Phase perfection in zinc Blende and Wurtzite III-V nanowires using basic growth parameters

Nano Letters
Hannah J JoyceChennupati Jagadish

Abstract

Controlling the crystallographic phase purity of III-V nanowires is notoriously difficult, yet this is essential for future nanowire devices. Reported methods for controlling nanowire phase require dopant addition, or a restricted choice of nanowire diameter, and only rarely yield a pure phase. Here we demonstrate that phase-perfect nanowires, of arbitrary diameter, can be achieved simply by tailoring basic growth parameters: temperature and V/III ratio. Phase purity is achieved without sacrificing important specifications of diameter and dopant levels. Pure zinc blende nanowires, free of twin defects, were achieved using a low growth temperature coupled with a high V/III ratio. Conversely, a high growth temperature coupled with a low V/III ratio produced pure wurtzite nanowires free of stacking faults. We present a comprehensive nucleation model to explain the formation of these markedly different crystal phases under these growth conditions. Critical to achieving phase purity are changes in surface energy of the nanowire side facets, which in turn are controlled by the basic growth parameters of temperature and V/III ratio. This ability to tune crystal structure between twin-free zinc blende and stacking-fault-free wurtzite n...Continue Reading

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Citations

Apr 2, 2011·ACS Applied Materials & Interfaces·Chet SteinhagenBrian A Korgel
Mar 23, 2011·Nano Letters·Rienk E AlgraErik P A M Bakkers
Jul 21, 2011·Nano Letters·Marta GalickaPerla Kacman
Jul 27, 2011·Nano Letters·Maria E MessingChennupati Jagadish
Jun 1, 2012·Nano Letters·Ildar R Musin, Michael A Filler
Dec 22, 2012·Nano Letters·Sam CrawfordSilvija Gradečak
Jun 28, 2013·Nano Letters·Changlin ZhengJoanne Etheridge
Aug 1, 2013·Nano Letters·Jia WangErik P A M Bakkers
Oct 1, 2013·Nano Letters·Zhechao WangDries Van Thourhout
Jun 12, 2012·ACS Nano·Jonas JohanssonKimberly A Dick
Aug 31, 2013·ACS Nano·Tim BurgessChennupati Jagadish
Oct 26, 2012·Nanoscale Research Letters·Hong-Yi XuJin Zou
Jan 6, 2016·Nano Letters·Fudong Wang, William E Buhro
Dec 22, 2015·Nano Letters·Heidi PottsAnna Fontcuberta i Morral
Nov 13, 2012·Ultramicroscopy·Sichao DuRongkun Zheng
Aug 27, 2014·Nano Letters·Reza SanatiniaMarcin Swillo
Mar 8, 2013·Nano Letters·S AssaliE P A M Bakkers
Oct 27, 2015·Crystal Growth & Design·Daniel JacobssonJonas Johansson
Mar 26, 2011·Nano Letters·Dominik KriegnerGünther Bauer
Nov 6, 2015·Nano Letters·S AssaliE P A M Bakkers
Mar 18, 2016·Nature·Daniel JacobssonFrances M Ross

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