skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on January 4, 2019

Title: Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays

By using multiple growth steps that separate the nucleation and growth processes, we show that nearly intrinsic InN single nanocrystals of high optical quality can be formed on patterned GaN nanowire arrays by molecular beam epitaxy. The InN nanostructures form into well-defined hexagonal prisms with pyramidal tops. Micro-photoluminescence (μ-PL) is carried out at low temperature (LT: 28.2 K) and room temperature (RT: 285 K) to gauge the relative material quality of the InN nanostructures. Nanopyramidal prisms grown using a three-step growth method are found to show superior quantum efficiency. In conclusion, excitation and temperature dependent μ-PL demonstrates the very high quality and nearly intrinsic nature of the ordered InN nanostructure arrays.
Authors:
 [1] ;  [2] ; ORCiD logo [2] ; ORCiD logo [3]
  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Electrical and Computer Engineering
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. The Ohio State Univ., Columbus, OH (United States). Dept. of Electrical and Computer Engineering and Dept. of Materials Science and Engineering
Publication Date:
Report Number(s):
SAND-2018-2138J
Journal ID: ISSN 1528-7483; 661003
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Crystal Growth and Design
Additional Journal Information:
Journal Volume: 18; Journal Issue: 2; Journal ID: ISSN 1528-7483
Publisher:
American Chemical Society
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY
OSTI Identifier:
1426802

Golam Sarwar, A. T. M., Leung, Benjamin, Wang, George T., and Myers, Roberto C.. Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays. United States: N. p., Web. doi:10.1021/acs.cgd.7b01725.
Golam Sarwar, A. T. M., Leung, Benjamin, Wang, George T., & Myers, Roberto C.. Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays. United States. doi:10.1021/acs.cgd.7b01725.
Golam Sarwar, A. T. M., Leung, Benjamin, Wang, George T., and Myers, Roberto C.. 2018. "Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays". United States. doi:10.1021/acs.cgd.7b01725.
@article{osti_1426802,
title = {Hexagonal Nanopyramidal Prisms of Nearly Intrinsic InN on Patterned GaN Nanowire Arrays},
author = {Golam Sarwar, A. T. M. and Leung, Benjamin and Wang, George T. and Myers, Roberto C.},
abstractNote = {By using multiple growth steps that separate the nucleation and growth processes, we show that nearly intrinsic InN single nanocrystals of high optical quality can be formed on patterned GaN nanowire arrays by molecular beam epitaxy. The InN nanostructures form into well-defined hexagonal prisms with pyramidal tops. Micro-photoluminescence (μ-PL) is carried out at low temperature (LT: 28.2 K) and room temperature (RT: 285 K) to gauge the relative material quality of the InN nanostructures. Nanopyramidal prisms grown using a three-step growth method are found to show superior quantum efficiency. In conclusion, excitation and temperature dependent μ-PL demonstrates the very high quality and nearly intrinsic nature of the ordered InN nanostructure arrays.},
doi = {10.1021/acs.cgd.7b01725},
journal = {Crystal Growth and Design},
number = 2,
volume = 18,
place = {United States},
year = {2018},
month = {1}
}