Skip to main content Accessibility help
×
Home
Hostname: page-component-55597f9d44-dfw9g Total loading time: 0.427 Render date: 2022-08-16T07:33:56.645Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true } hasContentIssue true

Growth of Gallium Nitride Nanowires and Nanospirals

Published online by Cambridge University Press:  01 February 2011

Goutam Koley
Affiliation:
koley@engr.sc.edu, University of South Carolina, Electrical Engineering, 3A12 Swearingen Center, Columbia, SC, 29208, United States, 8037773469
Zhihua Cai
Affiliation:
caiz@engr.sc.edu, University of South Carolina, Electrcial Engineering, 1B27 Swearingen Center, Columbia, SC, 29208, United States
Get access

Abstract

GaN nanostructure synthesis was done in a quartz tube furnace using ammonia and liquid Ga as precursors, and hydrogen as the carrier gas. Ni nanoparticles formed due to annealing, has been used as the catalyst layer, facilitating vapor-liquid-solid growth of the nanostructures. The growth process resulted in the formation of two types of structures, straight nanowires, and irregular growth sometimes resulting in nanospirals. Growth using uniform distribution of catalyst over the entire surface resulted in growth of straight nanowires, while growth performed on catalyst patterned surface resulted in growth of nanospirals. The diameter of the nanowires varied from 20 – 100 nm, while for spirals the cross-sectional diameters were found to be in the range of 100 nm – 1 micron, and spiral diameters in the range of several microns. Using the present growth system and gas flow set-up, it was possible to synthesize ultra-long nanowires and spirals, with overall lengths exceeding 70 microns. The regular straight nanowires were found to have a smooth circular cross-section, while the irregular wires and nanospirals were found to have a very rough surface with approximate hexagonal or triangular cross-sections. Some of the spirals changed into straight nanowires with uniform triangular cross-sections. While more investigations are required to fully establish their structures, based on preliminary characterization and past studies, we conclude that the nanowires with circular cross-sections grow along the c-direction [0001], while the spirals and consequent triangular cross-section nanowires grow along one of the non-polar directions. The formation of spirals themselves may be related to the polarization properties of GaN, similar to those predicted for ZnO nanosprings and nanoribbons.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Huang, Y., Duan, X., Cui, Y., and Lieber, C. M., Nano Lett. 2, 101 (2002).CrossRefGoogle Scholar
2. Kim, J., So, H. M., Park, J. W., Kim, J. J., Kim, J., Lee, C. J., and Lyu, S. C., Appl. Phys. Lett. 80, 3548 (2002).CrossRefGoogle Scholar
3. 3. Choi, H., Johnson, J. C., He, R., Lee, S., Kim, F., Pauzauskie, P., Goldberger, J., Saykally, R. J., and Yang, P., J. Phys. Chem. B 107, 8721 (2003).CrossRefGoogle Scholar
4. 4. Qian, F., Li, Y., Gradecak, S., Wang, D., Barrelet, C. J., and Lieber, C. M., Nano Lett. 4, 1975 (2004).CrossRefGoogle Scholar
5. 5. Huang, Y., Duan, X., Cui, Y., and Lieber, C. M., Nano Letters 2 101 (2002).10.1021/nl015667dCrossRefGoogle Scholar
6. 6. Kuykendall, T., Pauzauskie, P., Lee, S., Zhang, Y., Goldberger, J., and Yang, P., Nano Letters 3 1063(2003).CrossRefGoogle Scholar
7. 7. Ambacher, O., Smart, J., Shealy, J. R., Weimann, N. G., Chu, K., Murphy, M., Schaff, W. J., Eastmen, L. F., Dimitrov, R., Wittmer, L., Stutzmann, M., Reiger, W., and Hilsenbeck, J., J. of Appl. Phys. 85, 3222 (1999).CrossRefGoogle Scholar

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Growth of Gallium Nitride Nanowires and Nanospirals
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

Growth of Gallium Nitride Nanowires and Nanospirals
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Growth of Gallium Nitride Nanowires and Nanospirals
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *