Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching
Creators
- 1. Department of Photonics, National Chiao Tung University, Hsinchu 300, Taiwan (China)
- 2. Department of Materials Engineering, National Chung Hsing University, Taichung 402, Taiwan (China)
- 3. Department of Physics, National Changhua University of Education, Changhua 500, Taiwan (China)
Description
In this study, we have fabricated In0.3Ga0.7N/GaN green emission nanorods and demonstrated optical enhancement by photoluminescence (PL) measurements. An enhancement factor of 3.5 and an emission peak blue-shift of 6.6 nm were observed at 300 K for the green emission nanorods structure in comparison to the as-grown flat surface structure. The blue-shift phenomenon from the nanorod structure could be caused by a partial reduction of the internal piezoelectric field. However, the similar carrier decay time for the green emission nanorod structure and the as-grown flat surface structure observed in low-temperature time-resolved PL measurements indicates that the dominant optical enhancement mechanism of the green emission nanorod structure could be mainly resulting from the large emission surface areas and the multiple scattering paths between the nanorods
Additional details
Identifiers
- DOI
- 10.1088/0957-4484/18/33/335706;
- PII
- S0957-4484(07)47601-2;
Publishing Information
- Journal Title
- Nanotechnology (Print)
- Journal Volume
- 18
- Journal Issue
- 33
- Journal Page Range
- p. 335706
- ISSN
- 0957-4484
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39040731
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ETCHING; GALLIUM NITRIDES; INDIUM NITRIDES; MULTIPLE SCATTERING; NANOSTRUCTURES; OPTICAL PROPERTIES; PHOTOLUMINESCENCE; PIEZOELECTRICITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TIME RESOLUTION
- Descriptors DEC
- ELECTRICITY; EMISSION; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; LUMINESCENCE; NITRIDES; NITROGEN COMPOUNDS; PHOTON EMISSION; PHYSICAL PROPERTIES; PNICTIDES; RESOLUTION; SCATTERING; SURFACE FINISHING; TEMPERATURE RANGE; TIMING PROPERTIES