp lo phonon emission

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@article{arxiv.1810.12516,
  title  = {Strong Hot Carrier Effects Observed in a Single Nanowire Heterostructure},
  author = {Iraj Abbasian Shojaei and Samuel Linser and Giriraj Jnawali and N. Wickramasuriya and Howard E. Jackson and Leigh M. Smith and Fariborz Kargar and Alexander A. Balandin and Xiaoming Yuan and Philip Caroff and H. Hoe Tan and Chennupati Jagadish},
  journal= {arXiv preprint arXiv:1810.12516},
  year   = {2019}
}

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17 pages, 5 figures

Strong Hot Carrier Effects Observed in a Single Nanowire Heterostructure

Abstract

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