Phase Transformation in Radially Merged Wurtzite GaAs Nanowires

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10311938" target="_blank" >RIV/00216208:11320/15:10311938 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/acs.cgd.5b00507" target="_blank" >http://dx.doi.org/10.1021/acs.cgd.5b00507</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.cgd.5b00507" target="_blank" >10.1021/acs.cgd.5b00507</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phase Transformation in Radially Merged Wurtzite GaAs Nanowires

Popis výsledku v původním jazyce

III-V Nanowires (NWs) grown with metal organic chemical vapor deposition commonly show a polytypic crystal structure, allowing growth of structures not found in the bulk counterpart. In this paper we studied the radial overgrowth of pure wurtzite (WZ) GaAs nanowires and characterized the samples with high resolution X-ray diffraction (XRD) to reveal the crystal structure of the grown material. In particular, we investigated what happens when adjacent WZ NWs radially merge with each other by analyzing the evolution of XRD peaks for different amounts of radial overgrowth and merging. By preparing cross-sectional lamella samples we also analyzed the local crystal structure of partly merged NWs by transmission electron microscopy. Once individual NVVs start to merge, the crystal structure of the merged segments is transformed progressively from initial pure WZ to a mixed WZ/ZB structure. The merging process is then modeled using a simple combinatorial approach, which predicts that merging

Název v anglickém jazyce

Phase Transformation in Radially Merged Wurtzite GaAs Nanowires

Popis výsledku anglicky

III-V Nanowires (NWs) grown with metal organic chemical vapor deposition commonly show a polytypic crystal structure, allowing growth of structures not found in the bulk counterpart. In this paper we studied the radial overgrowth of pure wurtzite (WZ) GaAs nanowires and characterized the samples with high resolution X-ray diffraction (XRD) to reveal the crystal structure of the grown material. In particular, we investigated what happens when adjacent WZ NWs radially merge with each other by analyzing the evolution of XRD peaks for different amounts of radial overgrowth and merging. By preparing cross-sectional lamella samples we also analyzed the local crystal structure of partly merged NWs by transmission electron microscopy. Once individual NVVs start to merge, the crystal structure of the merged segments is transformed progressively from initial pure WZ to a mixed WZ/ZB structure. The merging process is then modeled using a simple combinatorial approach, which predicts that merging

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-08124S" target="_blank" >GA14-08124S: Rtg difraktometrie s vysokým rozlišením náhodných vrstevnatých systémů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Crystal Growth and Design

ISSN

1528-7483

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

4795-4803

Kód UT WoS článku

000362628800011

EID výsledku v databázi Scopus

2-s2.0-84943563482