NDLI: Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates

Content Provider	PubMed Central
Author	Han, Ning Hou, Jared J. Wang, Fengyun Yip, Senpo Lin, Hao Fang, Ming Xiu, Fei Shi, Xiaoling Hung, Takfu Ho, Johnny C.
Copyright Year	2012
Abstract	One of the challenges to prepare high-performance and uniform III-V semiconductor nanowires (NWs) is to control the crystal structure in large-scale. A mixed crystal phase is usually observed due to the small surface energy difference between the cubic zincblende (ZB) and hexagonal wurtzite (WZ) structures, especially on non-crystalline substrates. Here, utilizing Au film as thin as 0.1 nm as the catalyst, we successfully demonstrate the large-scale synthesis of pure-phase WZ GaAs NWs on amorphous SiO2/Si substrates. The obtained NWs are smooth, uniform with a high aspect ratio, and have a narrow diameter distribution of 9.5 ± 1.4 nm. The WZ structure is verified by crystallographic investigations, and the corresponding electronic bandgap is also determined to be approximately 1.62 eV by the reflectance measurement. The formation mechanism of WZ NWs is mainly attributed to the ultra-small NW diameter and the very narrow diameter distribution associated, where the WZ phase is more thermodynamically stable compared to the ZB structure. After configured as NW field-effect-transistors, a high I ON/I OFF ratio of 104 − 105 is obtained, operating in the enhancement device mode. The preparation technology and good uniform performance here have illustrated a great promise for the large-scale synthesis of pure phase NWs for electronic and optical applications.
Related Links	http://dx.doi.org/10.1186/1556-276x-7-632
Ending Page	632
Page Count	1
Starting Page	632
File Format	PDF
ISSN	1556276X
e-ISSN	1556276X
Journal	Nanoscale Research Letters
Issue Number	1
Volume Number	7
Language	English
Publisher	Springer
Publisher Date	2012-01-01
Access Restriction	Open
Rights Holder	Springer
Subject Keyword	Materials Science(all) Condensed Matter Physics Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates.

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates

Evolution of Wurtzite Structured GaAs Shells Around InAs Nanowire Cores

Multilayers of InGaAs Nanostructures Grown on GaAs(210) Substrates

The phase transformation of CuInS2 from chalcopyrite to wurtzite

Rapid large-scale preparation of ZnO nanowires for photocatalytic application

Various Quantum- and Nano-Structures by III–V Droplet Epitaxy on GaAs Substrates

Large-scale preparation of nanoporous TiO2 film on titanium substrate with improved photoelectrochemical performance

Deep-level Transient Spectroscopy of GaAs/AlGaAs Multi-Quantum Wells Grown on (100) and (311)B GaAs Substrates

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates

Similar Documents

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates.

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates

Evolution of Wurtzite Structured GaAs Shells Around InAs Nanowire Cores

Multilayers of InGaAs Nanostructures Grown on GaAs(210) Substrates

The phase transformation of CuInS2 from chalcopyrite to wurtzite

Rapid large-scale preparation of ZnO nanowires for photocatalytic application

Various Quantum- and Nano-Structures by III–V Droplet Epitaxy on GaAs Substrates

Large-scale preparation of nanoporous TiO2 film on titanium substrate with improved photoelectrochemical performance

Deep-level Transient Spectroscopy of GaAs/AlGaAs Multi-Quantum Wells Grown on (100) and (311)B GaAs Substrates

Large-scale and uniform preparation of pure-phase wurtzite GaAs NWs on non-crystalline substrates