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Iron Nanowire Fabrication by Nano-Porous Anodized Aluminum and its Characterization
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Composition and bandgap-graded semiconductor alloy nanowires.
Xiujuan Zhuang1, C Z Ning, Anlian Pan
1College of Physics and Microelectronics Science, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Hunan University, Changsha, 410082, China.
Advanced Materials (Deerfield Beach, Fla.)
|November 23, 2011
Summary
Semiconductor alloy nanowires with graded bandgaps enable novel optoelectronic devices. This review covers their synthesis, applications in lasers, detectors, LEDs, and solar cells, highlighting future opportunities.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Semiconductor alloy nanowires offer unique properties for advanced devices.
- Spatially graded compositions and bandgaps are key to multifunctional optoelectronics.
Purpose of the Study:
- To review recent advancements in composition-graded semiconductor alloy nanowires.
- To detail synthesis approaches and diverse applications of these nanowires.
Main Methods:
- Summarizing various growth methods for graded nanowires.
- Presenting two primary grading approaches: along a substrate and along individual nanowires.
Main Results:
- Composition-graded nanowires enable tunable lasers, multispectral photodetectors, and full-spectrum solar cells.
- Applications include white-light LEDs and multi-terminal photodetectors.
Conclusions:
- Composition-graded semiconductor alloy nanowires represent a promising platform for next-generation optoelectronics.
- Future research should address challenges and explore new opportunities in this field.
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