Strong Hot Carrier Effects in Single Nanowire Heterostructures

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

doi:10.1021/acs.nanolett.9b01345

Strong Hot Carrier Effects in Single Nanowire Heterostructures

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We use transient Rayleigh scattering to study the thermalization of hot photoexcited carriers in single GaAs_0.7Sb_0.3/InP nanowire heterostructures. By comparing the energy loss rate in single core-only GaAs_0.7Sb_0.3 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 longitudinal optical phonon emission rate at low temperatures which then leads to strong hot carrier effects.

Original language	English
Pages (from-to)	5062-5069
Number of pages	8
Journal	Nano Letters
Volume	19
Issue number	8
DOIs	https://doi.org/10.1021/acs.nanolett.9b01345
Publication status	Published - 14 Aug 2019

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10.1021/acs.nanolett.9b01345

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title = "Strong Hot Carrier Effects in Single Nanowire Heterostructures",

abstract = "We use transient Rayleigh scattering to study the thermalization of hot photoexcited carriers in single GaAs0.7Sb0.3/InP nanowire heterostructures. By comparing the energy loss rate in single core-only GaAs0.7Sb0.3 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 longitudinal optical phonon emission rate at low temperatures which then leads to strong hot carrier effects.",

keywords = "Hot carrier effects, carrier thermalization, hot phonons",

author = "Shojaei, {Iraj Abbasian} and Samuel Linser and Giriraj Jnawali and N. Wickramasuriya and Jackson, {Howard E.} and Smith, {Leigh M.} and Fariborz Kargar and Balandin, {Alexander A.} and Xiaoming Yuan and Philip Caroff and Tan, {Hark Hoe} and Chennupati Jagadish",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = aug,

day = "14",

doi = "10.1021/acs.nanolett.9b01345",

language = "English",

volume = "19",

pages = "5062--5069",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "8",

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TY - JOUR

T1 - Strong Hot Carrier Effects in Single Nanowire Heterostructures

AU - Shojaei, Iraj Abbasian

AU - Linser, Samuel

AU - Jnawali, Giriraj

AU - Wickramasuriya, N.

AU - Jackson, Howard E.

AU - Smith, Leigh M.

AU - Kargar, Fariborz

AU - Balandin, Alexander A.

AU - Yuan, Xiaoming

AU - Caroff, Philip

AU - Tan, Hark Hoe

AU - Jagadish, Chennupati

PY - 2019/8/14

Y1 - 2019/8/14

N2 - We use transient Rayleigh scattering to study the thermalization of hot photoexcited carriers in single GaAs0.7Sb0.3/InP nanowire heterostructures. By comparing the energy loss rate in single core-only GaAs0.7Sb0.3 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 longitudinal optical phonon emission rate at low temperatures which then leads to strong hot carrier effects.

AB - We use transient Rayleigh scattering to study the thermalization of hot photoexcited carriers in single GaAs0.7Sb0.3/InP nanowire heterostructures. By comparing the energy loss rate in single core-only GaAs0.7Sb0.3 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 longitudinal optical phonon emission rate at low temperatures which then leads to strong hot carrier effects.

KW - Hot carrier effects

KW - carrier thermalization

KW - hot phonons

UR - http://www.scopus.com/inward/record.url?scp=85071353063&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.9b01345

DO - 10.1021/acs.nanolett.9b01345

M3 - Article

SN - 1530-6984

VL - 19

SP - 5062

EP - 5069

JO - Nano Letters

JF - Nano Letters

IS - 8

ER -

Strong Hot Carrier Effects in Single Nanowire Heterostructures

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